Question

如何给uiimageview添加点击事件

Answer 1

给的UIImageView增加点击事件

解决思路1：网友提示在该“button”上增加一个真正的透明button，这样就可以顺利执行点击事件了；但是本人尝试发现，如果我调整了button的透明度后，点击是没有效果的！可能是我操作错误，待再次验证。
解决思路2：为的UIImageView增加手势
[ImageView的addGestureRecognizer：我们自己的手势识别 ]
如何创建一个手势？看看UITapGestureRecognizer的用法吧

//单指单击
UITapGestureRecognizer * singleFingerOne = [[UITapGestureRecognizer页头] initWithTarget：自
操作：@selector（handleSingleFingerEvent :)]
singleFingerOne.numberOfTouchesRequired = 1; //手指数
singleFingerOne.numberOfTapsRequired = 1; //抽头次数
singleFingerOne 委托 =自我;

//单指双击
UITapGestureRecognizer * singleFingerTwo = [[UITapGestureRecognizer页头] initWithTarget：自
操作：@selector（handleSingleFingerEvent :)];
singleFingerTwo.numberOfTouchesRequired = 1;
singleFingerTwo.numberOfTapsRequired = 2;
。singleFingerTwo 委托 =自我;

//双指单击
UITapGestureRecognizer * doubleFingerOne = [[UITapGestureRecognizer页头] initWithTarget：自
操作：@selector（handleDoubleFingerEvent :)];
doubleFingerOne.numberOfTouchesRequired = 2;
doubleFingerOne.numberOfTapsRequired = 1;
。doubleFingerOne 委托 =自我;

UITapGestureRecognizer * doubleFingerTwo = [[UITapGestureRecognizer页头] initWithTarget：自
操作：@selector（handleDoubleFingerEvent :)];
doubleFingerTwo.numberOfTouchesRequired = 2;
doubleFingerTwo.numberOfTapsRequired = 2;
。doubleFingerTwo 委托 =自我;

//如果不加下面的话，当单指双击时，会先调用单指单击中的处理，再调用单指双击中的处理
[singleFingerOne requireGestureRecognizerToFail：singleFingerTwo]
//同理双指亦是如此
[doubleFingerOne requireGestureRecognizerToFail：doubleFingerTwo]

[self.view addGestureRecognizer：singleFingerOne]
[self.view addGestureRecognizer：singleFingerTwo]
[self.view addGestureRecognizer：doubleFingerOne]
[self.view addGestureRecognizer：doubleFingerTwo]

[singleFingerOne发布]
[singleFingerTwo发布]
[doubleFingerOne发布]
[doubleFingerTwo发布]

处理事件的方法，代码：
//处理单指事件
- （无效）handleSingleFingerEvent：（UITapGestureRecognizer *）发件人
{
如果（sender.numberOfTapsRequired == 1）{
//单指单击
的NSLog（@“单指单击”）;
} 否则如果（sender.numberOfTapsRequired == 2）{
//单指双击
的NSLog（@“单指双击”）;
}
}
//处理双指事件
- （无效）handleDoubleFingerEvent：（UITapGestureRecognizer *）发件人
{
如果（sender.numberOfTapsRequired == 1）{
//双指单击
的NSLog（@“双指单击”）;
} 否则如果（sender.numberOfTapsRequired == 2）{
//双指双击
的NSLog（@“双指双击”）;
}
}