如何在 UIToolbar 中的 UIProgressView 上方添加标签？

发布于 2024-09-12 13:43:26 字数 416 浏览 4 评论 0原文

我有一个 UIToolbar，其中已成功放置 UIProgressView。然而，我看到一些应用程序在 UIProgressView 上方包含一个小标签，它告诉用户程序正在做什么以及正在取得进展 - 例如下载文件。然而，这似乎无法在 UI Builder 中完成。关于在工具栏中添加 UIProgressView 标签的最佳方法有什么想法吗？这是我感兴趣的：

+------------------------------------------------+
|         Uploading File                         |
| ================--------------------  [CANCEL] |
+------------------------------------------------+

原文

I have a UIToolbar in which I have placed a UIProgressView successfully. However, I have seen some apps contain a small label above the UIProgressView which tells the user what the program is doing where progress is being made -- e.g. to download a file. However it seems that this cannot be done in UI Builder. Any ideas on the best way to add the label ablve the UIProgressView in the toolbar? Here is what I am interested in:

+------------------------------------------------+
|         Uploading File                         |
| ================--------------------  [CANCEL] |
+------------------------------------------------+

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好菇凉咱不稀罕他 2024-09-19 13:43:26

创建一个自定义 UIView，其中包含 UILabel 和 UIProgressView 作为子视图。然后将自定义 UIView 插入工具栏中。

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冰雪梦之恋 2024-09-19 13:43:26

实际上，您还可以将文本作为子视图直接添加到 UIProgressView 中，例如：

UIProgressView *videoProgressView = [[UIProgressView alloc] initWithFrame:CGRectMake(40, self.view.frame.size.height/2, self.view.frame.size.width - 80, 40)];

UILabel *processing = [[UILabel alloc] initWithFrame:CGRectMake(0, -50, videoProgressView.frame.size.width, 25)];
processing.text = @"Processing Video...";
processing.textAlignment = NSTextAlignmentCenter;

[videoProgressView addSubview:processing];

[self.view addSubview:videoProgressView];

只需确保 UIProgressView 的 clipsToBounds 属性设置为 NO。

You can actually also add text directly to a UIProgressView as a subview, ex:

UIProgressView *videoProgressView = [[UIProgressView alloc] initWithFrame:CGRectMake(40, self.view.frame.size.height/2, self.view.frame.size.width - 80, 40)];

UILabel *processing = [[UILabel alloc] initWithFrame:CGRectMake(0, -50, videoProgressView.frame.size.width, 25)];
processing.text = @"Processing Video...";
processing.textAlignment = NSTextAlignmentCenter;

[videoProgressView addSubview:processing];

[self.view addSubview:videoProgressView];

Just make sure UIProgressView's clipsToBounds property is set to NO.

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药祭#氼 2024-09-19 13:43:26

以下是我的项目中使用的 Lyndsey Scott 的答案的 Swift 5 实现：

let view = UIApplication.topViewController()!.view!

let progressView = UIProgressView(progressViewStyle: .default)
progressView.center = view.center
progressView.trackTintColor = .gray
progressView.frame = CGRect(x: 40, y: view.frame.size.height / 2, width: view.frame.size.width - 80, height: 40)
      
let progressViewLabel = UILabel(frame: CGRect(x: 0, y: -50, width: progressView.frame.size.width, height: 25))
progressViewLabel.text = "Migrating database:"
progressViewLabel.textAlignment = .center
      
progressView.addSubview(progressViewLabel)
      
view.addSubview(progressView)

Here's a Swift 5 implementation of Lyndsey Scott's answer used in my project:

let view = UIApplication.topViewController()!.view!

let progressView = UIProgressView(progressViewStyle: .default)
progressView.center = view.center
progressView.trackTintColor = .gray
progressView.frame = CGRect(x: 40, y: view.frame.size.height / 2, width: view.frame.size.width - 80, height: 40)
      
let progressViewLabel = UILabel(frame: CGRect(x: 0, y: -50, width: progressView.frame.size.width, height: 25))
progressViewLabel.text = "Migrating database:"
progressViewLabel.textAlignment = .center
      
progressView.addSubview(progressViewLabel)
      
view.addSubview(progressView)

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