我正在为uinavigationbar制作自定义的工具栏按钮,我正在使用以下代码:
UIImageView *backImgView= [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"chk_back.png"]]; [backImgView setUserInteractionEnabled:YES];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithCustomView:backImgView];
[backButton setTarget:self];
[backButton setAction:@selector(BackBtn)];
checkIn_NavBar.topItem.leftBarButtonItem = backButton;
问题是它没有调用它的动作。我做错了什么?