ios - 为什么收到推送通知后launchOptions为nil？

Question

收到推送通知并通过点击通知打开应用程序后，在 didFinishLaunchWithOptions 中收到 nil 的可能原因是什么？我已经仔细检查应用程序是否已停止，而不仅仅是在后台。并且 nil 仍然总是写入日志。

我没有在 didFinishLaunchWithOptions 中执行任何特殊操作，代码如下:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    [MA init];
    NSLog(@"%@", launchOptions);
    if (!launchOptions) {
        return YES;
    }
    id userInfo = launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey];

    if (userInfo[@"aps"] && userInfo[@"id"]) {
        MAResult* result = [[MA data] resultById:userInfo[@"id"]];
        if (result) {
            [((UINavigationController *)self.window.rootViewController) pushViewController:[[MATaskDetails alloc] initWithResults:result] animated:YES];
        }
    }

    return YES;
}

Answer 1

您可以尝试使用 didReceiveRemoteNotification 委托(delegate)方法

- (void)application:(UIApplication *)application
   didReceiveRemoteNotification:(NSDictionary *)userInfo
{
[MA init];
    NSLog(@"%@", Received Notification);
    if (userInfo[@"aps"] && userInfo[@"id"]) {
        MAResult* result = [[MA data] resultById:userInfo[@"id"]];
        if (result) {
            [((UINavigationController *)self.window.rootViewController) pushViewController:[[MATaskDetails alloc] initWithResults:result] animated:YES];
        }
    }
  }

希望对你有帮助......!