Home | History | Annotate | Download | only in com.example.android.lnotifications 
      1 /*
      2 * Copyright 2014 The Android Open Source Project
      3 *
      4 * Licensed under the Apache License, Version 2.0 (the "License");
      5 * you may not use this file except in compliance with the License.
      6 * You may obtain a copy of the License at
      7 *
      8 *     http://www.apache.org/licenses/LICENSE-2.0
      9 *
     10 * Unless required by applicable law or agreed to in writing, software
     11 * distributed under the License is distributed on an "AS IS" BASIS,
     12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13 * See the License for the specific language governing permissions and
     14 * limitations under the License.
     15 */
     16 
     17 package com.example.android.lnotifications;
     18 
     19 import android.app.ActionBar;
     20 import android.app.Activity;
     21 import android.app.Fragment;
     22 import android.app.FragmentTransaction;
     23 import android.os.Bundle;
     24 
     25 /**
     26  * Launcher Activity for the L Notification samples application.
     27  */
     28 public class LNotificationActivity extends Activity {
     29 
     30     @Override
     31     protected void onCreate(Bundle savedInstanceState) {
     32         super.onCreate(savedInstanceState);
     33         setContentView(R.layout.activity_notification);
     34         setTitle(R.string.title_lnotification_activity);
     35         ActionBar actionBar = getActionBar();
     36 
     37         // Use ViewPager in the support library where possible.
     38         // At this time, the support library for L is not ready so using the deprecated method
     39         // to create tabs.
     40         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
     41         ActionBar.Tab tabHeadsUpNotification = actionBar.newTab().setText("Heads Up");
     42         ActionBar.Tab tabVisibilityMetadata = actionBar.newTab().setText("Visibility");
     43         ActionBar.Tab tabOtherMetadata = actionBar.newTab().setText("Others");
     44         tabHeadsUpNotification.setTabListener(new FragmentTabListener(HeadsUpNotificationFragment
     45                 .newInstance()));
     46         tabVisibilityMetadata.setTabListener(new FragmentTabListener(VisibilityMetadataFragment
     47                 .newInstance()));
     48         tabOtherMetadata.setTabListener(new FragmentTabListener(OtherMetadataFragment.newInstance
     49                 ()));
     50         actionBar.addTab(tabHeadsUpNotification, 0);
     51         actionBar.addTab(tabVisibilityMetadata, 1);
     52         actionBar.addTab(tabOtherMetadata, 2);
     53     }
     54 
     55     /**
     56      * TabListener that replaces a Fragment when a tab is clicked.
     57      */
     58     private static class FragmentTabListener implements ActionBar.TabListener {
     59         public Fragment fragment;
     60 
     61         public FragmentTabListener(Fragment fragment) {
     62             this.fragment = fragment;
     63         }
     64 
     65         @Override
     66         public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
     67             //do nothing.
     68         }
     69 
     70         @Override
     71         public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
     72             ft.replace(R.id.container, fragment);
     73         }
     74 
     75         @Override
     76         public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
     77             ft.remove(fragment);
     78         }
     79     }
     80 }
     81