ios - 在 rightBarButtonItems 中添加 BarButton

Question

我已经创建了 4 个带有图像的 BarButtons，并且当我添加到导航栏时。它显示了项目之间的大间隙以及如何消除图像之间的间隙。

Answer 1

您可以通过维护这样的图像插图来实现这一点：-

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

固定项目将帮助你保持你的差距。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;