Android 9 Development Cookbook - Third Edition

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Although the Swipe-to-Refresh gesture is a common feature these days, it's still good practice to include a menu item (especially for accessibility reasons). Following is a snippet of XML for the menu layout:

<menu xmlns:android="http://schemas.android.com/apk/res/android" > 
    <item 
        android:id="@+id/menu_refresh" 
        android:showAsAction="never" 
        android:title="@string/menu_refresh"/> 
</menu> 

Call your refresh method in the onOptionsItemSelected() callback. When performing a refresh from code, such as from the menu item event, you want to notify SwipeRefreshLayout of the refresh so it can update the UI. Do this with the following code:

SwipeRefreshLayout.setRefreshing(true); 

This tells the SwipeRefreshLayout that a refresh is starting ...