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 onCreate(Bundle savedInstanceState)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 FragmentTabListener(Fragment fragment)61 public FragmentTabListener(Fragment fragment) { 62 this.fragment = fragment; 63 } 64 65 @Override onTabReselected(ActionBar.Tab tab, FragmentTransaction ft)66 public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) { 67 //do nothing. 68 } 69 70 @Override onTabSelected(ActionBar.Tab tab, FragmentTransaction ft)71 public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) { 72 ft.replace(R.id.container, fragment); 73 } 74 75 @Override onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft)76 public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) { 77 ft.remove(fragment); 78 } 79 } 80 } 81