在 iOS parse.com 搜索表视图时无法取消单元格的排队

Question

我正在尝试在表视图中执行搜索功能，以从 Parse.com 类中返回对象。

当我尝试在UISearchBar中进行搜索时，我收到此错误：

由于

未捕获的异常"NSInternalInconsistencyException"而终止应用程序，原因："无法使用标识符 FeaturedTableViewCell 取消排队的单元格 - 必须为标识符注册笔尖或类，或者在情节提要中连接原型单元格"

这是我的做法：

@interface DiscoverViewController () <UISearchBarDelegate, UISearchDisplayDelegate>
@property (nonatomic, retain) PFQuery *query;
@property (nonatomic, retain) PFObject *category;
@end
@implementation DailyDiscoverViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    self.searchController = [[UISearchDisplayController alloc] initWithSearchBar:self.searchBar contentsController:self];
    self.searchController.searchResultsDataSource = self;
    self.searchController.searchResultsDelegate = self;
    self.searchController.delegate = self;
    self.searchResults = [NSMutableArray array];
    _categories = [[NSMutableArray alloc] initWithCapacity:100];
}
- (void)filterResults:(NSString *)searchTerm {
    [self.searchResults removeAllObjects];
    PFQuery *query = [PFQuery queryWithClassName:@"Projects"];
    [query whereKeyExists:@"name"];
    [query whereKey:@"name" containsString:searchTerm];
    NSArray *results  = [query findObjects];
    [self.searchResults addObjectsFromArray:results];
}
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
    [self filterResults:searchString];
    return YES;
}
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {
    [searchBar resignFirstResponder];
}
- (void)refresh {
    PFQuery *query = [PFQuery queryWithClassName:@"Categories"];
    [query orderByDescending:@"name"];
    [query findObjectsInBackgroundWithBlock:^(NSArray *posts, NSError *error) {
        if (!error) {
            //NSLog(@"%@", posts);
        } else {
        }
        [_categories setArray:posts];
        [self.tableView reloadData];
        [_loadingView stopAnimating];
        [_refreshControl endRefreshing];
    }];
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    if (tableView == self.tableView) {
        if (section == 0) {
            return 1;
        } else {
            return self.categories.count;
        }
    } else {
        return self.searchResults.count;
    }
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.section == 0) {
        return 320;
    } else {
        return 52;
    }
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 2;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.section == 0) {
        _featuredObject = [_featured objectAtIndex:indexPath.row];
        DiscoverFeaturedTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"DiscoverFeaturedTableViewCell" forIndexPath:indexPath];
        [(PFFile*)_featuredObject[@"picture"] getDataInBackgroundWithBlock:^(NSData *data, NSError *error) {
            cell.image1.image = [UIImage imageWithData:data];
        }];
        return cell;
    } else {
        _category = [_categories objectAtIndex:indexPath.row];
        DiscoverTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"DiscoverTableViewCell" forIndexPath:indexPath];
        cell.name.text = _category[@"name"];
        if ([tableView isEqual:self.searchDisplayController.searchResultsTableView]) {
            PFUser *obj2 = [self.searchResults objectAtIndex:indexPath.row];
            PFQuery *query = [PFQuery queryWithClassName:@"Projects"];
            PFObject *searchedUser = [query getObjectWithId:obj2.objectId];
            NSString *first = [searchedUser objectForKey:@"name"];
            cell.name.text = [first substringToIndex:1];
            cell.name.text = first;
            return cell;
        }
        return cell;
    }
}
@end

Answer 1

我想

你可以看看这个堆栈在流程帖子上：POST

K.

Answer 2

好的，

在viewDidLoad上尝试一下：

YourCustomCell *yourCustomCell = [UINib nibWithNibName：@"YourCustomCell" bundle：nil];[自我表视图 registerNib：cellNib forCellReuseIdentifier：@"cell"];

注意：当然，您的自定义单元格必须具有.xib。

Answer 3

你可以试试这个，我记得遇到了这个确切的问题，这是我尝试过的解决方案之一： [self.tableView registerClass:[DiscoverTableViewCell class] forCellReuseIdentifier:@"DiscoverTableViewCell"];

但是，我清楚地记得这不起作用。事实证明，我没有正确连接故事板中的单元格。此外，请确保情节提要单元格的类已更改为表示单元格的自定义类。