Reputation: 3035
I have created a password protected app. The app is allowed to run in background. When it returns to foreground, I display an alert to prompt the user for password, by overriding the applicationWillEnterForeground: method in appdelegate like so-
- (void)applicationWillEnterForeground:(UIApplication *)application
{
if (/*password is enabled*/) {
alertview = [[UIAlertView alloc] initWithTitle:@"LOGIN"
message:@"Enter app password"
delegate:self
cancelButtonTitle:nil
otherButtonTitles:nil];
alertview.alertViewStyle = UIAlertViewStyleSecureTextInput;
pwdTF = [alertview textFieldAtIndex:0];
[pwdTF setDelegate:self];
[alertview show];
}
}
However, the alert takes a little time to appear. During this time, the view remains vulnerable.
Is there a way to make uialertview show instantly?
Upvotes: 0
Views: 746
Reputation: 2225
dispatch_async(dispatch_get_main_queue(), ^{
<# Write UI related code to be executed on main queue #>
});
Upvotes: 5