自定义Navigationbaritem

最新推荐文章于 2024-08-12 16:25:44 发布

wenluma

最新推荐文章于 2024-08-12 16:25:44 发布

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分类专栏： iphone 文章标签： UIBarButtonItem

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本文详细介绍了如何在iOS应用中自定义Navigation bar item，并通过实例展示了如何使用自定义按钮作为导航栏按钮。文章包括创建图像按钮、设置按钮尺寸、添加点击事件等关键步骤。

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自定义Navigationbaritem

Here's an example that creates a toolbar button from the Facebook logo. Create a pointer to an image (file already added to xCode), create a custom button, change the size of the button to match the image, set image of button, create toolbar button from button view.

UIImage *faceImage = [UIImage imageNamed:@"facebook.png"];
UIButton *face = [UIButton buttonWithType:UIButtonTypeCustom];
face.bounds = CGRectMake( 0, 0, faceImage.size.width, faceImage.size.height );
[face setImage:faceImage forState:UIControlStateNormal];
UIBarButtonItem *faceBtn = [[UIBarButtonItem alloc] initWithCustomView:face];

	2  NavBaritem的 图片确实改过来了

IBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"image.png"] style:UIBarButtonItemStylePlain target:self action:@selector(pp:)]
      3. 
    UIImage *faceImage = [UIImage imageNamed:@"nav_back.png"];
    UIButton *face = [UIButton buttonWithType:UIButtonTypeCustom];    
    face.bounds = CGRectMake( 0, 0, faceImage.size.width, faceImage.size.height );
    [face setImage:faceImage forState:UIControlStateNormal];
   
    [face addTarget:self action:@selector(clickLeftButton) forControlEvents:UIControlEventTouchDown];
    UIBarButtonItem *leftButton = [[UIBarButtonItem alloc] initWithCustomView:face];