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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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  • 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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  • 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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  • 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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  • 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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  • 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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  • How to add ListView to MapView from the xml resource ?

    - by user164589
    Hi guys. How to add ListView to MapView from the xml resource ? In order words, I am trying to make a screen contains google MapView and ListView. Because impossible to extends 2 Activitys' (ListActivity & MapActvity), I am trying to add a ListView(It is created from xml resource) to MapView. Thanks in advance.

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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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  • 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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  • 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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  • 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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  • TextColor not showing when row backgroundcolor set

    - by RuAware
    if my row is colored red the text wont set to green and bold italic. When debugging I can see it telling the TextView to set each textViews setting. Thanks TableRow row = new TableRow(getContext()); row.setLayoutParams(new TableRow.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); String[] items = list.get(l).split(":"); for(int i=0; i < items.length; i++){ //see if i need to colour row if(items[i].startsWith("colorme_") == true) { if (items[i].substring(8).equals("red") == true) { row.setBackgroundColor(Color.RED); } } else { //create a temp textview then add to row TextView tempTV = new TextView(getContext()); tempTV.setText(items[i].toString()); //test against correct answers and colour text view green if correct if (correctAnswers != null && correctAnswers.size() > i) { if (correctAnswers.get(i).equals(items[i].toString()) == true) { tempTV.setTextColor(Color.GREEN); tempTV.setTypeface(null, Typeface.BOLD_ITALIC); } } row.addView(tempTV,lpTextView); } } //add the row tempTable.addView(row);

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  • How to query an .NET assembly's required framework (not CLR) version?

    - by Bonfire Burns
    Hi, we are using some kind of plug-in architecture in one of our products (based on .NET). We have to consider our customers or even 3rd party devs writing plug-ins for the product. The plug-ins will be .NET assemblies that are loaded by our product at run-time. We have no control about the quality or capabilities of the external plug-ins (apart from checking whether they implement the correct interfaces). So we need to implement some kind of safety check while loading the plug-ins to make sure that our product (and the hosting environment) can actually host the plug-in or deliver a meaningful error message ("The plug-in your are loading needs .NET version 42.42 - the hosting system is only on version 33.33."). Ideally the plug-ins would do this check internally, but our experience regarding their competence is so-so and in any case our product will get the blame, so we want to make sure that this "just works". Requiring the plug-in developers to provide the info in the metadata or to explicitly provide the information in the interface is considered "too complicated". I know about the Assembly.ImageRuntimeVersion property. But to my knowledge this tells me only the needed CLR version, not the framework version. And I don't want to check all of the assembly's dependencies and match them against a table of "framework version vs. available assemblies". Do you have any ideas how to solve this in a simple and maintainable fashion? Thanks & regards, Bon

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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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  • NullPointerException on TextView

    - by Stephen Adipradhana
    i get a null pointer exception and the program crash on each time i want to update the highscore text using setText(). what causes this problem? this code is when i set my layout, the layout is a part of the gameView using opengl, and i put the highscore textview on the upper left corner public void onCreate(Bundle savedInstanceState) { SFEngine.display = ((WindowManager)getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();//ambl ukuran width height layar super.onCreate(savedInstanceState); gameView = new SFGameView(this); gameView.setLayoutParams(new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); RelativeLayout layout = new RelativeLayout(this); layout.setLayoutParams(new FrameLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); TextView textBox = new TextView(this); textBox.setId(1); textBox.setText("HIGH SCORE"); textBox.setBackgroundColor(Color.BLUE); textBox.setWidth(SFEngine.display.getWidth()/2); textBox.setHeight(50); Button pauseButton = new Button(this); pauseButton.setText("PAUSE"); pauseButton.setHeight(50); pauseButton.setWidth(SFEngine.display.getWidth()/2); pauseButton.setOnTouchListener(new OnTouchListener(){ public boolean onTouch(View v, MotionEvent e) { //pause game SFEngine.isPlaying = false; Intent i1 = new Intent(SFGames.this, pause.class); gameView.onPause(); startActivityForResult(i1,0);//hrs pk result soalny mw blk lg return true; } }); RelativeLayout.LayoutParams lp_pause = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); RelativeLayout.LayoutParams lp_hs = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); lp_hs.addRule(RelativeLayout.ALIGN_PARENT_LEFT); lp_pause.addRule(RelativeLayout.ALIGN_PARENT_TOP); lp_pause.addRule(RelativeLayout.ALIGN_PARENT_RIGHT); textBox.setLayoutParams(lp_hs); pauseButton.setLayoutParams(lp_pause); layout.addView(gameView); layout.addView(textBox); layout.addView(pauseButton); setContentView(layout); and here is the setText code public boolean onTouchEvent (MotionEvent event){//buat nerima input user if(!SFEngine.isPlaying){ finish(); } textBox.setText("High Score :" + SFEngine.score);//here is the source of the prob .....

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  • inflate vs findViewById

    - by Cedric
    Hi all, Suppose I have a simple layout xml like the following: button.xml: Are there any differences in the following calls? and which one should i use? button = (Button) getLayoutInflater().inflate(R.layout.button, null); and View v = getLayoutInflater().inflate(R.layout.button, null); button = (Button) v.findViewById(R.id.button01);

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  • BroadcastReciever doesn't show SMS not Send or Not delivered

    - by user1657111
    While using broadcastreciver for checking sms status, it shows the toast when sms is sent but shows nothing when sms is not sent or delivered (im testing it by putting an abrupt number). the code im using is the one ive seen the most on every site of checking sms delivery status. But my code is only showing the status when sms is sent successfully. Can any one get a hint of what am i doing wrong ? I hav this method in doInBackground() and so obviously im using AsyncTask. Thanks guys public void send_SMS(String list, String msg, AtaskClass task) { String SENT = "SMS_SENT"; String DELIVERED = "SMS_DELIVERED"; SmsManager sms = SmsManager.getDefault(); PendingIntent sentPI = PendingIntent.getBroadcast(this, 0, new Intent(SENT), 0); PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0, new Intent(DELIVERED), 0); //---when the SMS has been sent--- registerReceiver(new BroadcastReceiver(){ @Override public void onReceive(Context context, Intent arg1) { switch (getResultCode()) { case Activity.RESULT_OK: Toast.makeText(context, "SMS sent", Toast.LENGTH_SHORT).show(); break; case SmsManager.RESULT_ERROR_GENERIC_FAILURE: Toast.makeText(context, "Generic failure", Toast.LENGTH_SHORT).show(); break; case SmsManager.RESULT_ERROR_NO_SERVICE: Toast.makeText(context, "No service", Toast.LENGTH_SHORT).show(); break; case SmsManager.RESULT_ERROR_NULL_PDU: Toast.makeText(context, "Null PDU", Toast.LENGTH_SHORT).show(); break; case SmsManager.RESULT_ERROR_RADIO_OFF: Toast.makeText(context, "Radio off", Toast.LENGTH_SHORT).show(); break; } } }, new IntentFilter(SENT)); //---when the SMS has been delivered--- registerReceiver(new BroadcastReceiver(){ @Override public void onReceive(Context context, Intent arg1) { switch (getResultCode()) { case Activity.RESULT_OK: Toast.makeText(context, "SMS delivered", Toast.LENGTH_SHORT).show(); break; case Activity.RESULT_CANCELED: Toast.makeText(context, "SMS not delivered", Toast.LENGTH_SHORT).show(); break; } } }, new IntentFilter(DELIVERED)); StringTokenizer st = new StringTokenizer(list,","); int count= st.countTokens(); int i =1; count = 1; while(st.hasMoreElements()) { // PendingIntent pi = PendingIntent.getActivity(this,0,new Intent(this, SMS.class),0); String tempMobileNumber = (String)st.nextElement(); //SmsManager sms = SmsManager.getDefault(); sms.sendTextMessage(tempMobileNumber, null, msg , sentPI, deliveredPI); Double cCom = ((double)i/count) * 100; int j = cCom.intValue(); task.doProgress(j); i++; count ++; } // class ends }

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  • how to draw a Bitmap to a Canvas with a variable alpha

    - by steelbytes
    Hi, I'm trying to draw a Bitmap to a Canvas with a variable amount of alpha. But I only get nothing (when alpha<255) or the 'full' bitmap (when alpha==255). Have also tried loading as a Drawable, and using drawable.setAlpha, but that gave the same result. my init BitmapFactory.Options opts = new BitmapFactory.Options(); opts.inScaled = false; opts.inSampleSize = 1; Bitmap img = BitmapFactory.decodeResource(getResources(),R.drawable.sample,opts); my onDraw() Paint p = new Paint(Paint.ANTI_ALIAS_FLAG|Paint.FILTER_BITMAP_FLAG); p.setColor((alpha<<24)+0xffffff); // alpha in range 0..255 canvas.drawBitmap(img, null, imgRect, p);

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  • How to handle feedback from background threads if the user uses the back button?

    - by Janusz
    I have the following problem: I have an Activity where a user can start a web search showing a new activity to show a progress bar until the results are shown. Now the user can either wait for the results or maybe think about the search parameters, hit the back button and triggering a new search. The search is running in an Async Task and therefor still running if the user hits back. At the moment the thread finishes it calls some methods on the old activity causing the activity to show a dialog. This causes the system to crash because the dialog tries to show itself with a reference to an activity that is not longer present on the screen. How can I achieve a dialog that is only shown if the activity is still active?

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