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  • Andorid: the keyboard appeares when the app is started

    - by Briesanji
    I have coded an Android application composed by a LinearLayout(with an editbox and a button) and a ScrollView(with a LinearLayout that contains a TextView). When the app is started the keyboard pops up immediatly and I don't want this to happen. Have you got some advice?? THIS IS MY LAYOUT : <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:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example.b2875.Messaggi$PlaceholderFragment" > <LinearLayout android:layout_width="fill_parent" android:layout_height="70dp" android:layout_marginTop="650dp" > <EditText android:id="@+id/ScriviMessaggio" android:layout_width="332dp" android:layout_height="71dp" android:ems="10" android:hint="@string/scriviMessaggio" /> <Button android:id="@+id/invia" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/invia" /> </LinearLayout> <ScrollView android:id="@+id/scrollView1" android:scrollbarAlwaysDrawVerticalTrack="true" android:layout_width="fill_parent" android:layout_height="600dp" android:focusable="true" android:focusableInTouchMode="true" > <LinearLayout android:id="@+id/linearVertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > <TextView android:id="@+id/AreaMessaggi" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/messaggi" /> </LinearLayout> </ScrollView> </RelativeLayout> MY MANIFEST IS THIS: <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.b2875" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="19" /> <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:windowSoftInputMode="stateHidden" android:name="com.example.b2875.Messaggi" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>

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  • Android: How to resize a custom view programmatically?

    - by herbertD
    Hi all! I am coding a custom view, extended from RelativeLayout, and I want to resize it programmatically, How can I do? the custom view Class is something like: public ActiveSlideView(Context context, AttributeSet attr){ super(context, attr); LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); if(inflater != null){ inflater.inflate(R.layout.active_slide, this); }

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  • Position of SlidingDrawer handle?

    - by Christian Gawron
    I would like to have two overlapping SlidingDrawers (spanning the whole application window) with their handles side by side so that the user can open both drawers easily. However, it seems that the handle is always positioned horizontally centered (for a vertical SlidingDrawer) so that the handles collide. I tried both FrameLayout and RelativeLayout for the parent, but layout options like android:layout_alignRight seem to be ignored for the handles.

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  • SurfaceView for Camera Preview won't get destroyed when pressing Power-Botton

    - by for3st
    I want to implement a camera preview. For that I have a custom View CameraView extends ViewGroup that in the constructor programatically creates an surfaceView. I have the following components (higly simplified for beverity): ScannerFragment.java public View onCreateView(..) { //inflate view and get cameraView } public void onResume() { //open camera -> set rotation -> startPreview (in a thread) -> //set preview callback -> start decoding worker } public void onPause() { // stop decoding worker -> stop Preview -> release camera } CameraView.java extends ViewGroup public void setUpCalledInConstructor(Context context) { //create a surfaceview and add it to this viewgroup -> //get SurfaceHolder and set callback } /* SurfaceHolder.Callback */ public void surfaceCreated(SurfaceHolder holder) { camera.setPreviewDisplay(holder); } public void surfaceDestroyed(SurfaceHolder holder) { //NOTHING is done here } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { camera.getParameters().setPreviewSize(previewSize.width, previewSize.height); } fragment_scanner.xml <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"> <com.myapp.camera.CameraView android:id="@+id/cameraPreview" android:layout_width="match_parent" android:layout_height="match_parent"/> </RelativeLayout> I think I have set the lifecycle correct (getting resources onResume(), releasing it onPause() roughly said) and the following works just fine: pressing home and returning pressing Taskswitcher and returning rotation But one thing doesn't work and that is when I press the power-button on the device and then return to the camera-preview. The result is: the preview is stuck with the image that was last captured before button was pressed. If I rotate it works fine again, since it will get through the lifecycle. After some research I found out that this is probably due to the fact that surfaceView won't get destroyed when the power-button is pressed, i.e. SurfaceHolder.Callback.surfaceDestroyed(SurfaceHolder holder) won't be called. And in fact when I compare the (very verbose) log output of the home-button-case and the power-button-case it's the same except that 'surfaceDestroyed' won't get called. So far I found no solution whatsoever to work around it. I purposely avoid any resource cleaning code in my surfaceDestroyed(), but this does not help. My idea was to manually destroy the surfaceView like asked in this question but this seems not possible. I also tested other applications with surfaceViews/cameras and they don't seem to have this issue. So I would appreciate any hints or tips on that.

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  • Is my fragment usage correct, seems to be slow on adnroid

    - by Robertoq
    My app structure is that i have a menu with 5 menu-point om the left side, and the content on the right side. MainActivity.xml <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" > <fragment android:id="@+id/fragmentMenu" android:name="com.example.FragmentMenu" android:layout_width="@dimen/MenuWidth" android:layout_height="match_parent" /> <LinearLayout android:id="@+id/content" android:layout_width="match_parent" android:layout_height="match_parent" android_layout_toRightOf="@+id/fragmentMenu" android:orientation="vertical"/> </RelativeLayout> MainActivity.java public class FragmentActivityMain extends FragmentActivity { @Override protected void onCreate(final Bundle arg0) { super.onCreate(arg0); setContentView(R.layout.fragment_activity_main); FragmentManager fm = getSupportFragmentManager(); FragmentMenu fragmentMenu = (FragmentMenu) fm.findFragmentById(R.id.fragmentMenu); fragmentMenu.init(); } } And certainly I have a FragmenMenu class, public class FragmentMenu extends ListFragment { @Override public View onCreateView(final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_menu, container, false); return view; } public init() { FragmentManager fm = getFragmentManager(); FragmentTransaction ft = fm.beginTransaction(); FragmentNowListView lw = new FragmentCarListView(); ft.add(R.id.content, lw); ft.commit(); } } The FragmentCarList is a simple list, now with static test data, only five items in a List My Problem: Slow. I tested the app on my phone (Galaxy S3) and I see white screen when app starting, around 0,5 second and this is the log: 10-29 11:43:44.093: D/dalvikvm(29710): GC_CONCURRENT freed 267K, 5% free 13903K/14535K, paused 10ms+2ms 10-29 11:43:44.133: D/dalvikvm(29710): GC_FOR_ALLOC freed 215K, 6% free 13896K/14663K, paused 12ms 10-29 11:43:44.233: D/dalvikvm(29710): GC_FOR_ALLOC freed 262K, 6% free 13901K/14663K, paused 12ms 10-29 11:43:44.258: D/dalvikvm(29710): GC_FOR_ALLOC freed 212K, 6% free 13897K/14663K, paused 13ms 10-29 11:43:44.278: D/dalvikvm(29710): GC_FOR_ALLOC freed 208K, 6% free 13897K/14663K, paused 12ms 10-29 11:43:44.328: D/dalvikvm(29710): GC_FOR_ALLOC freed 131K, 4% free 14098K/14663K, paused 12ms 10-29 11:43:44.398: D/dalvikvm(29710): GC_CONCURRENT freed 20K, 3% free 14559K/14919K, paused 1ms+4ms And when I tested on Xperia Ray, the whit screen appear longer time. How can I optimize my fragments? Thx

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  • Android WVGA800 and 854

    - by Droidy
    Although my relativelayout looks very similar on WVGA800 and WVGA854 on the emulator, theres different spacing on some of the objects because I'm going off of marginleft or marginright. Since the 854 is a greater width, its pushing some objects differently. Is there any way I could target either one to adjust for the different margins?

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  • How do compare dates when one of those are in string format in android

    - by Raj
    I am very much new to android so need some good help with a code example. I am getting a date in form of string from a server in the following format 2012-08-17 00:00:00 I want to compare this string with current date to find the difference between the dates in the form of year, months and days... I tried playing around it in the following code Date currentDate = new Date(System.currentTimeMillis()); Log.v("@@@@@@@@@","Current Date: " + currentDate); Date passDate = new SimpleDateFormat().parse(passDateString); Log.v("@@@@@@@@@","Pass Date: " + passDate); dateDifference = passDate.compareTo(currentDate); but it returned with following exception 04-15 12:08:29.101: V/@@@@@@@@@(1161): Current Date: Sun Apr 15 12:08:29 GMT+01:00 2012 04-15 12:08:29.101: W/System.err(1161): java.text.ParseException: Unparseable date: 2012-08-17 00:00:00 04-15 12:08:29.111: W/System.err(1161): at java.text.DateFormat.parse(DateFormat.java:645) 04-15 12:08:29.111: W/System.err(1161): at org.apis.PassesListItemAdapter.getView(PassesListItemAdapter.java:77) 04-15 12:08:29.111: W/System.err(1161): at android.widget.AbsListView.obtainView(AbsListView.java:1315) 04-15 12:08:29.111: W/System.err(1161): at android.widget.ListView.makeAndAddView(ListView.java:1727) 04-15 12:08:29.111: W/System.err(1161): at android.widget.ListView.fillDown(ListView.java:652) 04-15 12:08:29.111: W/System.err(1161): at android.widget.ListView.fillFromTop(ListView.java:709) 04-15 12:08:29.111: W/System.err(1161): at android.widget.ListView.layoutChildren(ListView.java:1580) 04-15 12:08:29.111: W/System.err(1161): at android.widget.AbsListView.onLayout(AbsListView.java:1147) 04-15 12:08:29.111: W/System.err(1161): at android.view.View.layout(View.java:7034) 04-15 12:08:29.111: W/System.err(1161): at android.widget.RelativeLayout.onLayout(RelativeLayout.java:909) 04-15 12:08:29.111: W/System.err(1161): at android.view.View.layout(View.java:7034) 04-15 12:08:29.111: W/System.err(1161): at android.widget.FrameLayout.onLayout(FrameLayout.java:333) 04-15 12:08:29.111: W/System.err(1161): at android.view.View.layout(View.java:7034) 04-15 12:08:29.111: W/System.err(1161): at android.widget.FrameLayout.onLayout(FrameLayout.java:333) 04-15 12:08:29.111: W/System.err(1161): at android.view.View.layout(View.java:7034) 04-15 12:08:29.111: W/System.err(1161): at android.view.ViewRoot.performTraversals(ViewRoot.java:1049) 04-15 12:08:29.111: W/System.err(1161): at android.view.ViewRoot.handleMessage(ViewRoot.java:1744) 04-15 12:08:29.111: W/System.err(1161): at android.os.Handler.dispatchMessage(Handler.java:99) 04-15 12:08:29.111: W/System.err(1161): at android.os.Looper.loop(Looper.java:144) 04-15 12:08:29.111: W/System.err(1161): at android.app.ActivityThread.main(ActivityThread.java:4937) 04-15 12:08:29.111: W/System.err(1161): at java.lang.reflect.Method.invokeNative(Native Method) 04-15 12:08:29.111: W/System.err(1161): at java.lang.reflect.Method.invoke(Method.java:521) 04-15 12:08:29.111: W/System.err(1161): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 04-15 12:08:29.111: W/System.err(1161): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 04-15 12:08:29.111: W/System.err(1161): at dalvik.system.NativeStart.main(Native Method) I am stuck... please help Raj

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  • [Android] Show default selection color for custom listview

    - by Diego
    Hello, I have a listview with a custom BaseAdapter. Each row of the listview has a TextView and a CheckBox. The problem is when I click (or touch) any row, the textview foreground becomes gray, instead of the default behavior (background - green, textview foreground - white). Here is the code: row.xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" style="@style/layout"> <TextView android:id="@+id/main_lv_item_textView" style="@style/textViewBig" android:layout_alignParentLeft="true"/> <CheckBox android:id="@+id/main_lv_item_checkBox" style="@style/checkBox" android:layout_width="wrap_content" android:layout_alignParentRight="true"/> </RelativeLayout> Custom Adapter: public class CustomAdapter extends BaseAdapter { private List<Profile> profiles; private LayoutInflater inflater; private TextView tvName; private CheckBox cbEnabled; public CustomAdapter(List<Profile> profiles) { this.profiles = profiles; inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } public int getCount() { return profiles.size(); } public Object getItem(int position) { return profiles.get(position); } public long getItemId(int position) { return position; } public View getView(final int position, View convertView, ViewGroup parent) { View row = inflater.inflate(R.layout.main_lv_item, null); final Profile profile = profiles.get(position); tvName = (TextView) row.findViewById(R.id.main_lv_item_textView); registerForContextMenu(tvName); cbEnabled = (CheckBox) row.findViewById(R.id.main_lv_item_checkBox); tvName.setText(profile.getName()); if (profile.isEnabled()) { cbEnabled.setChecked(true); } tvName.setOnClickListener(new OnClickListener() { public void onClick(View v) { Bundle bundle = new Bundle(); bundle.putString(PROFILE_NAME_KEY, profile.getName()); Intent intent = new Intent(context, GuiProfile.class); intent.putExtras(bundle); startActivity(intent); } }); tvName.setOnLongClickListener(new OnLongClickListener() { public boolean onLongClick(View v) { selectedProfileName = ((TextView) v).getText().toString(); return false; } }); cbEnabled.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (!profile.isEnabled()) { for (Profile profile : profiles) { if (profile.isEnabled()) { profile.setEnabled(false); Database.getInstance().storeProfile(profile); } } } profile.setEnabled(isChecked); Database.getInstance().storeProfile(profile); updateListView(); } }); return row; } } Any help would be appreciated.

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  • Creating multiple objects of a view defined in the xml

    - by user362953
    I have to dynamically add a list of views (the views use RelativeLayout). Can I do this by specifying the view definition in xml and instantiate multiple objects off it? This gives the usual benefits of separating the view part from the code (for e.g., making it easy for the UI guys to alter things) or Is going the ArrayAdapter the suggested/only route?

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  • Video Recording Not Working in ICS

    - by Nirav Ranpara
    I have implement code Record video in Android Phone . This code is working in 2.2 , 2.3 . not in ICS But when I checked in ICS code is not working ? here I posted code and xml file. videorecord.java import java.io.File; import java.io.IOException; import android.app.Activity; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.hardware.Camera; import android.media.CamcorderProfile; import android.media.MediaRecorder; import android.os.Bundle; import android.os.CountDownTimer; import android.os.Environment; import android.util.Log; import android.view.Display; import android.view.KeyEvent; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; public class videorecord extends Activity{ SharedPreferences.Editor pre; String filename; CountDownTimer t; private Camera myCamera; private MyCameraSurfaceView myCameraSurfaceView; private MediaRecorder mediaRecorder; Integer cnt=0; LinearLayout myButton; TextView myButton1; SurfaceHolder surfaceHolder; boolean recording; private TextView txtcount; private ImageView btnplay; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); recording = false; setContentView(R.layout.videorecord); init(); myCamera = getCameraInstance(); if(myCamera == null){ } myCameraSurfaceView = new MyCameraSurfaceView(this, myCamera); FrameLayout myCameraPreview = (FrameLayout)findViewById(R.id.videoview); Display display = getWindowManager().getDefaultDisplay(); int width = display.getWidth(); int height = display.getHeight(); myCameraSurfaceView.setLayoutParams(new LinearLayout.LayoutParams(width, height-60)); myCameraPreview.addView(myCameraSurfaceView); myButton = (LinearLayout)findViewById(R.id.mybutton); btnplay.setOnClickListener(myButtonOnClickListener); } private void init() { txtcount = (TextView) findViewById(R.id.txtcounter); //myButton1 = (TextView) findViewById(R.id.mybutton1); btnplay = (ImageView)findViewById(R.id.btnplay); t = new CountDownTimer( Long.MAX_VALUE , 1000) { @Override public void onTick(long millisUntilFinished) { cnt++; String time = new Integer(cnt).toString(); long millis = cnt; int seconds = (int) (millis / 60); int minutes = seconds / 60; seconds = seconds % 60; txtcount.setText(String.format("%d:%02d:%02d", minutes, seconds,millis)); } @Override public void onFinish() { } }; } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if ((keyCode == KeyEvent.KEYCODE_BACK)) { if(recording) { new AlertDialog.Builder(videorecord.this).setTitle("Do you want to save Video ?") .setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { filename(); //finish(); } }).setNegativeButton("Cancle", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }).show(); } else { if ((keyCode == KeyEvent.KEYCODE_BACK)) { //Intent homeIntent= new Intent(Intent.ACTION_MAIN); //homeIntent.addCategory(Intent.CATEGORY_HOME); //homeIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); //startActivity(homeIntent); //this.finishActivity(1); finish(); } //moveTaskToBack(true); // finish(); return super.onKeyDown(keyCode, event); } } else { // Toast.makeText(getApplicationContext(), "asd", Toast.LENGTH_LONG).show(); android.os.Process.killProcess(android.os.Process.myPid()) ; } return super.onKeyDown(keyCode, event); } ImageView.OnClickListener myButtonOnClickListener = new ImageView.OnClickListener(){ public void onClick(View v) { if(recording){ Log.e("Record error", "error in recording ."); mediaRecorder.stop(); t.cancel(); filename(); releaseMediaRecorder(); }else{ releaseCamera(); Log.e("Record Stop error", "error in recording ."); // if(!prepareMediaRecorder()){ prepareMediaRecorder(); finish(); } mediaRecorder.start(); recording = true; // myButton1.setText("STOP Recording"); // btnplay.setImageResource(android.R.drawable.ic_media_pause); btnplay.setImageResource(R.drawable.stoprec); t.start(); } }}; private Camera getCameraInstance(){ Camera c = null; try { c = Camera.open(); } catch (Exception e){ } return c; } private void filename() { AlertDialog.Builder alert = new AlertDialog.Builder(this); alert.setTitle("Save Video"); alert.setMessage("Enter File Name"); final EditText input = new EditText(this); alert.setView(input); alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { if(input.getText().length()>=1) { filename = input.getText().toString(); File sdcard = new File(Environment.getExternalStorageDirectory() + "/VideoRecord"); File from = new File(sdcard,"null.mp4"); File to = new File(sdcard,filename+".mp4"); from.renameTo(to); SharedPreferences sp = videorecord.this.getSharedPreferences("data", MODE_WORLD_WRITEABLE); pre = sp.edit(); pre.clear(); pre.commit(); pre.putString("lastvideo", filename+".mp4"); pre.commit(); //btnplay.setImageResource(android.R.drawable.ic_media_play); btnplay.setImageResource(R.drawable.startrec); // Intent intent = new Intent(videorecord.this,StopVidoWatch_Activity.class); // startActivity(intent); Intent myIntent = new Intent(getApplicationContext(), StopVidoWatch_Activity.class).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(myIntent); } else { filename(); } } }); alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { // Intent intent = new Intent(videorecord.this,StopVidoWatch_Activity.class); // startActivity(intent); File file = new File(Environment.getExternalStorageDirectory() + "/VideoRecord/null.mp4"); //boolean deleted = file.delete(); file.delete(); finish(); } }); alert.show(); } private boolean prepareMediaRecorder(){ myCamera = getCameraInstance(); mediaRecorder = new MediaRecorder(); myCamera.unlock(); mediaRecorder.setCamera(myCamera); mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER); mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); mediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH)); File folder = new File(Environment.getExternalStorageDirectory() + "/VideoRecord"); boolean success = false; if (!folder.exists()) { success = folder.mkdir(); } if (!success) { } else { } mediaRecorder.setOutputFile("/sdcard/VideoRecord/"+filename+".mp4"); mediaRecorder.setMaxDuration(60000); mediaRecorder.setMaxFileSize(5000000); Display display = getWindowManager().getDefaultDisplay(); int width = display.getHeight(); int height = display.getWidth(); String s = new String(); s= s.valueOf(width); String s1 = new String(); s1= s1.valueOf(height); // Toast.makeText(videorecord.this, "Width : " + s , Toast.LENGTH_LONG).show(); // Toast.makeText(videorecord.this, "Height : " + s1 , Toast.LENGTH_LONG).show(); mediaRecorder.setVideoSize(height, width); mediaRecorder.setPreviewDisplay(myCameraSurfaceView.getHolder().getSurface()); try { mediaRecorder.prepare(); } catch (IllegalStateException e) { releaseMediaRecorder(); return false; } catch (IOException e) { releaseMediaRecorder(); return false; } return true; } @Override protected void onPause() { super.onPause(); releaseMediaRecorder(); releaseCamera(); } private void releaseMediaRecorder() { if (mediaRecorder != null) { mediaRecorder.reset(); mediaRecorder.release(); mediaRecorder = null; myCamera.lock(); } } private void releaseCamera(){ if (myCamera != null){ myCamera.release(); myCamera = null; } } public class MyCameraSurfaceView extends SurfaceView implements SurfaceHolder.Callback{ private SurfaceHolder mHolder; private Camera mCamera; public MyCameraSurfaceView(Context context, Camera camera) { super(context); mCamera = camera; mHolder = getHolder(); mHolder.addCallback(this); mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } public void surfaceChanged(SurfaceHolder holder, int format, int weight, int height) { if (mHolder.getSurface() == null){ return; } try { mCamera.stopPreview(); } catch (Exception e){ } try { mCamera.setPreviewDisplay(mHolder); mCamera.startPreview(); } catch (Exception e){ } } public void surfaceCreated(SurfaceHolder holder) { try { mCamera.setPreviewDisplay(holder); mCamera.startPreview(); } catch (IOException e) { } } public void surfaceDestroyed(SurfaceHolder holder) { } } } videorecord.xml <?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" > <FrameLayout android:layout_width="fill_parent" android:layout_height="fill_parent" > <FrameLayout android:id="@+id/videoview" android:layout_width="fill_parent" android:layout_height="fill_parent"></FrameLayout> <LinearLayout android:id="@+id/mybutton" android:layout_width="fill_parent" android:layout_marginBottom="0dip" android:layout_height="wrap_content" android:orientation="horizontal" android:layout_weight="0" > <!-- <TextView android:text="START Recording" android:id="@+id/mybutton1" android:layout_height="wrap_content" android:layout_width="wrap_content" style="@style/savestyle" android:layout_weight="1" android:gravity="left" > </TextView> --> <ImageView android:layout_height="wrap_content" android:id="@+id/btnplay" android:padding="5dip" android:background="#A0000000" android:textColor="#ffffffff" android:layout_width="wrap_content" android:src="@drawable/startrec" /> </LinearLayout> <TextView android:text="00:00:00" android:id="@+id/txtcounter" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="right|bottom" android:padding="5dip" android:background="#A0000000" android:textColor="#ffffffff" /> </FrameLayout> <RelativeLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@color/bgcolor" > <LinearLayout android:layout_above="@+id/mybutton" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" > </LinearLayout> </RelativeLayout> </LinearLayout>

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  • ListView items not responding to tap

    - by Justin Williams
    I'm just getting my feet wet with Android and have built a UI that contains a TabHost with three tabs. Each tab is powered by its own Activity. The first Tab contains a listview with a prepopulated set of rows and is built from a custom ArrayAdapter. The problem I'm running into is that none of the ListView rows are tappable. In other words, when I tap on them there is no orange selection. If I use the scroll ball on my Nexus One it will select, but any touch gestures don't seem to be responding. All the UI is being handled using XML files with a main.xml housing the TabHost - LinearLayout - TabWidget/FrameLayout and a nearby_activity.xml file containing my ListView UI <?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"> <TextView android:id="@+id/android:empty" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="@string/nearby_no_events" /> <ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1.0" android:choiceMode="multipleChoice" android:divider="#d9d9d9" android:dividerHeight="1px" android:cacheColorHint="#eee" /> </LinearLayout> And the relevant code from my Activity that is set to show in the selected tab. public class NearbyActivity extends ListActivity { private ArrayList<Event> m_events = null; private EventAdapter m_adapter = null; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.nearby_activity); getEvents(); this.m_adapter = new EventAdapter(this, R.layout.eventrow, m_events); setListAdapter(this.m_adapter); } private void getEvents() { m_events = new ArrayList<Event>(); for (int i = 0; i < 100 ; i++) { Event e = new Event(); e.setEventName("Event " + i); e.setVenueName("Staples Center"); e.setStartDate(new Date()); m_events.add(e); } } private class EventAdapter extends ArrayAdapter<Event> { private ArrayList<Event> items; public EventAdapter(Context context, int textViewResourceId, ArrayList<Event> items) { super(context, textViewResourceId, items); this.items = items; } @Override public View getView (int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(R.layout.eventrow, null); } Event e = items.get(position); if (e != null) { TextView nameText = (TextView)v.findViewById(R.id.eventName); TextView venueNameText = (TextView)v.findViewById(R.id.venueName); if (nameText != null) { nameText.setText(e.getEventName()); } if(venueNameText != null) { venueNameText.setText(e.getVenueName()); } } return v; } } } My listview row's are populated by an XML file as well. <?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="?android:attr/listPreferredItemHeight" android:orientation="vertical" android:padding="4dip"> <TextView android:id="@+id/eventName" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:inputType="text" android:singleLine="true" android:ellipsize="marquee" android:textSize="18sp" android:textColor="#000" /> <TextView android:id="@+id/venueName" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/eventName" android:layout_alignParentBottom="true" android:layout_marginRight="55dip" android:singleLine="true" android:ellipsize="end" android:scrollHorizontally="true" android:textSize="13sp" android:textColor="#313131" android:layout_alignWithParentIfMissing="true" android:gravity="center_vertical" /> </RelativeLayout> Thanks for any help you can offer.

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  • How do I get a Java to call data from the Internet? Where to even start??

    - by cdg
    Hello oh great wizards of all things android. I really need your help. Mostly because my little brain just doesn't know were to start. I am trying to pull data from the internet to make a widget for the home screen. I have the layout built: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/Layout" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/widget_bg_normal" android:clipChildren="false" > <TextView android:id="@+id/text_view" android:layout_width="100px" android:layout_height="wrap_content" android:paddingTop="18px" android:layout_centerHorizontal="true" android:textSize="8px" android:text="158x154 Image downloaded from the internet goes here. Needs to be updated every evening at midnight or unless the button below is pressed. Now if I could only figure out exactly how to do this, life would be good." /> <Button android:id="@+id/new_button" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Get New" android:layout_below="@+id/scroll_image" android:layout_centerHorizontal="true" android:padding="0px" android:textSize="10px" android:height="8px" android:includeFontPadding="false" /> </RelativeLayout> Got the provider xml bulit: <?xml version="1.0" encoding="utf-8"?> <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android" android:minWidth="150dip" android:minHeight="150dip" android:updatePeriodMillis="10000" android:initialLayout="@layout/widget" /> The Manifest works great. <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.dge.myandroid" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".myactivty" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <!-- Widget --> <receiver android:name=".mywidget" android:label="@string/app_name" > <intent-filter> <action android:name="android.appwidget.action.APPWIDGET_UPDATE" /> </intent-filter> <meta-data android:name="android.appwidget.widgetprovider" android:resource="@xml/widgetprovider" /> </receiver> <!-- Widget End --> </application> <uses-permission android:name="android.permission.INTERNET" /> <uses-sdk android:minSdkVersion="7" /> </manifest> The data it is calling looks something like this when it is called. It basically goes to a website that uses php to random the image: <html><body bgcolor="#000000">center> <a href="http://www.website.com" target="_blank"> <img border="0" src="http://www.webiste.com//0.gif"></a> <img src="http://www.webiste.com" style="border:none;" /> </center></body></html> But here is were I am stuck. I just don't know where to start at all. The java is so far beyond my little head that I don't know what to do. package com.dge.myandroid; import android.appwidget.AppWidgetProvider; public class mywidget extends AppWidgetProvider { } The wiki example just confused me more. I just don't know where to begin. Please help.

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  • Android: Use XML Layout for List Cell rather than Java Code Layout (Widgets)

    - by Stephen Finucane
    Hi, I'm in the process of making a music app and I'm currently working on the library functionality. I'm having some problems, however, in working with a list view (In particular, the cells). I'm trying to move from a simple textview layout in each cell that's created within java to one that uses an XML file for layout (Hence keeping the Java file mostly semantic) This is my original code for the cell layout: public View getView(int position, View convertView, ViewGroup parent) { String id = null; TextView tv = new TextView(mContext.getApplicationContext()); if (convertView == null) { music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.TITLE); musiccursor.moveToPosition(position); id = musiccursor.getString(music_column_index); music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DISPLAY_NAME); musiccursor.moveToPosition(position); id += "\n" + musiccursor.getString(music_column_index); music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Albums.ALBUM); musiccursor.moveToPosition(position); id += "\n" + musiccursor.getString(music_column_index); tv.setText(id); } else tv = (TextView) convertView; return tv; } And my new version: public View getView(int position, View convertView, ViewGroup parent) { View cellLayout = findViewById(R.id.albums_list_cell); ImageView album_art = (ImageView) findViewById(R.id.album_cover); TextView album_title = (TextView) findViewById(R.id.album_title); TextView artist_title = (TextView) findViewById(R.id.artist_title); if (convertView == null) { music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Albums.ALBUM); musiccursor.moveToPosition(position); album_title.setText(musiccursor.getString(music_column_index)); //music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DISPLAY_NAME); //musiccursor.moveToPosition(position); music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.TITLE); musiccursor.moveToPosition(position); artist_title.setText(musiccursor.getString(music_column_index)); } else{ cellLayout = (TextView) convertView; } return cellLayout; } The initialisation (done in the on create file): musiclist = (ListView) findViewById(R.id.PhoneMusicList); musiclist.setAdapter(new MusicAdapter(this)); musiclist.setOnItemClickListener(musicgridlistener); And the respective XML files: (main) <?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"> <ListView android:id="@+id/PhoneMusicList" android:layout_width="fill_parent" android:layout_height="fill_parent" /> <TextView android:id="@android:id/empty" android:layout_width="wrap_content" android:layout_height="0dip" android:layout_weight="1.0" android:text="@string/no_list_data" /> </LinearLayout> (albums_list_cell) <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/albums_list_cell" android:layout_width="wrap_content" android:layout_height="wrap_content"> <ImageView android:id="@+id/album_cover" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_width="50dip" android:layout_height="50dip" /> <TextView android:id="@+id/album_title" android:layout_toRightOf="@+id/album_cover" android:layout_alignParentTop="true" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/artist_title" android:layout_toRightOf="@+id/album_cover" android:layout_below="@+id/album_title" android:layout_width="wrap_content" android:layout_height="15dip" /> </RelativeLayout> In theory (based on the tiny bit of Android I've done so far) this should work..it doesn't though. Logcat gives me a null pointer exception at line 96 of the faulty code, which is the album_title.setText line. It could be a problem with my casting but Google tells me this is ok :D Thanks for any help and let me know if you need more info!

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  • Positioning an image inside an ImageView width max height and max width set

    - by andern
    I have an ImageView with max height and max width both set to 100. The figure below is clearly not a square, but you can use your imagination ;) Figure 1: +----------------------------------------------+ ¦ ImageView +--------------+ ¦ ¦ ¦ ¦ ¦ ¦ ¦ Actual image ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ +--------------+ ¦ +----------------------------------------------+ Anyway, If I try to set a BitMap to the ImageView that does not have a ratio of 1:1, the image is positioned like pictured in Figure 1. What I want is for the picture to be placed to the left inside the ImageView like pictured in Figure 2 below. Figure 2: +----------------------------------------------+ ¦--------------+ ¦ ¦ ¦ ¦ ¦ Actual image ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦--------------+ ¦ +----------------------------------------------+ You can see my ImageView in XML below. maxHeight, maxWidth and adjustViewBounds are set during runtime. <ImageView android:id="@+id/someImage" android:layout_alignParentLeft="true" android:layout_below="@+id/textName" android:layout_height="wrap_content" android:layout_width="wrap_content" android:paddingRight="4dp" /> This is in a RelativeLayout if it makes any difference.

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  • Android Compound Control internal click events

    - by Simon
    Hi, I'm writing a custom compound control that extends RelativeLayout. Inside this component, there is an ImageView. I add a OnClickListener to this ImageView to animate it when the user clicks on it. But when I am in an activity using this control and I add a OnClickListener on the control, this listener is never called. It only works when I remove the other listener I have on the ImageView. Does anybody knows how to "propagate" the event to the other listeners when I catch it inside the control? Thanks! PS: I would also like to know if there is an existing control that looks like the icons on the Android desktop. Like an icon with text underneath.

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  • Positioning an image inside an ImageView with max height and max width set

    - by andern
    I have an ImageView with max height and max width both set to 100. The figure below is clearly not a square, but you can use your imagination ;) Figure 1: +----------------------------------------------+ ¦ ImageView +--------------+ ¦ ¦ ¦ ¦ ¦ ¦ ¦ Actual image ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ +--------------+ ¦ +----------------------------------------------+ Anyway, If I try to set a BitMap to the ImageView that does not have a ratio of 1:1, the image is positioned like pictured in Figure 1. What I want is for the picture to be placed to the left inside the ImageView like pictured in Figure 2 below. Figure 2: +----------------------------------------------+ ¦--------------+ ¦ ¦ ¦ ¦ ¦ Actual image ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦--------------+ ¦ +----------------------------------------------+ You can see my ImageView in XML below. maxHeight, maxWidth and adjustViewBounds are set during runtime. <ImageView android:id="@+id/someImage" android:layout_alignParentLeft="true" android:layout_below="@+id/textName" android:layout_height="wrap_content" android:layout_width="wrap_content" android:paddingRight="4dp" /> This is in a RelativeLayout if it makes any difference.

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  • Supporting multiple screen sizes with Android using ImageButtons

    - by droidy
    I've read the Android documentation: http://developer.android.com/guide/practices/screens_support.html but still have some questions. I'm trying to design a music application which basically has images of the instrument (ImageButton) that play a sound when clicked. However, I'm confused about how to have the ImageButtons scale to fit all the different screen sizes and how to position them. Which layout is best used for needing to position ImageButtons in specific locations on the screen? (i.e. cymbals on a drum set) FrameLayout, RelativeLayout? If I only really care about medium and large screens, do I need to create different resources (images) for both as well as a different XML layout to position them? I'm trying to find the simplest way to do this without having to create a separate layout XML file for positioning/size and separate image resources for each screen. Any guidance is greatly appreciated. Thanks!

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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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  • Android TranslateAnimation after scrollTo() = undrawn view

    - by user293354
    This might be a "duh" question but I'm going to go ahead and ask it anyway. I have an oversized (bigger than the screen) RelativeLayout, and I'm using swipes to start a TranslateAnimation from viewing one part of the layout to another. Say for instance the layout is two screen wide and two screens tall. After the nice animation to shift the screen, I was using View.scrollTo() to set the new position. This works fine going from the first screen (top left at 0,0) to one of the others. When I swipe to animate back to the first screen though, because the View.scrollTo() invalidated that part of the layout (I assume), that part of the layout is all black as I animate through it. I tried a couple things to get it to redraw itself after the scrollTo() but haven't had any luck, so I figured I'd ask here. thanks! joe d

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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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  • Implement date picker and time picker in button click and store in edit text boxes

    - by user3597791
    Hi I am trying to implement a date picker and time picker in button click and store in edit text boxes. I have tried numerous things but since i suck at coding I cant get any of them to work. Please find my class and xml below and i would be grateful for any help import android.app.Activity; import android.content.Intent; import android.database.Cursor; import android.graphics.BitmapFactory; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.Toast; public class NewEvent extends Activity { private static int RESULT_LOAD_IMAGE = 1; private EventHandler handler; private String picturePath = ""; private String name; private String place; private String date; private String time; private String photograph; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.new_event); handler = new EventHandler(getApplicationContext()); ImageView iv_user_photo = (ImageView) findViewById(R.id.iv_user_photo); iv_user_photo.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); startActivityForResult(intent, RESULT_LOAD_IMAGE); } }); Button btn_add = (Button) findViewById(R.id.btn_add); btn_add.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { EditText et_name = (EditText) findViewById(R.id.et_name); name = et_name.getText().toString(); EditText et_place = (EditText) findViewById(R.id.et_place); place = et_place.getText().toString(); EditText et_date = (EditText) findViewById(R.id.et_date); date = et_date.getText().toString(); EditText et_time = (EditText) findViewById(R.id.et_time); time = et_time.getText().toString(); ImageView iv_photograph = (ImageView) findViewById(R.id.iv_user_photo); photograph = picturePath; Event event = new Event(); event.setName(name); event.setPlace(place); event.setDate(date); event.setTime(time); event.setPhotograph(photograph); Boolean added = handler.addEventDetails(event); if(added){ Intent intent = new Intent(NewEvent.this, MainEvent.class); startActivity(intent); }else{ Toast.makeText(getApplicationContext(), "Event data not added. Please try again", Toast.LENGTH_LONG).show(); } } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) { Uri imageUri = data.getData(); String[] filePathColumn = { MediaStore.Images.Media.DATA }; Cursor cursor = getContentResolver().query(imageUri, filePathColumn, null, null, null); cursor.moveToFirst(); int columnIndex = cursor.getColumnIndex(filePathColumn[0]); picturePath = cursor.getString(columnIndex); cursor.close(); Here is my xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="10dp"> <TextView android:id="@+id/tv_new_event_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Add New Event" android:textAppearance="?android:attr/textAppearanceLarge" android:layout_alignParentTop="true" /> <Button android:id="@+id/btn_add" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Add Event" android:layout_alignParentBottom="true" /> <ScrollView android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@id/tv_new_event_title" android:layout_above="@id/btn_add"> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical"> <ImageView android:id="@+id/iv_user_photo" android:src="@drawable/add_user_icon" android:layout_width="100dp" android:layout_height="100dp"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Event:" /> <EditText android:id="@+id/et_name" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:inputType="text" > <requestFocus /> </EditText> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Place:" /> <EditText android:id="@+id/et_place" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:inputType="text" > <requestFocus /> </EditText> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Date:" /> <EditText android:id="@+id/et_date" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:inputType="date" /> <Button android:id="@+id/button" style="?android:attr/buttonStyleSmall" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button" /> <requestFocus /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Time:" /> <EditText android:id="@+id/et_time" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:inputType="time" /> <Button android:id="@+id/button1" style="?android:attr/buttonStyleSmall" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button1" /> <requestFocus /> </LinearLayout> </ScrollView> </RelativeLayout>

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  • Android: Where to find the RadioButton Drawable?

    - by Peterdk
    Ok, I am trying to create a custom view called CheckedRelativeLayout. It's purpose is the same as a CheckedTextView, to be able to use it in a list of items you want selected or in a Spinner. It's all working fine now, I extended RelativeLayout and implemented Checkable interface. However, I am stuck on a quite simple problem: Where can I find the Drawable that CheckedTextView and RadioButton use? I looked at the sourcecode of both, and they seem to use com.android.internal.R. Well... that's internal stuff. So I can't access it. Any way to get these Drawables or solve the problem somehow?

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  • Getting differences between WVGA800 and WVGA854 in Android Emulator

    - by Droidy
    So far I just have one XML layout file, and one drawable directory, drawable-hdpi. I first want to target the high density screens. I added a bunch of imagebuttons to a relativelayout and everything looks perfect in the WVGA800 emulator. The problem arises when I view it in the WVGA854 emulator. Not only do the imagebuttons not position the same, but the images are blurry. I used dip for the layout margins on the imagebuttons even though it shouldn't matter in this case because WVGA800 and 854 are both high density. What is the problem? Why would it look totally different on emulators that have the same density and almost have the same exact screen dimensions? Thanks!

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  • Turning a refresh ImageView into a ProgressBar

    - by Macarse
    I am doing a custom title for my android app and I want to have a refresh button like the Twitter app. I am using a RelativeLayout an my ImageView is defined by: <ImageView android:id="@+id/title_refresh" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/ic_menu_refresh" android:layout_alignParentRight="true"> </ImageView> In my Activity I have something like this: refreshView = (ImageView) findViewById(R.id.title_refresh); refreshView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { /* Make the refreshView turn into a progress bar. */ startService(new Intent(MyActivity.this, MyService.class)); } } I would like the ImageView to turn into a ProgressBar while I wait for my service to finish processing. How is the correct way to do this?

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  • Record audio via MediaRecorder

    - by Isuru Madusanka
    I am trying to record audio by MediaRecorder, and I get an error, I tried to change everything and nothing works. Last two hours I try to find the error, I used Log class too and I found out that error occurred when it call recorder.start() method. What could be the problem? public class AudioRecorderActivity extends Activity { MediaRecorder recorder; File audioFile = null; private static final String TAG = "AudioRecorderActivity"; private View startButton; private View stopButton; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); startButton = findViewById(R.id.start); stopButton = findViewById(R.id.stop); setContentView(R.layout.main); } public void startRecording(View view) throws IOException{ startButton.setEnabled(false); stopButton.setEnabled(true); File sampleDir = Environment.getExternalStorageDirectory(); try{ audioFile = File.createTempFile("sound", ".3gp", sampleDir); }catch(IOException e){ Toast.makeText(getApplicationContext(), "SD Card Access Error", Toast.LENGTH_LONG).show(); Log.e(TAG, "Sdcard access error"); return; } recorder = new MediaRecorder(); recorder.setAudioSource(MediaRecorder.AudioSource.MIC); recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); recorder.setAudioEncodingBitRate(16); recorder.setAudioSamplingRate(44100); recorder.setOutputFile(audioFile.getAbsolutePath()); recorder.prepare(); recorder.start(); } public void stopRecording(View view){ startButton.setEnabled(true); stopButton.setEnabled(false); recorder.stop(); recorder.release(); addRecordingToMediaLibrary(); } protected void addRecordingToMediaLibrary(){ ContentValues values = new ContentValues(4); long current = System.currentTimeMillis(); values.put(MediaStore.Audio.Media.TITLE, "audio" + audioFile.getName()); values.put(MediaStore.Audio.Media.DATE_ADDED, (int)(current/1000)); values.put(MediaStore.Audio.Media.MIME_TYPE, "audio/3gpp"); values.put(MediaStore.Audio.Media.DATA, audioFile.getAbsolutePath()); ContentResolver contentResolver = getContentResolver(); Uri base = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; Uri newUri = contentResolver.insert(base, values); sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, newUri)); Toast.makeText(this, "Added File" + newUri, Toast.LENGTH_LONG).show(); } } And here is the xml layout. <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/RelativeLayout1" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <Button android:id="@+id/start" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_marginTop="146dp" android:onClick="startRecording" android:text="Start Recording" /> <Button android:id="@+id/stop" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/start" android:layout_below="@+id/start" android:layout_marginTop="41dp" android:enabled="false" android:onClick="stopRecording" android:text="Stop Recording" /> </RelativeLayout> And I added permission to AndroidManifest file. <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="in.isuru.audiorecorder" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:name=".AudioRecorderActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.RECORD_AUDIO" /> </manifest> I need to record high quality audio. Thanks!

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