BubbleImageView.java 文件源码

private void setup() {
    if (mBitmap == null) {
        return;
    }

    mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP,
            Shader.TileMode.CLAMP);

    mBitmapPaint = new Paint();
    mBitmapPaint.setAntiAlias(true);
    mBitmapPaint.setShader(mBitmapShader);

    mBitmapHeight = mBitmap.getHeight();
    mBitmapWidth = mBitmap.getWidth();

    updateShaderMatrix();
    invalidate();
}