Android图像处理（类型转换，比例缩放，倒影，圆角）(2)

            (height + height / 2), Config.ARGB_8888); 
    Canvas canvas = new Canvas(bitmapWithReflection); 
    canvas.drawBitmap(bitmap, 0, 0, null); 
    Paint deafalutPaint = new Paint(); 
    canvas 
            .drawRect(0, height, width, height + reflectionGap, 
                    deafalutPaint); 
    canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null); 
    Paint paint = new Paint(); 
    LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0, 
            bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff, 
            0x00ffffff, TileMode.CLAMP); 
    paint.setShader(shader); 
    // Set the Transfer mode to be porter duff and destination in 
    paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN)); 
    // Draw a rectangle using the paint with our linear gradient 
    canvas.drawRect(0, height, width, bitmapWithReflection.getHeight() 
            + reflectionGap, paint); 
    return bitmapWithReflection; 
} 
 
/**
 * 4.将Drawable转化为Bitmap
 * 
 * @param drawable
 * @return
 */ 
public static Bitmap drawableToBitmap(Drawable drawable) { 
    int width = drawable.getIntrinsicWidth(); 
    int height = drawable.getIntrinsicHeight(); 
    Bitmap bitmap = Bitmap.createBitmap(width, height, drawable 
            .getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 
            : Bitmap.Config.RGB_565); 
    Canvas canvas = new Canvas(bitmap); 
    drawable.setBounds(0, 0, width, height); 
    drawable.draw(canvas); 
    return bitmap; 
} 

作者“xSTARx”