When switch fragment with SwipeRefreshLayout during refreshing, fragment freezes but actually still work

UPDATE: I thought it worked correctly. But after some test trouble still exists *sniff* Then I made a simpler version to see what exactly happen and I get to know that the refreshing fragment which should have been detached still left there. Or exactly, the view of the old fragment left there, on top of the newer fragment. Since RecyclerView's background of my original app is not transparent, so It turned out what I said before. END OF UPDATE I have a `MainActivity` with layout like this: ``` <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent"> <!-- As the main content view, the view below consumes the entire space available using match_parent in both dimensions. --> <FrameLayout android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" /> <!-- android:layout_gravity="start" tells DrawerLayout to treat this as a sliding drawer on the left side for left-to-right languages and on the right side for right-to-left languages. If you're not building against API 17 or higher, use android:layout_gravity="left" instead. --> <!-- The drawer is given a fixed width in dp and extends the full height of the container. --> <fragment android:id="@+id/navigation_drawer" android:layout_width="@dimen/navigation_drawer_width" android:layout_height="match_parent" android:layout_gravity="start" tools:layout="@layout/fragment_navigation_drawer" /> </android.support.v4.widget.DrawerLayout> ``` The fragment `ContentView` I use to fill `@id/container` is configured as: ``` <android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/contentView" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.v7.widget.RecyclerView android:id="@+id/tweet_list" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/grey_300"/> </android.support.v4.widget.SwipeRefreshLayout> ``` And here is `onCreateView()` of `ContentView` ``` @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment View inflatedView = inflater.inflate(R.layout.fragment_content, container, false); mRecyclerView = (RecyclerView) inflatedView.findViewById(R.id.tweet_list); mRecyclerView.setHasFixedSize(false); mLinearLayoutManager = new LinearLayoutManager(getActivity().getApplicationContext()); mRecyclerView.setLayoutManager(mLinearLayoutManager); mTweetList = new ArrayList<Tweet>; mAdapter = new TweetAdapter(mTweetList); mRecyclerView.setAdapter(mAdapter); mRecyclerView.setItemAnimator(new DefaultItemAnimator()); mSwipeRefreshLayout = (SwipeRefreshLayout) inflatedView.findViewById(R.id.contentView); mSwipeRefreshLayout.setOnRefreshListener( ... ); return inflatedView; } ``` Then in `MainActivity` I switch the content to display by switching different `ContentView`. All looks good except one thing: when I switch `ContentView` fragments DURING refreshing by navigation drawer, then content freezes. But actually all things work as usual except you cannot see it.