BlogDetailDelegate.java 文件源码

private Transformation getTransformation(final String t) {
    return new Transformation() {
        @Override
        public Bitmap transform(Bitmap b) {
            Palette.from(b).generate(new Palette.PaletteAsyncListener() {
                @Override
                public void onGenerated(final Palette palette) {
                    int defaultColor = rootView.getResources().getColor
                            (android.R.color.white);
                    int titleColor = palette.getLightVibrantColor
                            (defaultColor);
                    CollapsingToolbarLayout collapsingToolbar = get(R.id
                            .collapsing_toolbar);
                    collapsingToolbar.setExpandedTitleColor(titleColor);
                }
            });
            return b;
        }

        @Override
        public String key() {
            return t;
        }
    };
}