如何使用iPhone SDK创建一个大的红色UIButton？ [英] How can I create a big, red UIButton with the iPhone SDK?

问题描述

使用iPhone SDK，如何创建一个类似于删除iPhone上的联系人时使用的红色删除按钮？

Using the iPhone SDK, how would I go about creating a red "delete" button similar to the one used when deleting contacts on the iPhone?

推荐答案

首先从可伸缩的图像开始：

You first start with a stretchable image:

alt text http： //grab.by/4lP

然后你创建一个拉伸图像作为背景的按钮并应用文本。

Then you make a button with the stretched image as the background and apply text.

UIButton *sampleButton = [UIButton buttonWithType:UIButtonTypeCustom];
[sampleButton setFrame:CGRectMake(kLeftMargin, 10, self.view.bounds.size.width - kLeftMargin - kRightMargin, 52)];
[sampleButton setTitle:@"Button Title" forState:UIControlStateNormal];
[sampleButton setFont:[UIFont boldSystemFontOfSize:20]];
[sampleButton setBackgroundImage:[[UIImage imageNamed:@"redButton.png"] stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0] forState:UIControlStateNormal];
[sampleButton addTarget:self action:@selector(buttonPressed) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:sampleButton];

显然，您需要调整框架原点和尺寸以匹配您的应用，以及目标，选择器和标题。

Obviously, you will need to adjust the frame origin and size to match your app, as well as the target, selector, and title.

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