UIBarbuttonItem不调用action方法

Question

我正在使用此代码添加导航栏按钮。

UIColor *green = [UIColor colorWithRed:0.1 green:0.7 blue:0.2 alpha:1.0];
self.navigationItem.rightBarButtonItem = [KHFlatButton barButtonWithTitle:@"Go Pro!" backgroundColor:green];
self.navigationItem.rightBarButtonItem.action =@selector(goProButtonTapped);

按钮显示，但它不会调用其动作方法。

- (void) goProButtonTapped
{
    NSLog(@"Go Pro button Tapped");
}

请帮忙！

Answer 1

您还应该设置目标：

self.navigationItem.rightBarButtonItem.target = self;

您还可以使用自定义视图创建条形按钮项目：

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
UIColor *green = [UIColor colorWithRed:0.1 green:0.7 blue:0.2 alpha:1.0];
button.backgroundColor = green;
[button addTarget:self action:@selector(goProButtonTapped) forControlEvents:UIControlEventTouchUpInside];
[button setTitle:@"Go Pro!" forState: UIControlStateNormal];
UIBarButtonItem *customBarItem = [[UIBarButtonItem alloc] initWithCustomView:button];