如何以编程方式创建进度条? [英] How to create progress bar programmatically?

问题描述

我创建了一个带有 IBOutlet 进度条的视图.每当我将视图旋转到横向模式时，它都不会旋转.所以，我需要以编程方式创建进度条.

I created a view with a progress bar with an IBOutlet. Whenever I rotate the view to landscape mode, it is not rotated. So, I need to create the progress bar programmatically.

我该怎么做?

推荐答案

UIProgressView *progressView = [[UIProgressView alloc] init];
progressView.frame = CGRectMake(100,100,100,20);
[self.view addSubview:progressView];

应该让你开始.

我会在 Apple 的文档中阅读视图和视图控制器.iPhone OS 的视图编程指南详细介绍了您想要做什么.如果您还没有阅读 iPhone 应用程序编程指南和 iPhone 开发指南，我会先阅读.

I would read up on views and view controllers in Apple's documentation. The View Programming Guide for iPhone OS goes into quite a bit of detail for what you want to do. If you have not read the iPhone Application Programming Guide and the iPhone Development Guide I would do so first.

所有这些文档都可以在 developer.apple.com 上找到，也可以在 Xcode 的帮助系统中找到.

All of these documents are available on developer.apple.com, and also in the help system of Xcode.

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