iphone - 使用单个NSMutableArray填充UITableView Sections表

抱歉再次提出完整说明的问题。我所拥有的resultsArray具有从服务器获取的标题说明等，但问题是我想在各部分中显示此数据。

因此，假设有三个部分来自数组，那么如何使用单个resultArray填充每个部分中的数据。

   - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
    {
return [categoryArray objectAtIndex:section];
}

resutArray具有所有节的所有数据，因此如何根据节显示

数组的结构是

             ObjectData *theObject =[[ObjectData alloc] init];
            [theObject setCategory:[dict objectForKey:@"category"]];
            [theObject setSub_Category:[dict objectForKey:@"sub_Category"]];
            [theObject setContent_Type:[dict objectForKey:@"content_Type"]];
            [theObject setContent_Title:[dict objectForKey:@"content_Title"]];
            [theObject setPublisher:[dict objectForKey:@"publisher"]];
            [theObject setContent_Description:[dict objectForKey:@"content_Description"]];
    [theObject setContent_ID:[dict objectForKey:@"content_ID"]];
    [theObject setContent_Source:[dict objectForKey:@"content_Source"]];
        [resultArray addObject:theObject];

最佳答案

看起来好像您有ObjectData，它的属性称为category，并且您想显示具有按类别分组的ObjectData的表视图。
您可以这样做来生成一个NSDictionary，其键=唯一类别，值=该类别的ObjectData的NSArray。然后，您可以将该NSDictionary用作数据源的数据。

NSArray *tempArray =[[DataController staticVersion] startParsing:@"http://www.celeritas-solutions.com/pah_brd_v1/productivo/catalogMaster.php"];
// dictionary for cells, you'll probably want this to be ivar or property
NSMutableDictionary* dictionary = [NSMutableDictionary dictionary];
// array for headers, you'll probably want this to be ivar or property
NSMutableArray* categories = [NSMutableArray array];

for (int i = 0; i<[tempArray count]; i++) {

    id *item = [tempArray objectAtIndex:i];
    NSDictionary *dict = (NSDictionary *) item;
    ObjectData *theObject =[[ObjectData alloc] init];
    [theObject setCategory:[dict objectForKey:@"category"]];
    [theObject setSub_Category:[dict objectForKey:@"sub_Category"]];
    [theObject setContent_Type:[dict objectForKey:@"content_Type"]];
    [theObject setContent_Title:[dict objectForKey:@"content_Title"]];
    [theObject setPublisher:[dict objectForKey:@"publisher"]];
    [theObject setContent_Description:[dict objectForKey:@"content_Description"]];
    [theObject setContent_ID:[dict objectForKey:@"content_ID"]];
    [theObject setContent_Source:[dict objectForKey:@"content_Source"]];


    [resultArray addObject:theObject];
    [theObject release];
    theObject=nil;

    // here you populate that dictionary and categories array
    NSMutableArray* objs = [dictionary objectForKey:theObject.category];
    if(!objs)
    {
        objs = [NSMutableArray array];
        [dictionary setObject:objs forKey:theObject.category];
        [categories addObject:theObject.category];
    }
    [objs addObject:theObject];
}

然后在您的控制器中：

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

    return [categories count] ;

}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
 {

      return [categories objectAtIndex:section];
}



- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"CellID";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil)
    {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue2 reuseIdentifier:CellIdentifier];
    }

    NSString* category = [categories objectAtIndex: indexPath.section];
    NSMutableArray* objs = [dictionary objectForKey:category];
    ObjectData* obj = [objs objectAtIndex: indexPath.row];

    // populate cell here

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

    NSString* category = [categories objectAtIndex:section];
    NSMutableArray* objs = [dictionary objectForKey:category];
    return [objs count];
}

请注意，这只是一个示例，您可以根据需要对其进行优化。

关于iphone - 使用单个NSMutableArray填充UITableView Sections表，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/15631115/