Swipe to Refresh

Syntax#

setColorSchemeResources sets the colors of the SwipeToRefreshLayout indicator
setOnRefreshListener sets what to do when layout is swiped
app:layout_behavior=“@string/appbar_scrolling_view_behavior” if you have a Toolbar with your layout, add this with the scrollFlags in Toolbar and the Toolbar will slide up while scrolling down and slide in again while scrolling up.

Swipe To Refresh with RecyclerView

To add a Swipe To Refresh layout with a RecyclerView add the following to your Activity/Fragment layout file:

<android.support.v4.widget.SwipeRefreshLayout
    android:id="@+id/refresh_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:scrollbars="vertical" />

</android.support.v4.widget.SwipeRefreshLayout>

In your Activity/Fragment add the following to initialize the SwipeToRefreshLayout:

    SwipeRefreshLayout mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.refresh_layout);
    mSwipeRefreshLayout.setColorSchemeResources(R.color.green_bg,
            android.R.color.holo_green_light,
            android.R.color.holo_orange_light,
            android.R.color.holo_red_light);

    mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
        @Override
        public void onRefresh() {
            // Execute code when refresh layout swiped
        }
    });

How to add Swipe-to-Refresh To your app

Make sure the following dependency is added to your app’s build.gradle file under dependencies:

compile 'com.android.support:support-core-ui:24.2.0'

Then add the SwipeRefreshLayout in your layout:

<android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipe_refresh_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

     <!-- place your view here -->       

</android.support.v4.widget.SwipeRefreshLayout>

Finally implement the SwipeRefreshLayout.OnRefreshListener listener.

mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);
mSwipeRefreshLayout.setOnRefreshListener(new OnRefreshListener() {
    @Override
    public void onRefresh() {
         // your code
    }
});