當我們的APP收到推送消息后，通常需要根據推送內容點擊消息進入到指定的頁面
這里講一下收到推送消息后的處理，分為三種情況 ：1.APP處於前台運行情況下
2.APP處於后台掛起情況下
3.APP未啟動情況下
前兩種相對好處理一點，我是在didReceiveRemoteNotification方法里接受到消息后發一個通知給MainViewController，跳轉界面
具體如下：
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
// Required, iOS 7 Support
[JPUSHService handleRemoteNotification:userInfo];
completionHandler(UIBackgroundFetchResultNewData);
// NSLog(@"%@",userInfo);
_notDic = [NSMutableDictionary dictionary];
[_notDic setObject:userInfo[@"ID"] forKey:@"myID"];
[_notDic setObject:userInfo[@"PICPATH"] forKey:@"myPic"];
//判斷應用是在前台還是后台
if ([UIApplication sharedApplication].applicationState == UIApplicationStateActive) {
//第一種情況前台運行
NSString *apnCount = userInfo[@"aps"][@"alert"];
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"推送信息" message:apnCount delegate:self cancelButtonTitle:@"查看" otherButtonTitles:@"取消", nil];
alert.delegate = self;
[alert show];
}else{
//第二種情況后台掛起時
[[NSNotificationCenter defaultCenter]postNotificationName:KJPUSHNOT object:nil userInfo:_notDic];
}
}
第三種程序未啟動時情況下，需要在didFinishLaunchingWithOptions方法里處理，而不能通過通知跳轉頁面，因為這時MainViewController還沒有走viewDidLoad方法，是沒辦法接受通知的，具體代碼如下：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
//判斷是否是通過點擊推送消息進入的APP
NSDictionary *resultDic = launchOptions[@"UIApplicationLaunchOptionsRemoteNotificationKey"];
if (resultDic) {//推送進入APP
self.window.rootViewController = wantVC;
}else{//正常進入APP
self.window.rootViewController = mainVC;
}
return YES;
}