android get Bitmap or sound from assets

Question

I need to get Bitmap and sound from assets. I try to do like this:

BitmapFactory.decodeFile(\"file:///android_asset/Files/Numbers/l1.png\");

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Answer 1

Method to get bitmap of image which is stored in Assets folder.

       public static Bitmap getBitmapFromAssets(Context context, String fileName, int width, int height) {
        AssetManager assetManager = context.getAssets();

        InputStream istr;
        Bitmap bitmap = null;
        try {
            final BitmapFactory.Options options = new BitmapFactory.Options();
            options.inJustDecodeBounds = true;

            istr = assetManager.open(fileName);

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

            // Decode bitmap with inSampleSize set
            options.inJustDecodeBounds = false;
            return BitmapFactory.decodeStream(istr, null, options);
        } catch (IOException e) {
            Log.e("hello", "Exception: " + e.getMessage());
        }

        return null;
    }

Method to resize the bitmap.

 private static int calculateInSampleSize(
            BitmapFactory.Options options, int reqWidth, int reqHeight) {
        // Raw height and width of image
        final int height = options.outHeight;
        final int width = options.outWidth;
        int inSampleSize = 1;

        if (height > reqHeight || width > reqWidth) {

            final int halfHeight = height / 2;
            final int halfWidth = width / 2;

            // Calculate the largest inSampleSize value that is a power of 2 and keeps both
            // height and width larger than the requested height and width.
            while ((halfHeight / inSampleSize) >= reqHeight
                    && (halfWidth / inSampleSize) >= reqWidth) {
                inSampleSize *= 2;
            }
        }

        return inSampleSize;
    }