Question

如何给button添加长按事件

Answer 1

UILongPressGestureRecognizer *longPressGesutreRecognizer = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(handleLongPressed)];[longPressGesutreRecognizer setMinimumPressDuration:1];[frameButton addGestureRecognizer:longPressGesutreRecognizer];[longPressGesutreRecognizer release];-(void) handleLongPressed{// 在这里写处理长按事件的代码}UILongPressGestureRecognizer 是UIGestureRecognizer 的子类。手势识别类 UIGestureRecognizer 是一个抽象类，根据不同的手势，实现了具体不同的子类：UITapGestureRecognizerUIPinchGestureRecognizerUIRotationGestureRecognizerUISwipeGestureRecognizerUIPanGestureRecognizerUILongPressGestureRecognizer