yushaojian13

public class BitmapUtils {

    /**
     * scale source bitmap to specific width and height remaining the aspect ratio.
     * If source bitmap aspect ratio is not the same with target ((float) dstWidth / dstHeight),
     * then one dimension will scaled to the target value, and another will be filled with 0 alpha pixels
     *
     * @param src       source bitmap
     * @param dstWidth  target width
     * @param dstHeight target height

yushaojian13

public class ImageSaveTask extends AsyncTask<String, Void, Void> {
    private Context context;

    public ImageSaveTask(Context context) {
        this.context = context;
    }

    @Override
    protected Void doInBackground(String... params) {
        if (params == null || params.length < 2) {

yushaojian13

public Bitmap blurBitmap(Bitmap bitmap){
		
		//Let's create an empty bitmap with the same size of the bitmap we want to blur
		Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
		
		//Instantiate a new Renderscript
		RenderScript rs = RenderScript.create(getApplicationContext());
		
		//Create an Intrinsic Blur Script using the Renderscript
		ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));