Add an UIProgressView or UIActivityIndicatorView to your UIAlertView

dadalan

于 2009-06-26 14:57:00 发布

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分类专栏： iphone

本文链接：https://blog.youkuaiyun.com/dadalan/article/details/4300880

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本文介绍了一种在iOS应用中创建进度提示视图的方法，包括加载活动指示器或进度条，并展示了如何通过Objective-C代码实现这些功能。

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- (void) createProgressionAlertWithMessage:(NSString *)message withActivity:(BOOL)activity
{
  progressAlert = [[UIAlertView alloc] initWithTitle: message
                                             message: @"Please wait..."
                                            delegate: self
                                   cancelButtonTitle: nil
                                   otherButtonTitles: nil];
  
  
  // Create the progress bar and add it to the alert
  if (activity) {
    activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
    activityView.frame = CGRectMake(139.0f-18.0f, 80.0f, 37.0f, 37.0f);
    [progressAlert addSubview:activityView];
    [activityView startAnimating];
  } else {
    progressView = [[UIProgressView alloc] initWithFrame:CGRectMake(30.0f, 80.0f, 225.0f, 90.0f)];
    [progressAlert addSubview:progressView];
    [progressView setProgressViewStyle: UIProgressViewStyleBar];
  }
  [progressAlert show];
  [progressAlert release];
}