iphone - iPhone + performselector在后台

有人可以帮我performSelectorInBackground吗？我想用performSelectorInBackground中的更新数据重新加载表。

最佳答案

您可以做的是，只需在后台线程中获取数据，就可以在获取数据并更新主线程中的tableview后返回主线程。

- (UITableViewCell *)tableView:(UITableView *)tableView
         cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
   //All your views cell creations and other stuff
   [self performSelectorInBackground:@selector(loadDataThatToBeFetchedInThread:)
                          withObject:objectArrayThatNeedToFetchData];
}

- (void) loadDataThatToBeFetchedInThread:(NSArray *)objectThatNeedToFetchData
{
    //Fetch the data here. which takes place in background thread
    [self performSelectorOnMainThread:@selector(updateTableViewWithTheData:)
                           withObject:responseData
                        waitUntilDone:YES];
}


- (void) updateTableViewWithTheData:(NSMutableArray *)yourData
{
    //Update Data to tableview here
}

关于iphone - iPhone + performselector在后台，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/9783957/