本文介绍了将自定义按钮添加到无边框导航控制器的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我将自定义按钮添加到导航控制器
<上一页>UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"back.png"]样式:UIBarButtonItemStylePlain目标:自己动作:@selector(backAction)];self.navigationItem.leftBarButtonItem = backButton;它工作正常，但按钮出现边框.我该如何解决?
更新我找到了解决方案
<上一页>UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 25, 25)];[按钮 setImage:[UIImage imageNamed:@"back.png"] forState:UIControlStateNormal];[按钮 addTarget:self action:@selector(buttonFavoriteClicked) forControlEvents:UIControlEventTouchUpInside];UIBarButtonItem *back = [[UIBarButtonItem alloc] initWithCustomView:button];[按钮释放]；self.navigationItem.leftBarButtonItem = back; 解决方案
试试这个.
UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, button_width, button_height)];[backButton setImage:[UIImage imageNamed:@"back.png"] forState:UIControlStateNormal];[backButton addTarget:self action:@selector(backAction) forControlEvents:UIControlEventTouchUpInside];self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];I add custom button to navigation controller
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"back.png"]
style:UIBarButtonItemStylePlain
target:self
action:@selector(backAction)];
self.navigationItem.leftBarButtonItem = backButton;
it works fine, but button appears bordered. How can I fix that?
UPDATE I found solution
UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 25, 25)];
[button setImage:[UIImage imageNamed:@"back.png"] forState:UIControlStateNormal];
[button addTarget:self action:@selector(buttonFavoriteClicked) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *back = [[UIBarButtonItem alloc] initWithCustomView:button];
[button release];
self.navigationItem.leftBarButtonItem = back;
解决方案
Try this.
UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, button_width, button_height)];
[backButton setImage:[UIImage imageNamed:@"back.png"] forState:UIControlStateNormal];
[backButton addTarget:self action:@selector(backAction) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
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