[英]Customize navigation bar button in iOS6
根据Alexander Merchi在这篇文章( UINavigationBar中的UIBarButtonItem Custom视图)中给出的答案,找到了一个解决方案。 但仍然不知道如何正确改变图像的位置。
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
[btn setFrame:CGRectMake(0, 0, 28.0f, 28.0f)]; // 28 points is the width or height of the button image
[btn setBackgroundImage:[UIImage imageNamed:@"button.png"] forState:UIControlStateNormal];
[btn addTarget:self action:@selector(onClickMenuButton) forControlEvents:UIControlEventTouchUpInside];
btnMenu = [[UIBarButtonItem alloc] initWithCustomView:btn];
在iOS 6中,目标是这样的:
而目前的结果是这样的:
我的代码是
btnMenu = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"button.png"]
style:UIBarButtonItemStylePlain
target:self
action:@selector(onClickMenuButton)];
button.png是白色的圆圈,里面有白色的三个条纹和一个透明的背景。
UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeCustom];
rightButton.frame = CGRectMake(0, 0, 30, 30);
[rightButton setImage:[UIImage imageNamed:@"Button-normal"] forState:UIControlStateNormal];
[rightButton setImage:[UIImage imageNamed:@"logout-hover"] forState:UIControlStateHighlighted];
[rightButton addTarget:self action:@selector(logOut) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:rightButton];
self.navigationItem.leftBarButtonItem = rightBarButtonItem;
我正在完成它
UIImageView *uView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"btn_back_ontouch_scr11.png"]];
UIButton *leftButton = [UIButton buttonWithType:UIButtonTypeCustom];
leftButton.bounds = CGRectMake( 0, 0, uView.frame.size.width, uView.frame.size.height );
[leftButton setImage:uView.image forState:UIControlStateHighlighted];
[leftButton setImage:[UIImage imageNamed:@"btn_back_normal_scr11.png"]forState:UIControlStateNormal];
[leftButton addTarget:self.navigationController action:@selector(popViewControllerAnimated:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *aButton = [[UIBarButtonItem alloc] initWithCustomView:leftButton];
self.scrollView.indicatorStyle=UIScrollViewIndicatorStyleWhite;
self.navigationItem.leftBarButtonItem = aButton;
self.navigationItem.hidesBackButton = YES;
这应该工作。
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