我有一个 UIRefreshControl,当你使用它时它工作正常,但它挂起,它永远不会消失。我试过了
[self.refreshControl endRefreshing];
这个解决方案来自一个类似的问题,但它没有解决我的问题。
即使这样,refreshControl 也会继续旋转,而不是关闭。为什么是这样?
在我看来DidLoad:
[NSThread detachNewThreadSelector:@selector(refreshFeed) toTarget:self withObject:nil];
refreshControl = [[UIRefreshControl alloc] init];
[refreshControl addTarget:self
action:@selector(refreshFeed)
forControlEvents:UIControlEventValueChanged];
[self.tableView addSubview:refreshControl];
refreshFeed 方法...
-(void)refreshFeed
//load those feeds
{
RSSLoader* rss = [[RSSLoader alloc] init];
[rss fetchRssWithURL:feedURL
complete:^(NSString *title, NSArray *results) {
dispatch_queue_t downloadQueue = dispatch_queue_create("downloader",NULL);
dispatch_async(downloadQueue, ^{
_objects = results;
//completed fetching the RSS
dispatch_async(dispatch_get_main_queue(), ^{
[self.refreshControl endRefreshing];
[self.tableView reloadData];
});
});
}];
}