Launch app in background automatically?

Question

Is there a way to persist an iOS app in the background such that it starts up automatically when the device is turned on and will re-launch later if terminated? I have read

Answer 1

Yes, you can start your app using APNS.

1) You have to set "content-available" to 1 in the notification body.

2) You have to implement:

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler

3) And have the right background modes: Background Modes

But be careful, your users can turn this off by disabling Background App Refresh in the iPhone Settings. You can check this in code:

[UIApplication sharedApplication].backgroundRefreshStatus!=UIBackgroundRefreshStatusAvailable