@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
mRootView = inflater.inflate(R.layout.fragment_article_detail, container, false);
mDrawInsetsFrameLayout =
(DrawInsetsFrameLayout) mRootView.findViewById(R.id.draw_insets_frame_layout);
mDrawInsetsFrameLayout.setOnInsetsCallback(
new DrawInsetsFrameLayout.OnInsetsCallback() {
@Override
public void onInsetsChanged(Rect insets) {
mTopInset = insets.top;
}
});
mScrollView = (ObservableScrollView) mRootView.findViewById(R.id.scrollview);
mScrollView.setCallbacks(
new ObservableScrollView.Callbacks() {
@Override
public void onScrollChanged() {
mScrollY = mScrollView.getScrollY();
getActivityCast().onUpButtonFloorChanged(mItemId, ArticleDetailFragment.this);
mPhotoContainerView.setTranslationY((int) (mScrollY - mScrollY / PARALLAX_FACTOR));
updateStatusBar();
}
});
mPhotoView = (ImageView) mRootView.findViewById(R.id.photo);
mPhotoContainerView = mRootView.findViewById(R.id.photo_container);
mStatusBarColorDrawable = new ColorDrawable(0);
mRootView
.findViewById(R.id.share_fab)
.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View view) {
startActivity(
Intent.createChooser(
ShareCompat.IntentBuilder.from(getActivity())
.setType("text/plain")
.setText("Some sample text")
.getIntent(),
getString(R.string.action_share)));
}
});
bindViews();
updateStatusBar();
return mRootView;
}
private void updateStatusBar() {
int color = 0;
if (mPhotoView != null && mTopInset != 0 && mScrollY > 0) {
float f =
progress(
mScrollY,
mStatusBarFullOpacityBottom - mTopInset * 3,
mStatusBarFullOpacityBottom - mTopInset);
color =
Color.argb(
(int) (255 * f),
(int) (Color.red(mMutedColor) * 0.9),
(int) (Color.green(mMutedColor) * 0.9),
(int) (Color.blue(mMutedColor) * 0.9));
}
mStatusBarColorDrawable.setColor(color);
mDrawInsetsFrameLayout.setInsetBackground(mStatusBarColorDrawable);
}