解决NavgationBar里面UIBarButtonItem点击范围过大的问题
问题
大家肯定都自定义过NavgationBar的返回按钮吧，按照下面方法设置的时候，会有点击范围过大的问题
UIButton *leftButton = [UIButton buttonWithType:UIButtonTypeCustom];
leftButton.frame = CGRectMake(0, 0, 30, 30);
leftButton.backgroundColor = [UIColor redColor];
[leftButton addTarget:self action:@selector(leftButtonAction) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *leftItem = [[UIBarButtonItem alloc] initWithCustomView:leftButton];
self.navigationItem.leftBarButtonItem = leftItem;
Paste_Image.png
解决
在Button外面包一层View就可以了，就会是正常的Button的点击范围了
UIButton *leftButton = [UIButton buttonWithType:UIButtonTypeCustom];
leftButton.frame = CGRectMake(0, 0, 30, 30);
leftButton.backgroundColor = [UIColor redColor];
[leftButton addTarget:self action:@selector(leftButtonAction) forControlEvents:UIControlEventTouchUpInside];
UIView *menuButtonContainer = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
[menuButtonContainer addSubview:leftButton];
UIBarButtonItem *leftItem = [[UIBarButtonItem alloc] initWithCustomView:menuButtonContainer];
self.navigationItem.leftBarButtonItem = leftItem;
观察
尝试了好多应用，基本上都有这个现象，不是很细心的人根本发现不了，但是我开发的APP返回按钮给的图片太小了😂 效果十分明显的，找到解决方法以后，发现按钮太小了，button的frame是根据图片大小来的，不打算改成正常的了 (;￢＿￢)
