ShadowGenerator.java 文件源码

private ShadowGenerator() {
    mIconSize = LauncherAppState.getInstance().getInvariantDeviceProfile().iconBitmapSize;
    mCanvas = new Canvas();
    mBlurPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
    mBlurPaint.setMaskFilter(new BlurMaskFilter(mIconSize * BLUR_FACTOR, Blur.NORMAL));
    mDrawPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
}