远程推送时 , 应用可能处于下列三种状态:

     (1) . 应用开启时 , 应用在前台

    (2) . 应用开启时 , 应用在后台

    (3) . 应用未启动(应用被杀死)

从苹果APNS服务器远程推送时:

1 . 如果应用处于 (1) 状态 , 则不会发出声音 , 会直接调用appDelegate的代理方法didReceiveRemoteNotification,此时如果想收到类似系统的弹窗提示,则需要自定义弹窗,提示音,振动(弹窗可以参考 : ForeNotification  (本地下载))

AudioServicesPlaySystemSound(1007);//系统提示音
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);//震动

2 . 如果应用处于 (2) 状态 , 则会发出提示音, 点击推送消息 , 则会调用appDelegate的代理方法didReceiveRemoteNotification

3 . 如果应用处于 (3) 状态,则会发出提示音 , 点击推送消息 , 则会开启应用 , 在下面这个方法中会带上launchOptions这个参数,如果实现了application:didReceiveRemoteNotification:fetchCompletionHandler:这个方法,则会调用这个方法

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
 NSDictionary *remoteNotification = [launchOptions objectForKey: UIApplicationLaunchOptionsRemoteNotificationKey];

 if (remoteNotification) {
 //自定义的BOOL值,用来标记是从通知启动的应用
 self.isLaunchedByNotification = YES;
 }else{

 }
 [self checkIsLaunchedByNotification];

 return YES;
}

收到远程推送后 , 可以跳转到消息界面 :

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
 NSDictionary *aps = [userInfo valueForKey:@"aps"];

 NSDictionary *alert = [aps valueForKey:@"alert"];

 NSString * body = alert[@"body"];

 if ([UIApplication sharedApplication].applicationState == UIApplicationStateActive) {
 //处于前台时
 
 [EBForeNotification handleRemoteNotification:@{@"aps":@{@"alert":[NSString stringWithFormat:@"%@",body]}} soundID:1312];
 
 }else{
 
 //处于后台时
 
 [self gotoMessageVC];
 }
}

#pragma mark - 检测是否从通知栏启动得应用

- (void)checkIsLaunchedByNotification{
 
 if (self.isLaunchedByNotification) {
 
 [self gotoMessageVC];
 
 }
}

#pragma mark - 点击了通知菜单(当应用在前台时,收到推送,点击了自定义的弹窗,调用的方法)

- (void)clickBannerView:(NSNotification *)notification{
 
 NSDictionary * dict = notification.object;
 
 [self gotoMessageVC];
}

#pragma mark - 跳转到消息界面(点击通知菜单／点击通知栏启动应用时)

- (void)gotoMessageVC{
 
 if([self.window.rootViewController isEqual:self.tabBarController]){
 
 if([self.tabBarController.selectedViewController isKindOfClass:[UINavigationController class]]){
  UINavigationController * nav = self.tabBarController.selectedViewController;
  
  if (![nav.topViewController isKindOfClass:[MessagesViewController class]]) {
  
  MessagesViewController *messageVC = [[MessagesViewController alloc] init];
  
  messageVC.hidesBottomBarWhenPushed = YES;
  
  [nav.visibleViewController.navigationController pushViewController:messageVC animated:YES];
  }
 }
 }
}