ios - UIAlertController 之间的转换

Question

我需要做的是呈现一个带有进度条的警报 Controller 。下载完成后，我需要成功转换到辅助警报 Controller !消息和一个“确定”按钮，供用户退出此设置。我已经单独构建了警报并且它们自己运行良好(进度条有点工作...)但是使用此代码:

我希望当 progressBar 达到 100% 时，第一个警报 Controller 将被关闭，下一个警报将出现，但什么也没有发生这是我的代码:

-(void)settingUpToolsProgressPopUp {
 UIAlertController* progressAlert = [UIAlertController alertControllerWithTitle:@"Setting up tools ..." message:@"This could take a few minutes. Make sure to keep your tools near your mobile device." preferredStyle:UIAlertControllerStyleAlert];
 [self presentViewController:progressAlert animated:YES completion:^{
 //Progress bar setup
 UIProgressView *progressView;
 progressView = [[UIProgressView alloc]initWithFrame:CGRectMake(8.0, 98.0, progressAlert.view.frame.size.width - 16, 100.0)];

 [[progressView layer]setCornerRadius:50];
 progressView.trackTintColor = [UIColor whiteColor];
 progressView.progressTintColor = [UIColor blueColor];
      progressNumerator = 1.0;
      progressDenominator = 1.0;
      currentProgress = (float)(progressNumerator/progressDenominator);
      [progressView setProgress: currentProgress animated:YES];
 [progressAlert.view addSubview:progressView];

  if(currentProgress > 1.0){
      [self settingUpToolsProgressPopUp];
 } else if(currentProgress == 1.0){
      [self dismissViewControllerAnimated:YES completion:nil];
      [self successAlertPopUp];
 }

 }];


 }

附注我知道这些值现在是硬编码的......但无论我使用任何值，转换都不会发生。我还没有访问更新值的权限，所以我现在不能使用其他值...但我希望如果我使用 100% 的值，那么转换无论如何都会发生？

谁能给我指出正确的方向？为什么这段代码不能在这些 Controller 之间进行转换？

非常感谢!

Answer 1

您需要在 dismissViewControllerAnimated 的完成处理程序中调用 successAlertPopUp 方法:

[self dismissViewControllerAnimated:YES completion:^{
    [self successAlertPopUp];
}];