自定义UINavigationBar背景 [英] Custom UINavigationBar Background

问题描述

我一直在尝试为我的整个NavigationBar设置一个自定义背景（不仅仅是titleView），但一直在苦苦挣扎。

I've been trying to set up a custom background for the whole of my NavigationBar (not just the titleView) but have been struggling.

我找到了这个帖子

http ：//discussions.apple.com/thread.jspa？threadID = 1649012& tstart = 0

但我不确定如何实现代码片段给出。代码是作为新类实现的吗？另外我在哪里实例化 UINavigationController ，因为我有一个使用NavigationView模板构建的应用程序，因此根据示例

But am not sure how to implement the code snippet that is given. Is the code implemented as a new class? Also where do I instatiate the UINavigationController as I have an application built with the NavigationView template so it is not done in my root controller as per the example

推荐答案

你只需要像这样重载drawRect：

You just have to overload drawRect like that :

@implementation UINavigationBar (CustomImage)
- (void)drawRect:(CGRect)rect {
    UIImage *image = [UIImage imageNamed: @"NavigationBar.png"];
    [image drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
}
@end

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