如何关闭 UISearchBar 中的实时搜索

Question

我已经使用 UIViewController、UISearchBarDelegate、UISearchDisplayDelegate 实现了 SearchBar，当执行搜索时，我的程序向服务器发送 http 请求，然后解析响应正文。这将导致搜索栏在每个字符输入后延迟几秒钟。

所以我想关闭搜索栏的“实时搜索”，这样它就不会在我每次输入字符时都执行搜索。当我单击键盘的“搜索”按钮时，我还想执行搜索并将数据显示到表格视图中。我能做些什么？

Answer 1

调用 [self.searchDisplayController.searchResultsTableView reloadData];
仅当您的搜索请求已完成时，并且仅在调用委托 - (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar 时才发出搜索请求。

- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
{

    DLog(@"search text is %@",searchBar.text);

    [self makeSearchRequest:searchBar.text];
}

-(void)makeSearchRequest:(NSString*)pString
{
    CLLocation *location = [[AppHelper appDelegate] mLatestLocation];

    NSMutableDictionary *paramDic = [[NSMutableDictionary alloc] init];
    [paramDic setValue:[[AppHelper mDataManager] objectForKey:_KEY(KEY_USERID)] forKey:@"userid"];
    [paramDic setValue:@"H0001" forKey:@"client"];
    [paramDic setValue:[[AppHelper mDataManager] objectForKey:_KEY(KEY_LOCATION_ID)] forKey:@"locationid"];
    [paramDic setValue:@"0" forKey:@"pageid"];
    [paramDic setValue:@"10" forKey:@"displayrecords"];
    //  [paramDic setValue:[[dic objectForKey:@"birthday"] stringByReplacingOccurrencesOfString:@"/" withString:@"-"] forKey:@"dateofbirth"];
    **[paramDic setValue:pString forKey:@"keyword"];**




    [self.mWNetowrk makeRequsetWithURL:URL_SEARCH type:ReqSearch paramDictionary:paramDic delegate:self];
    [paramDic autorelease];
}

-(void)network:(WNetwork*)network didFinishLoadingWithRequest:(NSInteger)pReq data:(NSMutableDictionary*)pData
{
    [self removeLoader  ];

    switch (pReq) {

        case ReqSearch:
            self.mArrayPlaces = [pData objectForKey:@"places"];
            [mPlacesCacheArray release];
            mPlacesCacheArray=nil;
            if (!mPlacesCacheArray) {

                mPlacesCacheArray =[NSMutableArray new];
                for (int i =0 ; i<[mArrayPlaces count]; i++) {
                    [mPlacesCacheArray addObject:[NSNull null]];

                }
            }

            [self.searchDisplayController.searchResultsTableView reloadData];

            break;

        default:
            break;
    }

}