一. 手勢類經常使用的代理方法，解決手勢和點擊cell的衝突

手勢是OC中的類，那麼手勢類也是有協議的，UIGestureRecognizerDelegate，手勢經常使用的代理方法：

1.是否容許同時支持多個手勢，默認只支持一個手勢，要調用此方法注意設置代理
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    return YES;
}

2.是否容許開始觸發手勢
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
{
    return NO;
}

3.是否容許接收手機的觸摸(能夠控制觸摸的範圍)
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
    //獲取當前的觸摸點
    CGPoint currentP = [touch locationInView:self.imageView];
      在圖片的左半區域能夠接受觸摸
    if (currentP.x < self.imageView.bounds.size.width * 0.5) {
        return YES;
    }else {
        return NO;
    }
}

例如：- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {

  　　// 輸出點擊的view的類名 //NSLog(@"%@", NSStringFromClass([touch.view class]));

       // 若爲UITableViewCellContentView（即點擊了tableViewCell），則不截獲Touch事件

      if ([NSStringFromClass([touch.view class]) isEqualToString:@"UITableViewCellContentView"])

     { return NO; }

return YES; 

}