Question

ios 微信通讯录搜索uisearchcontroller 怎么应用的

Answer 1

只要返回上一个界面就会报这个警告，Attempting to load the view of a view controller while it is deallocating is not allowed and may result in undefined behavior (<UISearchController: 0x7fe96da6c130>)
但是如果有点了一下搜索框再返回就不会报，这个警告倒是不影响使用，但是看着不爽。。

下面是我的相关的设置

- (void)viewDidLoad {
...
self.searchController = [[UISearchController alloc] initWithSearchResultsController:nil];
self.searchController.searchResultsUpdater = self;
self.searchController.dimsBackgroundDuringPresentation = NO;
self.tableView.tableHeaderView = self.searchController.searchBar;
self.searchController.searchBar.searchBarStyle = UISearchBarStyleMinimal;
self.searchController.hidesNavigationBarDuringPresentation = NO;
self.definesPresentationContext = YES;
}
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:animated];
if (self.searchController.active) {
self.searchController.active = NO;
[self.searchController.searchBar removeFromSuperview];
}