將包有 dictionary 的 nsarray 轉成 dictionary ， key 為高亮的那一行。

- (NSMutableDictionary *)indexKeyedDictionaryFromArray:(NSArray *)array
{
    id objectInstance;
    
    NSMutableDictionary *mutableDictionary = [[NSMutableDictionary alloc] init];
    for (objectInstance in array) {
        
        [mutableDictionary setObject:objectInstance forKey:[NSString stringWithFormat:@"%@", [objectInstance objectForKey:@"name"]]];

    }
    return (NSMutableDictionary *)mutableDictionary;
}

使用範例

    NSArray *array = [NSArray arrayWithObjects:
                      [NSDictionary dictionaryWithObjectsAndKeys:@"mark", @"name", @"100", @"score", nil],
                      [NSDictionary dictionaryWithObjectsAndKeys:@"tom", @"name", @"78", @"score", nil],
                      [NSDictionary dictionaryWithObjectsAndKeys:@"mary", @"name", @"81", @"score", nil],
                      [NSDictionary dictionaryWithObjectsAndKeys:@"sandy", @"name", @"65", @"score", nil],
                      [NSDictionary dictionaryWithObjectsAndKeys:@"sam", @"name", @"98", @"score", nil],
                      nil];
    
    NSDictionary *dictionary = [self indexKeyedDictionaryFromArray:array];