1 2<h3>Activity</h3> 3<dl> 4 <dt><a href="HelloWorld.html">Hello World</a></dt> 5 <dd>Demonstrates a basic screen activity. 6 <dl> 7 <dt>Code: 8 <dd> <a href="HelloWorld.html">HelloWorld.java</a> 9 <dt>Layout: 10 <dd> <a href="../../../../../../res/layout/hello_world.html"> 11 hello_world.xml</a> 12 </dl> 13 </dd> 14 <dt><a href="SaveRestoreState.html">Save & Restore State</a></dt> 15 <dd>Demonstrates how an activity should save state when it is paused.</dd> 16 17 <dt><a href="PersistentState.html">Persistent State</a></dt> 18 <dd>Demonstrates how you can save and restore preferences, which are stored 19 even after the user closes the application. </dd> 20 21 <dt><a href="ReceiveResult.html">Receive Result</a></dt> 22 <dd>Demonstrates how an activity screen can return a result to the 23 activity that opened it. </dd> 24 25 <dt><a href="Forwarding.html">Forwarding</a></dt> 26 <dd>Demonstrates opening a new activity and removing the current activity 27 from the history stack, so that when the user later presses BACK they will 28 not see the intermediate activity.</dd> 29 30 <dt><a href="RedirectEnter.html">Redirection</a></dt> 31 <dd>Demonstrates how to save data to preferences and use it to determine 32 which activity to open next.</dd> 33 34 <dt><a href="TranslucentActivity.html">Translucent</a></dt> 35 <dd>Demonstrates how to make an activity with a transparent background. </dd> 36 37 <dt><a href="TranslucentBlurActivity.html">TranslucentBlur</a></dt> 38 <dd>Demonstrates how to make an activity with a transparent background with 39 a special effect (blur). </dd> 40</dl> 41 42<h3>Service</h3> 43<dl> 44 <dt><a href="LocalService.html">Local Service Controller and 45 Local Service Binding</a></dt> 46 <dd>Demonstrate the implementation of a service that runs in the same 47 process as its client(s). Shows how those clients can either start/stop it 48 with {@link android.content.Context#startService 49 Context.startService} and {@link android.content.Context#stopService 50 Context.stopService}, or bind and call it with 51 {@link android.content.Context#bindService Context.bindService} and 52 {@link android.content.Context#unbindService Context.unindService}. 53 This also shows how you can simplify working 54 with a service when you know it will only run in your own process.</dd> 55 56 <dt><a href="RemoteService.html">Remote Service Controller and 57 Remove Service Binding</a></dt> 58 <dd>Demonstrates starting a service in a separate process, by assigning 59 <code>android:process=":remote"</code> to the service in the 60 AndroidManifest.xml file. Shows how those clients can either start/stop it 61 with {@link android.content.Context#startService 62 Context.startService} and {@link android.content.Context#stopService 63 Context.stopService}, or bind and call it with 64 {@link android.content.Context#bindService Context.bindService} and 65 {@link android.content.Context#unbindService Context.unindService}. 66 Binding is similar to the local service sample, 67 but illustrates the additional work (defining aidl 68 interfaces) needed to interact with a service in another process. Also 69 shows how a service can publish multiple interfaces and implement 70 callbacks to its clients.</dd> 71 72 <dt><a href="ServiceStartArguments.html">Service Start Arguments Controller</a></dt> 73 <dd>Demonstrates how you can use a Service as a job queue, where you 74 submit jobs to it with {@link android.content.Context#startService 75 Context.startService} instead of binding to the service. Such a service 76 automatically stops itself once all jobs have been processed. This can be 77 a very convenient way to interact with a service when you do not need 78 a result back from it.</dd> 79 80 <dt><a href="ForegroundService.html">Foreground Service Controller</a></dt> 81 <dd>Shows how you 82 can write a Service that runs in the foreground and works on both pre-2.0 83 and post-2.0 versions of the platform. This example will selectively use 84 the new foreground APIs that were introduced in Android 2.0 if they are 85 available.</dd> 86 87</dl> 88 89<h3>Alarm</h3> 90<dl> 91 <dt><a href="AlarmController.html">Alarm Controller</a></dt> 92 <dd>Demonstrates two ways you can schedule alarms: a one-shot alarm that 93 will happen once at a given time, and a repeating alarm that will happen 94 first at a given time and then continually trigger at regular intervals 95 after that. 96 <dl> 97 <dt>Code: 98 <dd> <a href="AlarmController.html">AlarmController.java</a> 99 <dd> <a href="OneShotAlarm.html">OneShotAlarm.java</a> 100 <dd> <a href="RepeatingAlarm.html">RepeatingAlarm.java</a> 101 <dt>Layout: 102 <dd> <a href="../../../../../../res/layout/alarm_controller.html"> 103 alarm_controller.xml</a> 104 </dl> 105 </dd> 106 107 <dt><a href="AlarmService.html">Alarm Service</a></dt> 108 <dd>Demonstrates how you can schedule an alarm that causes a service to 109 be started. This is useful when you want to schedule alarms that initiate 110 long-running operations, such as retrieving recent e-mails. 111 <dl> 112 <dt>Code: 113 <dd> <a href="AlarmService.html">AlarmService.java</a> 114 <dd> <a href="AlarmService_Service.html">AlarmService_Service.java</a> 115 <dt>Layout: 116 <dd> <a href="../../../../../../res/layout/alarm_service.html"> 117 alarm_service.xml</a> 118 </dl> 119 </dd> 120</dl> 121 122<h3>Notification</h3> 123<dl> 124 <dt><a href="NotifyWithText.html">NotifyWithText</a></dt> 125 <dd>Demonstrates popup notifications of varying length.</dd> 126 127 <dt><a href="IncomingMessage.html">IncomingMessage</a></dt> 128 <dd> Demonstrates sending persistent and transient notifications, with a View object in the notification. It also demonstrated inflating a View object from an XML layout resource. </dd> 129</dl> 130 131<h3>Search</h3> 132<dl> 133 <dt><a href="SearchInvoke.html">SearchInvoke</a></dt> 134 <dd>Demonstrates various ways in which activities can launch the Search UI.</dd> 135 136 <dt><a href="SearchQueryResults.html">SearchQueryResults</a></dt> 137 <dd>Demonstrates an activity that receives Search intents and handles them.</dd> 138 139 <dt><a href="SearchSuggestionSampleProvider.html">SearchSuggestionSampleProvider</a></dt> 140 <dd>Demonstrates how to configure and use the built-in "recent queries" suggestion provider.</dd> 141</dl> 142 143 144