本文介紹iOS開發(fā)中手勢(shì)的運(yùn)用，話不多說(shuō)，先上代碼；
給tableView添加長(zhǎng)按手勢(shì)代碼如下：

UILongPressGestureRecognizer *longPressG = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(presentAlertSheetEvent:)];
longPressG.minimumPressDuration = 1.0;//長(zhǎng)按最短時(shí)間
[tableView addGestureRecognizer:longPressG];//給tableView對(duì)象添加長(zhǎng)按手勢(shì)

給cell添加長(zhǎng)按手勢(shì)代碼：

  -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    //給cell添加長(zhǎng)按手勢(shì) - wsx注釋
    UILongPressGestureRecognizer *longPressG = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(presentAlertSheetEvent:)];
    longPressG.minimumPressDuration = 1.0;
    [cell addGestureRecognizer:longPressG];
    return cell;
}

手勢(shì)觸發(fā)執(zhí)行方法代碼如下：

//表單警告框代碼
-(void)presentAlertSheetEvent:(UILongPressGestureRecognizer *)gesture {
    if(gesture.state == UIGestureRecognizerStateBegan)
    {
        CGPoint point = [gesture locationInView:tableView];//獲取按點(diǎn)在tableView上的point
        NSIndexPath * indexPath = [tableView indexPathForRowAtPoint:point];
        if(indexPath == nil) return ;
        //add your code here
        //選項(xiàng)提示 - wsx注釋
        {
            NSLog(@"row = %ld",(long)indexPath.row);
            
            UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"警  告" message:@"這里寫警告的內(nèi)容！" preferredStyle:UIAlertControllerStyleActionSheet];
            UIAlertAction *centain = [UIAlertAction actionWithTitle:@"確定" style:UIAlertActionStyleDefault handler:nil];
            [alert addAction:centain];
            UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];
            [alert addAction:cancel];
            [self presentViewController:alert animated:YES completion:nil];
        }
    }
}

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