longPress时启用UIPanGestureRecognizer

Question

我想启用UIPanGestureRecognizer的customView时候customView做longPress。
（我想你的时候longPress customView，在customView将切换到“移动模式”，你可以移动customView的拖累。）

但是在这段代码中，只能longPressAction:调用。panAction:没有打电话。
如何修复它以启用它PanAction:？

- (void)viewDidLoad
{
    [self.view addSubview:customView];

    UILongPressGestureRecognizer *longPressRecognizer = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPressAction:)];
    [customView addGestureRecognizer:longPressRecognizer];
    UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panAction:)];
    [customView addGestureRecognizer:panRecognizer];
}

- (void)longPressAction:(UILongPressGestureRecognizer *)recognizer
{
    if ([recognizer state] == UIGestureRecognizerStateBegan) {
        CustomView *customView = (CustomView *)recognizer.view;
        customView.panRecongnizerEnabled = YES; //panRecongnizerEnabled is CustomView's property
    }
    if ([recognizer state] == UIGestureRecognizerStateEnded) {
        CustomView *customView = (CustomView *)recognizer.view;
        customView.panRecongnizerEnabled = NO;
    }
}

- (void)panAction:(UIPanGestureRecognizer *)recognizer
{
    CustomView *customView = (CustomView *)recognizer.view;
    if (customCell.panRecongnizerEnabled == NO) return;
    NSLog(@"running panAction");
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    return YES;
}

Answer 1

您的 ViewController 需要符合UIGestureRecognizerDelegate. 我怀疑你要么已经这样做了，要么shouldRecognizeSimultaneouslyWithGestureRecognizer没有任何意义。但你肯定缺少的是设置gestureRecognizer\xc2\xb4s 委托给你的 viewController：

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longPressRecognizer.delegate = self;\npanRecognizer.delegate = self;\n

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现在您应该同时接收到长按和平移。

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注意：我测试时没有任何自定义视图，只是将它们添加到self.view. 至少在这种情况下，上面的代码按预期工作。

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