BaseActivity.java 文件源码

/**
 * To update the action bar logo from an Uri.
 *
 * @param uri logo uri
 */
void updateLogo(Uri uri) {
    Target target = new Target() {
        @Override
        public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
            getSupportActionBar().setLogo(new BitmapDrawable(getResources(), bitmap));
        }

        @Override
        public void onBitmapFailed(Drawable errorDrawable) {
        }

        @Override
        public void onPrepareLoad(Drawable placeHolderDrawable) {
        }
    };
    final int maxSize = getResources().getDimensionPixelSize(R.dimen.abc_action_button_min_height_material);
    picasso.load(uri).placeholder(android.R.color.black).resize(maxSize, maxSize).into(target);
}