设置TableView可编辑

设置TableView可编辑

  (2011-01-19 09:00:53)

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关键词：对tableView进行增、删操作

1.设置tableView可编辑

RootViewController.m

[self.navigationItem setRightBarButtonItem:[self editButtonItem]];

- (void)setEditing:(BOOL)editing animated:(BOOL)animated

{

[super setEditing:editing animated:animated];

[tableView setEditing:editing animated:animated];

}

TestTableViewController.m

- (void)setEditing:(BOOL)editing animated:(BOOL)animated

{

[super setEditing:editing animated:animated];

}

也可以直接设定rootViewController可编辑

RootViewController.m

[self setEditing:YES animated:YES];

设置tableView可编辑的行

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath

{

return YES;

}

//设置可移动标志，操作每个cell是否可被移动

- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath

{

if(indexPath.row == [_books count])

{

return NO;

}

return YES;

}

 

 

增加或删除

- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath

{

if(indexPath.row == [_books count])

{

return UITableViewCellEditingStyleInsert;

}

 

return UITableViewCellEditingStyleDelete;

}

完成编辑

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

{

if(editingStyle == UITableViewCellEditingStyleInsert)

{

//插入一条新条目的时候，会更新numberOfRowsInSection 方法，并且 运行一次cellForRowAtIndexPath，生成一个新增的cell

Book *book = [[Book alloc] initWithISBN:@"999" name:@"New Book" cover:nil];

[_books insertObject:book atIndex:indexPath.row];

[tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]withRowAnimation:UITableViewRowAnimationRight];

}

else if(editingStyle == UITableViewCellEditingStyleDelete)

{

//删除一条条目时，更新numberOfRowsInSection

[_books removeObjectAtIndex:indexPath.row];

[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]withRowAnimation:UITableViewRowAnimationBottom];

}

}