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  • setCurrentTab Android

    - by Ali
    i have 4 tabs on my main screen, main ( set to current ) , Call, Email, Web When a user clicks on any of tab call, email or web, it starts making a call, or go to compose a email, or opens up the browser respectfully. Problem is, i want just three tabs (Call, Email, Web) and i Dont want any tab to be selected by default, means they should only become active when a user Touch them..(a call or any service cant be main at all) All java coding, XML file, and Manifest code is given below, XML File (tab_activity_layout) <?xml version="1.0" encoding="utf-8"?> <TabHost xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/tabhost" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="5dp"> <RelativeLayout android:layout_width="fill_parent" android:layout_height="fill_parent" > <TabWidget android:id="@android:id/tabs" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" /> <FrameLayout android:id="@android:id/tabcontent" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="5dp"></FrameLayout> </RelativeLayout> </LinearLayout> </TabHost> Java Coding (MainTabActivity) package com.NVT.android; import android.app.TabActivity; import android.content.Intent; import android.content.res.Resources; import android.os.Bundle; import android.widget.TabHost; public class MainTabActivity extends TabActivity{ public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.tab_activity_layout); Resources res = getResources(); // Resource object to get Drawables TabHost tabHost = getTabHost(); // The activity TabHost TabHost.TabSpec spec; // Resusable TabSpec for each tab Intent intent; // Reusable Intent for each tab // Create an Intent to launch an Activity for the tab (to be reused) intent = new Intent().setClass(this, Main.class); // Initialize a TabSpec for each tab and add it to the TabHost spec = tabHost.newTabSpec("main").setIndicator("Main", res.getDrawable(R.drawable.ic_tab_artists_grey)) .setContent(intent); tabHost.addTab(spec); TabHost host=getTabHost(); host.addTab(host.newTabSpec("one") .setIndicator("Call") .setContent(new Intent(this, CallService.class))); host.addTab(host.newTabSpec("two") .setIndicator("Email") .setContent(new Intent(this, EmailService.class))); host.addTab(host.newTabSpec("three") .setIndicator("Web") .setContent(new Intent(this, WebService.class))); } } Manifest file <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.NVT.android" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".Main" android:label="@string/app_name"> <!-- <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> --> </activity> <activity android:name=".MainTabActivity" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".Courses"> </activity> <activity android:name=".CampusMap"> </activity> <activity android:name=".GettingHere"> </activity> <activity android:name=".ILoveNescot"> </activity> <activity android:name=".FurtherEducationCourses"> </activity> <activity android:name=".HigherEducationCourses"> </activity> <activity android:name=".EmployersTrainingCourses"> </activity> <activity android:name=".WebService"> </activity> <activity android:name=".CallService"> </activity> <activity android:name=".EmailService"> </activity> </application> <uses-sdk android:minSdkVersion="9" /> <uses-permission android:name="android.permission.CALL_PHONE"></uses-permission> <uses-permission android:name="android.permission.INTERNET" /> </manifest>

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  • The Tab1.java from API Demo has exception.

    - by Kooper
    I don't know why.All my Tab programs have exception.Even from API Demo. Here is the code: package com.example.android.apis.view; import android.app.TabActivity; import android.os.Bundle; import android.widget.TabHost; import android.widget.TabHost.TabSpec; import android.view.LayoutInflater; import android.view.View; public class Tab1 extends TabActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TabHost tabHost = getTabHost(); LayoutInflater.from(this).inflate(R.layout.main,tabHost.getTabContentView(), true); tabHost.addTab(tabHost.newTabSpec("tab1") .setIndicator("tab1") .setContent(R.id.view1)); tabHost.addTab(tabHost.newTabSpec("tab2") .setIndicator("tab2") .setContent(R.id.view2)); tabHost.addTab(tabHost.newTabSpec("tab3") .setIndicator("tab3") .setContent(R.id.view3)); } } Here is the log: 06-13 17:24:38.336: WARN/jdwp(262): Debugger is telling the VM to exit with code=1 06-13 17:24:38.336: INFO/dalvikvm(262): GC lifetime allocation: 2511 bytes 06-13 17:24:38.416: DEBUG/Zygote(30): Process 262 exited cleanly (1) 06-13 17:24:38.456: INFO/ActivityManager(54): Process com.example.android.apis.view (pid 262) has died. 06-13 17:24:38.696: INFO/UsageStats(54): Unexpected resume of com.android.launcher while already resumed in com.example.android.apis.view 06-13 17:24:38.736: WARN/InputManagerService(54): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@44dc4b38 06-13 17:24:48.337: DEBUG/AndroidRuntime(269): AndroidRuntime START <<<<<<<<<<<<<< 06-13 17:24:48.346: DEBUG/AndroidRuntime(269): CheckJNI is ON 06-13 17:24:48.856: DEBUG/AndroidRuntime(269): --- registering native functions --- 06-13 17:24:49.596: DEBUG/ddm-heap(269): Got feature list request 06-13 17:24:50.576: DEBUG/AndroidRuntime(269): Shutting down VM 06-13 17:24:50.576: DEBUG/dalvikvm(269): DestroyJavaVM waiting for non-daemon threads to exit 06-13 17:24:50.576: DEBUG/dalvikvm(269): DestroyJavaVM shutting VM down 06-13 17:24:50.576: DEBUG/dalvikvm(269): HeapWorker thread shutting down 06-13 17:24:50.586: DEBUG/dalvikvm(269): HeapWorker thread has shut down 06-13 17:24:50.586: DEBUG/jdwp(269): JDWP shutting down net... 06-13 17:24:50.586: INFO/dalvikvm(269): Debugger has detached; object registry had 1 entries 06-13 17:24:50.596: ERROR/AndroidRuntime(269): ERROR: thread attach failed 06-13 17:24:50.606: DEBUG/dalvikvm(269): VM cleaning up 06-13 17:24:50.676: DEBUG/dalvikvm(269): LinearAlloc 0x0 used 628628 of 5242880 (11%) 06-13 17:24:51.476: DEBUG/AndroidRuntime(278): AndroidRuntime START <<<<<<<<<<<<<< 06-13 17:24:51.486: DEBUG/AndroidRuntime(278): CheckJNI is ON 06-13 17:24:51.986: DEBUG/AndroidRuntime(278): --- registering native functions --- 06-13 17:24:52.746: DEBUG/ddm-heap(278): Got feature list request 06-13 17:24:53.716: DEBUG/ActivityManager(54): Uninstalling process com.example.android.apis.view 06-13 17:24:53.726: INFO/ActivityManager(54): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.example.android.apis.view/.Tab1 } 06-13 17:24:53.876: DEBUG/AndroidRuntime(278): Shutting down VM 06-13 17:24:53.886: DEBUG/dalvikvm(278): DestroyJavaVM waiting for non-daemon threads to exit 06-13 17:24:53.916: DEBUG/dalvikvm(278): DestroyJavaVM shutting VM down 06-13 17:24:53.926: DEBUG/dalvikvm(278): HeapWorker thread shutting down 06-13 17:24:53.936: DEBUG/dalvikvm(278): HeapWorker thread has shut down 06-13 17:24:53.936: DEBUG/jdwp(278): JDWP shutting down net... 06-13 17:24:53.936: INFO/dalvikvm(278): Debugger has detached; object registry had 1 entries 06-13 17:24:53.957: DEBUG/dalvikvm(278): VM cleaning up 06-13 17:24:54.026: ERROR/AndroidRuntime(278): ERROR: thread attach failed 06-13 17:24:54.146: DEBUG/dalvikvm(278): LinearAlloc 0x0 used 638596 of 5242880 (12%) 06-13 17:24:54.286: INFO/ActivityManager(54): Start proc com.example.android.apis.view for activity com.example.android.apis.view/.Tab1: pid=285 uid=10054 gids={1015} 06-13 17:24:54.676: DEBUG/ddm-heap(285): Got feature list request 06-13 17:24:55.006: WARN/ActivityThread(285): Application com.example.android.apis.view is waiting for the debugger on port 8100... 06-13 17:24:55.126: INFO/System.out(285): Sending WAIT chunk 06-13 17:24:55.186: INFO/dalvikvm(285): Debugger is active 06-13 17:24:55.378: INFO/System.out(285): Debugger has connected 06-13 17:24:55.386: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:55.586: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:55.796: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:55.996: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:56.196: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:56.406: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:56.606: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:56.806: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:57.016: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:57.216: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:57.416: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:57.626: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:57.836: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:58.039: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:58.246: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:58.451: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:58.656: INFO/System.out(285): waiting for debugger to settle... 06-13 17:24:58.866: INFO/System.out(285): debugger has settled (1367) 06-13 17:24:59.126: ERROR/gralloc(54): [unregister] handle 0x129980 still locked (state=40000001) 06-13 17:25:03.816: WARN/ActivityManager(54): Launch timeout has expired, giving up wake lock! 06-13 17:25:04.906: WARN/ActivityManager(54): Activity idle timeout for HistoryRecord{44d60e10 com.example.android.apis.view/.Tab1}

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  • how to set the tabs in the bottom of the screen in android?

    - by androidbase
    hi all, i am working on tabactivity. i wanna show my tabwidget below the tabcontent(framelayout). i done it by setting the tabwiget tab attribute as android:gravity="bottom" but the framelayout cant align with those tabs. that is the tabs are shown at the bottom of the screen and overlap the framelayout how to do that? if set some height value to the framelayout it not optimized for all screens of android. what can i do? any idea???

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  • Switch back to previously selected tab after the activity is recreated

    - by ZelluX
    In my TabActivity the user may be asked to switch to browser activity for OAuth phase, and if the phase takes too much time, my activity will be killed. After the user switches back to my activity, its onCreate() method is invoked again and tabs are recreated. So I would like to know if there is any simple way to switch back to previous tab, and keep the tab as what it was. For example, one of the tab views contains a ViewSwitcher child, and I want to switch back to the switched view after recreating the activity.

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  • When pressing Back/Menu button my app hangs

    - by Pentium10
    I am having a really annoying bug, which yet I don't know how to trace it. I have an activity with 3 tabs, each populated by adapters build by asynctasks. They are displaying well, navigation is fine. I've extended TabActivity. But whenever I hit the Back/Menu/Search button it halts, then after a while the OS displays me this warning: Sorry Activity Contacts (in application MyApp) is not responding. Force close or Wait. How can I trace this problem on the phone?

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  • Start all tab's activities for pre-cache

    - by Pentium10
    I have a TabActivity with three tabs defined. The first tab is light-weight and renders in acceptable time. But the 2nd and 3rd tab, does need a couple of seconds to get visually rendered, after I click them. I would like to launch them, after I've loaded my first tab, in background for pre-cache. Once they are loaded, I can switch quickly between them. So I am wondering how can I launch the 2nd and 3rd tab. They are intents loaded in the view area.

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  • How to correctly populate records from SQLlite in ListActivity?

    - by Pavel
    Hi. Can someone please tell me how can I easily display every record from sqllite in ListActivity tab? I'm kinda confused with this. Do I have to create db from my helper class in TabActivity or ListActivity or both? My db helper class is as follow: package tabs.app; import android.content.ContentValues; import android.content.Context; import android.database.Cursor; import android.database.SQLException; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.util.Log; public class DBAdapter { private static String DB_PATH = "/data/data/tabs.app/databases/"; public static final String KEY_ROWID = "_id"; public static final String KEY_LATITUDE = "latitude"; public static final String KEY_LONGITUDE = "longitude"; private static final String TAG = "DBAdapter"; private static final String DATABASE_NAME = "coords"; private static final String DATABASE_TABLE = "coordsStorages"; private static final int DATABASE_VERSION = 2; /* private static final String DATABASE_CREATE = "create table coordsStorage (_id integer primary key autoincrement, latitude integer not null, longitude integer not null)"; */ public Context context; private DatabaseHelper DBHelper; private SQLiteDatabase db; public DBAdapter(Context ctx) { this.context = ctx; DBHelper = new DatabaseHelper(context); } private static class DatabaseHelper extends SQLiteOpenHelper { DatabaseHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); } @Override public void onCreate(SQLiteDatabase db) { db.execSQL("create table coordsStorages (_id integer primary key autoincrement, latitude integer not null, longitude integer not null)"); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { Log.w(TAG, "Upgrading database from version " + oldVersion + " to " + newVersion + ", which will destroy all old data"); db.execSQL("DROP TABLE IF EXISTS titles"); onCreate(db); } } //---opens the database--- public DBAdapter open() throws SQLException { db = DBHelper.getWritableDatabase(); return this; } //---closes the database--- public void close() { DBHelper.close(); } //---insert a title into the database--- public long insertCoords(int latitude, int longitude) { ContentValues initialValues = new ContentValues(); initialValues.put(KEY_LATITUDE, latitude); initialValues.put(KEY_LONGITUDE, longitude); return db.insert(DATABASE_TABLE, null, initialValues); } public void openDataBase() throws SQLException{ //Open the database String myPath = DB_PATH + DATABASE_NAME; db = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY); } //---deletes a particular title--- public boolean deleteTitle(long rowId) { return db.delete(DATABASE_TABLE, KEY_ROWID + "=" + rowId, null) > 0; } //---retrieves all the titles--- public Cursor getAllTitles() { return db.query(DATABASE_TABLE, new String[] { KEY_ROWID, KEY_LATITUDE, KEY_LONGITUDE}, null, null, null, null, null); } //---retrieves a particular title--- public Cursor getTitle(long rowId) throws SQLException { Cursor mCursor = db.query(true, DATABASE_TABLE, new String[] { KEY_ROWID, KEY_LATITUDE, KEY_LONGITUDE}, KEY_ROWID + "=" + rowId, null, null, null, null, null); if (mCursor != null) { mCursor.moveToFirst(); } return mCursor; } //---updates a title--- /*public boolean updateTitle(long rowId, int latitude, int longitude) { ContentValues args = new ContentValues(); args.put(KEY_LATITUDE, latitude); args.put(KEY_LONGITUDE, longitude); return db.update(DATABASE_TABLE, args, KEY_ROWID + "=" + rowId, null) > 0; }*/ } And Im trying to retrieve the records in TabActivity like this: public class Areas extends ListActivity { DBAdapter db; SimpleCursorAdapter mAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.areas_layout); db = new DBAdapter(this); db.open(); Cursor c = db.getAllTitles(); startManagingCursor(c); String[] display = new String[] { db.KEY_LATITUDE }; int[] to = new int[] { R.id.row_latitude}; /* String[] display2 = new String[] { db.KEY_LONGITUDE }; int[] to2 = new int[] { R.id.row_longitude};*/ mAdapter = new SimpleCursorAdapter(this, R.layout.areas_layout, c, display, to); setListAdapter(mAdapter); /* mAdapter2 = new SimpleCursorAdapter(this, R.layout.areas_layout, c, display2, to2); setListAdapter(mAdapter2);*/ db.close(); } /* private void fillData() { // Get all of the rows from the database and create the item list Cursor c = db.getAllTitles(); startManagingCursor(c); }*/ } Whenever I'm trying to do that the error log outputs this: 06-07 09:51:56.529: ERROR/AndroidRuntime(2034): Uncaught handler: thread main exiting due to uncaught exception 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): java.lang.RuntimeException: Unable to start activity ComponentInfo{tabs.app/tabs.app.Areas}: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list' 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.ActivityThread.startActivityNow(ActivityThread.java:2242) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.LocalActivityManager.moveToState(LocalActivityManager.java:127) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:339) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.widget.TabHost$IntentContentStrategy.getContentView(TabHost.java:631) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.widget.TabHost.setCurrentTab(TabHost.java:317) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.widget.TabHost$2.onTabSelectionChanged(TabHost.java:127) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.widget.TabWidget$TabClickListener.onClick(TabWidget.java:346) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.View.performClick(View.java:2344) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.View.onTouchEvent(View.java:4133) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.View.dispatchTouchEvent(View.java:3672) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:850) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1712) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1202) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.Activity.dispatchTouchEvent(Activity.java:1987) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1696) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.view.ViewRoot.handleMessage(ViewRoot.java:1658) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.os.Handler.dispatchMessage(Handler.java:99) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.os.Looper.loop(Looper.java:123) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.ActivityThread.main(ActivityThread.java:4203) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at java.lang.reflect.Method.invokeNative(Native Method) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at java.lang.reflect.Method.invoke(Method.java:521) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at dalvik.system.NativeStart.main(Native Method) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): Caused by: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list' 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.ListActivity.onContentChanged(ListActivity.java:236) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:316) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.Activity.setContentView(Activity.java:1620) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at tabs.app.Areas.onCreate(Areas.java:18) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364) 06-07 09:51:56.559: ERROR/AndroidRuntime(2034): ... 30 more 06-07 09:51:56.619: INFO/Process(51): Sending signal. PID: 2034 SIG: 3 06-07 09:51:56.619: INFO/dalvikvm(2034): threadid=7: reacting to signal 3 06-07 09:51:56.619: ERROR/dalvikvm(2034): Unable to open stack trace file '/data/anr/traces.txt': Permission denied Can someone please tell me what I'm doing wrong? Help greatly appreciated!

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  • embedding layout inside each tab? - (each tab has its own activity)

    - by Abhi
    I have started with the HelloTabwidget example and it works fine. Now what I am trying to do is have a layout inside each tab. here is what the code looks like myApp extends TabActivity { TabHost tabHost; onCreate() { setContentView (R.layout.main); tabHost = getTabHost(); TabHost.tabspec spec = tabHost.newTabSpec(..).setIndicator(...). setContent(new Intent().setClass(...)); tabHost.addTab(spec); : } } myTab1Actvity extends Activity { ListView myLV; EditText myET; onCreate() { setcontentView (TAB1_LAYOUT); myLV = findViewById(..); : myLV.setAdapter(aa); myET.setOnKeyListener(....) registerforContextMenu(myLV) } } when I run here is the stack trace ERROR/AndroidRuntime(691): java.lang.NullPointerException ERROR/AndroidRuntime(691): at android.widget.TabHost.dispatchWindowFocusChanged(TabHost.java:295) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.widget.TabHost.dispatchWindowFocusChanged(TabHost.java:295) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:661) ERROR/AndroidRuntime(691): at android.view.ViewRoot.handleMessage(ViewRoot.java:1819) ERROR/AndroidRuntime(691): at android.os.Handler.dispatchMessage(Handler.java:99) ERROR/AndroidRuntime(691): at android.os.Looper.loop(Looper.java:123) ERROR/AndroidRuntime(691): at android.app.ActivityThread.main(ActivityThread.java:4363) ERROR/AndroidRuntime(691): at java.lang.reflect.Method.invokeNative(Native Method) ERROR/AndroidRuntime(691): at java.lang.reflect.Method.invoke(Method.java:521) ERROR/AndroidRuntime(691): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) ERROR/AndroidRuntime(691): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) Does the code's flow look OK? basically each Tab has its own activity and each tab has its own layout. It appears that something is wrong in the TabHost - but I am unable to pinpoint it. Any suggestions/Qs you hav e will be very helpful.

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  • Hello, TabWidget each tab refer to new xml

    - by Clozecall
    Hey everyone I'm using Google's exmaple of Hello, TabWidget but altered it to look like this: main.xml: <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TabWidget android:id="@android:id/tabs" android:layout_width="fill_parent" android:layout_height="wrap_content" /> <FrameLayout android:id="@android:id/tabcontent" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:text="@+layout/text" android:layout_width="fill_parent" android:layout_height="fill_parent" /> <TextView android:id="@+id/textview2" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="this is another tab" /> <TextView android:id="@+id/textview3" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="this is a third tab" /> </FrameLayout> </LinearLayout> java file: public class HelloTabWidget extends TabActivity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TabHost mTabHost = getTabHost(); mTabHost.addTab(mTabHost.newTabSpec("tab_test1").setIndicator("TAB 1").setContent(R.layout.text)); mTabHost.addTab(mTabHost.newTabSpec("tab_test2").setIndicator("TAB 2").setContent(R.id.textview2)); mTabHost.addTab(mTabHost.newTabSpec("tab_test3").setIndicator("TAB 3").setContent(R.id.textview3)); mTabHost.setCurrentTab(0); } } and here is the text.xml in res/layout: <LinearLayout android:id="@+id/LinearLayout01" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" > <TextView android:layout_height="wrap_content" android:layout_width="fill_parent" android:text="This is Tab 1" /> What I'm basically trying to do is have each tab refer to its own xml file rather than all in main.xml, but the text in the first tab doesn't show up.

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  • WebView inside Tab hiding the tabWidgets

    - by brockoli
    I'm having trouble with a WebView always filling the full screen and thus covering my tabs. Here is my code for the tabhost.. public class tabNZBMobile extends TabActivity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); Resources res = getResources(); // Resource object to get Drawables TabHost tabHost = getTabHost(); // The activity TabHost TabHost.TabSpec spec; // Reusable TabSpec for each tab Intent intent; // Reusable Intent for each tab // Create an Intent to launch an Activity for the tab (to be reused) intent = new Intent().setClass(this, NewzbinMobile.class); // Initialize a TabSpec for each tab and add it to the TabHost spec = tabHost.newTabSpec("search").setIndicator("Search", res.getDrawable(R.drawable.ic_tab_search)) .setContent(intent); tabHost.addTab(spec); // Do the same for the other tabs intent = new Intent().setClass(this, sabnzbWeb.class); spec = tabHost.newTabSpec("sabnzbweb").setIndicator("SabNZBd", res.getDrawable(R.drawable.ic_tab_sabnzbweb)) .setContent(intent); tabHost.addTab(spec); tabHost.setCurrentTabByTag("search"); }} My first tab (NewzbinMobile.class) displays correctly, it's just a relativelayout. But my second tab is an activity showing a webview and it is showing, but using the whole screen, covering my tabs. Here is the code for my second tab. public class sabnzbWeb extends Activity { WebView mWebView; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); String sabNZBurl = new String("http://test.server.org:8080/m"); mWebView = new WebView(this); mWebView.getSettings().setJavaScriptEnabled(true); setContentView(mWebView); mWebView.loadUrl(sabNZBurl); }}

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  • Does pressing Back always cause Activity to finish()?

    - by stormin986
    I've heard that pressing the back button will essentially cause the current Activity to finish(). Is this always the case? Seems like it would be with the way it pops the Activity off the stack. The one situation I'm not so sure about is when the root Activity in a Task has back pressed. I'm currently experiencing a very weird effect, described as follows: On loading my application, the first Activity is for initialization, and once it finishes, it calls my main Activity (a TabActivity). This first init activity has android:noHistory="true" set in the Manifest so pressing Back from my main Activity won't go back to that. It goes to the Launcher. When I click on my App in the Launcher a second time, the initialization activity loads again, and loads the main Activity when done. Almost immediately after, it loads a second instance of my main Activity. But ONLY after the Application has already been run once, and was exited by pressing BACK from the main Activity. It does it every subsequent time until I force quit the app or load a new version from the IDE. Based on this, I am suspecting some kind of Activity instance is lying around and being reused, since it only happens on the second+ time I run the application (and exit with BACK -- using HOME just returns to the last state of the app, no big deal). Anyone have any thoughts??

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  • Why do I get an error while trying to set the content of a tabspec in android?

    - by rushinge
    I have an android activity in which I'm using tabs. public class UnitActivity extends TabActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.unit_view); TabHost tabHost = getTabHost(); TabSpec spec; spec = tabHost.newTabSpec("controls"); spec.setIndicator("Control"); spec.setContent(R.layout.unit_control); tabHost.addTab(spec); spec = tabHost.newTabSpec("data"); spec.setIndicator("Data"); spec.setContent(R.layout.unit_data); tabHost.addTab(spec); } } However when I run the program it crashes with the error: "Could not create tab content because could not find view with id 2130903042". I don't understand what the problem is because R.layout.unit_data refers to a layout file in my resource directory (res/layout/unit_data.xml) as far as I can tell unit_data.xml is well formed and I've even referenced it successfully in another activity class UnitData extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.unit_data); Toast.makeText(this, "Hi from UnitData.onCreate", 5); } } which does not give an error and renders the layout just fine. What's going on? Why can't I reference this layout when creating a tab?

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  • how to set the output image use com.android.camera.action.CROP

    - by adi.zean
    I have code to crop an image, like this : public void doCrop(){ Intent intent = new Intent("com.android.camera.action.CROP"); intent.setType("image/"); List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent,0); int size = list.size(); if (size == 0 ){ Toast.makeText(this, "Cant find crop app").show(); return; } else{ intent.setData(selectImageUri); intent.putExtra("outputX", 300); intent.putExtra("outputY", 300); intent.putExtra("aspectX", 1); intent.putExtra("aspectY", 1); intent.putExtra("scale", true); intent.putExtra("return-data", true); if (size == 1) { Intent i = new Intent(intent); ResolveInfo res = list.get(0); i.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name)); startActivityForResult(i, CROP_RESULT); } } } public void onActivityResult (int requestCode, int resultCode, Intent dara){ if (resultCode == RESULT_OK){ if (requestCode == CROP_RESULT){ Bundle extras = data.getExtras(); if (extras != null){ bmp = extras.getParcelable("data"); } File f = new File(selectImageUri.getPath()); if (f.exists()) f.delete(); Intent inten3 = new Intent(this, tabActivity.class); startActivity(inten3); } } } from what i have read, the code intent.putExtra("outputX", 300); intent.putExtra("outputY", 300); is use to set the resolution of crop result, but why i can't get the result image resolution higer than 300x300? when i set the intent.putExtra("outputX", 800); intent.putExtra("outputY", 800); the crop function has no result or crash, any idea for this situation? the log cat say "! ! ! FAILED BINDER TRANSACTION ! ! !

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  • android: ending activity from tab

    - by Jin
    I have 3 classes, let's call them 1, 2, and 3. Class 1 extends TabActivity and organizes the whole tab thing, Class 2 and 3 are just two separate tabs each with some lines of text. I call Class 1 from another activity using startActivityForResult. I then added an optionsMenu in class 2, and when user clicks the optionMenu, the following code is carried out: @Override public boolean onMenuItemSelected(int featureId, MenuItem item) { Intent i = new Intent(); switch(item.getItemId()) { case Result.NEXT_ID: i.putExtra(Result.PAGE_REQUEST, NEXT); setResult(RESULT_OK, i); finish(); break; case Result.PREV_ID: i.putExtra(Result.PAGE_REQUEST, PREV); setResult(RESULT_OK, i); finish(); } return super.onMenuItemSelected(featureId, item); } In my parent class (the class that called 1 to begin with), in its onActivityResult function, I want to get the data from the extras. However, the intent is always null, and I can't figure out why. When I call finish() on class 2, is it calling some other function in class 1? Do I have to transfer the intent data somehow?

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  • Android - Switching Activities with a Tab Layout

    - by Bill Osuch
    This post is based on the Tab Layout  tutorial on the Android developers site, with some modifications. I wanted to get rid of the icons (they take up too much screen real estate), and modify the fonts on the tabs. First, create a new Android project, with an Activity called TabWidget. Then, create two additional Activities called TabOne and TabTwo. Throw a simple TextView on each one with a message identifying the tab, like this: public class TabTwo extends Activity {  @Override  public void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   TextView tv = new TextView(this);   tv.setText("This is tab 2");   setContentView(tv);  } } And don't forget to add them to your AndroidManifest.xml file: <activity android:name=".TabOne"></activity> <activity android:name=".TabTwo"></activity> Now we'll create the tab layout - open the res/layout/main.xml file and insert the following: <?xml version="1.0" encoding="utf-8"?> <TabHost xmlns:android="http://schemas.android.com/apk/res/android"  android:id="@android:id/tabhost"  android:layout_width="fill_parent"  android:layout_height="fill_parent">  <LinearLayout   android:orientation="vertical"   android:layout_width="fill_parent"   android:layout_height="fill_parent">   <TabWidget    android:id="@android:id/tabs"    android:layout_width="fill_parent"    android:layout_height="wrap_content" />   <FrameLayout    android:id="@android:id/tabcontent"             android:layout_width="fill_parent"    android:layout_height="fill_parent" />  </LinearLayout> </TabHost> Finally, we'll create the code needed to populate the TabHost. Make sure your TabWidget class extends TabActivity rather than Activity, and add code to grab the TabHost and create an Intent to launch a new Activity:    TabHost tabHost = getTabHost();  // The activity TabHost    TabHost.TabSpec spec;  // Reusable TabSpec for each tab    Intent intent;  // Reusable Intent for each tab       // Create an Intent to launch an Activity for the tab (to be reused)    intent = new Intent().setClass(this, TabOne.class); Add the first tab to the layout:    // Initialize a TabSpec for each tab and add it to the TabHost    spec = tabHost.newTabSpec("tabOne");      spec.setContent(intent);     spec.setIndicator("Tab One");     tabHost.addTab(spec); It's pretty tall as-is, so we'll shorten it:   // Squish the tab a little bit horizontally   tabHost.getTabWidget().getChildAt(0).getLayoutParams().height = 40; But the text is a little small, so let's increase the font size:   // Bump the text size up   LinearLayout ll = (LinearLayout) tabHost.getChildAt(0);   android.widget.TabWidget tw = (android.widget.TabWidget) ll.getChildAt(0);   RelativeLayout rllf = (RelativeLayout) tw.getChildAt(0);   TextView lf = (TextView) rllf.getChildAt(1);   lf.setTextSize(20); Do the same for the second tab, and you wind up with this: @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);                 TabHost tabHost = getTabHost();  // The activity TabHost         TabHost.TabSpec spec;  // Reusable TabSpec for each tab         Intent intent;  // Reusable Intent for each tab            // Create an Intent to launch an Activity for the tab (to be reused)         intent = new Intent().setClass(this, TabOne.class);         // Initialize a TabSpec for each tab and add it to the TabHost         spec = tabHost.newTabSpec("tabOne");           spec.setContent(intent);          spec.setIndicator("Tab One");          tabHost.addTab(spec);         // Squish the tab a little bit horizontally         tabHost.getTabWidget().getChildAt(0).getLayoutParams().height = 40;         // Bump the text size up         LinearLayout ll = (LinearLayout) tabHost.getChildAt(0);         android.widget.TabWidget tw = (android.widget.TabWidget) ll.getChildAt(0);         RelativeLayout rllf = (RelativeLayout) tw.getChildAt(0);         TextView lf = (TextView) rllf.getChildAt(1);         lf.setTextSize(20);            // Do the same for the other tabs         intent = new Intent().setClass(this, TabTwo.class);         spec = tabHost.newTabSpec("tabTwo");          spec.setContent(intent);          spec.setIndicator("Tab Two");         tabHost.addTab(spec);         tabHost.getTabWidget().getChildAt(1).getLayoutParams().height = 40;         RelativeLayout rlrf = (RelativeLayout) tw.getChildAt(1);         TextView rf = (TextView) rlrf.getChildAt(1);         rf.setTextSize(20);            tabHost.setCurrentTab(0);     } Save and fire up the emulator, and you should be able to switch back and forth between your tabs!

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  • Android : launching diff activities under TabWidget

    - by rahul
    hiii I am trying to launch activities under each tab. I hav tried with following code public class Tab_Proj1 extends TabActivity { TabHost mTabHost ; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final Context context = getApplicationContext(); //mTabHost = (TabHost) this.findViewById(R.id.); mTabHost = getTabHost(); mTabHost.setup(); mTabHost.addTab(mTabHost.newTabSpec("tab_test4") .setIndicator("Contacts") .setContent(new Intent().setClass(context, Tab1Activity.class))); Tab1Activity is extending ListActivity. I m getting exception as:::::: 01-25 11:57:07.352: ERROR/AndroidRuntime(952): Uncaught handler: thread main exiting due to uncaught exception 01-25 11:57:07.382: ERROR/AndroidRuntime(952): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.app.Tab_Proj1/com.android.app.Tab_Proj1.Tab_Proj1}: java.lang.RuntimeException: Could not create tab content because could not find view with id 2131034148 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2268) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2284) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.app.ActivityThread.access$1800(ActivityThread.java:112) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.os.Handler.dispatchMessage(Handler.java:99) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.os.Looper.loop(Looper.java:123) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.app.ActivityThread.main(ActivityThread.java:3948) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at java.lang.reflect.Method.invokeNative(Native Method) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at java.lang.reflect.Method.invoke(Method.java:521) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at dalvik.system.NativeStart.main(Native Method) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): Caused by: java.lang.RuntimeException: Could not create tab content because could not find view with id 2131034148 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.widget.TabHost$ViewIdContentStrategy.(TabHost.java:539) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.widget.TabHost$ViewIdContentStrategy.(TabHost.java:530) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.widget.TabHost$TabSpec.setContent(TabHost.java:417) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at com.android.app.Tab_Proj1.Tab_Proj1.onCreate(Tab_Proj1.java:52) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) 01-25 11:57:07.382: ERROR/AndroidRuntime(952): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2231) ====================================================================== Am I going in correct way? If not please help me with some ideas..... thanks

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  • Composite Views and View Controllers

    - by BillyK
    Hi, I'm somewhat new to Android and am in the process of designing an application with a couple fairly complex views. One of the views is intended to involve a complex view displaying information associated with model objects and segregated into several different views; the navigation of which is meant to be achieved using sliding effects (i.e. sliding one's finger across the screen to traverse from one screen to the next, etc). The view itself will be used to host multiple sets of views for varying types of model objects, but with a general structure that is reused between them all. As a rough example, the view might come up to display information about a person (the model object), displaying several details views: a view for general information, a view displaying a list of hobbies, and a view displaying a list of other individuals associated with their social network. The same general view, when given a model object representing a particular car would give several different views: A general view with details, A view containing photo images for that vehicle, a view representing locations which it could be purchased from, and a view providing a list of related cars. (NOTE: This is not the real data involved, but is representative of the general intent for the view). The subviews will NOT cover the entire screen real-estate and other features within the view should be both visible and able to be interacted with by the user. The idea here is that there is a general view structure that is reusable and which will manage a set of subviews dynamically generated based upon the type of model object handed to the view. I'm trying to determine the appropriate way to leverage the Android framework in order to best achieve this without violating the integrity of the framework. Basically, I'm trying to determine how to componentize this larger view into reusable units (i.e. general view, model-specific sub-view controllers, and individual detail views). To be more specific, I'm trying to determine if this view is best designed as a composite of several custom View classes or a composite of several Activity classes. I've seen several examples of custom composite views, but they typically are used to compose simple views without complex controllers and without attention to the general Activity lifecycle (i.e. storing and retrieving data related to the model objects, as appropriate). On the other hand, the only real example I've seen regarding a view comprised of a composite of Activities is the TabActivity itself, and that isn't customizable in the fashion that would be necessary for this. Does anyone have any suggestions as to the appropriate way to structure my view to achieve the application framework I'm looking for? Views? Activities? Something else? Any guidance would be appreciated. Thanks in advance.

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  • Changing tabs in android

    - by Pavel
    Hi guys. Can someone please tell me how to change tab by clicking on element INSIDE the tab? I already tried it with global data. The code looks like this: public class Tabs extends TabActivity { int tabNumber = 0; private TabHost tabHost; int returnedTabNumber = 0; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Resources res = getResources(); // Resource object to get Drawables tabHost = getTabHost(); // The activity TabHost TabHost.TabSpec spec; // Resusable TabSpec for each tab Intent intent; // Reusable Intent for each tab // Create an Intent to launch an Activity for the tab (to be reused) intent = new Intent().setClass(this, Tribocracy.class); // Initialize a TabSpec for each tab and add it to the TabHost spec = tabHost.newTabSpec("map").setIndicator("Map", res.getDrawable(R.drawable.ic_tab_artists)) .setContent(intent); tabHost.addTab(spec); // Do the same for the other tabs intent = new Intent().setClass(this, Areas.class); spec = tabHost.newTabSpec("areas").setIndicator("Areas", res.getDrawable(R.drawable.ic_tab_albums)) .setContent(intent); tabHost.addTab(spec); // Do the same for the other tabs intent = new Intent().setClass(this, Settings.class); spec = tabHost.newTabSpec("settings").setIndicator("Settings", res.getDrawable(R.drawable.ic_tab_albums)) .setContent(intent); tabHost.addTab(spec); tabHost.setCurrentTab(tabNumber); } protected void onResume() { super.onResume(); GlobalData globalData = ((GlobalData)getApplicationContext()); returnedTabNumber = globalData.getTabNumber(); tabHost.setCurrentTab(returnedTabNumber); } } The global adapter looks like this: public class GlobalData extends Application { //---------------------------------------------------- private int Point1; //define the vars here private int Point2; //define the vars here private int Point3; //define the vars here private int Point4; //define the vars here private int Point5; //define the vars here private int Point6; //define the vars here private int tabNumber; public int getTabNumber() //getter of the value { return tabNumber; } public int setTabNumber(int number) //setter of the value { tabNumber = number; return tabNumber; } } Now when I'm trying to change tab in my ListActivity tab by clicking on one of the items it doesn't do anything and stays on the ListActivity tab. Perhaps I shouldn't use onResume() here. Basically I want to go to first tab when I click on one of the items in the list. Please help!

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  • Android - binding to service

    - by tommy
    Hi: I can't seem to get an activity to bind to a service in the same package. The activity looks like this: public class myApp extends TabActivity { static private String TAG = "myApp"; private myService mService = null; private ServiceConnection mServiceConn = new ServiceConnection(){ public void onServiceConnected(ComponentName name, IBinder service) { Log.v(TAG, "Service: " + name + " connected"); mService = ((myService.myBinder)service).getService(); } public void onServiceDisconnected(ComponentName name) { Log.v(TAG, "Service: " + name + " disconnected"); } }; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); doBind(); Log.i(TAG, "Started (UI Thread)"); // set content setContentView(R.layout.main); Resources res = getResources(); // Resource object to get Drawables TabHost tabHost = getTabHost(); // The activity TabHost ... add some tabs here.... tabHost.setCurrentTab(0); } private void doBind(){ Intent i = new Intent(this,myService.class); if( bindService(i, mServiceConn, 0 )){ Log.i(TAG, "Service bound"); } else { Log.e(TAG, "Service not bound"); } } } Then the service: public class myService extends Service { private String TAG = "myService"; private boolean mRunning = false; @Override public int onStartCommand(Intent intent, int flags, int startid) { Log.i(TAG,"Service start"); mRunning = true; Log.d(TAG,"Finished onStartCommand"); return START_STICKY; } /* * Called on service stop */ @Override public void onDestroy(){ Log.i(TAG,"onDestroy"); mRunning = false; super.onDestroy(); } @Override public IBinder onBind(Intent intent) { return mBinder; } boolean isRunning() { return mRunning; } /* * class for binding */ private final IBinder mBinder = new myBinder(); public class myBinder extends Binder { myService getService() { return myService.this; } } } bindService returns true, but onServiceConnection is never called (mService is always null, so I can't do something like mService.isRunning() ) The manifest entry for the service is just: <service android:name=".myService"></service> I was copying the code direct from the Android developers site, but I must have missed something.

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  • Using Bundle and Intent with TabHost

    - by apesa
    I am using TabHost with 3 tabs. I need to pass the params selected from one screen using Bundle and / or Intent to the next and then set the correct tab in TabHost and pass those params to the correct tab. I hope that makes sense. I have a config screen that has several radio buttons that are grouped and 1 checkbox and a button. in my onClick() I have the following code. public class Distribute extends Activity implements OnClickListener { DistributionMap gixnav; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TextView textview = new TextView(this); textview.setText("Distribution"); setContentView(R.drawable.configup); Button button = (Button)findViewById(R.id.btn_configup1); button.setOnClickListener(this); } public void onClick(View v) { Intent intent; Bundle extras = new Bundle(); intent = new Intent().setClass(getApplicationContext(), Clevel.class); intent.putExtras(extras); startActivity(intent); } } I need to pass the selection params (which radio button is selected and is the checkbox clicked to Clevel. In Clevel I have to parse the bundle and operate on those params. Basiclaly I will be pulling data froma DB and using that data to call google maps ItemizedOverlay. onClick calls Clevel.class using Intent. This works and I understand how Intent works. What I need to understand is how to grab or reference the selected radio button and whatever else may be clicked or checked and pass it through TabHost to the correct Tab. This is what I have in Clevel for TabHost. From TabHost the onCLick will need to pass everything to Distribute.class public class Clevel extends TabActivity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.gixout1); Resources res = getResources(); TabHost tabHost = getTabHost(); TabHost.TabSpec spec; Intent intent; String mData; Bundle extras = getIntent().getExtras(); if (extras != null) { mData = extras.getString("key"); } intent = new Intent().setClass(this, ClevelMain.class); spec = tabHost.newTabSpec("Main").setIndicator("C-Level", res.getDrawable(R.drawable.gixmain)) .setContent(intent); tabHost.addTab(spec); intent = new Intent().setClass(this, Distribute.class); spec = tabHost.newTabSpec("Config").setIndicator("Distribute", res.getDrawable(R.drawable.gixconfig)) .setContent(intent); tabHost.addTab(spec); intent = new Intent().setClass(this, DistributionMap.class); spec = tabHost.newTabSpec("Nav").setIndicator("Map", res.getDrawable(R.drawable.gixnav)) .setContent(intent); tabHost.addTab(spec); tabHost.setCurrentTab(3); tabHost.getOnFocusChangeListener(); } I am really looking for some pointers on how to pass and use params in Bundle and whether in should use Bundle and Intent or can I just use Intent? Thanks in advance, Pat

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  • How to set icon to title bar for each Activity in Tablelayout in android

    - by Venu Gopal
    In my tablayout example, i have created 3 tabs, as usually i set 3 activities for each tab. I can set image to title bar of activity, which adds the intent to each tab. Due to this, the image in the title bar is visible in all 3 tabs. My requirement is to set a different image to title bar for each activity. I followed this to set image to title bar. But when i am going to do the same thing to each activity, getting android.util.AndroidRuntimeException: You cannot combine custom titles with other title features this error and application is terminated. manifest.xml <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.aptitsolution.tablayout" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name" android:theme="@style/MyTheme"> <activity android:name=".TabLayoutDemo" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="AlbumsActivity"></activity> <activity android:name="ArtistsActivity"></activity> <activity android:name="SongsActivity"></activity> TabLayoutDemo.java public class TabLayoutDemo extends TabActivity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); setContentView(R.layout.main); getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.my_title); Resources res = getResources(); // Resource object to get Drawables TabHost tabHost = getTabHost(); // The activity TabHost TabHost.TabSpec spec; // Resusable TabSpec for each tab Intent intent; // Reusable Intent for each tab // Create an Intent to launch an Activity for the tab (to be reused) intent = new Intent().setClass(this, ArtistsActivity.class); // Initialize a TabSpec for each tab and add it to the TabHost spec = tabHost.newTabSpec("artists").setIndicator("Artists", res.getDrawable(R.drawable.ic_tab_artists)) .setContent(intent); tabHost.addTab(spec); .... .... ArtistsActivity.java public class ArtistsActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);//here i am getting the error setContentView(R.layout.artists); setFeatureDrawableResource(Window.FEATURE_CUSTOM_TITLE, R.layout.my_title); } } my_title.xml <?xml version="1.0" encoding="utf-8"?><RelativeLayout android:id="@+id/header" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="wrap_content" android:layout_width="fill_parent"> <ImageView android:id="@+id/titleImage" android:src="@drawable/nowplaying" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/titleText" android:layout_toRightOf="id/titleImage"android:layout_width="wrap_content" android:text="New Title" android:layout_height="wrap_content"/> thanks venu

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  • Why do I get a null pointer exception from TabWidget?

    - by rushinge
    I'm writing an android program in which I have an activity that uses tabs. The Activity public class UnitActivity extends TabActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TabHost tabHost = getTabHost(); TabSpec spec; Resources res = getResources(); LayoutInflater.from(this).inflate(R.layout.unit_view, tabHost.getTabContentView(), true); spec = tabHost.newTabSpec("controls"); spec.setIndicator("Control", res.getDrawable(R.drawable.ic_tab_equalizer)); spec.setContent(R.id.txtview); tabHost.addTab(spec); } } The XML referenced by R.layout.unit_view <?xml version="1.0" encoding="utf-8"?> <TabHost xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/tabhost" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="5dp"> <TabWidget android:id="@android:id/tabs" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <FrameLayout android:id="@android:id/tabcontent" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="5dp"> <TextView android:id="@+id/txtview" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="bottom" android:text="nullpointer this!" /> </FrameLayout> </LinearLayout> </TabHost> As far as I can see I'm doing the same thing I see in the tabs1 api sample from the android sdk. I've tried "getLayoutInflator()" instead of "LayoutInflator.from(this)" with the same result. If I replace the LayoutInflater line with "setContentView(R.layout.unit_view)" my program doesn't crash with a null pointer exception but my content is completely blank and empty. I get the tab and that's it. I've checked to make sure R.layout.unit_view and tabHost are not null when it runs the LayoutInflater line and they seem to be fine. They're defenitely not null. I've also checked to make sure LayoutInflater.from(this) returns a valid layout inflater object and it does. The logcat indicating the error says E/AndroidRuntime( 541): java.lang.NullPointerException E/AndroidRuntime( 541): at android.widget.TabWidget.dispatchDraw(TabWidget.java:206) E/AndroidRuntime( 541): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) E/AndroidRuntime( 541): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) E/AndroidRuntime( 541): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) E/AndroidRuntime( 541): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) E/AndroidRuntime( 541): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) E/AndroidRuntime( 541): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) E/AndroidRuntime( 541): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) E/AndroidRuntime( 541): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) E/AndroidRuntime( 541): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) E/AndroidRuntime( 541): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) E/AndroidRuntime( 541): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) E/AndroidRuntime( 541): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) E/AndroidRuntime( 541): at android.view.View.draw(View.java:6538) E/AndroidRuntime( 541): at android.widget.FrameLayout.draw(FrameLayout.java:352) E/AndroidRuntime( 541): at android.view.ViewGroup.drawChild(ViewGroup.java:1531) E/AndroidRuntime( 541): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) E/AndroidRuntime( 541): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) E/AndroidRuntime( 541): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) E/AndroidRuntime( 541): at android.view.View.draw(View.java:6538) E/AndroidRuntime( 541): at android.widget.FrameLayout.draw(FrameLayout.java:352) E/AndroidRuntime( 541): at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1830) E/AndroidRuntime( 541): at android.view.ViewRoot.draw(ViewRoot.java:1349) E/AndroidRuntime( 541): at android.view.ViewRoot.performTraversals(ViewRoot.java:1114) E/AndroidRuntime( 541): at android.view.ViewRoot.handleMessage(ViewRoot.java:1633) E/AndroidRuntime( 541): at android.os.Handler.dispatchMessage(Handler.java:99) E/AndroidRuntime( 541): at android.os.Looper.loop(Looper.java:123) E/AndroidRuntime( 541): at android.app.ActivityThread.main(ActivityThread.java:4363) E/AndroidRuntime( 541): at java.lang.reflect.Method.invokeNative(Native Method) E/AndroidRuntime( 541): at java.lang.reflect.Method.invoke(Method.java:521) E/AndroidRuntime( 541): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) E/AndroidRuntime( 541): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) E/AndroidRuntime( 541): at dalvik.system.NativeStart.main(Native Method) I/Process ( 61): Sending signal. PID: 541 SIG: 3 I/dalvikvm( 541): threadid=7: reacting to signal 3 I/dalvikvm( 541): Wrote stack trace to '/data/anr/traces.txt' Anybody have any idea how I can get this content into a tab without crashing my application? My actual program is more complex and has more than one tab but I simplified it down to this in an attempt to find out why it's crashing but it still crashes and I don't know why. If I don't use LayoutInflator my program doesn't crash but I don't get any content either, just tabs.

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  • Database with 5 Tables with Insert and Select

    - by kirbby
    hi guys, my problem is that i have 5 tables and need inserts and selects. what i did is for every table a class and there i wrote the SQL Statements like this public class Contact private static String IDCont = "id_contact"; private static String NameCont = "name_contact"; private static String StreetCont = "street_contact"; private static String Street2Cont = "street2_contact"; private static String Street3Cont = "street3_contact"; private static String ZipCont = "zip_contact"; private static String CityCont = "city_contact"; private static String CountryCont = "country_contact"; private static String Iso2Cont = "iso2_contact"; private static String PhoneCont = "phone_contact"; private static String Phone2Cont = "phone2_contact"; private static String FaxCont = "fax_contact"; private static String MailCont = "mail_contact"; private static String Mail2Cont = "mail2_contact"; private static String InternetCont = "internet_contact"; private static String DrivemapCont = "drivemap_contact"; private static String PictureCont = "picture_contact"; private static String LatitudeCont = "latitude_contact"; private static String LongitudeCont = "longitude_contact"; public static final String TABLE_NAME = "contact"; public static final String SQL_CREATE = "CREATE TABLE IF NOT EXISTS " + TABLE_NAME + "(" + IDCont + "INTEGER not NULL," + NameCont + " TEXT not NULL," + StreetCont + " TEXT," + Street2Cont + " TEXT," + Street3Cont + " TEXT," + ZipCont + " TEXT," + CityCont + " TEXT," + CountryCont + " TEXT," + Iso2Cont + " TEXT," + PhoneCont + " TEXT," + Phone2Cont + " TEXT," + FaxCont + " TEXT," + MailCont + " TEXT," + Mail2Cont + " TEXT," + InternetCont + " TEXT," + //website of the contact DrivemapCont + " TEXT," + //a link to a drivemap to the contact PictureCont + " TEXT," + //a photo of the contact building (contact is not a person) LatitudeCont + " TEXT," + LongitudeCont + " TEXT," + "primary key(id_contact)" + "foreign key(iso2)"; and my insert looks like this public boolean SQL_INSERT_CONTACT(int IDContIns, String NameContIns, String StreetContIns, String Street2ContIns, String Street3ContIns, String ZipContIns, String CityContIns, String CountryContIns, String Iso2ContIns, String PhoneContIns, String Phone2ContIns, String FaxContIns, String MailContIns, String Mail2ContIns, String InternetContIns, String DrivemapContIns, String PictureContIns, String LatitudeContIns, String LongitudeContIns) { try{ db.execSQL("INSERT INTO " + "contact" + "(" + IDCont + ", " + NameCont + ", " + StreetCont + ", " + Street2Cont + ", " + Street3Cont + ", " + ZipCont + ", " + CityCont + ", " + CountryCont + ", " + Iso2Cont + ", " + PhoneCont + ", " + Phone2Cont + ", " + FaxCont + ", " + MailCont + ", " + Mail2Cont + ", " + InternetCont + ", " + DrivemapCont + ", " + PictureCont + ", " + LatitudeCont + ", " + LongitudeCont + ") " + "VALUES (" + IDContIns + ", " + NameContIns +", " + StreetContIns + ", " + Street2ContIns + ", " + Street3ContIns + ", " + ZipContIns + ", " + CityContIns + ", " + CountryContIns + ", " + Iso2ContIns + ", " + PhoneContIns + ", " + Phone2ContIns + ", " + FaxContIns + ", " + MailContIns + ", " + Mail2ContIns + ", " + InternetContIns + ", " + DrivemapContIns + ", " + PictureContIns + ", " + LatitudeContIns + ", " + LongitudeContIns +")"); return true; } catch (SQLException e) { return false; } } i have a DBAdapter class there i created the database public class DBAdapter { public static final String DB_NAME = "mol.db"; private static final int DB_VERSION = 1; private static final String TAG = "DBAdapter"; //to log private final Context context; private SQLiteDatabase db; public DBAdapter(Context context) { this.context = context; OpenHelper openHelper = new OpenHelper(this.context); this.db = openHelper.getWritableDatabase(); } public static class OpenHelper extends SQLiteOpenHelper { public OpenHelper(Context context) { super(context, DB_NAME, null, DB_VERSION); } @Override public void onCreate(SQLiteDatabase db) { // TODO Auto-generated method stub db.execSQL(Contact.SQL_CREATE); db.execSQL(Country.SQL_CREATE); db.execSQL(Picture.SQL_CREATE); db.execSQL(Product.SQL_CREATE); db.execSQL(Project.SQL_CREATE); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { // TODO Auto-generated method stub Log.w(TAG, "Upgrading database from version " + oldVersion + " to " + newVersion + ", which will destroy all old data"); db.execSQL(Contact.SQL_DROP); db.execSQL(Country.SQL_DROP); db.execSQL(Picture.SQL_DROP); db.execSQL(Product.SQL_DROP); db.execSQL(Project.SQL_DROP); onCreate(db); } i found so many different things and tried them but i didn't get anything to work... i need to know how can i access the database in my activity and how i can get the insert to work and is there sth wrong in my code? thanks for your help thats how i tried to get it into my activity public class MainTabActivity extends TabActivity { private Context context; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.maintabactivity); TabHost mTabHost = getTabHost(); Intent intent1 = new Intent().setClass(this,MapOfLight.class); //Intent intent2 = new Intent().setClass(this,Test.class); //Testactivity //Intent intent2 = new Intent().setClass(this,DetailView.class); //DetailView Intent intent2 = new Intent().setClass(this,ObjectList.class); //ObjectList //Intent intent2 = new Intent().setClass(this,Gallery.class); //Gallery Intent intent3 = new Intent().setClass(this,ContactDetail.class); mTabHost.addTab(mTabHost.newTabSpec("tab_mol").setIndicator(this.getText(R.string.mol), getResources().getDrawable(R.drawable.ic_tab_mol)).setContent(intent1)); mTabHost.addTab(mTabHost.newTabSpec("tab_highlights").setIndicator(this.getText(R.string.highlights),getResources().getDrawable(R.drawable.ic_tab_highlights)).setContent(intent2)); mTabHost.addTab(mTabHost.newTabSpec("tab_contacts").setIndicator(this.getText(R.string.contact),getResources().getDrawable(R.drawable.ic_tab_contact)).setContent(intent3)); mTabHost.setCurrentTab(1); SQLiteDatabase db; DBAdapter dh = null; OpenHelper openHelper = new OpenHelper(this.context); dh = new DBAdapter(this); db = openHelper.getWritableDatabase(); dh.SQL_INSERT_COUNTRY("AT", "Austria", "AUT"); } } i tried it with my country table because it has only 3 columns public class Country { private static String Iso2Count = "iso2_country"; private static String NameCount = "name_country"; private static String FlagCount = "flag_image_url_country"; public static final String TABLE_NAME = "country"; public static final String SQL_CREATE = "CREATE TABLE IF NOT EXISTS " + TABLE_NAME + "(" + Iso2Count + " TEXT not NULL," + NameCount + " TEXT not NULL," + FlagCount + " TEXT not NULL," + "primary key(iso2_country)"; public boolean SQL_INSERT_COUNTRY(String Iso2CountIns, String NameCountIns, String FlagCountIns) { try{ db.execSQL("INSERT INTO " + "country" + "(" + Iso2Count + ", " + NameCount + ", " + FlagCount + ") " + "VALUES ( " + Iso2CountIns + ", " + NameCountIns +", " + FlagCountIns + " )"); return true; } catch (SQLException e) { return false; } } another question is it better to put the insert and select from each table into a separate class, so i have 1 class for each table or put them all into the DBAdapter class?

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