Question

我创建了4个带图像的BarButtons，当我添加到导航栏时。它显示了项目之间的巨大差距，以及如何消除图像之间的差距。

Answer 1

你可以通过维护这样的图像插入来实现这一点： -

UIBarButtonItem *demoButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"demo.png"] style:UIBarButtonItemStyleBordered target:self action:@selector(saveStyle)];

demoButton.imageInsets = UIEdgeInsetsMake(0.0, 0.0, 0, -60);

Answer 2

固定项目可以帮助你维持你的差距。将图像添加到按钮。

UIBarButtonItem *fixedItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
    fixedItem.width = 10.;  

    UIButton *button1 = [[UIButton alloc]initWithFrame:CGRectMake(0., 0., 44., 44)];
    UIBarButtonItem *barButton1 = [[UIBarButtonItem alloc]initWithCustomView: button1];

    UIButton *button2 = [[UIButton alloc]initWithFrame:CGRectMake(46., 0., 44., 44)];
    UIBarButtonItem *barButton2 = [[UIBarButtonItem alloc]initWithCustomView: button2];

    UIButton *button3 = [[UIButton alloc]initWithFrame:CGRectMake(95., 0., 44., 44)];
    UIBarButtonItem *barButton3 = [[UIBarButtonItem alloc]initWithCustomView: button3];

    NSArray *itemArray = [[NSArray alloc] initWithObjects: barButton1, fixedItem, barButton2, fixedItem, barButton3, nil];

    self.navigationItem.rightBarButtonItems = itemArray;

在rightBarButtonItems中添加条形按钮

2 个答案: