Add sample for SwipeRefreshLayout

Author: grantland

ParseUI-Widget-Sample/src/main/java/com/parse/ui/widget/sample/ListActivity.java

@@ -3,6 +3,7 @@
 import android.database.DataSetObserver;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.support.v4.widget.SwipeRefreshLayout;
 import android.support.v7.app.AppCompatActivity;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -32,8 +33,33 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
 
     ListView listView = (ListView) findViewById(R.id.list);
 
-    MyAdapter<ParseObject> adapter = new MyAdapter<>(createPager());
+    final MyAdapter<ParseObject> adapter = new MyAdapter<>(createPager());
     listView.setAdapter(adapter);
+
+    final SwipeRefreshLayout refreshLayout = (SwipeRefreshLayout) findViewById(R.id.refresh);
+    refreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
+      @Override
+      public void onRefresh() {
+        final ParseQueryPager<ParseObject> pager = createPager();
+        pager.loadNextPage(new FindCallback<ParseObject>() {
+          @Override
+          public void done(List<ParseObject> objects, ParseException e) {
+            refreshLayout.setRefreshing(false);
+
+            if (objects == null && e == null) { // cancelled
+              return;
+            }
+
+            if (e != null) {
+              return;
+            }
+
+            adapter.swap(pager);
+            adapter.notifyDataSetChanged();
+          }
+        });
+      }
+    });
   }
 
   private ParseQueryPager<ParseObject> createPager() {

ParseUI-Widget-Sample/src/main/res/layout/activity_list.xml

@@ -1,10 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              android:layout_width="match_parent"
-              android:layout_height="match_parent">
+             android:layout_width="match_parent"
+             android:layout_height="match_parent">
 
-    <ListView
-        android:id="@+id/list"
+    <android.support.v4.widget.SwipeRefreshLayout
+        android:id="@+id/refresh"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"/>
+        android:layout_height="match_parent">
+
+        <ListView
+            android:id="@+id/list"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"/>
+
+    </android.support.v4.widget.SwipeRefreshLayout>
 </FrameLayout>