ios local notification

做了很多有Push Notification和Locale Notification的app，来整理下开发的笔记。今天先说说Local Notification

在iOS4.0后Apple加入了Local Notification。这里是NSLocaleNotification的Class Reference http://developer.apple.com/library/ios/#documentation/iPhone/Reference/UILocalNotification_Class/Reference/Reference.html

如何注册一个Notification

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1. UILocalNotification *localNotification = [[UILocalNotification alloc] init];  
2.   
3. // 设置notification的属性  
4. localNotification.fireDate = [startTimePicker.picker.date dateByAddingTimeInterval:36000]; //出发时间  
5. localNotification.alertBody = @"Time To Schedule Our Service"; // 消息内容  
6. localNotification.repeatInterval = NSSecondCalendarUnit; // 重复的时间间隔  
7. localNotification.soundName = UILocalNotificationDefaultSoundName; // 触发消息时播放的声音  
8. localNotification.applicationIconBadgeNumber = 1; //应用程序Badge数目  
9.   
10. //设置随Notification传递的参数  
11. NSDictionary *infoDict = [NSDictionary dictionaryWithObjectsAndKeys:@"reminder", @"notificationId", @"phone", txtPhone.text, nil];  
12. localNotification.userInfo = infoDict;  
13.       
14. [[UIApplication sharedApplication] scheduleLocalNotification:localNotification]; //注册  
15. [localNotification release]; //释放  

遍历已经注册的所有LocaleNotification

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1.     NSArray *notifications = [[UIApplication sharedApplication] scheduledLocalNotifications];  
2.     for (UILocalNotification *notification in notifications ) {  
3.         if( [[notification.userInfo objectForKey:@"source"] isEqualToString:@"dailyReminder"] ) {  
4.             [[UIApplication sharedApplication] cancelLocalNotification:notification];  
5.             break;  
6.         }  
7.     }  

撤销LocaleNotification

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1. [[UIApplication sharedApplication] cancelAllLocalNotifications]; // 撤销所有的Notification  
2. <pre name="code" class="cpp">[[UIApplication sharedApplication] cancelLocalNotification:notification]; // 撤销某个Notificiation，若要删除某个特定的Notification，则可以在UserInfo中加入标记，遍历所有的Notification来删除。</pre>  
3. <pre></pre>  
4. <p></p>  
5. <pre></pre>  
6. <strong></strong>  
7. <p></p>  
8. <p></p>  
9. <p><strong>响应事件</strong></p>  
10. <p>当Notification被触发后，你的应用需要对此作出反应。应用此时可能会处于以下几个状态：</p>  
11. <ul>  
12. <li>在前台运行 - 当应用在前台运行时，则ApplicationDelegate的didReceiveLocalNotification会被调用。<pre name="code" class="cpp">- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {  
13.     NSLog(@"Notification Body: %@", notification.alertBody);  
14.     NSLog(@"%@", notification.userInfo);  
15.     application.applicationIconBadgeNumber = notification.applicationIconBadgeNumber-1;  
16. }</pre><br>  
17. </li><li>在后台运行 - 用户可以看到类似Push Notification的提醒，若用户选择查看提醒详情，则应用通过 ApplicationDelegate的didFinishLaunchingWithOptions进入<br>  
18. <pre name="code" class="cpp">- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {  
19.     UILocalNotification *localNotification =  
20.     [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];  
21.     if (localNotification) {  
22.         NSLog(@"Notification Body: %@",localNotification.alertBody);  
23.         NSLog(@"%@", localNotification.userInfo);  
24.         application.applicationIconBadgeNumber = localNotification.applicationIconBadgeNumber-1;  
25.     }  
26.     // set up everything else  
27.     return YES;  
28. </pre>}<br>  
29. </li></ul>