我使用UIAlertController和UIActivityIndicatorView作为我的加载指示器,它将关闭,直到我的应用程序获得服务器响应。但是当我的服务器或网络出现问题时,我的应用程序永远不会得到响应,我无法从AlertView取回我的控制权,我想知道是否有一些方法可以通过触摸屏幕关闭此AlertView。 而我的UIAlertView没有标题和任何按钮。 任何提示都会很感激。
当我触摸屏幕时它崩溃了,这是我的代码:
UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil
message:@"正在装载页面...\n\n"
preferredStyle:UIAlertControllerStyleAlert];
UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
spinner.center = CGPointMake(130.5, 65.6);
spinner.color = [UIColor darkGrayColor];
[spinner startAnimating];
[alert.view addSubview:spinner];
UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc]initWithTarget:alert action:@selector(stopWaiting)];
[alert.view addGestureRecognizer:recognizer];
答案 0 :(得分:16)
将警报控制器保存到某个属性(例如alertController
)并使用
[self.alertController dismissViewControllerAnimated:YES completion:nil];
要通过触摸警报来添加轻触手势识别器,以警告控制器的视图:
- (void)showAlert {
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@""
message:@"Some message"
preferredStyle:UIAlertControllerStyleAlert];
UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(closeAlert)];
[alertController.view addGestureRecognizer:tapGestureRecognizer];
self.alertController = alertController;
[self presentViewController:alertController animated:YES completion:nil];
}
- (void)closeAlert {
[self.alertController dismissViewControllerAnimated:YES
completion:nil];
}