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  • Problem in creating Temporary File in android?

    - by Rajapandian
    Hi, In my MediaPlayer application for streaming Video i am using the following code File temp = File.createTempFile("mediaplayertmp", "dat"); while running it throws exceptions like Parent directory of file in not writable:/sdcard/ mediaplayertmp43912.dat I dont how to handle this problem,and i want to know that when we execute that code means where the file will be created.any one knows the solution means please help with some code.

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  • Android: Access to an already paired connection

    - by poeschlorn
    Hi community, I have a question on accessing already existing paired bluetooth connections... How can a remote service detect an already paired connection and await a file transfer from it? In all comments on stackoverflow, on tutorials, ebooks or on google there is always shown how to create a new connection using sockets and so on, but no word about accessing to an existing one. Is it possible at all? If yes, can you also tell/show me how? At the moment I have no clue how to get started with it. Would be great if someone can help me get started :)

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  • Push Notifications in Android Platform

    - by Vinod
    I am looking to write an app which received pushed alerts from a server. I found a couple of methods to do this. 1) SMS - Intercept the incoming SMS and initiate a pull from the server 2) Poll the server periodically Each has its own limitations. SMS- no guarantee on arrival time. Poll may drain the battery. Do you have a better suggestion please?. Thanks much.

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  • Android java assigning 2d array to 3d array

    - by semajhan
    I'm running into problems trying to assign a 2d array to a 3d array, so I thought i'd ask a question about 3d and 2d arrays. Say I have a masterArray[][][] and wanted to put childArray1[][] and childArray2[][] into it. This is how I have done it and was wondering if that is the correct way of applying it: private int[][][] masterArray; private int[][] childArray1 = { {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 0, 0, 1, 0, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 0, 1, 1, 1, 1, 1, 1, 0, 1}, {1, 0, 1, 1, 1, 1, 0, 1, 0, 1}, {1, 0, 1, 1, 0, 1, 0, 1, 0, 1}, {1, 0, 1, 1, 0, 1, 1, 1, 0, 1}, {1, 0, 1, 1, 1, 1, 1, 1, 0, 1}, {1, 0, 1, 1, 0, 1, 1, 1, 0, 1}, {1, 0, 1, 1, 0, 1, 8, 1, 0, 1}, {1, 0, 7, 1, 1, 1, 0, 1, 0, 1}, {1, 0, 1, 1, 1, 1, 0, 1, 0, 1}, {1, 0, 1, 1, 1, 1, 1, 1, 0, 1}, {1, 0, 0, 0, 0, 0, 0, 9, 0, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} }; private int[][] childArray2 = { {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {0, 0, 0, 0, 0, 0, 0, 0, 1, 1}, {1, 1, 1, 1, 7, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 0, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 0, 0, 0, 1, 1, 1}, {1, 1, 1, 9, 1, 1, 8, 0, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, }; Ok, so in my init method I use these some methods to set the child arrays into the master array. What I was curious about was how this exactly works. I assumed the following: masterLevel = new int[MAX_LEVELS][MAP_WIDTH][MAP_HEIGHT]; for (int x = 0; x < MAP_WIDTH; x++) { for (int y = 0; y < MAP_HEIGHT; y++) { masterArray[currentLevel][x][y] = childArray1[x][y]; } } Would that work? In my application things aren't working so I picking out code that I am not 100% sure on.

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  • Android setContentView operation

    - by stormin986
    I've read that it's important to call setContentView() early in an activity since it builds the view objects that may be manipulated by subsequent code in onCreate(). In terms of lifecycle, does the view get drawn to screen as soon as setContentView() is called, or does it allow the onCreate() function to build/populate the information in the view objects, and wait to actually draw it after onCreate() completes? Thanks!

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  • Load image blurred Android

    - by Mira
    I'm trying to create a map for a game through an image, where each black pixel is equivalent to a wall, and yellow to flowers(1) and green grass(0) so far i had this image (50x50): http://i.imgur.com/Ydj9Cp2.png the problem here seems to be that, when i read the image on my code, it get's scaled up to 100x100, even tough i have it on the raw folder. I can't let it scale up or down because that will put noise and blur on the image and then the map won't be readable. here i have my code: (...) Bitmap tab=BitmapFactory.decodeResource(resources, com.example.lolitos2.R.raw.mappixel); //tab=Bitmap.createScaledBitmap(tab, 50, 50, false); Log.e("w", tab.getWidth()+"."+tab.getHeight()); for (int i = 0; i < tab.getWidth(); i++) { for (int j = 0; j < tab.getHeight(); j++) { int x = j; int y = i; switch (tab.getPixel(x, y)) { // se o é uma parede case Color.BLACK: getParedes()[x][y] = new Parede(x, y); break; case Color.GREEN: fundo.add(new Passivo(x,y,0)); break; default: fundo.add(new Passivo(x,y,1)); } } } How can i read my image Map without rescaling it?

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  • parse json news feed array android

    - by user1827260
    I have an json feed from bbc in this format { "name": "ticker", "entries": [ { "headline": "text", "prompt": "LATEST", "isBreaking": "false", "mediaType": "Standard", "url": "" }, { "headline": "text", "prompt": "LATEST", "isBreaking": "false", "mediaType": "Standard", "url": "" }, etc........... My code is as follows: ArrayList mylist = new ArrayList(); JSONObject json = JSONfunctions.getJSONfromURL("http:/......"); try{ JSONArray item = json.getJSONArray("entries"); for (int i = 0; i<item.length(); i++) { HashMap<String, String> map = new HashMap<String, String>(); JSONObject e = item.getJSONObject(i); JSONObject title = e.JSONObject("headline"); map.put("title", "Title:" + e.getString("headline"); } It gives me the error "java.lang.String cannot be converted to JSONObject" I also tried leaving out JSONObject title = e.JSONObject("headline"); and it gives me a path error (note

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  • Extracting xml data from string var in android

    - by ram
    Hi I have post some value using HttpPost and convert response into string using HttpEntity entity = response.getEntity(); String rrr=EntityUtils.toString(entity); rrr contain some xml tags <root> <mytag>its my tag</mytag> </root> Now I have to extract string "its my tag" I have try to do it with SAX Parser but it give out put null. Plz, help me in solving this problem.

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  • Android liveWallpaper background

    - by Beginer Developer
    How do I scroll the background image on an ACTION_MOVE event? Here is my code used to draw the background image: void drawFrame() { final SurfaceHolder holder = getSurfaceHolder(); Canvas c = null; try { c = holder.lockCanvas(); if (c != null) { c.drawBitmap(myBg, 0, 0, mPaint); } } finally { if (c != null) holder.unlockCanvasAndPost(c); } // Reschedule the next redraw mHandler.removeCallbacks(mDrawAnim); if (mVisible && mAnime) { mHandler.postDelayed(mDrawAnim, 50 ); } }

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  • Android Google Play Services Error whilst Connecting

    - by TastyLemons
    I am attempting to implement the Google Play Services into my Game to add a Leaderboard. However, whenever I try to connect, I get the following error message: I have correctly imported google-play-services_lib into my project, and AdMob is working perfectly. This error message comes up after it tries to login. The account with which I am logging in, is authorized as a Test account so that shouldn't be the issue. There are no error messages in the LogCat window either. All I got was that Error Message from the image. Project hierarchy : I am assuming that simply Extending the Activity from BaseGameActivity should handle everything for me right?

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  • Android change Tab image (not backgound)

    - by user1143989
    I am using a TabHost which has 3 tabs. Each tab has a image + text. spec = tabHost.newTabSpec("MyTasks") .setIndicator(Html.fromHtml("<b><H2>My Tasks</H2></b>"), getResources().getDrawable(R.drawable.task )) .setContent(intent); tabHost.addTab(spec); I want to change image when I select a tab. I used following code to change it ... TabWidget tw = getTabWidget(); View leftTabView = tw.getChildAt(0); leftTabView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab1_drawable)); tab1_drawable is a xml (selector and items for each state). THIS IS SETTING AND CHANGING BACKGROUND NOT THE IMAGE I SET. How can I change it?

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  • android problem in getting the screen resolution size

    - by Sivaganesan.r
    DisplayMetrics displaymetrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(displaymetrics); height = displaymetrics.heightPixels; width = displaymetrics.widthPixels; Log.e("FirstImage", "Width = "+width+"Height = "+height); the above was the code i have used to display the screen sizes.. but the problem is iam getting width=320 and height=569. but am using motorola milestone screen size is 480x854 please suggest me in this........... thanks in advance

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  • Android ArrayList Calendar add and get is different

    - by Raku ShinShou
    I put increment date of the calendar and add into arraylist, but when i loop them out, the date is all same. Calendar a = Calendar.getInstance(); ArrayList<Calendar> b = new ArrayList<Calendar>(); for (int i=0; i<3; i++) { a.add(Calendar.DATE, i>0 ? 1 : 0); b.add(a); } for (int i=0; i<b.size(); i++){ Log.d("xxx", "test=" + b.get(i)); } suppose i wan 10/11/2012, 11/11/2012, 12/11/2012 but it come out like 12/11/2012, 12/11/2012, 12/11/2012 Anyone know how to solve this?

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  • download html source android?

    - by mars
    I'm trying to download a website source code and display it in a textbox but I seem to get an error and can't figure it out :s public void getHtml() throws ClientProtocolException, IOException { HttpClient httpClient = new DefaultHttpClient(); HttpContext localContext = new BasicHttpContext(); HttpGet httpGet = new HttpGet("http://www.spartanjava.com"); HttpResponse response = httpClient.execute(httpGet, localContext); String result = ""; BufferedReader reader = new BufferedReader( new InputStreamReader( response.getEntity().getContent() ) ); String line = null; while ((line = reader.readLine()) != null){ result += line + "\n"; Toast.makeText(activity.this, line.toString(), Toast.LENGTH_LONG).show(); } } how come this doesn't work and throw an IOException?

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  • [Android] Is disabling landscape mode unforgivable?

    - by Nicolas Raoul
    Our application could support landscape mode without any problem, but it is such a pain that we are thinking about forcing portrait mode. Question: Is it BAD? The main problem is that changing orientation generates random crashes on many screens. Avoiding those crashes would potentially allow us to spend more time on the core aspects of the app. Will the same crashes happen when users switch apps anyway? Also, are there landscape-oriented devices where our app will become useless?

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  • Android TextWatcher for more than one EditText

    - by Creative MITian
    I want to implement the TextWatcher interface for more than one EditText fields. Currently I am using : text1.addTextChangedListener(this); text2.addTextChangedListener(this); then overriding the methods in my Activity: public void afterTextChanged(Editable s) {} public void beforeTextChanged(CharSequence s, int start, int count, int after) {} public void onTextChanged(CharSequence s, int start, int before, int count) { // do some operation on text of text1 field // do some operation on text of text2 field } However this is working fine but I'm looking for other ways so that I can explicitly identify that in which EditText field the SoftKeyboard is currently focused.

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