私はiOSプログラミングの初心者です。テーブルビューをドリルダウンするために、jsonから配列の配列を作成しようとしています。だから私はこれを取得したい: blogsList --> blogPosts --> postDetailView. 私はそれに2日間費やしましたが、まだ結果はありません。助けてください。
これが私のjsonです:
{ "blogs": [{"ID":8,"Title":"ringroads","Name":"utf8 coded name
string","Logotype":"..\/images\/gup_logos\/ringroads_logo_mini.jpg","posts":
[{"ID":38,"URLTitle":"remont_dorog_v_moskve","title":"utf8 coded title string","Desc":"utf8 coded description
string","0":"","Preview":"remont_dorog_v_moskve.jpg","create_time":"2012-05-22
17:40:11"}]},{"ID":9,"Title":"gormost","Name":"utf8 coded name
string","Logotype":"..\/images\/gup_logos\/gormost_logo_mini.jpg","posts":
[{"ID":35,"URLTitle":"rabochie_budni_uchastka_gormost__fontany","title":"utf8 coded
title string","Desc":"utf8 coded description
string.","0":"","Preview":"rabochie_budni_uchastka_gormost__fontany.jpg","create_time":"2012
-05-18 10:17:32"}]},{"ID":10,"Title":"unecomoscow","Name":"utf8 coded name
string","Logotype":"..\/images\/gup_logos\/unecomoscow_logo_mini.jpg","posts":
[{"ID":52,"URLTitle":"documentooborot","title":"utf8 coded title string","Desc":"utf8
coded description string.","0":"","Preview":"documentooborot.jpg","create_time":"2012-
06-05 14:02:23"},{"ID":49,"URLTitle":"grebnoy_kanal","title":"utf8 coded title
string","Desc":"utf8 coded description
string.","0":"","Preview":"grebnoy_kanal.jpg","create_time":"2012-05-31 14:37:08"},
{"ID":46,"URLTitle":"itogi_ozp","title":"utf8 coded title string.","Desc":"utf8 coded
description string.","0":"","Preview":"itogi_ozp.jpg","create_time":"2012-05-30
10:13:11"}]}] }
これが私のコードです:
...
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
[connection release];
NSString *responseStringBlogs = [[NSString alloc] initWithData:responseDataBlogs encoding:NSUTF8StringEncoding];
self.responseDataBlogs = nil;
NSDictionary *results = [responseStringBlogs JSONValue];
NSArray *blogs = [results objectForKey:@"blogs"];
int i;
NSMutableDictionary *blogsDict = [[NSMutableDictionary alloc] init];
for(i = 0; i < [blogs count]; i++){
NSDictionary *tmpBlog = [blogs objectAtIndex:i];
NSString *blogName = [tmpBlog objectForKey:@"Name"];
NSDictionary *blogPosts = [tmpBlog objectForKey:@"posts"];
//NSDictionary *blog = [NSDictionary dictionaryWithObjectsAndKeys:blogName, @"blogName", blogPosts, @"posts", nil];
NSMutableDictionary *blog = [[NSMutableDictionary alloc] init];
[blog setObject:blogName forKey:@"blogName"];
[blog setObject:blogPosts forKey:@"posts"];
//[blog setObject:urlTitle forKey:@"urlTitle"];
blogsDict = blog;
[arrayForTable addObject:blogsDict];
}
NSLog(@"blogsArr == %@", arrayForTable);
NSLog は、キー "blogName" と "posts" を持つ辞書の配列を示しています。次に、cellForRowAtIndexPath メソッドを使用します。
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
...
NSDictionary *dict = [arrayForTable objectAtIndex:indexPath.row];
cell.textLabel.text = [dict objectForKey:@"blogName"];
}
最初の tableView に blogNames のリストが表示されます。次に、didSelectRowAtIndexPath メソッドを使用します。
しかし、ここでは、ユーザーがブログを選択したときに、次の tableView に投稿リストを表示するための postsTitle を取得できません。私は何を間違っていますか?私を助けてください!
Upd: 投稿を含む辞書は配列のように作成され、必要なキー ("desc"、"title" など) がないと思います。この提案のコードに間違いはありません。