Question

我将图像添加到导航控制器后退按钮，如下所示：

self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"ITButton.png"] style:UIBarButtonItemStyleBordered target:nil action:nil];

它工作正常，因此，我的图像与＆lt;回符号。图像略高于符号，我希望两者都居中。我不知道为什么。我尝试使用以下方法进行调整：

[self.navigationItem.backBarButtonItem setImageInsets:UIEdgeInsetsMake(10, 0, 0, 0)];

但没有改变。

Answer 1

有很多方法可以解决这个问题，我遇到了同样的问题然后我已经解决了这个问题

-(void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    if([self.navigationController.viewControllers objectAtIndex:0] != self)
    {
        UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 26, 26)];
        [backButton setImage:[UIImage imageNamed:@"home.png"] forState:UIControlStateNormal];
        [backButton setShowsTouchWhenHighlighted:TRUE];
        [backButton addTarget:self action:@selector(popViewControllerWithAnimation) forControlEvents:UIControlEventTouchDown];
        UIBarButtonItem *barBackItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
        self.navigationItem.hidesBackButton = TRUE;
        self.navigationItem.leftBarButtonItem = barBackItem;

    }
}

-(void)popViewControllerWithAnimation
{
    [self.navigationController popViewControllerAnimated:YES];

}

定位图像导航栏后退按钮

1 个答案: