IOS 7 Study - Displaying an Image on a Navigation Bar

最新推荐文章于 2023-04-09 11:30:36 发布

转载最新推荐文章于 2023-04-09 11:30:36 发布 · 203 阅读

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原文链接：http://www.cnblogs.com/davidgu/p/3557340.html

本文介绍如何在iOS应用中使用UIImageView替换UINavigationController中的默认文本标题。通过设置viewcontroller的navigationItem.titleView属性，可以将UIImageView加载的图片作为标题显示，实现更美观的UI效果。

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Problem
You want to display an image instead of text as the title of the current view controller
on the navigation controller

Solution
Use the titleView property of the view controller’s navigation item

- (void)viewDidLoad {
    [super viewDidLoad];

    /* Create an Image View to replace the Title View */
    UIImageView *imageView =
        [[UIImageView alloc]
        initWithFrame:CGRectMake(0.0f, 0.0f, 100.0f, 40.0f)];
    imageView.contentMode = UIViewContentModeScaleAspectFit;

    /* Load an image. Be careful, this image will be cached */
    UIImage *image = [UIImage imageNamed:@"Logo"];

    /* Set the image of the Image View */
    [imageView setImage:image];
    
    /* Set the Title View */
    self.navigationItem.titleView = imageView;
}