Question

我想处理我的禁用按钮

self.closeButton.enabled = NO;
self.closeButtonDisabledRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(closeButtonDisablePressed)];
[self.closeButton addGestureRecognizer:self.closeButtonDisabledRecognizer];

但似乎它不起作用。有什么好办法吗？

Answer 1

禁用太像是告诉SDK忽略你想要的触摸。我建议改为：

@property(assign, nonatomic) BOOL treatTheCloseButtonAsEnabled;

// replace the synthesized setter
- (void)setTreatTheCloseButtonAsEnabled:(BOOL)enabled {
    self.closeButton.alpha = (enabled)? 1.0 : 0.5;
    // or some other visible indication of the "disabled" state
}

- (IBAction)pressedCloseButton:(id)sender {

    if (self.treatTheCloseButtonAsEnabled) {
        // logic for a regular press
    } else {
        // logic for a disabled press
    }
}

Answer 2

也许你也可以在控制器中使用触摸事件。它会是这样的（我假设你的关闭按钮被添加到controller.view上）：

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    CGPoint touchPoint = [[touches anyObject] locationInView:self.view];
    touchPoint = [self.view convertPoint:touchPoint toView:_closeButton.superview];

    //to determine wether user touch on you button
    if (CGRectContainsPoint(_closeButton.frame, touchPoint) == NO) {
        return;
    }

    //handle your touch on button here
}

处理禁用按钮触摸

2 个答案: