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  • Notify a content resolver when normal sql insert or update

    - by user1400538
    I have created a small content provider (which I only use to query a db table and fetch some value). I have confirmed that the provider works fine. The table values get updated on a regular basis through normal sql insertions(and not through anycontent provider) Whenever an insert/update or delete occurs through a normal sqlite operation as mentioned above, I need to notify the content resolvers which was written to communicate with the content provider just for quering database and fetch some values. Is this, possible? If yes what need to be done? Any help is appreciated.

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

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

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  • Sqllite doesn' write a column

    - by user1904675
    I do this: DatabaseHelper dbHelper = new DatabaseHelper(context); dbHelper.getWritableDatabase(); String sql = "insert into "+getTableName()+("+DatabaseHelper.PRODUCT_MARK+","+DatabaseHelper.PRODUCT_NAME+") VALUES ('"+input.getMark()+"','"+input.getName()+"')"; System.out.println(sql); getDatabase().execSQL(sql); dbHelper.close(); The system print 12-14 16:53:33.857: I/System.out(1350): insert into product (pMark,name) VALUES ('aaaaa ','zz') But when I read from db the property mark is not valorized... Where is my mistake?

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  • sort date fields to obtain earliest date

    - by manu
    in my database , dates are stored in DD-mm-yyyy format , how can i sort this to obtain the earliest date ? Cursor c = myDb.query(TABLE, new String[]{"dob"}, null, null, null, null, "dob"); I have selected it to order by dob field but its not ordered ... This is the output for the above query 01-03 17:14:51.595: VERBOSE/ORDER DOB(1431): 01-11-1977 01-03 17:14:51.595: VERBOSE/ORDER DOB(1431): 01-12-1988 01-03 17:14:51.614: VERBOSE/ORDER DOB(1431): 15-01-1977 01-03 17:14:51.656: VERBOSE/ORDER DOB(1431): 31-01-1988

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  • AudioRecord - empty buffer

    - by Arxas
    I' m trying to record some audio using AudioRecord class. Here is my code: int audioSource = AudioSource.MIC; int sampleRateInHz = 44100; int channelConfig = AudioFormat.CHANNEL_IN_MONO; int audioFormat = AudioFormat.ENCODING_PCM_16BIT; int bufferSizeInShorts = 44100; int bufferSizeInBytes = 2*bufferSizeInShorts; short Data[] = new short[bufferSizeInShorts]; Thread recordingThread; AudioRecord audioRecorder = new AudioRecord(audioSource, sampleRateInHz, channelConfig, audioFormat, bufferSizeInBytes); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } public void startRecording(View arg0) { audioRecorder.startRecording(); recordingThread = new Thread(new Runnable() { public void run() { while (Data[bufferSizeInShorts-1] == 0) audioRecorder.read(Data, 0, bufferSizeInShorts); } }); audioRecorder.stop(); } Unfortunately my short array is empty after the recording is over. May I kindly ask you to help me figure out what's wrong?

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  • How can I make image opaque to some level?

    - by Nikki
    hello everyone....... I would like to know if I can make an image opaque if set in image view or set as background of relative layout. How ca I make image opaque using image view or relative layout for setting the image dynamically or Is there any other option to set image and its opacity dynamically? I also want the same image to rotate in both directions and also can zoomin and zoomout to anylevel. Thanks in advance

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  • AsyncTask never finishes when other tasks are running

    - by rebeccamaher
    In my app, I show a menu screen immediately to the user and then use an AsyncTask to load some data from disk. Loading takes about 3 seconds if that's all the app had to do. When the user hits a menu option and the data hasn't loaded yet, a "Please wait, loading" screen appears. I have two problems: I recently added ads to my app and have found this is making my app hang sometimes because the AsyncTask never finishes loading. What seems to be happening is that the ad banner (I'm using admob and this happens when adsense ads are shown which admob do occasionally) is using resources by playing a simple animation and the AsyncTask never gets a chance to finish. I want to play a simple looping animation (e.g. making a view rotate) on my menu screen and this makes the AsyncTask take about 5 times longer to finish which renders the background loading pointless. How can I avoid situations where my background data never finishes loading or has such a low priority it takes a long time? I can't seem to find a way to increase the priority of an AsyncTask.

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  • Bitmap size exceeds VM budget after second load

    - by jonny
    This is driving me crazy. I have a game which has a bitmap as the background, this is big so I scale it down and this works fine. However when I navigate to another activity and then reload the game screen it crashes on drawing the background. I am calling recycle on all the bitmaps and setting them to null on onDestroy() but this doesn't help. Any ideas and if not how can I debug the memory to see at which step its growing. I looked at getting the heap but nothing of any size is on there really. Thanks.

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  • Use layout_alignBaseline with Spinner

    - by Maxim
    Hello everybody, I've noticed that layout_alignBaseline of TextVew control doesn't work with Spinner control. I'm trying to place a text to the left of spinner, but it goes to the top of the parent control. Is it a bug or I do something wrong. The same technique works fine with EditText controls.

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  • Problems with starting an activity in onStart

    - by Fizz
    Hello everyone. I'm trying to start a floating activity from onStart to retrieve some info from the user right when the initial activity begins. I have the following: @Override public void onStart(){ super.onStart(); callProfileDialog(); } And callProfileDialog() is just: private void callProfileDialog(){ Intent i = new Intent(this, com.utility.ProfileDialog.class); startActivityForResult(i, PROFDIALOG); } ProfileDialog.class returns a String from an input box. If the result returned is RESULT_CANCELED then I restart the activity. The problem I'm having is that when the program starts, the screen is just black. If I hit the Back button a RESULT_CANCELED is returned then the initial activity shows as well as the floating activity (since it recalled itself when it got a RESULT_CANCELED). Why can't I get the activities show by calling ProfileDialog.class from onStart()? I got the same result when I called it at the end of onCreate() which is way I switch over to use onStart(). Thanks for the help.

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  • Activity ignore intent's extra fields

    - by ced
    For example, In an ActivityA there's a button to create an Intent that will start ActivityB in a new task, like this: Intent i = new Intent(this, ActivityB.class); i.setData(Uri.parse("http://www.google.com")); long timestamp = System.currentTimeMillis(); i.putExtra("ts", timestamp); i.addFlag(Intent.FLAG_ACTIVITY_NEW_TASK); Log.d(TAG, "Sending: " + timestamp); startActivity(i); Then in ActivityB's onResume() method, there's this code to check the timestamp: long timestamp = getIntent().getExtras().getLong("ts"); Log.d(TAG, "Receiving: " + timestamp); Now the first time I invoke ActivityB from ActivityA I get the following logs: Sending: 120006000 Receiving: 120006000 Then if I left ActivityB running in the background (by pressing Home button), and start ActivityA then invoke ActivityB again, the following is printed: Sending: 120013000 Receiving: 120006000 It seems although ActivityB is brought to front by the new Intent. The extra field in the intent is being left behind. Is this a bug or an intended behavior?

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  • ExpandableListView.setAdapter() throws IllegalStateException

    - by vijay
    I am getting the following exception: java.lang.IllegalStateException: get field slot from row 0 col -1 failed when I call setAdapter() on my ExpandableListView. Can someone please help me fix this problem? (I have already wasted 2 days :( ) Cursor mCursor = tasksListCursor(); Log.i("ChronicleTaskList", "rowcount: "+mCursor.getCount()); startManagingCursor(mCursor); boolean flag = mCursor.moveToFirst(); while (flag) { // This loop executes fine. long id = mCursor.getLong(mCursor.getColumnIndexOrThrow(ChronicleDb.KEY_ID)); String name = mCursor.getString(mCursor.getColumnIndexOrThrow(ChronicleDb.KEY_NAME)); long from = mCursor.getLong(mCursor.getColumnIndexOrThrow(ChronicleDb.KEY_FROM)); long to = mCursor.getLong(mCursor.getColumnIndexOrThrow(ChronicleDb.KEY_TO)); Log.i("ChronicleTaskList", id + ", "+ name+ ", "+ from+ ", "+to); flag = mCursor.moveToNext(); } String[] grpFromCols = { ChronicleDb.KEY_NAME}; int[] grpToVals = { R.id.cGroupRowTextName }; String[] fromCols = { TasksDbAdapter.KEY_TODODATE, TasksDbAdapter.KEY_NAME }; int[] toVals = { R.id.textViewDate2, R.id.taskRowTextTask }; ChronicleTreeListAdapterSimple adapter = new ChronicleTreeListAdapterSimple(this, mCursor, R.layout.c_group_row, grpFromCols, grpToVals, R.layout.task_row2, fromCols, toVals, true); expandableListView.setAdapter(adapter); The last line throws the exception. And the Adapter looks like this: public class ChronicleTreeListAdapterSimple extends SimpleCursorTreeAdapter { protected static String TAG = "ChronicleTreeListAdapter"; public ChronicleTreeListAdapterSimple( ChronicleTaskList context, Cursor cursor, int groupLayout, String[] groupFrom, int[] groupTo, int childLayout, String[] childFrom, int[] childTo, boolean showGroupName) { super(context, cursor, groupLayout, groupFrom, groupTo, childLayout, childFrom, childTo); taskList = context; }

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  • Center text inside a circle on a canvas

    - by jax
    I have the coordinates of the center of a circle where I need to draw some text. The circle may be larger or smaller depending on the attributes I have specified. I have set the center horizontally using mTextBrush.setTextAlign(Align.CENTER);. The problem is that I can't figure out a way to center the text vertically. (See "Draw the counter" below) //Text Brush setup mTextBrush = new Paint(Paint.ANTI_ALIAS_FLAG); mTextBrush.setColor(Color.BLACK); mTextBrush.setTextSize(1/10*mMaxSize); mTextBrush.setTextAlign(Align.CENTER); mTextBrush.setStyle(Paint.Style.STROKE); private void drawSmallTimer(Canvas canvas) { //Variable cache int radiusLocalCache = this.mRadius; int cx = radiusLocalCache+(radiusLocalCache/2); int cy = radiusLocalCache-(radiusLocalCache/2); int radius = radiusLocalCache/3; //Draw the background circle canvas.drawCircle(cx, cy, radius, mBackgroundBrush); //Draw the outline stroke canvas.drawCircle(cx, cy, radius, mStrokeBrush); //Draw the counter String text = String.valueOf(mCounter); canvas.drawText(text, cx, cy, mTextBrush); }

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  • I want to retrieve check items of list view

    - by kamil
    for(int i=0;i < users.size();i++) { map = new HashMap<String, String>(); map.put("id",String.valueOf(i)); map.put("userID", String.valueOf(users.get(i).getUserId())); map.put("emailID", users.get(i).getEmailAddress()); memList.add(map); } ListAdapter adapter = new SimpleAdapter(this, memList , R.layout.member_list_view, new String[] { "emailID" },new int[] { R.id.memTextView}); memberList.setAdapter(adapter); I have to retrieve the checked items on a separate button listener. how can I? I am using a customize list view. Plz help...

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  • Get Object from memory using memory adresse

    - by Hamza Karmouda
    I want to know how to get an Object from memory, in my case a MediaRecorder. Here's my class: Mymic class: public class MyMic { MediaRecorder recorder2; File file; private Context c; public MyMic(Context context){ this.c=context; } private void stopRecord() throws IOException { recorder2.stop(); recorder2.reset(); recorder2.release(); } private void startRecord() { recorder2= new MediaRecorder(); recorder2.setAudioSource(MediaRecorder.AudioSource.MIC); recorder2.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); recorder2.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); recorder2.setOutputFile(file.getPath()); try { recorder2.prepare(); recorder2.start(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } } my Receiver Class: public class MyReceiver extends BroadcastReceiver { private Context c; private MyMic myMic; @Override public void onReceive(Context context, Intent intent) { this.c=context; myMic = new MyMic(c); if(my condition = true){ myMic.startRecord(); }else myMic.stopRecord(); } } So when I'm calling startRecord() it create a new MediaRecorder but when i instantiate my class a second time i can't retrieve my Object. Can i retrieve my MediaRecorder with his addresse

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  • odd response after INVITE request, SIP

    - by supersk
    After sending an invite request i receive a trying answer, and immidietly after that i receive error 407 proxy authentication required. After sending ack & another invite with the proxy header i receive session progress about 1/4 of the time!! other times it just sends 407 error again & again. Any ideas?

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  • I can't set main Class variable in onCreate Method

    - by natrollus
    Main class has two variables that want to reach another class: public class MyClassA extends Activity { int i = 1; Button b1; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.i = 31; this.b1 = (Button) findViewById(R.id.btn1); ~~ } } Second class want to call variables in mainClass object: public class MyclassB implements OnClickListener{ MyClassA mainClass = new MyClassA(); Button btn = mainClass.b1; int n = mainClass.i; public void OnClick(View arg0){ Log.v("btn:",btn); Log.v("int:",n); } //btn returns null; //int returns 1; But onCreate method not set variables.. Why not set main class variables like this.i=31 ?

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  • Icon backdrop on Samsung Galaxy S? how to change this?

    - by AKh
    Hi all, I see a backdrop being added to my launch icon on the Samsung Galaxy S devices. I need this backdrop changed to a custom backdrop which we created. I know this can be changed since apps like"Daily Briefing" have their own cloud like backdrop making the launch icon look really rich. If anyone does know how to change this backdrop please let me know. I am talking about the background image set behind the icons. Eg: in the below image on the 1st row can you notice the yellow backdrop for Memo app, Green backdrop for Mini Diary app, similarily in the 3rd row notice the green backdrop behind the MAIL app.... I need to change these backdrops. Thanks in advance. Appreciate your help.

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  • How to generate a ListView with headers above some sections?

    - by Janusz
    I want to generate a Listview that has some dividers between some of the entries, like it can be seen in some of the property sections. See the example below. I try to generate a List that consists of some textviews followed by one of the fancy dividers explaining the next part of the list and then again some text views. How can this be done? I thought about creating different views to add to the list? Is this the way to go?

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  • Speed/expensive of SQLite query vs. List.contains() for "in-set" icon on list rows

    - by kpdvx
    An application I'm developing requires that the app main a local list of things, let's say books, in a local "library." Users can access their local library of books and search for books using a remote web service. The app will be aware of other users of the app through this web service, and users can browse other users' lists of books in their library. Each book is identified by a unique bookId (represented as an int). When viewing books returned through a search result or when viewing another user's book library, the individual list row cells need to visually represent if the book is in the user's local library or not. A user can have at most 5,000 books in the library, stored in SQLite on the device (and synchronized with the remote web service). My question is, to determine if the book shown in the list row is in the user's library, would it be better to directly ask SQLite (via SELECT COUNT(*)...) or to maintain, in-memory, a List or int[] array of some sort containing the unique bookIds. So, on each row display do I query SQLite or check if the List or int[] array contains the unique bookId? Because the user can have at most 5,000 books, each bookId occupies 4 bytes so at most this would use ~ 20kB. In thinking about this, and in typing this out, it seems obvious to me that it would be far better for performance if I maintained a list or int[] array of in-library bookIds vs. querying SQLite (the only caveat to maintaining an int[] array is that if books are added or removed I'll need to grow or shrink the array by hand, so with this option I'll most likely use an ArrayList or Vector, though I'm not sure of the additional memory overhead of using Integer objects as opposed to primitives). Opinions, thoughts, suggestions?

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