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  • Android Thumbnail Loading Problem

    - by y ramesh rao
    I'm using a thumbnail loader in my project the one mentioned below. The problem is that the it loads all the thumbnails properly except the ones who's size is of about 40K. When our back end is giving that sort of thumbnails are not generated and sometimes this eventually leads to a Crash too. What m I supposed to do with this ? public class ThumbnailManager { private final Map<String, Bitmap> drawableMap; public static Context context; private Resources res; private int thumbnail_size; public ThumbnailManager() { drawableMap = new HashMap<String, Bitmap >(); res = new Resources(context.getAssets(), null, null); thumbnail_size = res.getInteger(R.ThumbnailManager.THUMBNAIL_SIZE); } public Bitmap fetchBitmap(String urlString) { if(drawableMap.containsKey(urlString)) { return (drawableMap.get(urlString)); } //Log.d(getClass().getSimpleName(), " Image URL :: "+ urlString); try { InputStream is = fetch(urlString); android.util.Log.v("ThumbnailManager", "ThumbnailManager " + urlString); drawableMap.put(urlString, BitmapFactory.decodeStream(is));//Bitmap.createScaledBitmap(BitmapFactory.decodeStream(is), thumbnail_size, thumbnail_size, false)); return drawableMap.get(urlString); } catch(Exception e) { android.util.Log.v("EXCEPTION", "EXCEPTION" + urlString); return null; } } public void fetchBitmapOnThread(final String urlString, final ImageView imageView) { if(drawableMap.containsKey(urlString)) { imageView.setImageBitmap(drawableMap.get(urlString)); return; } if(urlString.compareTo("AUDIO") == 0) { Bitmap audioThumb = BitmapFactory.decodeResource(context.getResources(), R.drawable.timeline_audio_thumb); drawableMap.put(urlString, Bitmap.createScaledBitmap(audioThumb, thumbnail_size, thumbnail_size, false)); imageView.setImageBitmap(drawableMap.get(urlString)); return; } final Handler handler = new Handler() { public void handleMessage(Message message) { imageView.setImageBitmap((Bitmap) message.obj); } }; Thread thread = new Thread() { public void run() { Bitmap urlBitmap = fetchBitmap(urlString); Message message = handler.obtainMessage(1, urlBitmap); handler.sendMessage(message); } }; thread.start(); } public InputStream fetch(String urlString) throws IOException, MalformedURLException { final URL url = new URL(urlString); final URLConnection conn = url.openConnection(); HttpURLConnection httpConn = (HttpURLConnection) conn; httpConn.setAllowUserInteraction(true); httpConn.setInstanceFollowRedirects(true); httpConn.setRequestMethod("GET"); httpConn.connect(); return(conn.getInputStream()); } }

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  • back button is working on emulator but it is not working in device in android

    - by Rajeevgandhi
    Hi all, am new to this android development. I have index page and am displaying every links in the same page using div concept. Now i want to use the back button for my application i have developed code to handle the div and it is working in the AVD(Andriod Virtual Device 5556) but if i upload the apk into my device it is not working. Am waiting for your reply Please help me...... Thanks, Rajeevgandhi. S

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  • Android dev time vs iPhone dev time

    - by Daniel Benedykt
    Hi IF someone has to develop the same application for Android and iPhone, is it more difficult to develop in one platform than on the other? Does it take more time? Lets think about the average app. Lists, text , buttons, fetch information from the internet. Thanks

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  • Text to speech(TTS)-Android

    - by bharathi
    Hi, I am new to this android platform.now I am Working on TTS(Text to Speech).what I am trying to do is that when i enter the text in the Text area it has to be converted to speech,when i click the speak button.can anyone help me out.Thanks in Advance.

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  • focus not going to another button in android

    - by Rajendar
    Hi, I wrote a code for pinging of given URL.It works fine for me.But whenever i clicked on the start ping button, pinging started but that time focus always is on start button and no widget of the screen working that time. After pressing many times it will gives the force close error.If iam giving URL which is not pinging then that time , all the widgets are working fine.After some time i need to stop the pinging by using my stop button.But it is not working.Please give me advise.Iam using Runtime.exec() for ping command in my android.Plz give me advise.

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  • android 2.2 browser dont work pageY or PageX in ontouchend event

    - by juanca
    I have a web app that work perfect in android 2.1, when I upgrade to 2.2 the pageX property in ontouchend event, this is my code: menu1.ontouchend = function(e){ e.preventDefault(); if (e.touches && e.touches.length0) { // iPhone x2 = e.touches[0].pageX; y2 = e.touches[0].pageY; } else { // all others x2 = e.pageX; y2 = e.pageY; } } Anybody know what change in the javascript API for touch events from 2.1 to 2.2?????

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  • Android hosts file usage

    - by dominos
    I have the following problem: I make a custom hosts file to test some features of my application and then push it to my android emulator. The thing is that these settings do not take effect immediately. I have to wait about 10 minutes before they become active. So my question is: how to make the new hosts file active instantly? I have many different settings to test and I can't wait 10 minutes every time.

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  • Android - Declarative vs Programmatic UI

    - by Steve
    Has anyone seen or compiled benchmarks comparing declarative (XML) versus programmatically created UI's in Android? There are things that Google has done to speed up the declarative approach, but you still do have the layout inflation step done at runtime. Have you ever switched (or considered) changing your UI from declarative to programmatic for any reason?

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  • null checking edit textbox android

    - by sara brown
    i want to make empty textbox checking for android. i tried try catch but it was force to close. below is my codes try{ name = (EditText)findViewById(R.id.name); }catch(NullPointerException ex){ new AlertDialog.Builder(KawalanAppXTVT.this).setTitle("Error" ) .setMessage("That's not a number") .setPositiveButton("OK", null).show(); can someone help me?

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  • Android: SQLite content accessing error

    - by vnshetty
    I've following code, it gives run time error as below... why? try{ String myPath = DB_PATH + DB_NAME; mDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY); }catch(SQLiteException e){} Runtime Error: :sqlite returned: error code = 1, msg = no such table: android_metadata :SELECT locale FROM android_metadata failed :Failed to setLocale() when constructing, closing the database :android.database.sqlite.SQLiteException: no such table: android_metadata

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  • Android String.equals doesn't work when I trying to match from httpresponse

    - by user469652
    RestClient.post("auth/login/", loginparam, new AsyncHttpResponseHandler() { @Override public void onSuccess(String s) { Toast.makeText(getApplicationContext(), String.valueOf(s.toLowerCase().equals("ok")), Toast.LENGTH_LONG).show(); if (s.equals("ok")) { startActivity(new Intent(getApplication(), HomeActivity.class)); } } }); This is the code I used for login in android app, In the Toast text, I can see the server did returned "ok", but s.equals always failed in my case, can someone explain that? Thank you.

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  • Android -- Transferring Application to a Device

    - by Ryan
    I have just finished my android application and now it's time to test it under real-life conditions. The only problem is I'm clueless as to how to take the application and transfer it over to a device. I have already signed the application. What's next? Thanks in advance for your help!

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  • android activity can't recover

    - by Admin
    When I click my app's icon on the desktop,the splashactivity will first run, then it start the loginactivity before it finished. I click the loginbutton to login.the I came to the mainactivity.Then I click the HomeKey to goto the Android Home. At this time ,I click the app's icon again, the splashactivity start firstly. Why the mainactivity can't be recover? Othewirse,when I click the HomeKey at loginactivity ,the app can skip the splashactivity and recover the loginactivity.Thanks.

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  • Where is comprehensive documentation on Android's XML shapes?

    - by Daniel Lew
    I've been looking around for this for a long time but can never seem to find it in the Android documentation. There's all sorts of advanced things I see, but I can never find any solid documentation - there's the shapes package, but it provides no insight on how to use them in xml. The best I can do so far is finding other people's examples. Is there some magical documentation that exists for the XML shapes?

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  • not able to draw image on canvas of surface view in Android

    - by Fayaz Ali
    I am drawing an image using drawbitmap method on a canvas of surface view which is an overlay surface on my camera preview.The image drawn is a portion of captured image to guide the user to capture next image with a proper overlap.Now when I am launching the activity as the application start activity i.e it is my first activity,it works fine and draws the image.But when I launch the same activity from some other activity,the surface view is not show anything. Is there any difference between launching an activity from another activity and from the application launch. Anyone help here please!

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  • Where to start to learn Android?

    - by Tuffy G
    I want to start making a program for a local charity on the Android platform. Where can go I for resources and tutorials to learn? I'm very new at this, so would like something simple that can be followed by someone with minimal technical knowledge.

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  • How SQLite on Android handles long stings?

    - by Levara
    Hi! I'm wondering how Android's implementation of SQLite handles long Strings. Reading from online documentation on sqlite, it said that strings in sqlite are limited to 1 million characters. My strings are definitely smaller. I'm creating a simple RSS application, and after parsing a html document, and extracting text, I'm having problem saving it to a database. I have 2 tables in database, feeds and articles. RSS feeds are correctly saved and retrieved from feeds table, but when saving to the articles table, logcat is saying that it cannot save extracted text to it's column. I don't know if other columns are making problems too, no mention of them in logcat. I'm wondering, since text is from an article on web, are signs like (",',;) creating problems? Is Android automaticaly escaping them, or I have to do that. I'm using a technique for inserting similar to one in notepad tutorial: public long insertArticle(long feedid, String title, String link, String description, String h1, String h2, String h3, String p, String image, long date) { ContentValues initialValues = new ContentValues(); initialValues.put(KEY_FEEDID, feedid); initialValues.put(KEY_TITLE, title); initialValues.put(KEY_LINK, link); initialValues.put(KEY_DESCRIPTION, description ); initialValues.put(KEY_H1, h1 ); initialValues.put(KEY_H2, h2); initialValues.put(KEY_H3, h3); initialValues.put(KEY_P, p); initialValues.put(KEY_IMAGE, image); initialValues.put(KEY_DATE, date); return mDb.insert(DATABASE_TABLE_ARTICLES,null, initialValues); } Column P is for extracted text, h1, h2 and h3 are for headers from a page. Logcat reports only column p to be the problem. The table is created with following statement: private static final String DATABASE_CREATE_ARTICLES = "create table articles( _id integer primary key autoincrement, feedid integer, title text, link text not null, description text," + "h1 text, h2 text, h3 text, p text, image text, date integer);"; Thanks!

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  • Strange behaviour of Android debugger in Eclipse when using Camera for preview.

    - by Buzzy
    Hi, I have an Android application that uses a SurfaceView subclass and Camera object to preview images before capture. Once I capture an image, I stop the preview and release the camera. Execution stops at any breakpoint after this. However, apart from the "Suspend" and "Terminate" icons, the rest are disabled. This is strange because the "Debug Current Instruction Pointer" is clearly at the said breakpoint and execution is already suspended. I can't perform any debugging operations and have no option but to terminate the session. Sometimes (very rarely), the session terminates by itself. I can confirm that this odd behavior takes place only after I preview the camera capture. I am fairly new to Android development. Is there some obvious mistake I am making? Any help would be highly appreciated.

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