如何检测UITextField上的tap ?

I have a UITextField that has User Interaction Disabled. So if you tap on this text field, nothing happens. Normally to check if a text field was tapped Id try the delegate methods, but I cannot because user interaction is disabled. Is there any way I can check if the text field was tapped/touched? I change another element to hidden = no; when it is tapped so I was wondering if its even possible enabling user interaction.

我有一个UITextField，它禁用了用户交互。如果你点击这个文本框，什么都不会发生。通常，要检查文本字段是否被选中，请尝试委托方法，但我不能这样做，因为用户交互是被禁用的。是否有办法检查文本字段是否被点击/触摸?我将另一个元素改为hidden = no;当它被点击时，我想知道它是否可能支持用户交互。

2 个解决方案

#1

Maybe, you can add UITapGestureRecognizer in the superview, detect if the touch is inside the frame, and then do something.

也许，您可以在父视图中添加UITapGestureRecognizer，检测触摸是否在框架内，然后做一些事情。

Detect touch if it is inside the frame of the super view

1. Create UITapGestureRecognizer and add that to the UITextField's super view.
2. 创建uitapgesturerecnizer并将其添加到UITextField的超视图中。
3. Implement the target selector and check if the gesture's state has ended.
4. 实现目标选择器并检查手势的状态是否结束。
5. Call your method.
6. 打电话给你的方法。

Objective-C

UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(didRecognizeTapGesture:)];
[self.textField.superview addGestureRecognizer:tapGesture];


- (void) didRecognizeTapGesture:(UITapGestureRecognizer*) gesture {
    CGPoint point = [gesture locationInView:gesture.view];

    if (gesture.state == UIGestureRecognizerStateEnded) {
        if (CGRectContainsPoint(self.textField.frame, point)) {
            [self doSomething];
        }
    }
}

Swift 3

func viewDidLoad() {
    let tapGesture = UITapGestureRecognizer(target: self, action: #selector(didRecognizeTapGesture(_:)))

    textField.superView?.addGestureRecognizer(tapGesture)
}

private dynamic func didRecognizeTapGesture(_ gesture: UITapGestureRecognizer) {
    let point = gesture.location(in: gesture.view)

    guard gesture.state == .ended, textField.frame.contains(point) else { return }

    //doSomething()
}

#2

Best option is to turn on User Interaction and disable edit action using delegate method.

最好的选择是打开用户交互并禁用使用委托方法的编辑操作。

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
     return NO;
} 

You can call your method inside that function to detect tap.

您可以在该函数中调用您的方法来检测tap。