Iphone NSMutableArray丢失数据

我已经为

NSMutableArray

创建了一个属性，当为它赋值时，我已经编写了以下代码

[self setTotalCells:[[NSMutableArray alloc] initWithArray:[jsonDictionary valueForKey:@"data"]]];

我在搜索栏方法中使用它。但是，一旦我使用了该属性，数组就会变为空

cells = [[NSMutableArray alloc]init];
NSLog(@"filterContentForSearchText");
NSLog(@"**************************************************************");
if ([totalCells count]<= 0) {
    totalCells = [_jsonPropertiesDictionary valueForKey:@"data"];
}
NSLog(@"%@",totalCells);
NSLog(@"**************************************************************");
for (id cell in totalCells)
{
    NSLog(@"bedrooms : %@",[cell valueForKey:@"BEDROOMS"]);
    NSLog(@"DISPLAY_ADDRESS : %@",[cell valueForKey:@"DISPLAY_ADDRESS"]);
    NSLog(@"PRICE : %@",[cell valueForKey:@"PRICE"]);
    NSLog(@"searchText : %@",searchText);
    NSComparisonResult result = NSOrderedAscending;
    if ([[cell valueForKey:@"BEDROOMS"] isKindOfClass:[NSString class]] && [[cell valueForKey:@"BEDROOMS"] length] > 0) {
        result = [[cell valueForKey:@"BEDROOMS"] compare:searchText options:(NSCaseInsensitiveSearch) range:NSMakeRange(0, [searchText length])];

        if (result == NSOrderedSame)
            [self.filteredListContent addObject:cell];
    }
    if ([[cell valueForKey:@"DISPLAY_ADDRESS"] isKindOfClass:[NSString class]] && [cell valueForKey:@"DISPLAY_ADDRESS"] != nil && [cell valueForKey:@"DISPLAY_ADDRESS"] != @"" && [[cell valueForKey:@"DISPLAY_ADDRESS"] length] > 0) {
        result = [[cell valueForKey:@"DISPLAY_ADDRESS"] compare:searchText options:(NSCaseInsensitiveSearch) range:NSMakeRange(0, [searchText length])];

        if (result == NSOrderedSame)
            [self.filteredListContent addObject:cell];
    }
    if ([[cell valueForKey:@"PRICE"] isKindOfClass:[NSString class]] && [cell valueForKey:@"PRICE"] != nil && [[cell valueForKey:@"PRICE"] length] > 0) {
        result = [[cell valueForKey:@"PRICE"] compare:searchText options:(NSCaseInsensitiveSearch) range:NSMakeRange(0, [searchText length])];

        if (result == NSOrderedSame)
            [self.filteredListContent addObject:cell];
    }
    if ([searchText isEqualToString:@"" ]) {
        filteredListContent = totalCells;
        break;
    }
}
if (self.filteredListContent.count > 0) {
    cells = self.filteredListContent;//added by prajakta
}

[self.propertyList_table reloadData];
NSLog(@"filteredListContent : %@ ",filteredListContent);

---

任何帮助都将不胜感激

您为什么不使用这种方式进行筛选？它不会破坏您原始的数据源

cells = [[NSMutableArray alloc]init];
NSLog(@"filterContentForSearchText");
NSLog(@"**************************************************************");
if ([totalCells count]<= 0) {
    totalCells = [_jsonPropertiesDictionary valueForKey:@"data"];
}
NSLog(@"%@",totalCells);
NSLog(@"**************************************************************");

/*
 * replace your code FROM here...
 */

NSArray *filteredCells = [totalCells filteredArrayUsingPredicate:[NSPredicate predicateWithBlock:^BOOL(id evaluatedObject, NSDictionary *bindings) {
    NSDictionary *cell = (NSDictionary *)evaluatedObject;
    if ([[cell valueForKey:@"BEDROOMS"] isKindOfClass:[NSString class]] && [[cell valueForKey:@"BEDROOMS"] length] > 0) {
        return [[cell valueForKey:@"BEDROOMS"] compare:searchText options:(NSCaseInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
    }
    if ([[cell valueForKey:@"DISPLAY_ADDRESS"] isKindOfClass:[NSString class]] && [cell valueForKey:@"DISPLAY_ADDRESS"] != nil && [cell valueForKey:@"DISPLAY_ADDRESS"] != @"" && [[cell valueForKey:@"DISPLAY_ADDRESS"] length] > 0) {
        return [[cell valueForKey:@"DISPLAY_ADDRESS"] compare:searchText options:(NSCaseInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
    }
    if ([[cell valueForKey:@"PRICE"] isKindOfClass:[NSString class]] && [cell valueForKey:@"PRICE"] != nil && [[cell valueForKey:@"PRICE"] length] > 0) {
        return [[cell valueForKey:@"PRICE"] compare:searchText options:(NSCaseInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
    }
    return FALSE;
}]];

/*
 * TO here...
 */

if (self.filteredListContent.count > 0) {
    cells = self.filteredListContent;//added by prajakta
}

[self.propertyList_table reloadData];
NSLog(@"filteredListContent : %@ ",filteredListContent);

cells=[[NSMutableArray alloc]init]；
NSLog（@“filterContentForSearchText”）；
NSLog（@*****************************************************************************************************************”）；
如果（[totalCells count]0）{
return[[cell valueForKey:@“beddrooms”]比较：searchText选项：（NSCaseInsensitiveSearch）范围：NSMakeRange（0，[searchText长度]）；
}
如果（[[cell valueForKey:@“DISPLAY_ADDRESS”]是类：[NSString类]]和（&[cell valueForKey:@“DISPLAY_ADDRESS”]！=nil&&[cell valueForKey:@“DISPLAY_ADDRESS”！=@“&[cell valueForKey:@“DISPLAY_ADDRESS”]长度]>0）{
返回[[cell valueForKey:@“DISPLAY_ADDRESS”]比较：searchText选项：（NSCaseInsensitiveSearch）范围：NSMakeRange（0，[searchText length]）；
}
如果（[[cell valueForKey:@“PRICE”]是类的种类：[NSString类]]&&[cell valueForKey:@“PRICE”！=nil&[[cell valueForKey:@“PRICE”]长度]>0）{
返回[[cell valueForKey:@“PRICE”]比较：搜索文本选项：（NSCaseInsensitiveSearch）范围：NSMakeRange（0，[searchText length]）；
}
返回FALSE；
}]];
/*
*到这里。。。
*/
如果（self.filteredListContent.count>0）{
cells=self.filteredListContent；//由prajakta添加
}
[self.propertyList_table reloadData]；
NSLog（@“filteredListContent:%@”，filteredListContent）；

…您的问题是什么？问题是在一次迭代后，我在TotalCells中没有得到任何值。您的搜索方法非常有趣，为什么不尝试使用

-filteredArrayUsingPredicate:

方法过滤

NSArray

？它根本不会弄乱原始数据源。此外，您的代码片段并没有给我们提供太多的信息。它在哪里运行？我的搜索方法只有那个代码。你想知道什么？因此，我将相应地编辑我的问题。我建议您在访问值Hanks Holex时使用self.totalCells。我一定会试试这个。我不太确定您是如何以及在哪里丢失原始

NSArray

的内容的，您提供的代码片段似乎并不重要，但如果您真的丢失了数据，它可能会有一些。。。

cells = [[NSMutableArray alloc]init];
NSLog(@"filterContentForSearchText");
NSLog(@"**************************************************************");
if ([totalCells count]<= 0) {
    totalCells = [_jsonPropertiesDictionary valueForKey:@"data"];
}
NSLog(@"%@",totalCells);
NSLog(@"**************************************************************");

/*
 * replace your code FROM here...
 */

NSArray *filteredCells = [totalCells filteredArrayUsingPredicate:[NSPredicate predicateWithBlock:^BOOL(id evaluatedObject, NSDictionary *bindings) {
    NSDictionary *cell = (NSDictionary *)evaluatedObject;
    if ([[cell valueForKey:@"BEDROOMS"] isKindOfClass:[NSString class]] && [[cell valueForKey:@"BEDROOMS"] length] > 0) {
        return [[cell valueForKey:@"BEDROOMS"] compare:searchText options:(NSCaseInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
    }
    if ([[cell valueForKey:@"DISPLAY_ADDRESS"] isKindOfClass:[NSString class]] && [cell valueForKey:@"DISPLAY_ADDRESS"] != nil && [cell valueForKey:@"DISPLAY_ADDRESS"] != @"" && [[cell valueForKey:@"DISPLAY_ADDRESS"] length] > 0) {
        return [[cell valueForKey:@"DISPLAY_ADDRESS"] compare:searchText options:(NSCaseInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
    }
    if ([[cell valueForKey:@"PRICE"] isKindOfClass:[NSString class]] && [cell valueForKey:@"PRICE"] != nil && [[cell valueForKey:@"PRICE"] length] > 0) {
        return [[cell valueForKey:@"PRICE"] compare:searchText options:(NSCaseInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
    }
    return FALSE;
}]];

/*
 * TO here...
 */

if (self.filteredListContent.count > 0) {
    cells = self.filteredListContent;//added by prajakta
}

[self.propertyList_table reloadData];
NSLog(@"filteredListContent : %@ ",filteredListContent);