iOS Objective-C UIBarButtonItem设置选择器

Question

我正在创建一个UIBarButtonItem来创建一个后退按钮：

self.backButton = [[UIBarButtonItem alloc] initWithCustomView:backToolbar];
self.backButton.enabled = YES;
self.backButton.imageInsets = UIEdgeInsetsZero;

我想将其选择器设置为：

- (IBAction)goBack:(id)sender {
    NSLog(@"goBack pushed");

    [self.iframeView goBack];
}

将backButton设置为具有goBack选择器的最佳方法是goBack ？

编辑：

@property (strong, nonatomic) IBOutlet UIBarButtonItem *backButton;

Answer 1

一种方法是直接分配给条形按钮项，例如

[backButton setTarget:self];
[backButton setAction:@selector(backButtonPressed:)];

第二种方式是带有已执行操作的按钮的启动栏按钮项目

UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0.0, 0.0, 60.0, 30.0)];
[button addTarget:self
           action:@selector(backButtonPressed:)
 forControlEvents:UIControlEventTouchUpInside];
self.backButton = [[UIBarButtonItem alloc] initWithCustomView:button];