Showing cellular data is turned off alert

问题:

How can I show this alert view? I know that I need check connection with reachability, but how do I show this alert with settings and ok button? I need it for iOS 6.

回答1:

Unfortunately in iOS 5.1 and later you can't open settings app from your app.

If you are using lesser version the following will work.

Create the Alert view like:

UIAlertView *cellularData = [[UIAlertView alloc] initWithTitle: @"Cellular Data is Turned Off" message:@"Turn on ellular data or use Wi-Fi to access data"  delegate:self cancelButtonTitle:@"OK" otherButtonTitles:@"Settings", nil];
[cellularData show];

Implement the clickedButtonAtIndex like:

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
   if(buttonIndex == 1)
   {
      [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=General&path=Network"]]
   }
}

It'll open the settings app from your application.