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  • Android return to the original position of the view after MotionEvent

    - by Kurty
    My application currently changes to another random int (View) when I let go of it (ACTION_UP) but the view stays in the same spot where I dropped it. I want it to return to the original location (the middle of the screen) when I drop it so I can repeat the process. // OnTouch and MotionEvent OnTouchListener dragt = new OnTouchListener() { public boolean onTouch(View v, MotionEvent me) { FrameLayout.LayoutParams par = (FrameLayout.LayoutParams) v.getLayoutParams(); switch (v.getId()) { case R.id.randomView: } switch(me.getAction()) { case MotionEvent.ACTION_MOVE: par.gravity = 0; par.setMargins((int)me.getRawX() - (v.getWidth())/2, (int)me.getRawY() - (v.getHeight())/2, 0, 0); v.setLayoutParams(par); break; case MotionEvent.ACTION_UP: // tallies score. score++; textScore.setText(String.valueOf(score)); // this generates the new view but the location is still the same color.setImageResource(mImageIds[rgenerator.nextInt(mImageIds.length)]); break; } return true; } };

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  • Android: Playing sound when button clicked?

    - by gazeebo
    Hi all, I'm trying to play a sound file when a button is clicked but keeps getting an error. The error is "The method create(Context, int) in the type MediaPlayer is not applicable for the arguments (new View.OnClickListener(){}, int)" Here's my code: @Override public void onClick(View v) { // TODO Auto-generated method stub Button zero = (Button)this.findViewById(R.id.btnZero); zero.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub mp = MediaPlayer.create(this, R.raw.mamacita_zero); } }); } Any help or tips would be appreciated. Thnx!

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  • How do I animate View.setVisibility(GONE)

    - by MrSnowflake
    I want to make an Animation for when a View gets it's visibility set to GONE. Instead of just dissapearing, the View should 'collapse'. I tried this with a ScaleAnimation but then the View is collapse, but the layout will only resize it's space after (or before) the Animation stops (or starts). How can I make the Animation so that, while animating, the lower Views will stay directly below the content, instead of having a blank space?

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  • Android Notification with AlarmManager, Broadcast and Service

    - by user2435829
    this is my code for menage a single notification: myActivity.java public class myActivity extends Activity { protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.mylayout); cal = Calendar.getInstance(); // it is set to 10.30 cal.set(Calendar.HOUR, 10); cal.set(Calendar.MINUTE, 30); cal.set(Calendar.SECOND, 0); long start = cal.getTimeInMillis(); if(cal.before(Calendar.getInstance())) { start += AlarmManager.INTERVAL_FIFTEEN_MINUTES; } Intent mainIntent = new Intent(this, myReceiver.class); pIntent = PendingIntent.getBroadcast(this, 0, mainIntent, PendingIntent.FLAG_UPDATE_CURRENT); AlarmManager myAlarm = (AlarmManager)getSystemService(ALARM_SERVICE); myAlarm.setRepeating(AlarmManager.RTC_WAKEUP, start, AlarmManager.INTERVAL_FIFTEEN_MINUTES, pIntent); } } myReceiver.java public class myReceiver extends BroadcastReceiver { @Override public void onReceive(Context c, Intent i) { Intent myService1 = new Intent(c, myAlarmService.class); c.startService(myService1); } } myAlarmService.java public class myAlarmService extends Service { @Override public IBinder onBind(Intent arg0) { return null; } @Override public void onCreate() { super.onCreate(); } @SuppressWarnings("deprecation") @Override public void onStart(Intent intent, int startId) { super.onStart(intent, startId); displayNotification(); } @Override public void onDestroy() { super.onDestroy(); } public void displayNotification() { Intent mainIntent = new Intent(this, myActivity.class); PendingIntent pIntent = PendingIntent.getActivity(this, 0, mainIntent, PendingIntent.FLAG_UPDATE_CURRENT); NotificationManager nm = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE); Notification.Builder builder = new Notification.Builder(this); builder.setContentIntent(pIntent) .setAutoCancel(true) .setSmallIcon(R.drawable.ic_noti) .setTicker(getString(R.string.notifmsg)) .setContentTitle(getString(R.string.app_name)) .setContentText(getString(R.string.notifmsg)); nm.notify(0, builder.build()); } } AndroidManifest.xml <uses-permission android:name="android.permission.WAKE_LOCK" /> ... ... ... <service android:name=".myAlarmService" android:enabled="true" /> <receiver android:name=".myReceiver"/> IF the time has NOT past yet everything works perfectly. The notification appears when it must appear. BUT if the time HAS past (let's assume it is 10.31 AM) the notification fires every time... when I close and re-open the app, when I click on the notification... it has a really strange behavior. I can't figure out what's wrong in it. Can you help me please (and explain why, if you find a solution), thanks in advance :)

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  • Does the Quick Search Box search the database in Android? how?

    - by Praveen Chandrasekaran
    i have an database with the values of latitude and longitude. i would need to search those values depends on the user input. does the quick search box can search only the database value with the type-to-search feature. Else i want to put a separate EditText and then do the the search process.. if QSB is possible then how to do that? i want to search and drop a pin on the map.. please make a note of it. Any Idea, tutorial and sample codes are most thankful?

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  • How to justify text on a TextView made easy- Android

    - by Juan
    I'm looking for a simple way to forget that I'm using a WebView to have justified text in my TextView. Has someone made a custom view for this? I'm well aware that I can do something like this: WebView view = new WebView(this); view.loadData("my html with text justification","text/html","utf-8"); But it gets ugly when you want to set the size, the color or other common properties of the TextView, there must be a more convenient way of doing it.

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  • how do i keep the aspect ratio on image buttons in android?

    - by clayton33
    i have 5 square ImageButtons that i want to have lined up side by side on the bottom of the screen. I have each one set (different id's) as: <ImageButton android:id="@+id/box1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="center" android:adjustViewBounds="true" android:scaleType="fitXY" android:layout_weight="1" android:layout_margin="1dp" /> and i have the background assigned in main java like this: int[] imageIds = new int[] {R.id.box1,R.id.box2,R.id.box3,R.id.box4,R.id.box5}; for(int i = 0; i<5; i++){ imageButtons[i] = (ImageButton) findViewById(imageIds[i]); imageButtons[i].setBackgroundResource(R.drawable.blank); } what i would like to have it do is scale the width to fit neatly side-by-side at the bottom of the screen (which it does now ok), but have the height automatically scale to match the width as well. is this possible? i don't want to use setImageSource because then it puts a border around the imagebutton.

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  • why does .apk is not getting installed in android emulator ?

    - by Saravana
    I tried the following code with android 2.3.3 (AVD). When i run this code it waits saying Waiting for HOME ('android.process.acore') to be launched... but keeps on waiting. So i tried running second time .. this time it says [2011-03-04 12:28:39 - DialANumber] Uploading DialANumber.apk onto device 'emulator-5554' [2011-03-04 12:28:39 - DialANumber] Installing DialANumber.apk... [2011-03-04 12:29:14 - DialANumber] HOME is up on device 'emulator-5554' [2011-03-04 12:29:14 - DialANumber] Uploading DialANumber.apk onto device 'emulator-5554' [2011-03-04 12:29:14 - DialANumber] Installing DialANumber.apk... and after some time fails with [2011-03-04 12:31:37 - DialANumber] Failed to install DialANumber.apk on device 'emulator-5554! [2011-03-04 12:31:37 - DialANumber] (null) [2011-03-04 12:31:39 - DialANumber] Launch canceled! the code follows: package com.DialANumber; import android.app.Activity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.KeyEvent; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.LinearLayout; public class DialANumber extends Activity { EditText mEditText_number = null; LinearLayout mLinearLayout_no_button = null; Button mButton_dial = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mLinearLayout_no_button = new LinearLayout(this); mEditText_number = new EditText(this); mEditText_number.setText("5551222"); mLinearLayout_no_button.addView(mEditText_number); mButton_dial = new Button(this); mButton_dial.setText("Dial!"); mLinearLayout_no_button.addView(mButton_dial); mButton_dial.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { performDial(); } }); setContentView(mLinearLayout_no_button); } public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_CALL) { performDial(); return true; } return false; } public void performDial(){ if(mEditText_number!=null){ try { startActivity(new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + mEditText_number.getText()))); } catch (Exception e) { e.printStackTrace(); } }//if } } I am just starting to learn developing android apps. please help me out.. Thanks.

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  • Can we use preferences accress multiple different acvtivities in android?

    - by Maneesh
    I save preferences in one activities but not able to get saved preferences in other activity. I can access saved preferences in the same activity but not in other one. It is not giving me any error but always gibing null values in second activity. Below is the code: First Activity: SharedPreferences.Editor editor; editor.putString("token", access_token); editor.commit(); Second Activity: SharedPreferences prefs = getSharedPreferences(PREFS_NAME, 0);//getPreferences(0); String restoredtoken = prefs.getString("token", null); if (restoredtoken== null) { ///doing some task; }

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  • Android : List View or SPinner

    - by Ram
    Team, I would like to know how to display a List View or SPinner using key and value pairs in Android platform. For example take Contacts Contact has id, First Name, LastName, i would like to display First Name and Last Name in the list view or in the spinner, id1, lastname1, firstname1 id2, lastname2, firstname2 id3, lastname3, firstname3 Once the user selected any value in the List view or spin list, I need to get the key value from the List view or spinner. How to do it? Any help or examples is greatly appreciated. Thanks, Ramesh

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  • How to run an async task afor every x mins in android?

    - by Shan
    how to run the async task at specific time? (I want to run it every 2 mins) I tried using post delayed but it's not working? tvData.postDelayed(new Runnable(){ @Override public void run() { readWebpage(); }}, 100); In the above code readwebpage is function which calls the async task for me.. Right now below is the method which I am using public void onCreate(Bundle savedInstanceState) { readwebapage(); } public void readWebpage() { DownloadWebPageTask task = new DownloadWebPageTask(); task.execute("http://www.google.com"); } private class DownloadWebPageTask extends AsyncTask<String, Void, String> { @Override protected String doInBackground(String... urls) { String response1 = ""; response1=read(); //read is my another function which does the real work response1=read(); super.onPostExecute(response1); return response1; } protected void onPostExecute(String result) { try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } TextView tvData = (TextView) findViewById(R.id.TextView01); tvData.setText(result); DownloadWebPageTask task = new DownloadWebPageTask(); task.execute(new String[] { "http://www.google.com" }); } } This is what I my code is and it works perfectly fine but the big problem I drains my battery?

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  • Android OnKeyListener

    - by user346665
    Why I can't implement OnKeyListener with parameter View such as on example where parameters are (View v, int keyCode, KeyEvent event) I'm forced to use parameters (DialogInterface dialog, int keyCode, KeyEvent event) but not the View as I want.

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  • how to control the width and height of default alert dialog in Android?

    - by sat
    AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("Title"); builder.setItems(items, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int item) { Toast.makeText(getApplicationContext(), items[item], Toast.LENGTH_SHORT).show(); } }); AlertDialog alert = builder.create(); I am using above code to show alert dialog , By default it fills the screen in width and wrap_content in height. How to control the width and height of default alert dialog ? I tried , alert.getWindow().setLayout(100,100); // It dint work. How to get the layout params on the alert window and set manually the width and height ?

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  • Android layouts within layouts, with separate classes handling their input?

    - by Demonofloom
    Hey all, I have created a program in Java that uses Jpanels within Jpanels. One example of this is having a side view containing buttons that change the main view when pressed. The main view also has buttons that can be used to alter itself. I am trying to re-create this on the android. I have my layout set up from an xml, with a side panel containing buttons and the main view. There is another xml that contains what I want in the main view. Now I am struggling to get this separate xml to be displayed in the main view and can’t figure out how I would get the class to handle its own input. I don’t want to paste the code into the main.xml as I want to keep things object orientated and each view needs some custom elements such as different textviews. An example of what I am trying to convert for the android is below:- //The ViewInt class has its own layout ViewInt tempView = new ViewInt(i, mFloorNo); //The viewInt class is then added to the main window. mainWindowPanel.add(tempView); This small bit of code would create a view, add it to the main view and then any input in the main window is handled by that class, but at the same time any input not in this main window is handled by another class (probably the root class). Any help is greatly appreciated, thanks. To clarify: The program has a side panel layout, containing buttons. And a main view layout that is empty. I am trying to set a .xml layout to this main view layout, and have it so that if any buttons are pressed in that main view then a class for that layout will handle it.

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  • Taking screen shot of a SurfaceView in android

    - by Mostafa Imran
    I am using following method to taking screen shot of a particular view which is a SurfaceView. public void takeScreenShot(View surface_view){ // create bitmap screen capture Bitmap bitmap; View v1 = surface_view; v1.setDrawingCacheEnabled(true); bitmap = Bitmap.createBitmap(v1.getDrawingCache()); v1.setDrawingCacheEnabled(false); ByteArrayOutputStream bos = new ByteArrayOutputStream(); bitmap.compress(CompressFormat.PNG, 0, bos); byte[] imageData = bos.toByteArray(); } the problem is its giving me the whole activity screen image. But I need to take screen shot of the particular view. I tried other ways but those give me a black screen as screen shot, some posts says that it requires rooted device. Can any one help me please. I'm in need of this solution. Help me....

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  • measuring a view before rendering it

    - by nourdine
    hello I need to find out how big a view will be after attaching it to its parent. I have overridden this method: onMeasure(int, int); but it looks like this method is invoked only when I actually add my custom view to it's container using: addView(myView); Do you think there is a way to get this information before rendering the view itself? Basically I need to know the actuall size before attaching it and not attach the view at all if it would take more certain amount of space. anybody?

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