增加回到顶部

dome/build.gradle

@@ -25,4 +25,6 @@ dependencies {
     compile 'com.android.support:appcompat-v7:22.2.0'
     compile 'com.facebook.fresco:fresco:0.5.1'
     compile project(':easyrecyclerview')
+    compile 'com.github.clans:fab:1.6.0'
+
 }

dome/src/main/java/com/jude/dome/MainActivity.java

@@ -12,6 +12,7 @@
 import android.widget.CompoundButton;
 
 import com.facebook.drawee.backends.pipeline.Fresco;
+import com.github.clans.fab.FloatingActionButton;
 import com.jude.easyrecyclerview.EasyRecyclerView;
 import com.jude.easyrecyclerview.adapter.RecyclerArrayAdapter;
 
@@ -20,6 +21,7 @@
 
 public class MainActivity extends ActionBarActivity implements RecyclerArrayAdapter.OnLoadMoreListener, SwipeRefreshLayout.OnRefreshListener{
     private EasyRecyclerView recyclerView;
+    private FloatingActionButton top;
     private PersonAdapter adapter;
     private Handler handler;
 
@@ -31,6 +33,7 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         Fresco.initialize(this);
         setContentView(R.layout.activity_main);
+        top = (FloatingActionButton) findViewById(R.id.top);
         recyclerView = (EasyRecyclerView) findViewById(R.id.recyclerView);
         recyclerView.setLayoutManager(new LinearLayoutManager(this));
         recyclerView.setAdapterWithProgress(adapter = new PersonAdapter(this));
@@ -42,6 +45,12 @@ public void onClick(View v) {
                 adapter.resumeMore();
             }
         });
+        top.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                recyclerView.getRecyclerView().scrollToPosition(0);
+            }
+        });
         recyclerView.setRefreshListener(this);
         handler = new Handler();
         addPerson();

dome/src/main/res/layout/activity_main.xml

@@ -1,4 +1,4 @@
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
@@ -13,4 +13,16 @@
         app:layout_empty="@layout/view_empty"
         app:layout_progress="@layout/view_progress"
         />
-</RelativeLayout>
+
+    <com.github.clans.fab.FloatingActionButton
+        android:id="@+id/top"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="right|bottom"
+        android:layout_margin="16dp"
+        android:src="@drawable/ic_top"
+        app:fab_colorNormal="?colorAccent"
+        app:fab_colorPressed="?colorAccent"
+        app:fab_size="normal" />
+
+</FrameLayout>

dome/src/main/res/layout/item_person.xml

@@ -39,6 +39,7 @@
         </LinearLayout>
 
 
+
         <View
             android:layout_width="match_parent"
             android:layout_height="0.3dp"

easyrecyclerview/src/main/res/layout/layout_progress_recyclerview.xml

@@ -12,8 +12,7 @@
         <android.support.v7.widget.RecyclerView
             android:id="@android:id/list"
             android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:background="@android:color/holo_red_light" />
+            android:layout_height="match_parent" />
 
 
     </android.support.v4.widget.SwipeRefreshLayout>
@@ -22,15 +21,13 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_centerInParent="true"
-        android:background="@android:color/holo_green_light"
         />
 
     <FrameLayout
         android:id="@+id/progress"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_centerInParent="true"
-        android:background="@android:color/holo_blue_light"
         />
 
 </FrameLayout>