HolographicOutlineHelper.java 文件源码

private HolographicOutlineHelper(Context context) {
    Resources res = context.getResources();

    float mediumBlur = res.getDimension(R.dimen.blur_size_medium_outline);
    mMediumOuterBlurMaskFilter = new BlurMaskFilter(mediumBlur, BlurMaskFilter.Blur.OUTER);
    mMediumInnerBlurMaskFilter = new BlurMaskFilter(mediumBlur, BlurMaskFilter.Blur.NORMAL);

    mThinOuterBlurMaskFilter = new BlurMaskFilter(
            res.getDimension(R.dimen.blur_size_thin_outline), BlurMaskFilter.Blur.OUTER);

    mShadowBlurMaskFilter = new BlurMaskFilter(
            res.getDimension(R.dimen.blur_size_click_shadow), BlurMaskFilter.Blur.NORMAL);

    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);
}