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  • java.lang.NoClassDefFoundError at Runtime Android Widget

    - by pxrb66
    I have a problem during runtime of my Android widget with Android 2.3.3 and older. When i install my widget on the screen, this error is printed : 11-03 10:26:31.127: E/AndroidRuntime(404): FATAL EXCEPTION: main 11-03 10:26:31.127: E/AndroidRuntime(404): java.lang.NoClassDefFoundError: com.app.myapp.StackWidgetService 11-03 10:26:31.127: E/AndroidRuntime(404): at com.app.myapp.StackWidgetProvider.onUpdate(StackWidgetProvider.java:229) 11-03 10:26:31.127: E/AndroidRuntime(404): at android.appwidget.AppWidgetProvider.onReceive(AppWidgetProvider.java:61) 11-03 10:26:31.127: E/AndroidRuntime(404): at com.app.mobideals.StackWidgetProvider.onReceive(StackWidgetProvider.java:216) 11-03 10:26:31.127: E/AndroidRuntime(404): at android.app.ActivityThread.handleReceiver(ActivityThread.java:1794) 11-03 10:26:31.127: E/AndroidRuntime(404): at android.app.ActivityThread.access$2400(ActivityThread.java:117) 11-03 10:26:31.127: E/AndroidRuntime(404): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:981) 11-03 10:26:31.127: E/AndroidRuntime(404): at android.os.Handler.dispatchMessage(Handler.java:99) 11-03 10:26:31.127: E/AndroidRuntime(404): at android.os.Looper.loop(Looper.java:123) 11-03 10:26:31.127: E/AndroidRuntime(404): at android.app.ActivityThread.main(ActivityThread.java:3683) 11-03 10:26:31.127: E/AndroidRuntime(404): at java.lang.reflect.Method.invokeNative(Native Method) 11-03 10:26:31.127: E/AndroidRuntime(404): at java.lang.reflect.Method.invoke(Method.java:507) 11-03 10:26:31.127: E/AndroidRuntime(404): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 11-03 10:26:31.127: E/AndroidRuntime(404): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 11-03 10:26:31.127: E/AndroidRuntime(404): at dalvik.system.NativeStart.main(Native Method) The problem is due to the fact that the compilator don't arrive to perform the link to the StackWidgetService class at this line in onUpdate method of StackWidgetProvider class : public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { // update each of the widgets with the remote adapter for (int i = 0; i < appWidgetIds.length; ++i) { // Here we setup the intent which points to the StackViewService which will // provide the views for this collection. Intent intent = new Intent(context, StackWidgetService.class); intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]); The widget works well with other version of Android like 3.0, 4.0 etc... Please help me :)

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  • Android - Custom Widget doesnt update

    - by david
    Hi, I'm trying to make a widget to my app, but it doesnt update. I just need to change the textview text and open an activity when a press a button, but none of them works... the code public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.newswidget); views.setTextViewText(R.id.tvNews, "prueba1"); views.setString(R.id.tvNews, "setText", "prueba3"); Intent intent = new Intent(context, DoctorChatAndroid.class); PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0); views.setOnClickPendingIntent(R.id.ibNext, pendingIntent); for (int i = 0; i < appWidgetIds.length; i++) { appWidgetManager.updateAppWidget(i, views); } the layout <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content"> <ImageButton android:id="@+id/ibNext" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@android:drawable/ic_media_ff" android:layout_alignParentRight="true"/> <ImageButton android:id="@+id/ibLast" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@android:drawable/ic_media_rew" android:layout_toLeftOf="@id/ibNext"/> <TextView android:id="@+id/tvNews" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/nwNoNewAnswer" android:layout_toLeftOf="@id/ibLast"/> </RelativeLayout> the other xml thx a lot!!!

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  • My app has some basic problems, and it stops working

    - by user2882662
    I am writing a basic application which contains two activities. Both contain a TextView showing the title and the first one contains an EditText in which the user types a message and clicks on a button on its side, the second activity is launched which shows the message the user types. It has the following problems: The title (the first TextView in both the activities) doesn't show in the middle of the line, despite of the android:gravity="center_horizontal" attribute. The EditText in the first activity does not show at all. When I click on the button, the app stops saying "Unfortunately Write n Display and stopped.", rather than launching the second activity at all. I don't have adequate knowledge about logcat, but I have followed the steps somebody had told me, that is WindowOpen Perspective Other DDMS Then run the app and select the package name from the Devices and click on log cat, select the exception(s) and export to text file. All contained in the text file is : : E/(): Device disconnected: 1 Since I am not sure of using log cat, so I am posting a screenshot to make clear what I have done. CODE OF FIRST ACTIVITY: - package com.practice.myfirstapp1; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.EditText; //import android.view.Menu; public class MainActivity extends Activity { public static final String key_name="com.practice.firstApp.key"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } private void sendMessage(View view){ Intent intent= new Intent(this, SecondActivity.class); EditText editText=(EditText) findViewById(R.id.EditText1_MainActivity); String key_value= editText.getText().toString(); intent.putExtra(key_name, key_value); startActivity(intent); } } LAYOUT OF FIRST ACTIVITY: - <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" > <TextView android:id="@+id/TextView1_MainActivity" android:layout_alignParentTop="true" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@+string/title_MainActivity" android:gravity="center_horizontal" android:textStyle="bold"/> <EditText android:id="@+id/EditText1_MainActivity" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_below="@+id/TextView1_MainActivity" android:hint="@string/EditText_MainActivity" android:textStyle="italic" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/TextView1_MainActivity" android:layout_toRightOf="@id/EditText1_MainActivity" android:text="@string/Button_MainActivity" android:onClick="sendMessage"/> </RelativeLayout> CODE OF SECOND ACTIVITY: - package com.practice.myfirstapp1; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.widget.TextView; class SecondActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_second); Intent intent= getIntent(); String intent_value= intent.getStringExtra(MainActivity.key_name); TextView textView= new TextView(this); textView= (TextView) findViewById(R.id.TextView2_SecondActivity); textView.setText(intent_value); } } LAYOUT OF SECOND ACTIVITY: - <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" tools:context=".SecondActivity"> <TextView android:layout_alignParentTop="true" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@+string/title_SecondActivity" android:gravity="center_horizontal" android:textStyle="bold"/> <TextView android:id="@+id/TextView2_SecondActivity" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </RelativeLayout> STRINGS RESOURCE FILE:- <?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">Write n Display</string> <string name="action_settings">Settings</string> <string name="title_MainActivity">WRITE</string> <string name="EditText_MainActivity">Your Message here</string> <string name="Button_MainActivity">Send</string> <string name="title_SecondActivity">DISPLAY</string> </resources> ANDROID MANIFEST FILE: - <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.practice.myfirstapp1" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" android:debuggable="true" > <activity android:name="com.practice.myfirstapp1.MainActivity" 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="com.practive.myfirstapp1.SecondActivity" android:label="@string/app_name"> </activity> </application> </manifest>

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  • PendingIntent in Widget + TaskKiller

    - by YaW
    Hi, I've developed an Application (called Instant Buttons) and the app has a widget feature. This widget uses PendingIntent for the onClick of the widget. My PendingIntent code is something like this: Intent active = new Intent(context, InstantWidget.class); active.setAction(String.valueOf(appWidgetId)); active.putExtra("blabla", blabla); //Some data PendingIntent actionPendingIntent = PendingIntent.getBroadcast(context, 0, active, 0); actionPendingIntent.cancel(); actionPendingIntent = PendingIntent.getBroadcast(context, 0, active, 0); remoteViews.setOnClickPendingIntent(R.id.button, actionPendingIntent); The onReceive gets the intent and do some stuff with the MediaPlayer class to reproduce a sound. I have reports from some users that the widgets stop working after a while and with some research i've discovered is because the Task Killers. It seems that when you kill the app in the TaskKiller, the PendingIntent is erased from memory, so when you click the widget, it doesn't know what to do. Is there any solution for this? Is my code wrong or something or it's the default behavior of the PendingIntent? Is there something I can use to avoid the TaskKiller to stop my widgets from working?? Greetings.

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  • storing data in a database using edit text and button

    - by user1841444
    Hai im trying to Insert data into database using EditText and Button i have created. Im stuck at Activity part of the Code.I unbale to proceed how to write the Onclick action part for Button and EditText part Please help me. Im new to android DBAdapter.java package com.example.database1; 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 { public static final String KEY_ROWID = "_id"; public static final String KEY_ISBN = "isbn"; public static final String KEY_TITLE = "title"; public static final String KEY_PUBLISHER = "publisher"; private static final String TAG = "DBAdapter"; private static final String DATABASE_NAME = "books"; private static final String DATABASE_TABLE = "titles"; private static final int DATABASE_VERSION = 1; private static final String DATABASE_CREATE = "create table titles (_id integer primary key autoincrement, " + "isbn text not null, title text not null, " + "publisher text not null);"; private final 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(DATABASE_CREATE); } @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 insertTitle(String isbn, String title, String publisher) { ContentValues initialValues = new ContentValues(); initialValues.put(KEY_ISBN, isbn); initialValues.put(KEY_TITLE, title); initialValues.put(KEY_PUBLISHER, publisher); return db.insert(DATABASE_TABLE, null, initialValues); } //---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_ISBN, KEY_TITLE, KEY_PUBLISHER}, 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_ISBN, KEY_TITLE, KEY_PUBLISHER }, KEY_ROWID + "=" + rowId, null, null, null, null, null); if (mCursor != null) { mCursor.moveToFirst(); } return mCursor; } //---updates a title--- public boolean updateTitle(long rowId, String isbn, String title, String publisher) { ContentValues args = new ContentValues(); args.put(KEY_ISBN, isbn); args.put(KEY_TITLE, title); args.put(KEY_PUBLISHER, publisher); return db.update(DATABASE_TABLE, args, KEY_ROWID + "=" + rowId, null) > 0; } } DatabaseActivity.java package com.example.database1; import android.os.Bundle; import android.app.Activity; import android.database.Cursor; import android.view.Menu; import android.widget.Toast; public class DatabaseActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_database); DBAdapter db=new DBAdapter(this); db.open(); } } activity_database.xml: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent"> <EditText android:id="@+id/edit1" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <EditText android:id="@+id/edit2" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <EditText android:id="@+id/edit3" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <Button android:id="@+id/submit" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>

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  • Media query from a specific folder

    - by sensei
    I would like to understand how I can use a cursor to jpg files in a folder specified in the sdcard. I'm trying to select with a cursor the jpg files in a specific folder, and I tried this: This is the code: public static Uri getRandomImage(ContentResolver resolver) { String[] projection = new String[] { BaseColumns._ID, }; String folder = "/sdcard/DCIM/Wallpaper/"; folder = folder + "%"; Uri uri = Media.EXTERNAL_CONTENT_URI; String[] whereArgs = new String[]{folder}; Cursor cursor = resolver.query(uri, projection, null, whereArgs, MediaColumns._ID); if (cursor == null || cursor.getCount() <= 0) { return null; } cursor.moveToPosition(new Random().nextInt(cursor.getCount())); return Uri.withAppendedPath(uri, cursor.getString(0)); } but this code gives me error here is the logcat: E/AndroidRuntime(11986): FATAL EXCEPTION: main E/AndroidRuntime(11986): android.database.sqlite.SQLiteException: bind or column index out of range: handle 0x26a490 E/AndroidRuntime(11986): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:158) E/AndroidRuntime(11986): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:114) E/AndroidRuntime(11986): at android.content.ContentProviderProxy.bulkQueryInternal(ContentProviderNative.java:330) E/AndroidRuntime(11986): at android.content.ContentProviderProxy.query(ContentProviderNative.java:366) E/AndroidRuntime(11986): at android.content.ContentResolver.query(ContentResolver.java:245) E/AndroidRuntime(11986): at it.bisemanuDEV.slidepuzzle.SelectImagePreference.getRandomImage(SelectImagePreference.java:126) E/AndroidRuntime(11986): at it.bisemanuDEV.slidepuzzle.TileView.newGame(TileView.java:156) E/AndroidRuntime(11986): at it.bisemanuDEV.slidepuzzle.SlidePuzzleActivity.onOptionsItemSelected(SlidePuzzleActivity.java:377) E/AndroidRuntime(11986): at android.app.Activity.onMenuItemSelected(Activity.java:2762) E/AndroidRuntime(11986): at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:730) E/AndroidRuntime(11986): at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:143) E/AndroidRuntime(11986): at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:855) E/AndroidRuntime(11986): at com.android.internal.view.menu.IconMenuView.invokeItem(IconMenuView.java:532) E/AndroidRuntime(11986): at com.android.internal.view.menu.IconMenuItemView.performClick(IconMenuItemView.java:122) E/AndroidRuntime(11986): at android.view.View$PerformClick.run(View.java:8819) E/AndroidRuntime(11986): at android.os.Handler.handleCallback(Handler.java:603) E/AndroidRuntime(11986): at android.os.Handler.dispatchMessage(Handler.java:92) E/AndroidRuntime(11986): at android.os.Looper.loop(Looper.java:123) E/AndroidRuntime(11986): at android.app.ActivityThread.main(ActivityThread.java:4627) E/AndroidRuntime(11986): at java.lang.reflect.Method.invokeNative(Native Method) E/AndroidRuntime(11986): at java.lang.reflect.Method.invoke(Method.java:521) E/AndroidRuntime(11986): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) E/AndroidRuntime(11986): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) E/AndroidRuntime(11986): at dalvik.system.NativeStart.main(Native Method)

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  • How to align Buttons in a TableLayout to different directions?

    - by Bevor
    Hello, probably I don't understand the layout properties of TableLayout yet. It doesn't seem to be possible to achieve such a flexible table like in HTML, because there are no cells. My target is it to achieve such a layout: Link to draft How can I do that? I thought about using a GridView but this doesn't seem to be useful in XML. My efforts look like this: <TableLayout android:id="@+id/tableLayout" android:layout_width="320sp" android:layout_height="fill_parent" android:layout_gravity="center_horizontal" android:gravity="bottom" android:layout_alignParentBottom="true"> <TableRow android:background="#333333" android:gravity="bottom" android:layout_width="fill_parent"> <Button android:id="@+id/btnUp" android:layout_width="60sp" android:layout_height="50sp" android:gravity="left" android:text="Lift U" /> <Button android:id="@+id/btnScreenUp" android:gravity="right" android:layout_gravity="right" android:layout_width="60sp" android:layout_height="50sp" android:text="Scrn U" /> </TableRow> <TableRow android:background="#444444" android:gravity="bottom" android:layout_gravity="right"> <Button android:id="@+id/btnDown" android:layout_width="60sp" android:layout_height="50sp" android:text="Lift D" /> <Button android:id="@+id/btnScreenLeft" android:layout_width="60sp" android:layout_height="50sp" android:gravity="right" android:layout_gravity="right" android:text="Scrn L" /> <Button android:id="@+id/btnScreenDown" android:layout_width="60sp" android:layout_height="50sp" android:gravity="right" android:layout_gravity="right" android:text="Scrn D" /> <Button android:id="@+id/btnScreenRight" android:layout_width="60sp" android:layout_height="50sp" android:gravity="right" android:layout_gravity="right" android:text="Scrn R" /> </TableRow> </TableLayout>

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  • Android - Display HTML Formatted String

    - by Soren
    I need an example of how to display the strings that I have marked up with simple html into a TextView. I have found "Spanned fromHtml(String source)", but I don't know how to plug it into my java code. Here is my Java: package com.SorenWinslow.TriumphHistory; import android.app.ListActivity; import android.os.Bundle; import android.widget.ArrayAdapter; public class TriumphHistory extends ListActivity { String[] HistoryList; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ArrayAdapter<String> adapter; HistoryList = getResources().getStringArray(R.array.history); adapter = new ArrayAdapter<String> (this,R.layout.historylistlayout,HistoryList); setListAdapter(adapter); } } Here is a sample of history: <?xml version="1.0" encoding="utf-8"?> <resources> <string-array name="history"> <item><b>1883</b><br/>Some stuff happened</item> <item><b>1884</b><br/>Some more stuff happened <i>before</i> the other stuff </item> <resources> Here is my historylistlayout.xml: <?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/text1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:textAppearance="?android:attr/textAppearanceLarge" android:gravity="center_vertical" android:textColor="#ffffff" android:background="#000050" android:layout_marginTop="5px" android:minHeight="?android:attr/listPreferredItemHeight" android:padding="3px" android:textSize="8pt" android:layout_gravity="top|left"/> And here is my main.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:textColor="#ffffff" android:background="#000080" android:isScrollContainer="true" android:layout_height="fill_parent" android:layout_width="fill_parent" android:scrollbarStyle="insideOverlay"> <ListView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="wrap_content" android:clickable="true" android:dividerHeight="1px"/> </LinearLayout>

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  • Why my button can trigger the UI to scroll and my TimerTask inside the activity can't?

    - by Spidey
    Long Story Short: a method of my activity updates and scrolls the ListView through an ArrayAdapter like it should, but a method of an internal TimerTask for polling messages (which are displayed in the ListView) updates the ListView, but don't scroll it. Why? Long Story: I have a chat activity with this layout: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#fff" > <ListView android:id="@+id/messageList" android:layout_width="fill_parent" android:layout_height="fill_parent" android:stackFromBottom="true" android:transcriptMode="alwaysScroll" android:layout_weight="1" android:fadeScrollbars="true" /> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center" > <EditText android:id="@+id/message" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" /> <Button android:id="@+id/button_send" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Send" android:onClick="sendMessage" /> </LinearLayout> </LinearLayout> The internal listView (with id messageList) is populated by an ArrayAdapter which inflates the XML below and replaces strings in it. <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:clickable="false" android:background="#fff" android:paddingLeft="2dp" android:paddingRight="2dp" > <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/date" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="16sp" android:textColor="#00F" android:typeface="monospace" android:text="2010-10-12 12:12:03" android:gravity="left" /> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/sender" android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="16sp" android:textColor="#f84" android:text="spidey" android:gravity="right" android:textStyle="bold" /> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/body" android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="14sp" android:padding="1dp" android:gravity="left" android:layout_below="@id/date" android:text="Mensagem muito legal 123 quatro cinco seis." android:textColor="#000" /> </RelativeLayout> The problem is: in the main layout, I have a EditText for the chat message, and a Button to send the message. I have declared the adapter in the activity scope: public class ChatManager extends Activity{ private EditText et; private ListView lv; private Timestamp lastDate = null; private long campaignId; private ChatAdapter ca; private List<ChatMessage> vetMsg = new ArrayList<ChatMessage>(); private Timer chatPollingTimer; private static final int CHAT_POLLING_PERIOD = 10000; ... } So, inside sendMessage(View v), the notifyDataSetChanged() scrolls the ListView acordingly, so I can see the latest chat messages automatically: public void sendMessage(View v) { String msg = et.getText().toString(); if(msg.length() == 0){ return; } et.setText(""); String xml = ServerCom.sendAndGetChatMessages(campaignId, lastDate, msg); Vector<ChatMessage> vetNew = Chat.parse(new InputSource(new StringReader(xml))); //Pegando a última data if(!vetNew.isEmpty()){ lastDate = vetNew.lastElement().getDateSent(); //Atualizando a tela vetMsg.addAll(vetNew); ca.notifyDataSetChanged(); } } But inside my TimerTask, I can't. The ListView IS UPDATED, but it just don't scroll automatically. What am I doing wrong? private class chatPollingTask extends TimerTask { @Override public void run() { String xml; if(lastDate != null){ //Chama o Updater xml = ServerCom.getChatMessages(campaignId, lastDate); }else{ //Chama o init denovo xml = ServerCom.getChatMessages(campaignId); } Vector<ChatMessage> vetNew = Chat.parse(new InputSource(new StringReader(xml))); if(!(vetNew.isEmpty())){ //TODO: descobrir porque o chat não está rolando quando chegam novas mensagens //Descobrir também como forçar o rolamento, enquanto o bug não for corrigido. Log.d("CHAT", "New message(s) acquired!"); lastDate = vetNew.lastElement().getDateSent(); vetMsg.addAll(vetNew); ca.notifyDataSetChanged(); } } } How can I force the scroll to the bottom? I've tried using scrollTo using lv.getBottom()-lv.getHeight(), but didn't work. Is this a bug in the Android SDK? Sorry for the MASSIVE amount of code, but I guess this way the question gets pretty clear.

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  • 2 fundamental questions for the Androgurus ...Can someone guide me

    - by Saul Carpenter
    I have'nt plunged into Android Development as yet though Java Classes C++ all that is not new to me. Here are the questions folks. Appreciated any help on these : - If I need to develop test and deploy Android Apps do I NEED AN ANDROID Hardware device or is there a software Android Simulator like VMWARE or Virtual PC , where I can emulate the results.If there is such can you point me more info I have a Netbook ( the Chinese Ipad Clone ) running Android that has only Wi-Fi for the present. Is it possible to add the following features via the spare USB Port --- a USB Based 56K Modem : Are there Android platform H/W Drivers. --- a USB based RJ45 ( Ethernet LAN LandLine connection ) Adapter :Are there Android platform H/W Drivers. Please advise Thanks Saul

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  • Android : create RelativeLayout in Onclick Button?(Get Crash)

    - by A.A
    I have an Xml that add LinearLayout and RelativeLayout in ScrollView by programmatically.When i add Text with OnclickButton for first time show me message but for 2nd time get me crash : <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ScrollView android:id="@+id/scrollID" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1" > </ScrollView> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:baselineAligned="true" android:orientation="horizontal" android:paddingBottom="5dp" android:paddingLeft="5dp" android:paddingRight="5dp" android:weightSum="1" > <EditText android:id="@+id/txtInpuConversation" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="0.5" android:hint="Text" > <requestFocus /> </EditText> <Button android:id="@+id/btnSend" android:layout_width="0dip" android:layout_height="wrap_content" android:layout_weight="0.5" android:text="Click" /> </LinearLayout> </LinearLayout> My code : public class MainActivity extends Activity { String Medtconversation; EditText edtconversation; TextView txtviewUser; LinearLayout rilative; RelativeLayout relativeLayout; LinearLayout firstLinearLayout; ScrollView sclView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); edtconversation = (EditText) findViewById(R.id.txtInpuConversation); sclView = (ScrollView) findViewById(R.id.scrollID); Button btn = (Button) findViewById(R.id.btnSend); final Context context = this; btn.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { Medtconversation = edtconversation.getText().toString(); txtviewUser = new TextView(MainActivity.this); txtviewUser.setText(Medtconversation); relativeLayout = new RelativeLayout(context); firstLinearLayout= new LinearLayout(context); LayoutParams LLParamsT = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT); relativeLayout.setLayoutParams(LLParamsT); relativeLayout.addView(txtviewUser, new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); firstLinearLayout.setOrientation(LinearLayout.VERTICAL); LayoutParams LLParams = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT); firstLinearLayout.setLayoutParams(LLParams); firstLinearLayout.addView(relativeLayout); Crash here now======>sclView.addView(firstLinearLayout, new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); edtconversation.setText(""); } }); } } I need that when i click on Button and send message for 2nd time create a new RelativeLayout in LinearLayout for show.(In scrollView) Error : AndroidRuntime MainActivity$1.onClick(MainActivity.java:54)

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  • fitting buttons for multiple screens

    - by user3360327
    I want to develop my own keyboard and when I put first line button as you see the buttons are not fitting with any screens size. these are my questions: 1) how can I fit them? 2) is <TableLayout> is correct view layout? if it's not, which one is correct? this is XML code: <TableLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content"> <TableRow> <Button android:id="@+id/btnQ" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strQ" /> <Button android:id="@+id/btnW" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strW" /> <Button android:id="@+id/btnE" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strE" /> <Button android:id="@+id/btnR" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strR" /> <Button android:id="@+id/btnT" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strT" /> <Button android:id="@+id/btnY" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strY" /> <Button android:id="@+id/btnU" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strU" /> <Button android:id="@+id/btnI" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strI" /> <Button android:id="@+id/btnO" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strO" /> <Button android:id="@+id/btnP" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strP" /> </TableLayout>

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  • How can I force my checkbox's text to not wrap?

    - by B. Clay Shannon
    This is what my LinearLayout (horizontal) row looks like: I want the text of the checkbox to be on one line; The buttons don't have to be that wide - they'll still have plenty of space with the checkbox text lengthened a bit. What in my XML: <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <CheckBox android:id="@+id/ckbxAllow_New_Items" android:layout_width="0dip" android:layout_height="fill_parent" android:layout_weight="1" android:checked="true" android:text="@string/checkbox_Allow_New_Items" /> <Button android:id="@+id/btnOK" android:layout_width="0dip" android:layout_height="wrap_content" android:layout_weight="1" android:text="@string/button_OK" /> <Button android:id="@+id/btnCancel" android:layout_width="0dip" android:layout_height="wrap_content" android:layout_weight="1" android:text="@string/button_Cancel" /> </LinearLayout> ...needs to change in order to force my checkbox text not to wrap? UPDATE Following Der Golem's suggestion by adding this: android:lines="1" ...and also changing layout_weight for the checkbox from 1 to 2 (set to 1 for the buttons) gave me what I wanted:

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  • [Android] Launching activity from widget

    - by Steve H
    Hi, I'm trying to do something which really ought to be quite easy, but it's driving me crazy. I'm trying to launch an activity when a home screen widget is pressed, such as a configuration activity for the widget. I think I've followed word for word the tutorial on the Android Developers website, and even a few unofficial tutorials as well, but I must be missing something important as it doesn't work. Here is the code: public class VolumeChangerWidget extends AppWidgetProvider { public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds){ final int N = appWidgetIds.length; for (int i=0; i < N; i++) { int appWidgetId = appWidgetIds[i]; Log.d("Steve", "Running for appWidgetId " + appWidgetId); Toast.makeText(context, "Hello from onUpdate", Toast.LENGTH_SHORT); Log.d("Steve", "After the toast line"); Intent intent = new Intent(context, WidgetTest.class); PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0); RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget); views.setOnClickPendingIntent(R.id.button, pendingIntent); appWidgetManager.updateAppWidget(appWidgetId, views); } } } When adding the widget to the homescreen, Logcat shows the two debugging lines, though not the Toast. (Any ideas why not?) However, more vexing is that when I then click on the button with the PendingIntent associated with it, nothing happens at all. I know the "WidgetTest" activity can run because if I set up an Intent from within the main activity, it launches fine. In case it matters, here is the Android Manifest file: <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.steve" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".Volume_Change_Program" 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=".WidgetTest" android:label="@string/hello"> <intent_filter> <action android:name="android.intent.action.MAIN"/> <category android:name="android.intent.category.LAUNCHER"/> </intent_filter> </activity> <receiver android:name=".VolumeChangerWidget" > <intent-filter> <action android:name="android.appwidget.action.APPWIDGET_UPDATE" /> </intent-filter> <meta-data android:name="android.appwidget.provider" android:resource="@xml/volume_changer_info" /> </receiver> </application> <uses-sdk android:minSdkVersion="3" /> Is there a way to test where the fault is? I.e. is the fault that the button isn't linked properly to the PendingIntent, or that the PendingIntent or Intent isn't finding WidgetTest.class, etc? Thanks very much for your help! Steve

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  • PagerView overlapping PagerTabStrip / PagerTitleStrip

    - by user1256169
    I've been trying for about a week to get my PagerView not to overlap the TitleStrip. I've tried absolutely everything I can think of, and one StackOverflow question that looked like the same question, had an answer that wasn't applicable. It appears that both the PagerTitleStrip and the TextView start at 0,0 (left,top) Any help would be appreciated. Note that I can't use any XML (inc Layout.xml) so it's all done programatically. Here's a full working example of my problem: package com.example.projname; import android.app.Activity; import android.os.Bundle; import android.support.v4.view.PagerAdapter; import android.support.v4.view.PagerTabStrip; import android.support.v4.view.ViewPager; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import android.widget.TextView; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); MyPagerAdapter myPagerAdapter = new MyPagerAdapter(); PagerTabStrip myPagerTabStrip = new PagerTabStrip(this); myPagerTabStrip.setGravity(Gravity.TOP); ViewPager viewPager = new ViewPager(this); viewPager.addView(myPagerTabStrip, LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); viewPager.setAdapter(myPagerAdapter); setContentView(viewPager); } class MyPagerAdapter extends PagerAdapter { public final String[] Titles = { "Title One", "Title Two", "Title Three", "Title Four", "Title Five" }; @Override public int getCount() { return Titles.length; } @Override public boolean isViewFromObject(View view, Object object) { return (view == object); } @Override public CharSequence getPageTitle(int position) { return Titles[position]; } @Override public Object instantiateItem(ViewGroup container, int position) { TextView textView = new TextView(getApplicationContext()); String myString = new String("Page " + (position + 1) + "\r\n"); textView.setText(myString + myString + myString + myString + myString + myString); container.addView(textView); return textView; } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((View) object); } } } Edit: Adding a screenshot of the problem:

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  • Android custom xml widget

    - by DrogoNevets
    I have an XML file in my layout folder that has how i want my custom widget/view (not sure what correct terminology is here). but how do i make it so that i can programatically, add one or more to an activity the xml file is as follows <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/viewLog"> <TextView android:id="@+id/viewLogClimbName" android:layout_width="fill_parent" android:singleLine="true" android:ellipsize="end" android:gravity="left" /> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1"> <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content"> <TextView android:id="@+id/viewLogDate" android:layout_width="fill_parent" android:singleLine="true" android:ellipsize="end" android:gravity="left" /> <TextView android:id="@+id/viewLogStyle" android:layout_width="fill_parent" android:singleLine="true" android:ellipsize="end" android:gravity="left" /> </LinearLayout> <TextView android:id="@+id/viewLogDetails" android:layout_width="fill_parent" android:layout_height="fill_parent" android:ellipsize="end" android:gravity="left" android:layout_weight="1" /> </LinearLayout> </LinearLayout> I have looked at the android how-to and dont really understand what its getting at

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  • Scale background image to wrap content of layout

    - by bjg222
    I have a layout that contains some text fields and has a background image that's displayed at the top of my activity. I'd like the background image to scale to wrap the content (don't care about aspect ratio). However, the image is larger than content, so the layout instead wraps the background image. Here's my original code: <RelativeLayout android:layout_width="fill_parent" android:id="@+id/HeaderList" android:layout_gravity="top" android:layout_height="wrap_content" android:background="@drawable/header"> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/NameText" android:text="Jhn Doe" android:textColor="#FFFFFF" android:textSize="30sp" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:paddingLeft="4dp" android:paddingTop="4dp" /> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:textColor="#FFFFFF" android:layout_alignParentLeft="true" android:id="@+id/HoursText" android:text="170 hours" android:textSize="23sp" android:layout_below="@+id/NameText" android:paddingLeft="4dp" /> </RelativeLayout> After searching through some other questions, I found these two: How to wrap content views rather than background drawable? Scale a Drawable or background image? Based on this, I created a FrameLayout w/ an ImageView showing the background. Unfortunately, I still can't get it to work. I want the height of the background image to shrink/expand w/ the size of the text views, but with the FrameLayout, the ImageView fits to the size of it's parent, and I can't find a way to make the parent fit to the size the text view layout. Here's my updated code: <FrameLayout android:layout_width="fill_parent" android:layout_height="wrap_content" > <ImageView android:src="@drawable/header" android:layout_width="fill_parent" android:scaleType="fitXY" android:layout_height="fill_parent" /> <RelativeLayout android:layout_width="fill_parent" android:id="@+id/HeaderList" android:layout_gravity="top" android:layout_height="wrap_content" > <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/NameText" android:text="John Doe" android:textColor="#FFFFFF" android:textSize="30sp" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:paddingLeft="4dp" android:paddingTop="4dp" /> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:textColor="#FFFFFF" android:layout_alignParentLeft="true" android:id="@+id/HoursText" android:text="170 hours" android:textSize="23sp" android:layout_below="@+id/NameText" android:paddingLeft="4dp" /> </RelativeLayout> </FrameLayout> Does anybody have any suggestions for how best to make an image scale to the size of the contents of some layout? I'm not concerned with the aspect ratio of the image, as it won't matter, I just want it to fill the background. Thanks!

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  • Linear Layout over relative layout

    - by Sai
    I have a relative layout for Camera preview with some overlay features. The layout file looks like the one in shown below: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <android.view.SurfaceView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/preview" android:layout_width="fill_parent" android:layout_height="fill_parent" > </android.view.SurfaceView> </RelativeLayout> I integrated some menu options from the android bluetooth chat example. The menu options work fine but if I click on one of the options, the app just froze. It opens a debug perspective but I am not able to understand them. The app does not seem to crash but it just froze. The layout that I am using for the menu options is: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" > <TextView android:id="@+id/title_paired_devices" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/title_paired_devices" android:visibility="gone" android:textColor="#fff" android:paddingLeft="5dp" /> <ListView android:id="@+id/paired_devices" android:layout_width="match_parent" android:layout_height="wrap_content" android:stackFromBottom="true" android:layout_weight="1" /> <TextView android:id="@+id/title_new_devices" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/title_other_devices" android:visibility="gone" android:textColor="#fff" android:paddingLeft="5dp" /> <ListView android:id="@+id/new_devices" android:layout_width="match_parent" android:layout_height="wrap_content" android:stackFromBottom="true" android:layout_weight="2" /> Can I attribute this to the fact that I am trying to overlay Linear layout over relative layout? Any suggestions to display the list of bluetooth devices over camera preview would be greatly appreciated

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  • Android ViewPager Displaying TextView in Layout

    - by Ammonious
    I'm having a problem getting my viewpager to work correctly. Currently the bottom part of my layout will page across but the remaining part will not Here's my code that I have in my PageAdapter public class MyPageAdapter extends PagerAdapter { public int getCount() { return 31; } public Object instantiateItem(View collection, int position) { LayoutInflater inflater = (LayoutInflater) collection.getContext() .getSystemService(Context.LAYOUT_INFLATER_SERVICE); int resId = 0; switch (position) { case 0: resId = R.layout.main_menu; break; case 1: resId = R.layout.article1; break; case 2: resId = R.layout.article2; break; .... .... View view = inflater.inflate(resId, null); ((ViewPager) collection).addView(view, 0); return view; This is what I have for my XML <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:background="@drawable/background" android:clickable="true" android:id="@+id/layout13" android:weightSum="0"> <TextView android:id="@+id/textView01" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_vertical|center_horizontal" android:padding="12dp" android:text="@string/article13" android:textAppearance="?android:attr/textAppearanceLarge" android:textColor="#000000" /> <TextView android:id="@+id/textView02" android:layout_width="match_parent" android:layout_height="302dp" android:gravity="center_vertical|center_horizontal" android:text="@string/body13" android:textAppearance="?android:attr/textAppearanceLarge" android:textColor="#000000" /> <android.support.v4.view.ViewPager android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@id/viewPager" > </android.support.v4.view.ViewPager> </LinearLayout> I've tried Moving the around in my XML layout to right underneath my LinearLayout and i get the full screen but all my text disappears. It's probably something simple i'm missing but any help on this would be greatly appreciated!

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  • Android: manifest targetSdkVersion change resulted in: icon not visible, widget no longer works, and

    - by Casey
    I recently upgraded my Android app to support multiple resolutions. Previously, my Android.manifest file had a line: To support multiple density and resolution devices, I changed this to: <supports-screens android:smallScreens="false" android:normalScreens="true" android:largeScreens="true" android:anyDensity="true" /> <uses-sdk android:minSdkVersion="3" android:targetSdkVersion="4" /> I then added a couple of new directories, like drawable-hdpi-v4 and drawable-long-hdpi-v4 that includes the high-res versions of the graphics. That's about it. Ever since releasing this update, there have been a decent number of users complaining about various problems: - the app icon doesn't appear (I did not create a high res version of the icon) - the home screen widget no longer works, even if they delete and re-add it (this code did not change with the update). I've had a user send me their error log, which shows: 03-19 20:59:41.617 W/ActivityManager( 1854): Unable to launch app com.alt12.babybump/10078 for broadcast Intent { action=android.appwidget.action.APPWIDGET_UPDATE flags=0x4 comp={com.alt12.babybump/com.alt12.babybump.WidgetGirl} (has extras) }: process is bad There is one questionable section in my existing widget code that may be relevant: @Override public void onReceive(Context context, Intent intent) { // v1.5 fix that doesn't call onDelete Action final String action = intent.getAction(); if (AppWidgetManager.ACTION_APPWIDGET_DELETED.equals(action)) { final int appWidgetId = intent.getExtras().getInt( AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) { this.onDeleted(context, new int[] { appWidgetId }); } } else { super.onReceive(context, intent); } } And perhaps most troublesome: the sqlite database is no longer accessible/writeable for some users so their data is no longer available. I did add the WRITE_EXTERNAL_STORAGE permission to the manifest. This is only happening to certain users and it tends to be HTC Eris users. In that error log I see things such as: 03-19 16:00:56.173 E/FlurryAgent( 4791): java.io.FileNotFoundException: /data/data/com.alt12.babybump/files/.flurryagent.-2333f5cb 03-19 16:00:56.173 E/FlurryAgent( 4791): at org.apache.harmony.luni.platform.OSFileSystem.open(OSFileSystem.java:231) 03-19 16:01:09.393 E/Database( 4791): sqlite3_open_v2("/data/data/com.alt12.babybump/databases/uitematmamad.db", &handle, 6, NULL) failed 03-19 16:01:09.393 W/System.err( 4791): android.database.sqlite.SQLiteException: unable to open database file It's as if the update has caused a new process and it can't access the old process's data, or something. Any help appreciated!

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  • Android ndk-build command does nothing

    - by James
    I have a similar question to that posted here: Android NDK: why ndk-build doesn't generate .so file and a new libs folder in Eclipse? ...though I am running Windows 7, not Mac os. Essentially the ndk-build command is run, gives no error but doesn't create an .so file (also, since I'm on windows this should create a .dll and not an .so?). I tried running the command from the root, jni, src folders etc. but got the same result; cmd just returns to the prompter after a few seconds. I ran it again from the jni folder with NDK_LOG=1 parameter to see what was happening. Here is a portion of the transcript of the log results after running ndk-build in the jni folder (after it successfully identified the platform, etc.)... Android NDK: Looking for jni/Android.mk in /workspace/NdkFooActivity/jni Android NDK: Looking for jni/Android.mk in /workspace/NdkFooActivity Android NDK: Found it ! Android NDK: Found project path: /workspace/NdkFooActivity Android NDK: Ouput path: /workspace/NdkFooActivity/obj Android NDK: Parsing /cygdrive/c/android-ndk-r8/build/core/default-application.mk Android NDK: Found APP_PLATFORM=android-15 in /workspace/NdkFooActivity/project.properties Android NDK: Application local targets unknown platform 'android-15' Android NDK: Switching to android-14 Android NDK: Using build script /workspace/NdkFooActivity/jni/Android.mk Android NDK: Application 'local' is not debuggable Android NDK: Selecting release optimization mode (app is not debuggable) Android NDK: Adding import directory: /cygdrive/c/android-ndk-r8/sources Android NDK: Building application 'local' for ABI 'armeabi' Android NDK: Using target toolchain 'arm-linux-androideabi-4.4.3' for 'armeabi' ABI Android NDK: Looking for imported module with tag 'cxx-stl/system' Android NDK: Probing /cygdrive/c/android-ndk-r8/sources/cxx-stl/system/Android.mk Android NDK: Found in /cygdrive/c/android-ndk-r8/sources/cxx-stl/system Android NDK: Cygwin dependency file conversion script: ...after which point it just runs the script mentioned in the last line, then terminates. Any ideas? Thanks!

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  • Android Layout: Display as much ImageViews as possible without scrolling

    - by Toni4780
    I am working on an app which should display several same size images on the screen. But it should only display only so much images as possible without offering scrolling. E.g. On a "big" tablet it could display 10x10 Imageviews (screen is large, so there is much space for pictures) On a "big" phone there might be enough space to display 6x6 ImageViews, so it should only display a 6x6 array of images. On a small phone there is propably only space for 4x4 ImageViews, so it should only display this. How can I make this in Android? I know about "layout-large", ... but if i make a special fixed xml-layout for a "large" device, it would not fit all devices correct. E.g. a Galaxy Nexus is a "normal" device and so is a Nexus One, but there would be at least be space for one or two more imageview rows on a Galaxy Nexus than on a Nexus One. So do I have to measure in code somehow how big the resolution is and display some TableRows accordingly? Or is there a special way how I can manage this?

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  • Android: NullPointerException error in getting data in database

    - by Gil Viernes Marcelo
    This what happens in the system. 1. Admin login this is in other activity but i will not post it coz it has nothing to do with this (no problem) 2. Register user in system (using database no problem) 3. Click add user button (where existing user who register must display its name in ListView) Problem: When I click adduser to see if the system registered the user, it force close. CurrentUser.java package com.example.istronggyminstructor; import java.util.ArrayList; import android.os.Bundle; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.database.Cursor; import android.view.Gravity; import android.view.LayoutInflater; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import android.view.WindowManager; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.ListView; import android.widget.PopupWindow; import android.widget.TextView; import android.widget.Toast; import java.util.ArrayList; import java.util.List; import java.util.Random; import com.example.istronggyminstructor.registeredUserList.Users; import android.content.ContentValues; import android.database.Cursor; import android.database.SQLException; import android.database.sqlite.SQLiteDatabase; public class CurrentUsers extends Activity { private Button register; private Button adduser; EditText getusertext, getpass, getweight, textdisp; View popupview, popupview2; public static ArrayList<String> ArrayofName = new ArrayList<String>(); protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_current_users); register = (Button) findViewById(R.id.regbut); adduser = (Button) findViewById(R.id.addbut); register.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { LayoutInflater inflator = (LayoutInflater) getBaseContext() .getSystemService(LAYOUT_INFLATER_SERVICE); popupview = inflator.inflate(R.layout.popup, null); final PopupWindow popupWindow = new PopupWindow(popupview, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); popupWindow.showAtLocation(popupview, Gravity.CENTER, 0, 0); popupWindow.setFocusable(true); popupWindow.update(); Button dismissbtn = (Button) popupview.findViewById(R.id.close); dismissbtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { popupWindow.dismiss(); } }); popupWindow.showAsDropDown(register, 50, -30); } }); //Thread.setDefaultUncaughtExceptionHandler(new forceclose(this)); } public void registerUser(View v) { EditText username = (EditText) popupview.findViewById(R.id.usertext); EditText password = (EditText) popupview .findViewById(R.id.passwordtext); EditText weight = (EditText) popupview.findViewById(R.id.weight); String getUsername = username.getText().toString(); String getPassword = password.getText().toString(); String getWeight = weight.getText().toString(); dataHandler dbHandler = new dataHandler(this, null, null, 1); Users user = new Users(getUsername, getPassword, Integer.parseInt(getWeight)); dbHandler.addUsers(user); Toast.makeText(getApplicationContext(), "Registering...", Toast.LENGTH_SHORT).show(); } public void onClick_addUser(View v) { LayoutInflater inflator = (LayoutInflater) getBaseContext() .getSystemService(LAYOUT_INFLATER_SERVICE); popupview2 = inflator.inflate(R.layout.popup2, null); final PopupWindow popupWindow = new PopupWindow(popupview2, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); popupWindow.showAtLocation(popupview2, Gravity.CENTER, 0, -10); popupWindow.setFocusable(true); popupWindow.update(); Button dismissbtn = (Button) popupview2.findViewById(R.id.close2); dismissbtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { popupWindow.dismiss(); } }); popupWindow.showAsDropDown(register, 50, -30); dataHandler dbHandler = new dataHandler(this, null, null, 1); dbHandler.getAllUsers(); ListView list = (ListView)findViewById(R.layout.popup2); ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, ArrayofName); list.setAdapter(adapter); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.current_users, menu); return true; } } registeredUserList.java package com.example.istronggyminstructor; public class registeredUserList { public static class Users { private static int _id; private static String _users; private static String _password; private static int _weight; private static String[] _workoutlists; private static int _score; public Users() { } public Users(String username, String password, int weight) { _users = username; _password = password; _weight = weight; } public int getId() { return _id; } public static void setId(int id) { _id = id; } public String getUsers() { return _users; } public static void setUsers(String users) { _users = users; } public String getPassword(){ return _password; } public void setPassword(String password){ _password = password; } public int getWeight(){ return _weight; } public static void setWeight(int weight){ _weight = weight; } public String[] getWorkoutLists(){ return _workoutlists; } public void setWorkoutLists(String[] workoutlists){ _workoutlists = workoutlists; } public int score(){ return _score; } public void score(int score){ _score = score; } } } dataHandler.java package com.example.istronggyminstructor; import java.util.ArrayList; import java.util.List; import com.example.istronggyminstructor.registeredUserList.Users; import android.content.ContentValues; import android.content.Context; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteDatabase.CursorFactory; import android.database.sqlite.SQLiteOpenHelper; public class dataHandler extends SQLiteOpenHelper { private static final int DATABASE_VERSION = 1; private static final String DATABASE_NAME = "userInfo.db"; public static final String TABLE_USERINFO = "user"; public static final String COLUMN_ID = "_id"; public static final String COLUMN_USERNAME = "username"; public static final String COLUMN_PASSWORD = "password"; public static final String COLUMN_WEIGHT = "weight"; public dataHandler(Context context, String name, CursorFactory factory, int version) { super(context, DATABASE_NAME, factory, DATABASE_VERSION); } @Override public void onCreate(SQLiteDatabase db) { String CREATE_USER_TABLE = "CREATE TABLE " + TABLE_USERINFO + " (" + COLUMN_ID + " INTEGER PRIMARY KEY, " + COLUMN_USERNAME + " TEXT," + COLUMN_PASSWORD + " TEXT, " + COLUMN_WEIGHT + " INTEGER " + ");"; db.execSQL(CREATE_USER_TABLE); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { db.execSQL("DROP TABLE IF EXISTS " + TABLE_USERINFO); onCreate(db); } public void addUsers(Users user) { ContentValues values = new ContentValues(); values.put(COLUMN_USERNAME, user.getUsers()); values.put(COLUMN_PASSWORD, user.getPassword()); values.put(COLUMN_WEIGHT, user.getWeight()); SQLiteDatabase db = this.getWritableDatabase(); db.insert(TABLE_USERINFO, null, values); db.close(); } public Users findUsers(String username) { String query = "Select * FROM " + TABLE_USERINFO + " WHERE " + COLUMN_USERNAME + " = \"" + username + "\""; SQLiteDatabase db = this.getWritableDatabase(); Cursor cursor = db.rawQuery(query, null); Users user = new Users(); if (cursor.moveToFirst()) { cursor.moveToFirst(); Users.setUsers(cursor.getString(1)); //Users.setWeight(Integer.parseInt(cursor.getString(3))); not yet needed cursor.close(); } else { user = null; } db.close(); return user; } public List<Users> getAllUsers(){ List<Users> user = new ArrayList(); String selectQuery = "SELECT * FROM " + TABLE_USERINFO; SQLiteDatabase db = this.getWritableDatabase(); Cursor cursor = db.rawQuery(selectQuery, null); if (cursor.moveToFirst()) { do { Users users = new Users(); users.setUsers(cursor.getString(1)); String name = cursor.getString(1); CurrentUsers.ArrayofName.add(name); // Adding contact to list user.add(users); } while (cursor.moveToNext()); } // return user list return user; } public boolean deleteUsers(String username) { boolean result = false; String query = "Select * FROM " + TABLE_USERINFO + " WHERE " + COLUMN_USERNAME + " = \"" + username + "\""; SQLiteDatabase db = this.getWritableDatabase(); Cursor cursor = db.rawQuery(query, null); Users user = new Users(); if (cursor.moveToFirst()) { Users.setId(Integer.parseInt(cursor.getString(0))); db.delete(TABLE_USERINFO, COLUMN_ID + " = ?", new String[] { String.valueOf(user.getId()) }); cursor.close(); result = true; } db.close(); return result; } } Logcat 08-20 03:23:23.293: E/AndroidRuntime(16363): FATAL EXCEPTION: main 08-20 03:23:23.293: E/AndroidRuntime(16363): java.lang.IllegalStateException: Could not execute method of the activity 08-20 03:23:23.293: E/AndroidRuntime(16363): at android.view.View$1.onClick(View.java:3599) 08-20 03:23:23.293: E/AndroidRuntime(16363): at android.view.View.performClick(View.java:4204) 08-20 03:23:23.293: E/AndroidRuntime(16363): at android.view.View$PerformClick.run(View.java:17355) 08-20 03:23:23.293: E/AndroidRuntime(16363): at android.os.Handler.handleCallback(Handler.java:725) 08-20 03:23:23.293: E/AndroidRuntime(16363): at android.os.Handler.dispatchMessage(Handler.java:92) 08-20 03:23:23.293: E/AndroidRuntime(16363): at android.os.Looper.loop(Looper.java:137) 08-20 03:23:23.293: E/AndroidRuntime(16363): at android.app.ActivityThread.main(ActivityThread.java:5041) 08-20 03:23:23.293: E/AndroidRuntime(16363): at java.lang.reflect.Method.invokeNative(Native Method) 08-20 03:23:23.293: E/AndroidRuntime(16363): at java.lang.reflect.Method.invoke(Method.java:511) 08-20 03:23:23.293: E/AndroidRuntime(16363): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 08-20 03:23:23.293: E/AndroidRuntime(16363): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 08-20 03:23:23.293: E/AndroidRuntime(16363): at dalvik.system.NativeStart.main(Native Method) 08-20 03:23:23.293: E/AndroidRuntime(16363): Caused by: java.lang.reflect.InvocationTargetException 08-20 03:23:23.293: E/AndroidRuntime(16363): at java.lang.reflect.Method.invokeNative(Native Method) 08-20 03:23:23.293: E/AndroidRuntime(16363): at java.lang.reflect.Method.invoke(Method.java:511) 08-20 03:23:23.293: E/AndroidRuntime(16363): at android.view.View$1.onClick(View.java:3594) 08-20 03:23:23.293: E/AndroidRuntime(16363): ... 11 more 08-20 03:23:23.293: E/AndroidRuntime(16363): Caused by: java.lang.NullPointerException 08-20 03:23:23.293: E/AndroidRuntime(16363): at com.example.istronggyminstructor.CurrentUsers.onClick_addUser(CurrentUsers.java:118) 08-20 03:23:23.293: E/AndroidRuntime(16363): ... 14 more

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