短视频app开发，左滑删除或长按弹出删除选择框

一、左滑删除

 <br> <br> - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath { <br>     return YES; <br> } <br>   <br> - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { <br>   <br>      if (editingStyle == UITableViewCellEditingStyleDelete) { <br>          [dataArray removeObjectAtIndex:indexPath.row]; <br>          // Delete the row from the data source. <br>          [testTableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; <br>           <br>      }    <br>      else if (editingStyle == UITableViewCellEditingStyleInsert) { <br>      // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view. <br>      }    <br>  } <br> - (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath{ <br>         return @"下载"; <br> } 

二、长按手势

   <br>添加1秒手势<br>UILongPressGestureRecognizer * longPressGr = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressToDo:)];   <br>     longPressGr.minimumPressDuration = 1.0;   <br>     [self.tableView addGestureRecognizer:longPressGr];   <br>    [longPressGr release];  

响应长按事件打印行：

<br>   <br>-(void)longPressToDo:(UILongPressGestureRecognizer *)gesture   <br> {   <br>     if(gesture.state == UIGestureRecognizerStateBegan)   <br>     {   <br>         CGPoint point = [gesture locationInView:self.tableView];   <br>        NSIndexPath * indexPath = [self.tableView indexPathForRowAtPoint:point];<br>NSlog(@"%d",indexPath.row);   <br>   <br>         if(indexPath == nil) return ;   <br>        //add your code here   <br>    }   <br> } 

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