移动UITableCell

Question

我使用下面的代码来移动UITableCell

- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {


    NSMyObj *newObj=[myArray objectAtIndex:[fromIndexPath row]]  ;//myArray is the array to store NSMyObj
    [myArray removeObjectAtIndex:[fromIndexPath row]];
    [myArray insertObject:newObj atIndex:[toIndexPath row]];//

}

但它报告说：

objc [316]：FREED（id）：消息保留发送到释放对象= 0x3d3d330

欢迎任何评论

由于

InterDev中

Answer 1

您必须暂时-retain newObj，以避免它变为无主人并取消分配。

NSMyObj *newObj = [[myArray objectAtIndex:[fromIndexPath row]] retain]; // <---
[myArray removeObjectAtIndex:[fromIndexPath row]];
[myArray insertObject:newObj atIndex:[toIndexPath row]];
[newObj release]; // <---