Change UIAlertView After IOS 8

UIAlertView is deprecated in iOS 8 and later. Therefore, we need to use the latest API to show alert view. To make the code more compatible, we can check the system version and implement the alert view basing the iOS version. Here is the example source code I am using:

[java]
if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@”Error” message:@”Network Error” preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:@”OK” style:UIAlertActionStyleDefault handler:
^(UIAlertAction *action) {
NSLog(@”action is triggered”);
}];
[alert addAction:defaultAction];
[self presentViewController:alert animated:YES completion:
^(void){
NSLog(@”Alert Error Display”);
}];
} else {
//use old alertview
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@”Error” message:@”Network Error” delegate:self cancelButtonTitle:@”OK” otherButtonTitles:nil];
[alert show];
}
[/java]