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• Why does my performance increase when touching the screen?

  - by Smills

  For some reason my FPS jumps up considerably when I move my mouse around on the screen (on the emulator) while holding the left mouse button. Normally my game is very laggy, but if I touch the screen (and as long as I am moving the mouse around while touching) it goes perfectly smooth. I have tried sleeping for 20ms in the onTouchEvent, but it doesn't appear to make any difference. Here is the code I use in my onTouchEvent: // events when touching the screen public boolean onTouchEvent(MotionEvent event) { int eventaction = event.getAction(); touchX=event.getX(); touchY=event.getY(); switch (eventaction) { case MotionEvent.ACTION_DOWN: { touch=true; } break; case MotionEvent.ACTION_MOVE: { } break; case MotionEvent.ACTION_UP: { touch=false; } break; } /*try { AscentThread.sleep(20); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); }*/ return true; } In the logcat log, FPS is the current fps (average of the last 20 frames), touch is whether or not the screen is being touched (from onTouchEvent). What on earth is going on? Has anyone else had this odd behaviour before? Logcat log: 12-21 19:43:26.154: INFO/myActivity(786): FPS: 31.686569159606414 Touch: false 12-21 19:43:27.624: INFO/myActivity(786): FPS: 19.46310293212206 Touch: false 12-21 19:43:29.104: INFO/myActivity(786): FPS: 18.801202175690467 Touch: false 12-21 19:43:30.514: INFO/myActivity(786): FPS: 21.118295877408478 Touch: false 12-21 19:43:31.985: INFO/myActivity(786): FPS: 19.117397812958878 Touch: false 12-21 19:43:33.534: INFO/myActivity(786): FPS: 15.572571858239263 Touch: false 12-21 19:43:34.934: INFO/myActivity(786): FPS: 20.584119901503506 Touch: false 12-21 19:43:36.404: INFO/myActivity(786): FPS: 18.888025905454207 Touch: false 12-21 19:43:37.814: INFO/myActivity(786): FPS: 22.35722329083629 Touch: false 12-21 19:43:39.353: INFO/myActivity(786): FPS: 15.73604859775362 Touch: false 12-21 19:43:40.763: INFO/myActivity(786): FPS: 20.912449882754633 Touch: false 12-21 19:43:42.233: INFO/myActivity(786): FPS: 18.785278388997718 Touch: false 12-21 19:43:43.634: INFO/myActivity(786): FPS: 20.1357397209596 Touch: false 12-21 19:43:45.043: INFO/myActivity(786): FPS: 21.961138432007957 Touch: false 12-21 19:43:46.453: INFO/myActivity(786): FPS: 22.167196852834273 Touch: false 12-21 19:43:47.854: INFO/myActivity(786): FPS: 22.207318228024274 Touch: false 12-21 19:43:49.264: INFO/myActivity(786): FPS: 22.36980559230175 Touch: false 12-21 19:43:50.604: INFO/myActivity(786): FPS: 23.587638823252547 Touch: false 12-21 19:43:52.073: INFO/myActivity(786): FPS: 19.233902040593076 Touch: false 12-21 19:43:53.624: INFO/myActivity(786): FPS: 15.542190150440987 Touch: false 12-21 19:43:55.034: INFO/myActivity(786): FPS: 20.82290063974675 Touch: false 12-21 19:43:56.436: INFO/myActivity(786): FPS: 21.975282007207717 Touch: false 12-21 19:43:57.914: INFO/myActivity(786): FPS: 18.786927284103687 Touch: false 12-21 19:43:59.393: INFO/myActivity(786): FPS: 18.96879004217992 Touch: false 12-21 19:44:00.625: INFO/myActivity(786): FPS: 28.367566618064878 Touch: false 12-21 19:44:02.113: INFO/myActivity(786): FPS: 19.04441528684418 Touch: false 12-21 19:44:03.585: INFO/myActivity(786): FPS: 18.807837511809065 Touch: false 12-21 19:44:04.993: INFO/myActivity(786): FPS: 21.134330284993418 Touch: false 12-21 19:44:06.275: INFO/myActivity(786): FPS: 27.209688764079907 Touch: false 12-21 19:44:07.753: INFO/myActivity(786): FPS: 19.055894653261653 Touch: false 12-21 19:44:09.163: INFO/myActivity(786): FPS: 22.05422794901088 Touch: false 12-21 19:44:10.644: INFO/myActivity(786): FPS: 18.6956805300596 Touch: false 12-21 19:44:12.124: INFO/myActivity(786): FPS: 17.434180581311054 Touch: false 12-21 19:44:13.594: INFO/myActivity(786): FPS: 18.71932038510891 Touch: false 12-21 19:44:14.504: INFO/myActivity(786): FPS: 40.94571503868066 Touch: true 12-21 19:44:14.924: INFO/myActivity(786): FPS: 57.061200121138576 Touch: true 12-21 19:44:15.364: INFO/myActivity(786): FPS: 62.54377946377936 Touch: true 12-21 19:44:15.764: INFO/myActivity(786): FPS: 64.05005071818726 Touch: true 12-21 19:44:16.384: INFO/myActivity(786): FPS: 50.912951172948155 Touch: true 12-21 19:44:16.874: INFO/myActivity(786): FPS: 55.31242053078078 Touch: true 12-21 19:44:17.364: INFO/myActivity(786): FPS: 59.31625410615102 Touch: true 12-21 19:44:18.413: INFO/myActivity(786): FPS: 36.63504170925923 Touch: false 12-21 19:44:19.885: INFO/myActivity(786): FPS: 18.099130467755923 Touch: false 12-21 19:44:21.363: INFO/myActivity(786): FPS: 18.458978222946566 Touch: false 12-21 19:44:22.683: INFO/myActivity(786): FPS: 25.582179409330823 Touch: true 12-21 19:44:23.044: INFO/myActivity(786): FPS: 60.99865521942455 Touch: true 12-21 19:44:23.403: INFO/myActivity(786): FPS: 74.17873975470984 Touch: true 12-21 19:44:23.763: INFO/myActivity(786): FPS: 64.25663040460714 Touch: true 12-21 19:44:24.113: INFO/myActivity(786): FPS: 62.47483457826921 Touch: true 12-21 19:44:24.473: INFO/myActivity(786): FPS: 65.27969529547072 Touch: true 12-21 19:44:24.825: INFO/myActivity(786): FPS: 67.84743115273311 Touch: true 12-21 19:44:25.173: INFO/myActivity(786): FPS: 73.50854551357706 Touch: true 12-21 19:44:25.523: INFO/myActivity(786): FPS: 70.46432534585368 Touch: true 12-21 19:44:25.873: INFO/myActivity(786): FPS: 69.04076953445896 Touch: true

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• Make list from two database items

  - by unnamet

  I want to make a list from some data that I have in my database. The first two sets of data in my database are first name and last name. I want my list to show both first and last name instead of now where it only shows the first name. How do I do that? My code looks like this: private void fillData() { Cursor contactCursor = mDbHelper.fetchAllReminders(); startManagingCursor(contactCursor); String[] from = new String[]{DbAdapter.KEY_FIRST}; int[] to = new int[]{R.id.contactlist}; SimpleCursorAdapter contacts = new SimpleCursorAdapter(this, R.layout.list, contactCursor, from, to); setListAdapter(contacts); }

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• Is there a website to lookup barcodes?

  - by strange

  Hi I know there's a http://www.upcdatabase.com/ website that allows you to lookup barcodes. This website however does not return anything for thousands of normal household items. I have seen free apps on mobile phones that can do this and list the exact product name along with price comparison. Does anyone know of good websites (even commercial ones) that have a good/reliable database that one could use for lookups?

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• Sending SMS programmatically in 1.5 on CDMA device

  - by Justin

  I am developing an application that relies heavily on sending SMS programmatically. I followed the examples released after 1.6 that demonstrate how to use an abstract class to implement sending for 1.5 and 1.6+. I started getting complaints from some users about how it appears as though SMS should be sent but they are in fact not. It took be a while to realize what was going on, the one 1.5 test device I have is GSM. Of course it must be because the Sprint Hero is CDMA (running 1.5). Regardless of message size I use the general form of: divideMessage() and sendMultipartTextMessage(destinationAddress, null, parts, null, null) How can I successfully send an SMS in this case? Can I call sendTextMessage() a number of times? Also, I tried unsuccessfully to find the source for the Hero's Messenger/Conversations package or equivalent, if anyone knows where to find that that would be great.

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• pointToPosition in GridView does not work

  - by Unstoppable

  I have this code: long position = imageAdapter.getItemId (gridView.pointToPosition( (int) event.getX() (int) event.getY())); Theoretically, this code should work, but when I display information Log.d function, I always get a "0" position. What am I doing wrong? PS. The code I have implemented the method public void onMyGridTouch from this topic - Dynamically change the image color layout in a row in a GridView

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• OnFinishInflate inside ListActivity

  - by zegnus

  I have a main class filled with a cursor adapter: public class MainMenu extends ListActivity{ ... private void updateData(){ ... SimpleAdapter notes = new SimpleAdapter(this, array, R.layout.row_task, from, to); setListAdapter(notes); } } I need to know when this list has finnished to inflate it, so I've discovered this methods: ListView.onFinishInflate()... But I have no idea how to override it inside my code. Any idea?

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• AlertDialog in if-stetement doesn't show()

  - by Steffen Kern

  I have the following code: public void button_login(View view) { // Instantiate an AlertDialog.Builder with its constructor AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { /* User clicked OK button */ } }); // Preserve EditText values. EditText ET_username = (EditText) findViewById(R.id.username); EditText ET_password = (EditText) findViewById(R.id.password); String str_username = ET_username.toString(); String str_password = ET_password.toString(); // Intercept missing username and password. if(str_username.length() == 0) { builder.setMessage(R.string.hint_username_empty); AlertDialog dialog = builder.create(); dialog.show(); } } I have an activity that includes the two EditText-Views and a button. When I click the button the shown method will be called. My problem: The AlertDialog doesnt show up! When I put the create and show at beginning like this: // Instantiate an AlertDialog.Builder with its constructor AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { /* User clicked OK button */ } }); builder.setMessage(R.string.hint_username_empty); AlertDialog dialog = builder.create(); dialog.show(); // Preserve EditText values. EditText ET_username = (EditText) findViewById(R.id.username); EditText ET_password = (EditText) findViewById(R.id.password); String str_username = ET_username.toString(); String str_password = ET_password.toString(); // Intercept missing username and password. if(str_username.length() == 0) { } } Then the Dialog shows up. Any ideas why the dialog doesnt show up in the first place? Greetz, Steffen

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• How to return a result (startActivityForResult) from a TabHost Activity?

  - by pcm2a

  I have 3 classes in my example: Class A, the main activity. Class A calls a startActivityForResult: Intent intent = new Intent(this, ClassB.class); startActivityForResult(intent, "STRING"); Class B, this class is a TabActivity: Intent intent = new Intent(this, ClassC.class); tabHost.addTab... Class C, this class is a regular Activity: Intent intent = this.getIntent(); intent.putExtra("SOMETHING", "EXTRAS"); this.setResult(RESULT_OK, intent); finish(); onActivityResult is called in Class A, but the resultCode is RESULT_CANCELED instead of RESULT_OK and the returned intent is null. How do I return something from the Activity inside a TabHost? I realize that the problem is that my Class C is actually running inside of Class B, and Class B is what is returning the RESULT_CANCELED back to Class A. I just don't know a work around yet.

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• Why isn't my assets folder being installed on emulator?

  - by Brad Hein

  Where are my assets being installed to? I utilize an assets folder in my new app. I have two files in the folder. When I install my app on the emulator, I cannot access my assets, and furthermore I cannot see them on the emulator filesystem. Extracted my apk and confirmed the assets folder exists: $ ls -ltr assets/ total 16 -rw-rw-r--. 1 brad brad 1050 2010-05-20 00:33 schema-DashDB.sql -rw-rw-r--. 1 brad brad 9216 2010-05-20 00:33 dash.db On the emulator, no assets folder: # pwd /data/data/com.gtosoft.dash # ls -l drwxr-xr-x system system 2010-05-20 00:46 lib # I just want to package a pre-built database with my app and then open it to obtain data when needed. Just tried it on my Moto Droid, unable to access/open the DB, just like the emulator: DBFile=/data/data/com.gtosoft.dash/assets/dash.db Building the DB on the fly from a schema file is out of the question because its such a slow process (about 5-10 statements per second is all I get for throughput).

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• How to get free heap size in Java?

  - by Pentium10

  I want to calculate the heap usage for my app. I would like to get a procent value of Heap size. How do I calculate the procent value in code for the current running app?

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• getExtra from Intent launched from a pendingIntent

  - by spagi

  Hi. I am trying to make some alarms after the user selects something with a time from a list and create a notification for it at the given time. My problem is that the "showname" that a putExtra on my Intent cant be received at the broadcast receiver. It always get null value. This is the way I do it for most of my intents but I think this time maybe because of the pendingIntent or the broadcastReceiver something need to be done differentelly. Thank you The function that sends the Intent through the pending intent public void setAlarm(String showname,String time) { String[] hourminute=time.split(":"); String hour = hourminute[0]; String minute = hourminute[1]; Calendar rightNow = Calendar.getInstance(); rightNow.set(Calendar.HOUR_OF_DAY, Integer.parseInt(hour)); rightNow.set(Calendar.MINUTE, Integer.parseInt(minute)); rightNow.set(Calendar.SECOND, 0); long t=rightNow.getTimeInMillis(); long t1=System.currentTimeMillis(); try { Intent intent = new Intent(this, alarmreceiver.class); Bundle c = new Bundle(); c.putString("showname", showname);//This is the value I want to pass intent.putExtras(c); PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 12345, intent, 0); AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); alarmManager.set(AlarmManager.RTC_WAKEUP, rightNow.getTimeInMillis(),pendingIntent); //Log.e("ALARM", "time of millis: "+System.currentTimeMillis()); Toast.makeText(this, "Alarm set", Toast.LENGTH_LONG).show(); } catch (Exception e) { Log.e("ALARM", "ERROR IN CODE:"+e.toString()); } } And this is the receiving end public class alarmreceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { // Toast.makeText(context, "Alarm worked.", Toast.LENGTH_LONG).show(); Bundle b = intent.getExtras(); String showname=b.getString("showname");//This is where I suppose to receive it but its null NotificationManager manger = (NotificationManager) context .getSystemService(context.NOTIFICATION_SERVICE); Notification notification = new Notification(R.drawable.icon, "TVGuide ?pe???µ?s?", System.currentTimeMillis()); PendingIntent contentIntent = PendingIntent.getActivity(context, 0, new Intent(context, tvguide.class), 0); notification.setLatestEventInfo(context, "?? ?????aµµa ?e????se", showname, contentIntent); notification.flags = Notification.FLAG_ONLY_ALERT_ONCE; notification.sound = Uri.parse("file:///sdcard/dominating.mp3"); notification.vibrate = new long[]{100, 250, 100, 500}; manger.notify(1, notification); } }

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• Launch Activity for a certain record

  - by OceanBlue

  I have an screen that displays all the names in the Contacts in a ListView. When the user clicks on a name, I want to launch another Activity which display the details of the selected Contact (Phone number/ email) in another screen. How do I display details for the selected row. (i.e When starting the intent how do I send over the row_id of the item selected)? I've tried the following code: Intent i = new Intent(this, ContactDetails.class); startActivity(i);

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• Parser, send an argument/receive xml (receive already done/ send not)

  - by bruno

  public List<Afood> getFoodFromCat(String cat) { String resultado = ""; List<Afood> list = new ArrayList<Afood>(); try { URL xpto = new URL("http://10.0.2.2/webservice/nutrituga/get_food_by_cat.php"); HttpURLConnection conn; conn = (HttpURLConnection) xpto.openConnection(); conn.setDoInput(true); conn.connect(); InputStream is = conn.getInputStream(); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); try { DocumentBuilder db = dbf.newDocumentBuilder(); Document doc = db.parse(is); NodeList nl = doc.getElementsByTagName("item"); // resultado = String.valueOf(nl.getLength()); for (int i = 0; i < nl.getLength(); i++) { Node n = nl.item(i); Node childNode = n.getFirstChild(); while (childNode != null) { if (childNode.getNodeType() == Node.ELEMENT_NODE) { if (childNode.getNodeName().equalsIgnoreCase( "NAME_FOOD")) { Node valor = childNode.getFirstChild(); // resultado = resultado + valor.getNodeValue(); list.add(new Afood(valor.getNodeValue(), "", (int) Math.round(Math.random()), 1, 1, 1, 1, 1, 1)); } } childNode = childNode.getNextSibling(); } } return list; } catch (ParserConfigurationException e1) { e1.printStackTrace(); } catch (SAXException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return list; } I have this function that receives a xml and copy it to the list. This is well implemented. What i want do to know, is to send a category (that i receive like an argument of the function) and receive only the food from that category. The server is ready to receive the category and to send the food from that category. What do i have to do to send the category and receive the correct xml?

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• SharedPreferences.onSharedPreferenceChangeListener not being called consistently

  - by synic

  I'm registering a preference change listener like this (in the onCreate() of my main activity): SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); prefs.registerOnSharedPreferenceChangeListener( new SharedPreferences.OnSharedPreferenceChangeListener() { public void onSharedPreferenceChanged( SharedPreferences prefs, String key) { System.out.println(key); } }); The trouble is, the listener is not always called. It works for the first few times a preference is changed, and then it is no longer called until I uninstall and reinstall the app. No amount of restarting the application seems to fix it. I found a mailing list thread reporting the same problem, but no one really answered him. What am I doing wrong?

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• AndEngine Physics Editor loading level

  - by Khawar Raza

  I have created a .pes file using PhysicsEditor and imported as xml and have added to my project. When I parsed it and created bodies, it is showing strange behavior. The mapping of bodies that I created in PhysicsEditor is totally different what I see in my application means the shapes I draw in PhysicsEditor are rendering differently in my app. Here is my xml and code to parse and add bodies to scene. PhysicsEditor XML file: <?xml version="1.0" encoding="UTF-8"?> <!-- created with http://www.physicseditor.de --> <bodydef version="1.0"> <bodies numBodies="1"> <body name="car_path" dynamic="false" numFixtures="1"> <fixture density="2" friction="1" restitution="0" filter_categoryBits="1" filter_groupIndex="0" filter_maskBits="65535" isSensor="false" type="POLYGON" numPolygons="20" > <polygon numVertexes="6"> <vertex x="277.0000" y="152.0000" /> <vertex x="356.0000" y="172.0000" /> <vertex x="413.0000" y="194.0000" /> <vertex x="476.0000" y="223.0000" /> <vertex x="173.0000" y="232.0000" /> <vertex x="174.0000" y="148.0000" /> </polygon> <polygon numVertexes="4"> <vertex x="1556.0000" y="221.0000" /> <vertex x="1142.0000" y="94.0000" /> <vertex x="1255.0000" y="-15.0000" /> <vertex x="1554.0000" y="-14.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="-192.0000" y="177.0000" /> <vertex x="-888.0000" y="139.0000" /> <vertex x="-549.0000" y="-125.0000" /> </polygon> <polygon numVertexes="6"> <vertex x="1762.0000" y="24.0000" /> <vertex x="1862.0000" y="27.0000" /> <vertex x="1927.0000" y="68.0000" /> <vertex x="2078.0000" y="222.0000" /> <vertex x="1643.0000" y="212.0000" /> <vertex x="1642.0000" y="38.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="-1150.0000" y="146.0000" /> <vertex x="-1776.0000" y="140.0000" /> <vertex x="-1476.0000" y="-25.0000" /> </polygon> <polygon numVertexes="4"> <vertex x="-2799.0000" y="103.0000" /> <vertex x="-2684.0000" y="223.0000" /> <vertex x="-3112.0000" y="256.0000" /> <vertex x="-3108.0000" y="98.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="3112.0000" y="255.0000" /> <vertex x="2422.0000" y="222.0000" /> <vertex x="3120.0000" y="-71.0000" /> </polygon> <polygon numVertexes="4"> <vertex x="1142.0000" y="94.0000" /> <vertex x="1556.0000" y="221.0000" /> <vertex x="709.0000" y="226.0000" /> <vertex x="911.0000" y="93.0000" /> </polygon> <polygon numVertexes="6"> <vertex x="-2111.0000" y="89.0000" /> <vertex x="-2067.0000" y="94.0000" /> <vertex x="-2002.0000" y="139.0000" /> <vertex x="-2344.0000" y="223.0000" /> <vertex x="-2196.0000" y="112.0000" /> <vertex x="-2153.0000" y="91.0000" /> </polygon> <polygon numVertexes="4"> <vertex x="105.0000" y="233.0000" /> <vertex x="-94.0000" y="178.0000" /> <vertex x="69.0000" y="106.0000" /> <vertex x="91.0000" y="104.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="-2002.0000" y="139.0000" /> <vertex x="-2067.0000" y="94.0000" /> <vertex x="-2032.0000" y="110.0000" /> </polygon> <polygon numVertexes="4"> <vertex x="-1150.0000" y="146.0000" /> <vertex x="105.0000" y="233.0000" /> <vertex x="-2344.0000" y="223.0000" /> <vertex x="-2002.0000" y="139.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="413.0000" y="194.0000" /> <vertex x="356.0000" y="172.0000" /> <vertex x="376.0000" y="176.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="105.0000" y="233.0000" /> <vertex x="-192.0000" y="177.0000" /> <vertex x="-94.0000" y="178.0000" /> </polygon> <polygon numVertexes="4"> <vertex x="105.0000" y="233.0000" /> <vertex x="-1150.0000" y="146.0000" /> <vertex x="-888.0000" y="139.0000" /> <vertex x="-192.0000" y="177.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="3112.0000" y="255.0000" /> <vertex x="-3112.0000" y="256.0000" /> <vertex x="-2684.0000" y="223.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="3112.0000" y="255.0000" /> <vertex x="1556.0000" y="221.0000" /> <vertex x="1643.0000" y="212.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="709.0000" y="226.0000" /> <vertex x="173.0000" y="232.0000" /> <vertex x="476.0000" y="223.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="3112.0000" y="255.0000" /> <vertex x="2078.0000" y="222.0000" /> <vertex x="2422.0000" y="222.0000" /> </polygon> <polygon numVertexes="3"> <vertex x="3112.0000" y="255.0000" /> <vertex x="105.0000" y="233.0000" /> <vertex x="173.0000" y="232.0000" /> </polygon> </fixture> </body> </bodies> <metadata> <format>1</format> <ptm_ratio></ptm_ratio> </metadata> </bodydef> And here is my code: private void loadLevel() { // TODO Auto-generated method stub AssetManager assetManager = getAssets(); try { InputStream stream = assetManager.open("tmx/path1.xml"); if(stream != null) { try { DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); dbf.setValidating(false); dbf.setIgnoringComments(false); dbf.setIgnoringElementContentWhitespace(true); dbf.setNamespaceAware(true); DocumentBuilder db = null; db = dbf.newDocumentBuilder(); Document document = db.parse(stream); Element root = document.getDocumentElement(); NodeList bodiesNodeList = root.getElementsByTagName("bodies"); for(int i = 0; i < bodiesNodeList.getLength(); i++) { BodyDef bodyDef = new BodyDef(); bodyDef.type = BodyType.StaticBody; bodyDef.fixedRotation = true; Element bodiesElement = (Element)bodiesNodeList.item(i); NodeList bodyList = bodiesElement.getElementsByTagName("body"); for(int j = 0; j < bodyList.getLength(); j++) { Element bodyElement = (Element)bodyList.item(j); Body body = mPhysicsWorld.createBody(bodyDef); NodeList fixtureList = bodyElement.getElementsByTagName("fixture"); for(int k = 0; k < fixtureList.getLength(); k++) { Element fixtureElement = (Element)fixtureList.item(k); FixtureDef fixtureDef = new FixtureDef(); if(fixtureElement != null) { String density = fixtureElement.getAttribute("density"); String friction = fixtureElement.getAttribute("friction"); String restitution = fixtureElement.getAttribute("restitution"); fixtureDef = PhysicsFactory.createFixtureDef(Float.parseFloat(density), Float.parseFloat(friction), Float.parseFloat(restitution)); } NodeList polygonList = fixtureElement.getElementsByTagName("polygon"); if(polygonList != null && polygonList.getLength() > 0) { for(int m = 0; m < polygonList.getLength(); m++) { PolygonShape polyShape = new PolygonShape(); Element polygonElement = (Element)polygonList.item(m); NodeList vertexList = polygonElement.getElementsByTagName("vertex"); if(vertexList != null && vertexList.getLength() > 0) { Vector2 [] vectors = new Vector2[vertexList.getLength()]; for(int n = 0; n < vertexList.getLength(); n++) { Element vertexElement = (Element)vertexList.item(n); if(vertexElement != null) { float x = Float.parseFloat(vertexElement.getAttribute("x")); float y = Float.parseFloat(vertexElement.getAttribute("y")); vectors[n] = new Vector2(x/PIXEL_TO_METER_RATIO_DEFAULT, y/PIXEL_TO_METER_RATIO_DEFAULT); } } polyShape.set(vectors); fixtureDef.shape = polyShape; } body.createFixture(fixtureDef); } } } mScene.attachChild(bgSprite); mPhysicsWorld.registerPhysicsConnector(new PhysicsConnector(bgSprite, body, false, false)); } } } catch(Exception e) { e.printStackTrace(); } } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } Any idea where I am going wrong?

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• How do I revert from FRF50 back to ERE27?

  - by Brenton

  I got all excited with the leaked froyo update.zip that hit the net a few days ago, and installed it on my phone. Since then I've had many issues, the big one being ADB not discovering my phone. I'd like to revert my phone back, but can't find a signed update.zip on the nets that will do it. Does anyone know how I can revert my N1 from FRF50, back to ERE27? My phone is not rooted.

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• How do I make an app/service for virtual/soft buttons for (Home, menu,Back, Search) always on top?

  - by Ken

  I want make an app/service that looks like (Nexus One touch buttons) for the navigation keys (Home, menu,Back, Search) The buttons should always stay on top and send the command to the actually app thats running. Someone have ideas and sample codes how to do that? Ken

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• getLine1Number return null but not always....

  - by bob

  i use telephony manager for to ger the phone number, in sdk all work perfectly, on some device like my hero with 1.5 it return null, on the tattoo with 1.6 it work but on some other tattoo it return null.....I start to be crazy....why happen this? There is another way for to get the phone number? Thanks

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• Bitmap byte-size after decoding?

  - by need4sid

  Hi! How can I determine/calculate the byte size of a bitmap (after decoding with BitmapFactory)? I need to know how much memory space it occupies, because I'm doing memory caching/management in my app. (file size is not enough, since these are jpg/png files) Thanks for any solutions!

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• How to avoid re-drawing all views in an ArrayAdapter

  - by Hamy

  Hey all, I have an ArrayAdapter powering a ListView. I would like to change the data behind the ArrayAdapter and update the ListView's. Sounds like notifyDataSetChanged(); would be exactly what I am looking for, but it updates the entire ListView, and I would prefer to update on a row-by-row basis. Is there a way to do this with ArrayAdapter, or do I need to manage my data some other way if I want this functionality?

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• ListView Long Click Animation

  - by spaceboy2000

  I would like to capture long click events in a ListView, which was easily done using a OnItemLongClickListener. However, that lacks the fading animation of the selector transitioning to a long press that is seen when the long click is handled by onCreateContextMenu. How can I get that animation using OnItemLongClickListener?

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• JSON array deserialization is crashing the Dalvik VM

  - by Sam

  I have some code grabbing a JSON array from my server and initially storing it as a string. This all works fine until I try and deserialize it using google's gson fromJson method. LogCat spits out the error: 04-08 17:46:35.163: ERROR/dalvikvm(401): Can't shrink stack: curFrame is in reserved area (0x41049000 0x410491c4) My code that causes the error is: String[] results = gson.fromJson(returnString, String[].class); Can anyone shed some light on what I am doing wrong? Cheers, Sam

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• How to retrieve video thumbnail from an absolute path?

  - by steff

  Hi everyone, I know this has to be trivial but I just don't find the right resource, I guess. So all I want to do is retrieving a thumbnail for a video. All I have is the absolute path to the file on the sdcard as a String. So please point me into the right direction. And believe me, this is embarrassing enough to ask... Regards, Steff

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• Install app on Motorola Backflip from AT&T

  - by eric

  I'm trying to test an app out on the Motorola Backflip with AT&T as the carrier. I checked USB debugging on the phone's Development screen. Using Eclipse, how do I get the app to load on the Backflip so I can test it? DDMS shows a device with a bunch of question marks and unkown. Seems that it only gives me the option to load the app on the SD card which doesn't do me any good. I searched and found a Motorola driver which I'm supposed to install to the adb folder. Where is that folder? I've checked the phone and on my development machine. Maybe I need new glasses?

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• Only first table in create table statement being created

  - by Craig

  The table "credentials" does show up in the adb shell. I've checked logcat and it doesn't seem to report a problem... private static final String DATABASE_CREATE = "create table credentials (_id integer primary key autoincrement, " + "username text not null, password text not null, " + "lastupdate text);" + "create table user (_id integer primary key autoincrement, " + "firstname text not null, " + "lastname text not null);" + "create table phone (_phoneid integer primary key autoincrement, " + "userid integer not null, phonetype text not null, " + "phonenumber text not null);" + "create table email (_emailid integer primary key autoincrement, " + "userid integer not null, emailtype text not null, " + "emailaddress text not null);" + "create table address (_addressid integer primary key autoincrement," + "userid integer not null, addresstype text not null, " + "address text not null);" + "create table instantmessaging (_imid integer primary key autoincrement, " + "userid integer not null, imtype text not null, " + "imaccount text not null);"; I've been pouring over this and I bet its some silly syntax typo! Or, at least I hope it is something trivial ;-) Craig

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