Java Code Examples for android.graphics.BitmapFactory#decodeResourceStream()

public static Bitmap decodeResourceStream(Resources res, TypedValue value, InputStream is, Rect pad) {
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeResourceStream(res, value, is, pad, options);
    options.inSampleSize = 1;
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB) {
        options.inMutable = true;
        Bitmap inBitmap = GlideBitmapPool.getBitmap(options.outWidth, options.outHeight, options.inPreferredConfig);
        if (inBitmap != null && Util.canUseForInBitmap(inBitmap, options)) {
            options.inBitmap = inBitmap;
        }
    }
    options.inJustDecodeBounds = false;
    try {
        return BitmapFactory.decodeResourceStream(res, value, is, pad, options);
    } catch (Exception e) {
        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB) {
            options.inBitmap = null;
        }
        return BitmapFactory.decodeResourceStream(res, value, is, pad, options);
    }
}
 

public static Bitmap decodeResourceStream(Resources res, TypedValue value, InputStream is, Rect pad, int reqWidth, int reqHeight) {
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeResourceStream(res, value, is, pad, options);
    options.inSampleSize = Util.calculateInSampleSize(options, reqWidth, reqHeight);
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB) {
        options.inMutable = true;
        Bitmap inBitmap = GlideBitmapPool.getBitmap(options.outWidth, options.outHeight, options.inPreferredConfig);
        if (inBitmap != null && Util.canUseForInBitmap(inBitmap, options)) {
            options.inBitmap = inBitmap;
        }
    }
    options.inJustDecodeBounds = false;
    try {
        return BitmapFactory.decodeResourceStream(res, value, is, pad, options);
    } catch (Exception e) {
        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB) {
            options.inBitmap = null;
        }
        return BitmapFactory.decodeResourceStream(res, value, is, pad, options);
    }
}
 

private Bitmap getBitmapFromResource(int resId, TypedValue value) {
	InputStream original = super.openRawResource(resId, value);
	value.density = getDisplayMetrics().densityDpi;
	final BitmapFactory.Options options = new BitmapFactory.Options();
       options.inDither = false;
       options.inScaled = false;
       options.inScreenDensity = getDisplayMetrics().densityDpi;
	return BitmapFactory.decodeResourceStream(
			this, value, original, 
			new Rect(), options);
}
 

/**
 * Decode and sample down a bitmap from resources to the requested width and height.
 *
 * @param res The resources object containing the image data
 * @param resId The resource id of the image data
 * @param reqWidth The requested width of the resulting bitmap
 * @param reqHeight The requested height of the resulting bitmap
 * @param cache The Cache used to find candidate bitmaps for use with inBitmap
 * @return A bitmap sampled down from the original with the same aspect ratio and dimensions
 *         that are equal to or greater than the requested width and height
 */
public static Bitmap decodeSampledBitmapFromResource(Resources res, int resId, int reqWidth, int reqHeight,
        boolean keepAspectRatio, Cache cache) {

    // BEGIN_INCLUDE (read_bitmap_dimensions)
    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeResource(res, resId, options);

    options.inSampleSize = calculateInSampleSize(options.outWidth, options.outHeight, reqWidth, reqHeight);

    // END_INCLUDE (read_bitmap_dimensions)

    // If we're running on Honeycomb or newer, try to use inBitmap
    if (Utils.hasHoneycomb()) {
        addInBitmapOptions(options, cache);
    }

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    Bitmap bitmap = null;
    InputStream is = null;

    try {
        final TypedValue value = new TypedValue();
        is = res.openRawResource(resId, value);

        bitmap = BitmapFactory.decodeResourceStream(res, value, is, null, options);
    } catch (Exception e) {
        /*  do nothing.
            If the exception happened on open, bm will be null.
            If it happened on close, bm is still valid.
        */
    }

    if (bitmap == null && options != null && options.inBitmap != null) {
        throw new IllegalArgumentException("Problem decoding into existing bitmap");
    }

    ExifInterface ei = getExifInterface(is);

    return scaleAndRotateBitmap(bitmap, ei, reqWidth, reqHeight, keepAspectRatio);
}
 

@DoNotStrip
private static Bitmap originalDecodeResourceStream(
    Resources res, TypedValue value, InputStream is, Rect pad, BitmapFactory.Options opts) {
  return BitmapFactory.decodeResourceStream(res, value, is, pad, opts);
}