private void initPaint() {
        mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
        mBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.miui_nine);
        mBitmapRect = new Rect(0, 0, mBitmap.getWidth(), mBitmap.getHeight());
    }
author : engineer
e-mail : yingkongshi11@gmail.com
time   : 2017/12/17
desc   :
version: 1.0
app/src/main/java/home/smart/fly/animations/master/widget/MasterFilterView.java