ios 常用代码

1. ios 自定义弹框

UITestViewController * anni7vc =  [[UITestViewController alloc] init];
    anni7vc.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
    anni7vc.modalPresentationStyle = UIModalPresentationOverCurrentContext;
    [self presentViewController:anni7vc animated:YES completion:^{
        ;
    }];