短视频app开发，左滑删除或长按弹出删除选择框

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

 

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

​

二、长按手势

 

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

 

响应长按事件打印行：

 

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

 

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