我刚刚使用以下代码升级了注册 iOS 10 的整个 iOS 推送通知:
-(void)registerForNotifications{
if(SYSTEM_VERSION_GRATERTHAN_OR_EQUALTO(@"10.0")){
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
center.delegate = self;
[center requestAuthorizationWithOptions:(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge) completionHandler:^(BOOL granted, NSError * _Nullable error){
dispatch_async(dispatch_get_main_queue(), ^(void){
if(!error){
[[UIApplication sharedApplication] registerForRemoteNotifications];
}
});
}];
}
else {
if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)])
{
UIUserNotificationType types = (UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound);
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:types categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:settings];
[[UIApplication sharedApplication] registerForRemoteNotifications];
}
}
}
我的所有代表都设置在我的 AppDelegate 中。
编辑:我现在已经能够进一步确定问题。当应用程序在通知推送后返回前台时,委托:
- (void)applicationWillEnterForeground:(UIApplication *)application {
// Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}
仅在大约 10-15 秒后调用,而通常它显然是立即调用的。这怎么可能?
我现在正在使用 Localytics 测试推送通知并实现:
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler {
在我的 AppDelegate 中用于深度链接。当我添加断点时,我看到这种情况发生了:我正确地收到了推送通知,我点击它,然后应用程序 UI 冻结了大约 10 秒。然后,最后,调用 didReceiveNotificationResponse 并进行深度链接。
如何避免冻结应用程序的巨大延迟?
编辑:它甚至比我更糟糕。当我将 iPhone 连接到 xCode 并在手机上运行构建时,它会在工作前冻结十秒钟。然后,如果我只是运行完全相同的构建而不在 xCode 上运行它(所以没有断点),应用程序会冻结 10 秒然后崩溃。