在自定义UIBarButtonItem周围设置边框 [英] Setting border around custom UIBarButtonItem

问题描述

我想将自定义按钮作为导航栏右按钮项。这是代码：

I want to put a custom button as right navigation bar button item. Here is the code:

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    [button setImage:[UIImage imageNamed:@"my.png"] forState:UIControlStateNormal];
    [button addTarget:self action:@selector(filterResult) forControlEvents:UIControlEventTouchUpInside];
    [button setFrame:CGRectMake(0, 0, 50, 50)];
self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:button] autorelease];

问题是我只能看到图像而不是周围的按钮，就像UIBarButtonSystemItemAdd一样或其他类型。

The problem is that I can see only the image and not the button around it like it comes for UIBarButtonSystemItemAdd or other types.

我该怎么办？

推荐答案

[button setImage:[UIImage imageNamed:@"my.png"] forState:UIControlStateNormal];

将整个图像替换为指定状态。您必须绘制完整的图像，而不仅是其上的图标（或所需的任何图像）。

replaces the entire image for the specified state. You have to draw the full own image and not only the icon on it (or whatever you want).

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