如何搜索词典的数组和显示的UITableView？ [英] How to Search Array of Dictionary and show in UITableview?

问题描述

我在IOS pretty新我使用 UISearchDisplayController 进行搜索。

   - （BOOL）searchDisplayController：（UISearchDisplayController *）控制器shouldReloadTableForSearchString：（* NSString的）搜索字符串
{
    [个体经营filterContentForSearchText：搜​​索字符串
                               范围：[self.searchDisplayController.searchBar scopeButtonTitles]
                                      objectAtIndex：[self.searchDisplayController.searchBar
                                                     selectedScopeButtonIndex]]];    返回YES;
} - （无效）filterContentForSearchText：（* NSString的）SEARCHTEXT范围：（* NSString的）范围
{
    NS predicate * predicate = NS predicate predicateWithFormat：@任何自我==％@，SEARCHTEXT]
    NSArray的*过滤= [self.arrProductList filteredArrayUsing predicate：predicate]。
    的NSLog（@％@，过滤）;
}
 

这是我的self.arrProductList是数组的数组即

    （{
        ID = 1;
        说明=合并运作急躁T恤
        PNAME =凝聚正常工作的T恤
        价格=299.00;
        数量= 99;
       }，
    {
        ID = 2;
        说明=噬魂Krylon Bombear打掉T恤
        PNAME =少女的T恤
        价格=499.00;
        数量= 99;
    }，
    {
        ID = 3;
        说明=一开始孩子们向上波段营套头衫帽衫
        PNAME =乐队营T恤
        价格=399.00;
        数量= 99;
    }）

我的问题是如何搜索使用keyPNAME？我的应用程序在崩溃

  

filteredArrayUsing predicate：

解决方案

我的朋友解决了这个问题。这里，是code：

   - （无效）searchBarDidBeginEditing：（*的UISearchBar）lclSearchBar
{
    self.searchBar.showsCancelButton = YES;
}
的#pragma马克 -  UISearchDisplayController委托方法
 - （BOOL）searchDisplayController：（UISearchDisplayController *）控制器shouldReloadTableForSearchString：（* NSString的）搜索字符串
{    [个体经营filterContentForSearchText：搜​​索字符串
                               范围：[self.searchDisplayController.searchBar scopeButtonTitles]
                                      objectAtIndex：[self.searchDisplayController.searchBar
                                                     selectedScopeButtonIndex]]];    返回YES;
} - （无效）filterContentForSearchText：（* NSString的）SEARCHTEXT范围：（* NSString的）范围
{
    如果（searchResults.count！= 0）{
        [SearchResult所removeAllObjects]
    }
    的for（int i = 0; I＆LT; self.arrProductList计数];我++）
    {
        * NSString的字符串= [[self.arrProductList objectAtIndex：我] valueForKey：@PNAME];
        NSRange rangeValue = [字符串rangeOfString：SEARCHTEXT选项：NSCaseInsensitiveSearch];
        如果（rangeValue.length大于0）
        {
            的NSLog（@字符串包含喇嘛！）;            [SearchResult所ADDOBJECT：[self.arrProductList objectAtIndex：我]];
        }
        其他
        {
            的NSLog（@字符串不包含喇嘛）;
        }
    }
    的NSLog（@fiilterArray：％@，SearchResult所）;
}
 

I am pretty new in IOS and I am using UISearchDisplayController for searching.

-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
    [self filterContentForSearchText:searchString
                               scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
                                      objectAtIndex:[self.searchDisplayController.searchBar
                                                     selectedScopeButtonIndex]]];

    return YES;
}

- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope
{
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ANY SELF == %@", searchText];
    NSArray *filtered = [self.arrProductList filteredArrayUsingPredicate:predicate];
    NSLog(@"%@", filtered);
}

And Here is my self.arrProductList is an array of array i.e

    ({
        ID = 1;
        description = "Coalesce Functioning on impatience T-Shirt";
        pname = "Coalesce Functioning T-Shirt";
        price = "299.00";
        qty = 99;
       },
    {
        ID = 2;
        description = "Eater Krylon Bombear Destroyed T-Shirt";
        pname = "Girl's T-Shirt";
        price = "499.00";
        qty = 99;
    },
    {
        ID = 3;
        description = "The Get-up Kids Band Camp Pullover Hoodie";
        pname = "Band Camp T-Shirt";
        price = "399.00";
        qty = 99;
    })  

My question is how to search using key "pname"? My app is Crashed in

filteredArrayUsingPredicate:

解决方案

My friend solve this issue. Here, is the code:

- (void) searchBarDidBeginEditing:(UISearchBar*) lclSearchBar
{
    self.searchBar.showsCancelButton = YES;
}
#pragma mark - UISearchDisplayController delegate methods
-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{

    [self filterContentForSearchText:searchString
                               scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
                                      objectAtIndex:[self.searchDisplayController.searchBar
                                                     selectedScopeButtonIndex]]];

    return YES;
}

- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope
{
    if (searchResults.count != 0) {
        [searchResults removeAllObjects];
    }
    for (int i=0; i< [self.arrProductList count]; i++)
    {
        NSString *string = [[self.arrProductList objectAtIndex:i] valueForKey:@"pname"];
        NSRange rangeValue = [string rangeOfString:searchText options:NSCaseInsensitiveSearch];
        if (rangeValue.length > 0)
        {
            NSLog(@"string contains bla!");

            [searchResults addObject:[self.arrProductList objectAtIndex:i]];
        }
        else
        {
            NSLog(@"string does not contain bla");
        }
    }
    NSLog(@"fiilterArray : %@",searchResults);
}

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