ios - 如何在 uiAlert 上添加另一个将用户引导至 Facebook 的按钮？

Question

我需要添加一个按钮 Facebook，然后操作应该将用户带到 Facebook，我只是不确定如何从下面的代码中做到这一点？

-(IBAction)btContinueClick:(id)sender{

    if(Level == [list count]){

        UIAlertView *info = [[UIAlertView alloc]initWithTitle:@"Good" message:@"Go to facebook?" delegate:self cancelButtonTitle:@"NO" otherButtonTitles:@"Facebook"];
        [info show]; //// Change Game End Message
    }
}

Answer 1

如果你想在 iOS 中转到 Facebook 的原生应用。

使用alertView的委托(delegate)方法

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{

  if(buttonIndex == 1) {
    NSURL *url = [NSURL URLWithString:@"fb://profile"];
    if ([[UIApplication sharedApplication] canOpenURL:url]) { //USE FB NATIVE APP
        [[UIApplication sharedApplication] openURL:url];
    }
    else { //IF THE DEVICE IS UNABLE TO OPEN IN NATIVE APP, USE BROWSER INSTEAD
        NSURL *browserURL = [NSURL URLWithString:@"http://www.facebook.com"];  
        [[UIApplication sharedApplication] openURL:browserURL];
    }
  }
}