iOS Local Notification学习笔记

转自：http://blog.csdn.net/alexjames_83/article/details/7481750

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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UILocalNotification *localNotification = [[UILocalNotification alloc] init];

// 设置notification的属性
localNotification.fireDate = [startTimePicker.picker.date dateByAddingTimeInterval:36000]; //出发时间
localNotification.alertBody = @"Time To Schedule Our Service"; // 消息内容
localNotification.repeatInterval = NSSecondCalendarUnit; // 重复的时间间隔
localNotification.soundName = UILocalNotificationDefaultSoundName; // 触发消息时播放的声音
localNotification.applicationIconBadgeNumber = 1; //应用程序Badge数目

//设置随Notification传递的参数
NSDictionary *infoDict = [NSDictionary dictionaryWithObjectsAndKeys:@"reminder", @"notificationId", @"phone", txtPhone.text, nil];
localNotification.userInfo = infoDict;

[[UIApplication sharedApplication] scheduleLocalNotification:localNotification]; //注册
[localNotification release]; //释放

遍历已经注册的所有LocaleNotification

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

撤销LocaleNotification

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[[UIApplication sharedApplication] cancelAllLocalNotifications]; // 撤销所有的Notification
<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>
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<p><strong>响应事件</strong></p>
<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>
<ul>
<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 {
NSLog(@"Notification Body: %@", notification.alertBody);
NSLog(@"%@", notification.userInfo);
application.applicationIconBadgeNumber = notification.applicationIconBadgeNumber-1;
}</pre><br>
</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>
<pre name="code" class="cpp">- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UILocalNotification *localNotification =
[launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
if (localNotification) {
NSLog(@"Notification Body: %@",localNotification.alertBody);
NSLog(@"%@", localNotification.userInfo);
application.applicationIconBadgeNumber = localNotification.applicationIconBadgeNumber-1;
}
// set up everything else
return YES;
</pre>}<br>
</li></ul>

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