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  • Incremental Timer

    - by Donal Rafferty
    I'm currently using a Timer and TimerTask to perform some work every 30 seconds. My problem is that after each time I do this work I want to increment the interval time of the Timer. So for example it starts off with 30 seconds between the timer firing but I want to add 10 seconds to the interval then so that the next time the Timer takes 40 seconds before it fires. Here is my current code: public void StartScanning() { scanTask = new TimerTask() { public void run() { handler.post(new Runnable() { public void run() { wifiManager.startScan(); scanCount++; if(SCAN_INTERVAL_TIME <= SCAN_MAX_INTERVAL){ SCAN_INTERVAL_TIME = SCAN_INTERVAL_TIME + SCAN_INCREASE_INTERVAL; t.schedule(scanTask, 0, SCAN_INTERVAL_TIME); } } }); }}; Log.d("SCAN_INTERVAL_TIME ** ", "SCAN_INTERVAL_TIME ** = " + SCAN_INTERVAL_TIME); t.schedule(scanTask, 0, SCAN_INTERVAL_TIME); } But the above gives the following error: 05-26 11:48:02.472: ERROR/AndroidRuntime(4210): java.lang.IllegalStateException: TimerTask is scheduled already Calling cancel or purge doesn't help. So I was wondering if anyone can help me find a solution? Is a timer even the right way to approach this?

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  • Map refresh problem mapview.invalidate() method is not working

    - by RockOn
    Hi friends! In my application I tried to search diff map location using diff lat and long. First time the application show the map but wen i change the lat long and try to invalidate the mapview using diff lat long, map is not refreshed. Below is my code please have a look and suggest accordingly: //Source code protected void onCreate(Bundle icicle) { // TODO Auto-generated method stub super.onCreate(icicle); setContentView(R.layout.main); infoTextView = (TextView) findViewById(R.id.infoTextView); // Finding Current Location locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1l, 1l, this); Location location = locationManager.getLastKnownLocation("gps"); // mock location by hard-code if DDMS has not sent a fake loc to the emulator. if (location == null) { lat = 13.6972 * 1E6; lng = 100.5150 * 1E6; } else { // get real location if can retrieve the location sent by DDMS or GPS lat = location.getLatitude() * 1E6; lng = location.getLongitude() * 1E6; } setGPSLocation(lat, lng); } //This is the function which I am calling with different lat and long public void setGPSLocation(Double lati, Double longi) { lat = lati; lng = longi; System.out.println("Latitude :"+ lat +" Longitude :"+lng); // Prepare text being shown String tmpLoc = LOC_INFO_TEMPLATE; tmpLoc = tmpLoc.replace("lg", String.valueOf(lng)); tmpLoc = tmpLoc.replace("lt", String.valueOf(lat)); infoTextView.setText(tmpLoc); // Setup Zoom/Hide Buttons linearLayout = (LinearLayout) findViewById(R.id.zoomview); mapView = (MapView) findViewById(R.id.mapview); mapView.invalidate(); mapView.setBuiltInZoomControls(true); //new by me mapView.setSatellite(true); // Set satellite view mZoom = (ZoomControls) mapView.getZoomControls(); linearLayout.addView(mZoom); // Setup Marker mapOverlays = mapView.getOverlays(); drawable = this.getResources().getDrawable(R.drawable.marker); itemizedOverlay = new MyItemizedOverlay(drawable); GeoPoint point = new GeoPoint(lat.intValue(), lng.intValue()); OverlayItem overlayitem = new OverlayItem(point, "", ""); itemizedOverlay.addOverlay(overlayitem); mapOverlays.add(itemizedOverlay); // Centralize Current Location myMapController = mapView.getController(); myMapController.setZoom(DEFAULT_ZOOM_NUM); centerlizeCurrentLocation(point); } Any suggest is truly appreciable.

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  • Adding marker to the retrieved location

    - by Rahul Varma
    I have displayed the map in my app by using the following code. I have retrieved info from the database and displayed the map. Now i want to add marker to the retrieved location... googleMao.java public class googleMap extends MapActivity{ private MapView mapView; private MapController mc; GeoPoint p; long s; Cursor cur; SQLiteDatabase db; createSqliteHelper csh; String qurry; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.map); // String qurry=getIntent().getStringExtra("value"); //here is calling the map string qurry s = getIntent().getLongExtra("value",2); map(); mapView = (MapView) findViewById(R.id.mapview1); LinearLayout zoomLayout = (LinearLayout)findViewById(R.id.zoom); View zoomView = mapView.getZoomControls(); zoomLayout.addView(zoomView, new LinearLayout.LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); //mapView.displayZoomControls(true); mapView.setBuiltInZoomControls(true); mc = mapView.getController(); String coordinates[] = {"1.352566007", "103.78921587"}; double lat = Double.parseDouble(coordinates[0]); double lng = Double.parseDouble(coordinates[1]); Geocoder geoCoder = new Geocoder(this, Locale.getDefault()); try { List<Address> addresses = geoCoder.getFromLocationName(qurry,5); String add = ""; if (addresses.size() > 0) { p = new GeoPoint( (int) (addresses.get(0).getLatitude() * 1E6), (int) (addresses.get(0).getLongitude() * 1E6)); mc.animateTo(p); mapView.invalidate(); mc.setZoom(6); } } catch (IOException e) { e.printStackTrace(); } } @Override protected boolean isRouteDisplayed() { // Required by MapActivity return false; } public void map() { String[] str={"type"}; int[] i={R.id.type}; csh=new createSqliteHelper(this); db=csh.getReadableDatabase(); cur=db.rawQuery("select type from restaurants where _id="+s,null); if(cur.moveToFirst()) { qurry=cur.getString(cur.getColumnIndex("type")); } } }

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  • What is the String 'volumeName' argument of MediaStore.Audio.Playlists.Members.getContentUri referri

    - by Brett
    I am wanting to query the members of a given playlist. I have the correct playlist id, and want to use a managedQuery() to look at the playlist members in question. What I have is this: private String [] columns = { MediaStore.Audio.Playlists.Members.PLAYLIST_ID, MediaStore.Audio.Playlists.Members.TITLE, }; Uri membersUri = MediaStore.Audio.Playlists.Members.getContentUri(volume, playlistId); Cursor tCursor = managedQuery(membersUri, columns, null, null, null); I don't know what the volume argument needs to be. I've tried this: MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI.toString() for the "volume" argument. That gives me back a valid content URI that looks like: content://media/external/audio/playlists/2/members However, my cursor comes back null. I probably am way off base -- I know what I want to do is very simple.

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  • AlertDialog Input Text

    - by soclose
    Hi, I'd like to use AlertDialog as a pin code or password dialog. Here is my code - AlertDialog.Builder alert = new AlertDialog.Builder(this); alert.setTitle("Login"); alert.setMessage("Enter Pin :"); // Set an EditText view to get user input final EditText input = new EditText(this); alert.setView(input); alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { String value = input.getText().toString(); Log.d( TAG, "Pin Value : " + value); return; } }); alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub return; } }); alert.show(); How to code that all input text will appear like ' * '

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  • progress indicator

    - by Lynnooi
    Hi, Is there any way to make the progress bar into a circle shape? I have a play button in my apps and would like to show the progress of loading the song around the button.

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  • Problem with ImageButton.setVisibility()

    - by Luis Lopez
    Hello guys! I'm having a problem when setting the visibility of two image buttons one on top of the other. The idea is to implement a play/pause control. The problem is that the only part where setting the visibility actually works is in the click listeners of the buttons. If I try to change it somewhere else nothing happens. Any idea why is this happening? Thanks in advance! playBtn.setOnClickListener(new OnClickListener() {//PLAY BUTTON LISTENER public void onClick(View v) { playBtn.setVisibility(ImageButton.GONE); pauseBtn.setVisibility(ImageButton.VISIBLE); mp.start(); }}); pauseBtn.setOnClickListener(new OnClickListener() {//PAUSE BUTTON LISTENER public void onClick(View v) { pauseBtn.setVisibility(ImageButton.GONE); playBtn.setVisibility(ImageButton.VISIBLE); mp.pause(); }}); final class SeekBarTask extends TimerTask { public SeekBarTask(int duration) { } @Override public void run() { if(seekBar.getProgress() = mp.getDuration()) {//IF SONG HAS FINISHED... pauseBtn.setVisibility(ImageButton.GONE);//THESE ONES playBtn.setVisibility(ImageButton.VISIBLE);//DOESN'T WORK mp.stop(); } else { seekBar.incrementProgressBy(100); } } }

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  • Getting GPS data?

    - by svebee
    Inside public class IAmHere extends Activity implements LocationListener { i have @Override public void onLocationChanged(Location location) { // TODO Auto-generated method stub } @Override public void onProviderDisabled(String provider) { // TODO Auto-generated method stub } @Override public void onProviderEnabled(String provider) { // TODO Auto-generated method stub } @Override public void onStatusChanged(String provider, int status, Bundle extras) { // TODO Auto-generated method stub } and inside public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.iamhere); i have LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE); List<String> providers = lm.getProviders(true); /* Loop over the array backwards, and if you get an accurate location, then break out the loop*/ Location l = null; for (int i=providers.size()-1; i>=0; i--) { l = lm.getLastKnownLocation(providers.get(i)); if (l != null) break; } double[] gps = new double[2]; if (l != null) { gps[0] = l.getLatitude(); gps[1] = l.getLongitude(); } gpsString = (TextView)findViewById(R.id.gpsString); String Data = ""; String koordinata1 = Double.toString(gps[0]); String koordinata2 = Double.toString(gps[1]); Data = Data + koordinata1 + " | " + koordinata2 + "\n"; gpsString.setText(String.valueOf(Data)); but seems it's not working? Why? I mean even emulator doesn't want to send GPS data - When I click "send" via UI or console, nothing happens...? Thank you.

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  • DDMS plugin not loading GPX files

    - by Craig
    I am unable to load a GPX file in the DDMS eclipse plugin. When specifying a GPX file, no points are added to the emulator control list. I have tried adding KML files as well, generated in Google earth. Is there a way to get these files to work? The content of the file is listed below: <?xml version="1.0" encoding="UTF-8"?> <gpx version="1.0" creator="RunKeeper - http://www.runkeeper.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.topografix.com/GPX/1/0" xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd"> <trk> <name>Running 11/30/09 3:37 pm11/30/09 3:37 pm</name> <time>2009-11-30T15:37:08Z</time> <trkseg> <trkpt lat="41.811406000" lon="-72.521427000"> <ele>37.000000</ele> <time>2009-11-30T15:37:08Z</time> </trkpt> <trkpt lat="41.811030000" lon="-72.522882000"> <ele>38.000000</ele> <time>2009-11-30T15:37:10Z</time> </trkpt>

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  • How to get a continuous Touch Event?

    - by daliz
    My class extends View and I need to get continuous touch events on it. If I use: public boolean onTouchEvent(MotionEvent me) { if(me.getAction()==MotionEvent.ACTION_DOWN) { myAction(); } return true; } ... the touch event is captured once. What if I need to get continuous touches without moving the finger? Please, tell me I don't need to use threads or timers. My app is already too much heavy. Thanks.

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  • Hide Soft Keyboard Not Working ...

    - by stormin986
    I'm developing on the Droid Incredible (and have tested on a 1.5 AVD Emulator as well), and one of the tabs in my tab widget consists of a listview and a row with an EditText and a Send button (for a chat feature). I am using the following to close the soft keyboard once I click Send, but it's not working. This is identical to code I've found elsewhere that people have upvoted as correct. See anything I'm missing? // in Button's onClick(): EditText chatTextBox = (EditText) findViewById(R.id.chat_entry); // Handle button click ... chatTextBox.setText(""); InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromInputMethod(chatTextBox.getWindowToken(), InputMethodManager.HIDE_IMPLICIT_ONLY); I also tried changing the flag to 0. No luck. Anyone know what's up??

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  • Handler vs AsyncTask

    - by Steve
    I'm confused as to when one would choose AsyncTask over a Handler. Say I have some code I want to run every n seconds which will update the UI. Why would I choose one over the other?

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  • Displaying music list

    - by Rahul Varma
    Hi, I am trying to display the music list that is retrieved from the website. I have posted a question here... http://stackoverflow.com/questions/2672478/problem-in-displaying-list-using-array-adapters. I have also been answered. Thanks to Mr. Janusz... Since i m poor in english i couldnt understand way to do it. So, it will be helpful anyone explain me the solution and provide some sample code to do it... Plz... I need it urgently...

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  • Sqlite table constraint - unique on multiple columns

    - by Rich
    I can find syntax "charts" on this on the sqlite website, but no examples and my code is crashing. I have other tables with unique constraints on a single column, but I want to add a constraint to the table on two columns. This is what I have that is causing a SQLiteException with the message "syntax error". CREATE TABLE name (column defs) UNIQUE (col_name1, col_name2) ON CONFLICT REPLACE I'm doing this based on the following: table-constraint

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  • Wifi and 3G same time

    - by Skolleus
    For my App I need Data from both, a local Network and the Internet. The local Network (Wifi) has no connection to the internet so I have to use the mobile connection (3G for Example). But whenever I connect to the local Network, 3G stopps. After asking the Samsung Service, there is no way to change that in the UI. But they couldn't tell me, if there is a programmable Interface for that. There is a mobile access point inside, so there is a way to connect a Wifi device to the Internet (which means that both, a wifi and a 3G connection is possible the same time in that way). But for my App the phone/tab has to connect to the existing Network and use the 3G for Internet. So this is my question here. Is there a way to connect to an existing Network and using 3G for Internet the same time?

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  • Jsch how to list files along with directories

    - by Rajeev
    In the following code when the command ls -a is executed why is that i see only the list of directories and not any files that are on a remote linux server JSch jsch = new JSch(); Session session = jsch.getSession(username1, ip1, 22); java.util.Properties config = new java.util.Properties(); config.put("StrictHostKeyChecking", "no"); session.setConfig(config); //session.setPassword(password.getText().toString()); session.setPassword(password1); session.connect(); final ListView mainlist = (ListView)findViewById(R.id.list); final RelativeLayout rl = (RelativeLayout)findViewById(R.id.rl); mainlist.setVisibility(View.VISIBLE); rl.setVisibility(View.INVISIBLE); String command = "ls -a"; Channel channel = session.openChannel("exec"); ((ChannelExec) channel).setCommand(command); channel.setInputStream(null); ((ChannelExec) channel).setErrStream(System.err); InputStream in = channel.getInputStream();

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  • setting up Droid for development

    - by sungpil yoon
    Hi, I am trying to follow the instructions on this page "Developing on a device". After I finished all the steps, and executes command "adb devices", my Droid is not listed. Is there anything else that I need to do if my device is Droid? It seems there are discussions on this issue but I could not find any definitive answer. Thank you.

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  • Cursor backed ExpandableListView data update

    - by Aleksander O
    Hi I'm implementing CRUD functionality using ExpandableListView. Wen I delete a parent data on screen refreshes automatically but it doesn't when I delete a child. I've solved this with: int categoryId = ExpandableListView.getPackedPositionGroup(info.packedPosition); getExpandableListView().collapseGroup(categoryId); getExpandableListView().expandGroup(categoryId); Is there any better way to this? Thanks Aleksander

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  • AddProximityAlert Disappears Although Expiration -1

    - by Prasanna
    Hello, I want my app to have a proximityAlert until the user removes it. I use expiration -1 to create this proximityAlert. The proximityAlert works. But I find on my Droid phone, after adding a proximityAlert and leaving the phone over night for charging, the proximityAlert does not work the next day. How can I make sure that my proximityAlert is active indefinitely unless the user removes it? Thanks, Prasanna

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  • How to change colors for ListView, alternating row color?

    - by Gerry
    I have a couple of list views, one uses TextViews laid out with xml, the other uses a custom class derived from View. The default halloween color scheme is pretty ugly. How can I change the background and selection colors for the list elements. Ideally, I'd like to be able to do this in code not xml, to handle the custom view. Thanks, Gerry

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  • OpenGL-ES Texture Mapping. Texture is reversed?

    - by Feet
    I am trying to get my head around Texture mapping, I thought I had it the other day after asking this. However, I am having some trouble with my texture coordinates being flipped from what I am expecting. I am loading my texture like so int[] textures = new int[1]; gl.glGenTextures(1, textures, 0); _textureID = textures[0]; gl.glBindTexture(GL10.GL_TEXTURE_2D, _textureID); Bitmap bmp = BitmapFactory.decodeResource( _context.getResources(), R.drawable.die_1); GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bmp, 0); gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR); gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR); bmp.recycle(); My cube is this float vertices[] = { // Front face -width, -height, depth, // 0 width, -height, depth, // 1 width, height, depth, // 2 -width, height, depth, // 3 // Back Face width, -height, -depth, // 4 -width, -height, -depth, // 5 -width, height, -depth, // 6 width, height, -depth, // 7 // Left face -width, -height, -depth, // 8 -width, -height, depth, // 9 -width, height, depth, // 10 -width, height, -depth, // 11 // Right face width, -height, depth, // 12 width, -height, -depth, // 13 width, height, -depth, // 14 width, height, depth, // 15 // Top face -width, height, depth, // 16 width, height, depth, // 17 width, height, -depth, // 18 -width, height, -depth, // 19 // Bottom face -width, -height, -depth, // 20 width, -height, -depth, // 21 width, -height, depth, // 22 -width, -height, depth, // 23 }; short indices[] = { // Front 0,1,2, 0,2,3, // Back 4,5,6, 4,6,7, // Left 8,9,10, 8,10,11, // Right 12,13,14, 12,14,15, // Top 16,17,18, 16,18,19, // Bottom 20,21,22, 20,22,23, }; float texCoords[] = { // Front face textured only, for simplicity 0.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f}; And it is drawn like so // Counter-clockwise winding. gl.glFrontFace(GL10.GL_CCW); // Enable face culling. gl.glEnable(GL10.GL_CULL_FACE); // What faces to remove with the face culling. gl.glCullFace(GL10.GL_BACK); // Enabled the vertices buffer for writing and to be used during // rendering. gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); // Specifies the location and data format of an array of vertex // coordinates to use when rendering. gl.glVertexPointer(3, GL10.GL_FLOAT, 0, verticesBuffer); if (normalsBuffer != null) { // Enabled the normal buffer for writing and to be used during rendering. gl.glEnableClientState(GL10.GL_NORMAL_ARRAY); // Specifies the location and data format of an array of normals to use when rendering. gl.glNormalPointer(GL10.GL_FLOAT, 0, normalsBuffer); } // Set flat color gl.glColor4f(rgba[0], rgba[1], rgba[2], rgba[3]); // Smooth color if ( colorBuffer != null ) { // Enable the color array buffer to be used during rendering. gl.glEnableClientState(GL10.GL_COLOR_ARRAY); // Point out the where the color buffer is. gl.glColorPointer(4, GL10.GL_FLOAT, 0, colorBuffer); } // Use textures? if ( textureBuffer != null) { gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY); gl.glEnable(GL10.GL_TEXTURE_2D); gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, textureBuffer); } // Translation and rotation before drawing gl.glTranslatef(x, y, z); gl.glRotatef(rx, 1, 0, 0); gl.glRotatef(ry, 0, 1, 0); gl.glRotatef(rz, 0, 0, 1); gl.glDrawElements(GL10.GL_TRIANGLES, numOfIndices, GL10.GL_UNSIGNED_SHORT, indicesBuffer); // Disable the vertices buffer. gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); gl.glDisableClientState(GL10.GL_COLOR_ARRAY); gl.glDisableClientState(GL10.GL_NORMAL_ARRAY); gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY); // Disable face culling. gl.glDisable(GL10.GL_CULL_FACE); However my front face looks like this I also add, I haven't got any normals set, are textures affected by normals? float texCoords[] = { // Front 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f} It seems as if the texture is being flipped, so the coordinates don't match up properly?

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  • How to convert a AChartEngine chart to bitmap

    - by user2137817
    I want to convert a line graph I made with AChartEngine lib to bitmap.How should I do?I didn't found on the net anything that can help. Is the toBitmap() method suitable?if yes then how to use it? Update: I used this method : public static Bitmap loadBitmapFromView(View v) { v.setDrawingCacheEnabled(true); v.layout( 0,0,800,600); v.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH); v.buildDrawingCache(); v.getDrawingCache(); Bitmap bmp = Bitmap.createBitmap(800,600, Bitmap.Config.ARGB_8888); v.setDrawingCacheEnabled(false); return bmp; } and saved the result in a png file but all I got is an empty file !

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  • Marquee in various TextView at the same time?

    - by YaW
    Hi, I have a dinamic layout wich has one to six TextViews. All the TextViews are created in the Activity (programatically) and all are created equally. I want to marquee the text in the TextViews, but I don't know how to do it. Apparently, the TextView needs to be focused for the marquee works fine, but how i focus six TextViews at the same time? I think that's not possible, so, is there any workaround? Is it possible to get the marquee working without having the focus? This is the code of the TextViews: //TextView TextView tvTitulo = new TextView(this); tvTitulo.setText("Some loooooooooooooooooooooong text"); tvTitulo.setTypeface(null, Typeface.BOLD); //Marquee tvTitulo.setSingleLine(); tvTitulo.setEllipsize(TruncateAt.MARQUEE); tvTitulo.setHorizontallyScrolling(true); tvTitulo.setFocusableInTouchMode(true); If I remove the line tvTitulo.setFocusableInTouchMode(true); the marquee is not working at all. If I don't remove the line, only one of the TextViews is getting the marquee working. Greetings

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