HolographicOutlineHelper.java 文件源码

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

    mMinOuterBlurRadius = (int) (scale * 1.0f);
    mMaxOuterBlurRadius = (int) (scale * 12.0f);

    mExtraThickOuterBlurMaskFilter = new BlurMaskFilter(scale * 12.0f, BlurMaskFilter.Blur.OUTER);
    mThickOuterBlurMaskFilter = new BlurMaskFilter(scale * 6.0f, BlurMaskFilter.Blur.OUTER);
    mMediumOuterBlurMaskFilter = new BlurMaskFilter(scale * 2.0f, BlurMaskFilter.Blur.OUTER);
    mThinOuterBlurMaskFilter = new BlurMaskFilter(scale * 1.0f, BlurMaskFilter.Blur.OUTER);
    mExtraThickInnerBlurMaskFilter = new BlurMaskFilter(scale * 6.0f, BlurMaskFilter.Blur.NORMAL);
    mThickInnerBlurMaskFilter = new BlurMaskFilter(scale * 4.0f, BlurMaskFilter.Blur.NORMAL);
    mMediumInnerBlurMaskFilter = new BlurMaskFilter(scale * 2.0f, BlurMaskFilter.Blur.NORMAL);

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