iOS UIAlertController UIAlertView 几秒钟消失的提示

UIAlertView版（iOS9.0以后废弃）
//操作提示
- (void)showAlert:(NSString *)message disappear:(BOOL)disappear {
    dispatch_async(dispatch_get_main_queue(), ^{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:message delegate:nil cancelButtonTitle:!disappear?@"OK":nil otherButtonTitles:nil, nil];
    [alert show];
    if (disappear) {
        double delayInSeconds = 1.2;
        dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
        dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
            [alert dismissWithClickedButtonIndex:alert.cancelButtonIndex animated:YES];
        });
    }
         });
}

//调用
[self showAlert:@"介里系累容" disappear:YES];

UIAlertController版（苹果支持用的）

//操作提示
- (void)showDismissWithTitle:(NSString *)title  message:(NSString *)message parent:(UIViewController *)parentController {
    dispatch_async(dispatch_get_main_queue(), ^{
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];
        [self presentViewController:alert animated:YES completion:nil];

        double delayInSeconds = 1.2;
        dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
        dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
            [alert dismissViewControllerAnimated:YES completion:nil];
        });
    });
}

//调用
[self showDismissWithTitle:@"" message:@"累容载介里" parent:self];