在某些情况下,我的iOS应用程序必须同时触发多个UILocalNotification.我想决定用户点击的UILocalNotification.当用户单击UILocalNotification时,该应用程序处于非活动状态或在后台.问题是该方法
func application(application: UIApplication,didReceiveLocalNotification notification: UILocalNotification) {
被称为每个触发的UILocalNotification.所以当应用程序变得活跃时,这个方法被多次调用,因为我收到了多个UILocalNotification.有没有办法确定哪个UILocalNotification是应用程序打开的原因？对applicationState的检查不起作用,因为当应用程序处于非活动状态或在后台时,所有UILocalNotification都已被接收.
非常感谢！
编辑：
作为一个很好的例子：当您从两个不同的组A和B收到WhatsApp消息,并从组A中选择推送通知时,应用程序打开后立即显示. WhatsApp和我的用例之间的区别是我有本地通知.
解决方法
在计划通知时,您可以为通知userinfo设置一些唯一的ID.
UILocalNotification *notif = [[UILocalNotification alloc] init];
notif.fireDate = [NSDate dateWithTimeIntervalSinceNow:10];
notif.timeZone = [NSTimeZone defaultTimeZone];
// set the your data with unique id
NSMutableDictionary *dict=[NSMutableDictionary new];
[dict setObject:Id forKey:@"id"];
// assignt the dictionary to user info
notif.userInfo=dict;
notif.alertBody = @"test Notification";
notif.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] scheduleLocalNotification:notif];
你可以通过didReceiveLocalNotification获得用户信息
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
if ([[notification.userInfo valueForKey:@"id"] isEqualToString:@"1"])
{
NSLog(@"notification id %@",[notification.userInfo valueForKey:@"id"]);
}
else if ([[notification.userInfo valueForKey:@"id"] isEqualToString:@"2"])
{
NSLog(@"notification id %@",[notification.userInfo valueForKey:@"id"]);
}
////// or /////
if ([notification.userInfo valueForKey:@"id"] )
{
NSLog(@"id of notification %@",[notification.userInfo valueForKey:@"id"]);
}
}
来自didFinishLaunchingWithOptions
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
if ([launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey])
{
UILocalNotification *notif=[launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
NSLog(@"notif.userInfo %@",notif.userInfo);
// notif.userInfo {
// id = 2;
// }
}
return YES;
}
