Android and iOs tips

Question

I am developing an application that shows the different photos from server and user can set selected photos as wallpaper of its device i used given code to set wallpaper it working but image was not set properly it not fit to screen. I used this code.


            String dirPath = getFilesDir().toString();

        String folder = mPhotos.get(nextPosition - 1).getCategory();
        String filePath = dirPath + "/PhotoViewer/" + folder + "/"
                + mPhotos.get(nextPosition - 1).getFileName();
        File imageFile = new File(filePath);
        Bitmap bitmap = BitmapFactory.decodeFile(imageFile
                .getAbsolutePath());
        WallpaperManager myWallpaperManager = WallpaperManager
                .getInstance(getApplicationContext());
        try {
            myWallpaperManager.setBitmap(bitmap);
            Toast.makeText(PhotoActivity.this, "Wallpaper set",
                    Toast.LENGTH_SHORT).show();
        } catch (IOException e) {
            Toast.makeText(PhotoActivity.this, "Error setting wallpaper",
                    Toast.LENGTH_SHORT).show();
        }

Please help me out.

Answer 1 · 2013-04-09 03:49:54Z

You can try resizing your bitmap like this


   DisplayMetrics displayMetrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
    int height = displayMetrics.heightPixels;
    int width = displayMetrics.widthPixels << 1; // best wallpaper width is twice screen width

    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeFile(path, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, width, height);

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    Bitmap decodedSampleBitmap = BitmapFactory.decodeFile(path, options);

    WallpaperManager wm = WallpaperManager.getInstance(this);
    try {
        wm.setBitmap(decodedSampleBitmap);
    } catch (IOException e) {
        Log.e(TAG, "Cannot set image as wallpaper", e);
    }

Answer 2 · 2013-04-09 03:51:40Z

To set wallpaper in android use below code: By using WallpaperManager Class


Button buttonSetWallpaper = (Button)findViewById(R.id.set);
            ImageView imagePreview = (ImageView)findViewById(R.id.preview);
            imagePreview.setImageResource(R.drawable.five);

            buttonSetWallpaper.setOnClickListener(new Button.OnClickListener(){
            @Override
            public void onClick(View arg0) {
            // TODO Auto-generated method stub
            WallpaperManager myWallpaperManager 
            = WallpaperManager.getInstance(getApplicationContext());
            try {
                myWallpaperManager.setResource(R.drawable.five);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            }});



Need to set permission in Manifest:

Android and iOs tips

Monday, April 8, 2013

[android help] How can i set Wallpaper in android using coding?

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