Question

UIBarButtonItem有一个setEnabled:方法（除了后退按钮之外的所有方法）按预期工作，但它没有setUserInteractionEnabled:方法。但是，虽然未启用，UIBarButtonItems可以接收触摸，当重新启用时，它们会尝试处理。我想为导航栏按钮执行相当于setUserInteractionEnabled: NO的操作（在有时需要一段时间的操作期间）。

有一种简单的方法可以解决这个问题吗？

Answer 1

你需要做很少的定制，你可以做到......

//在viewDidLoad中添加此代码

UIButton *leftButton = [UIButton buttonWithType:UIButtonTypeCustom];   
[leftButton setUserInteractionEnabled:NO];
[leftButton setImage:[UIImage imageNamed:@"navigationbutton.png"] forState:UIControlStateNormal];    
leftButton.frame = CGRectMake(0, 0, 30, 30);
[leftButton addTarget:self action:@selector(yorrmethod) forControlEvents:UIControlEventTouchUpInside];        
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:leftButton];
[leftButton release];

UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeInfoLight];
[rightButton setUserInteractionEnabled : NO];
[rightButton setImage:[UIImage imageNamed:@"navigationbutton.png"] forState:UIControlStateNormal];    
rightButton.frame = CGRectMake(0, 0, 30, 30);
[rightButton addTarget:self action:@selector(yourmethod) forControlEvents:UIControlEventTouchUpInside];        
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:rightButton];
[rightButton release];

希望，这会对你有帮助......

如何实现setUserInteractionEnabled的等价物：用于UIBarButtonItem

1 个答案: