HolographicOutlineHelper.java 文件源码

private HolographicOutlineHelper(Context context) {
    final float scale = LauncherAppState.getInstance().getScreenDensity();

    mMediumOuterBlurMaskFilter = new BlurMaskFilter(scale * 2.0f, BlurMaskFilter.Blur.OUTER);
    mThinOuterBlurMaskFilter = new BlurMaskFilter(scale * 1.0f, BlurMaskFilter.Blur.OUTER);
    mMediumInnerBlurMaskFilter = new BlurMaskFilter(scale * 2.0f, BlurMaskFilter.Blur.NORMAL);

    mShaowBlurMaskFilter = new BlurMaskFilter(scale * 4.0f, BlurMaskFilter.Blur.NORMAL);
    mShadowOffset = (int) (scale * 2.0f);
    shadowBitmapPadding = (int) (scale * 4.0f);

    mDrawPaint.setFilterBitmap(true);
    mDrawPaint.setAntiAlias(true);
    mBlurPaint.setFilterBitmap(true);
    mBlurPaint.setAntiAlias(true);
    mErasePaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_OUT));
    mErasePaint.setFilterBitmap(true);
    mErasePaint.setAntiAlias(true);
}