Question

一个cusomized UINavigationBar要求我提供一个自定义的“后退”按钮，我使用navigationItem.leftBarButtonItem = myCustomizedButton，但它的位置是固定的。

有人会如此友好地分享如何将此按钮40像素移到右边？

Answer 1

您可以创建一个比图像大40像素的包含视图。以40像素偏移量添加图像。将包含视图添加为leftBarButtonItem。

代码如下：

// Create a containing view to position the button
UIView *containingView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, barButtonImage.size.width + 40, barButtonImage.size.height)] autorelease];

// Create a custom button with the image
UIButton *barUIButton = [UIButton buttonWithType:UIButtonTypeCustom];
[barUIButton setImage:barButtonImage forState:UIControlStateNormal];
barUIButton.frame = CGRectMake(40, 0, barButtonImage.size.width, barButtonImage.size.height);
[barUIButton addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];

[containingView addSubview:barUIButton];

// Create a container bar button
UIBarButtonItem *containingBarButton = [[[UIBarButtonItem alloc] initWithCustomView:containingView] autorelease];

// Add the container bar button
navigationItem.leftBarButtonItem = containingBarButton;

Answer 2

您可以在navBar上显示的图片中添加空白区域。我遇到了同样的问题，这是我找到解决它的唯一解决方案。有点棘手，但它有效...

在iOS上，我如何水平移动navigationItem.leftBarButtonItem？

2 个答案: