TableView for IOS-built-in refresh, EGO, and search display controller

In the past few days, due to a problem with the local network, all webpages except Q and Weibo cannot be accessed. The blog has not followed up. I recovered today, so I continued to update my blog. I also hope you can continue to comment on it or give me some suggestions or exchange ideas:-) Today, I found a previous TableView example, mainly about uploading and refreshing, so I wrote a demo, then update it to the blog. Built-in refresh built-in refresh is an API launched after Apple IOS6. It mainly adds an attribute refreshControl for TableViewController. If you want to use this built-in drop-down refresh function, you 'd better specify a dedicated View Controller for your TableView. In use, we need to specify a UIRefreshControl object for refreshControl. It is not difficult to check the three attributes in the header file and initialize the three methods, then configure the refreshControl [cpp]/****** built-in refresh common attribute settings ******/UIRefreshControl * refresh = [[UIRefreshControl alloc] init]; refresh. attributedTitle = [[NSAttributedString alloc] initWithString: @ "pull-down refresh"]; refresh. tintColor = [UIColor blueColor]; [refresh addTarget: self action: @ selector (pullToRefresh) forControlEvents: UIControlEventValueChanged]; self. refreshControl = refresh; a listener is set. [Cpp] // pull-down refresh-(void) pullToRefresh {// simulate network access to [UIApplication sharedApplication]. networkActivityIndicatorVisible = YES; self. refreshControl. attributedTitle = [[NSAttributedString alloc] initWithString: @ "refreshing"]; double delayInSeconds = 1.5; interval popTime = dispatch_time (interval, (int64_t) (delayInSeconds * seconds )); dispatch_after (popTime, dispatch_get_main_queue (), ^ (Void) {_ rowCount + = 5; [self. tableView reloadData]; // set the refresh control when the refresh ends [self. refreshControl endRefreshing]; self. refreshControl. attributedTitle = [[NSAttributedString alloc] initWithString: @ "pull-down refresh"]; [UIApplication sharedApplication]. networkActivityIndicatorVisible = NO; _ bottomRefresh. frame = CGRectMake (0, 44 + _ rowCount * RCellHeight, 320, RCellHeight) ;});} Because network access is not actually performed here, so here we use a method called dis to simulate network access latency. Patch_after is not difficult about this GCD method. You only need to set the delay time and the code in the delayed end Block.