tableView 刪除小技巧

//滑動刪除

-( void )tableView:( UITableView *)tableView commitEditingStyle :(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath :( NSIndexPath *)indexPath

{  

     NSUInteger row = [indexPath row ];

     [bookInforemoveObjectAtIndex:row]; //bookInfo為當前table中顯示的array

     [tableView deleteRowsAtIndexPaths :[NSArrayarrayWithObject:indexPath]withRowAnimation:UITableViewRowAnimationLeft];

}

 

/*此時刪除按鈕為Delete，如果想顯示為“刪除” 中文的話，則需要實現

UITableViewDelegate 中的- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath方法*/

 

- ( NSString *)tableView:( UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath :( NSIndexPath *)indexPath{   

     return @"刪除" ;   

}   

//或者，最簡單的方式，將plist中的Localization native development region改為China即可

 

//這只是讓默認的Delete按鈕顯示成了中文的刪除按鈕而已，如果想將這個刪除按鈕換成其他圖片形式的，怎么辦呢？

-( UITableViewCell *)tableView:( UITableView *)tableView cellForRowAtIndexPath :( NSIndexPath *)indexPath   

{   

     static NSString * RootViewControllerCell = @"RootViewControllerCell" ;   

     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier :RootViewControllerCell];   

     if (cell == nil )   

     {   

         cell = [[[ UITableViewCell alloc ] initWithFrame : CGRectZero reuseIdentifier :RootViewControllerCell]autorelease];   

             

         UIButton *button = [ UIButton buttonWithType :UIButtonTypeCustom];   

         [button setBackgroundImage :[ UIImage imageNamed : @"delete.png" ] forState :UIControlStateNormal];   

         [button setFrame :CGRectMake( 2 8 0 , 1 0 , 3 0 , 3 0 )];   

         [button addTarget : self action : @selector (del:) forControlEvents :UIControlEventTouchUpInside];   

         [cell .contentView addSubview :button];          

     }   

         

     cell .textLabel .text = [array objectAtIndex :[indexPath row ]];   

     cell .tag = [indexPath row ];   

         

     NSArray *subviews = [cell .contentView subviews ];   

     for ( id view in subviews)   

     {   

         if ([view isKindOfClass :[ UIButton class ]])   

         {   

             [view setTag :[indexPath row ]];   

             [cell .contentView bringSubviewToFront :view];   

         }   

     }   

     return cell;   

}   

     

-( void )del:( UIButton *)button   

{   

     NSArray *visiblecells = [ self .table visibleCells ];   

     for ( UITableViewCell *cell in visiblecells)   

     {   

         if (cell .tag == button .tag )   

         {   

             [array removeObjectAtIndex :[cell tag ]];   

             [table reloadData ];   

             break;   

         }   

     }   

}