跳转控制器弹框没有更新，亲

[sunhdmn]

UIAlertController *alertV = [UIAlertController alertControllerWithTitle:@"进入应用" message:nil preferredStyle: UIAlertControllerStyleAlert];
[alertV addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {

    NSLog(@"点击取消");

}]];
[self presentViewController:alertV animated:YES completion:nil];

[fuzheng0301]

适用于iOS7.0以上的，用UIAlertController目前来说还不太合适