Add empty layout when no hosts found

andrewachen · May 6, 2013 · bec8085 · bec8085
1 parent ad5cff4
commit bec8085
Show file tree

Hide file tree

Showing 4 changed files with 76 additions and 14 deletions.
diff --git a/res/layout/list_hosts_empty.xml b/res/layout/list_hosts_empty.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res/com.nilhcem.hostseditor"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent" >
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:orientation="vertical" >
+
+        <com.nilhcem.hostseditor.widget.TypefacedTextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:gravity="center"
+            android:text="@string/list_empty"
+            android:textSize="24sp"
+            app:typeface="fonts/Roboto-Regular.ttf" />
+
+        <com.nilhcem.hostseditor.widget.TypefacedTextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:gravity="center"
+            android:text="@string/list_empty_desc"
+            android:textSize="12sp"
+            app:typeface="fonts/Roboto-Italic.ttf" />
+    </LinearLayout>
+
+</ScrollView>
diff --git a/res/layout/list_hosts_fragment.xml b/res/layout/list_hosts_fragment.xml
@@ -0,0 +1,21 @@
+<?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" >
+
+    <!-- Hosts list -->
+    <ListView
+        android:id="@+id/listHosts"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+    <!-- Empty layout -->
+    <ViewStub
+        android:id="@+id/listEmptyLayout"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:layout="@layout/list_hosts_empty"
+        android:visibility="gone" />
+
+</FrameLayout>
diff --git a/res/values/strings.xml b/res/values/strings.xml
@@ -22,7 +22,11 @@
     <string name="action_add_comment">Add comment</string>
     <string name="action_remove_comment">Remove comment</string>
 
-    <!-- List host (contextual menu) -->
+    <!-- List hosts (empty layout) -->
+    <string name="list_empty">No \'hosts\' records found.</string>
+    <string name="list_empty_desc">We couldn\'t find any host entry for this device.\nFeel free to add some!</string>
+
+    <!-- List hosts (contextual menu) -->
     <string name="list_menu_selected">%d selected</string>
     <string name="list_menu_edit">Edit</string>
     <string name="list_menu_delete">Delete</string>

diff --git a/src/com/nilhcem/hostseditor/list/ListHostsFragment.java b/src/com/nilhcem/hostseditor/list/ListHostsFragment.java
@@ -16,6 +16,8 @@
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.AdapterView.OnItemLongClickListener;
 import android.widget.ListView;
+import butterknife.InjectView;
+import butterknife.Views;
 
 import com.actionbarsherlock.view.ActionMode;
 import com.actionbarsherlock.view.Menu;
@@ -40,10 +42,10 @@ public class ListHostsFragment extends BaseFragment implements OnItemClickListen
 	private static final String TAG = "ListHostsFragment";
 
 	@Inject HostsManager mHostsManager;
+	@InjectView(R.id.listHosts) ListView mListView;
 	private ListHostsAdapter mAdapter;
 
 	private ActionMode mMode;
-	private ListView mListView;
 	private MenuItem mEditMenuItem;
 
 	@Override
@@ -54,19 +56,23 @@ public void onCreate(Bundle savedInstanceState) {
 
 	@Override
 	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-		if (mListView == null) {
-			mListView = new ListView(mActivity.getApplicationContext());
-			mListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
-			mListView.setFastScrollEnabled(true);
-			mListView.setItemsCanFocus(false);
-			mListView.setOnItemClickListener(this);
-			mListView.setOnItemLongClickListener(this);
+		boolean firstCall = (mListView == null);
+
+		View view = inflater.inflate(R.layout.list_hosts_fragment, container, false);
+		Views.inject(this, view);
+
+		mListView.setAdapter(mAdapter);
+		mListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
+		mListView.setEmptyView(view.findViewById(R.id.listEmptyLayout));
+		mListView.setFastScrollEnabled(true);
+		mListView.setItemsCanFocus(false);
+		mListView.setOnItemClickListener(this);
+		mListView.setOnItemLongClickListener(this);
+
+		if (firstCall) {
 			refreshHosts(false);
-		} else {
-			// detach from container and return the same view
-			((ViewGroup) mListView.getParent()).removeAllViews();
 		}
-		return mListView;
+		return view;
 	}
 
 	@Override
@@ -113,7 +119,6 @@ public void onHostsRefreshed(RefreshHostsEvent hosts) {
 		Log.d(TAG, "Refreshing listview");
 		finishActionMode();
 		mAdapter.updateHosts(hosts.get());
-		mListView.setAdapter(mAdapter);
 		mBus.post(new LoadingEvent(false));
 	}