如何将对象从 NSDictionary 添加到 NSArray 以获取 UIActionSheet UIButton 列

Question

my dictionary

    myDictionary = [[publicDataCityArray valueForKey:@"data"] valueForKey:@"name"];
    NSLog(@"myDictionary is %@ myDictionary count is %i",   myDictionary,  [myDictionary count]);

NSLog输出：

myDictionary is (
    Roma,
    Milano,
    Rimini,
    Venezia,
    Firenze,
    Napoli,
    Cesenatico,
    Cervia,
    Recco,
    "Abano Terme",
    "Abbadia Cerreto",
    "Abbadia Lariana",
    "Abbadia San Salvatore",
    Abbasanta,
    Abbateggio,
    Abbiategrasso,
    Abetone,
    Abriola,
    Acate,
    Accadia,
    Acceglio,
    Accettura,
    Acciano,
    Accumoli,
    Acerenza,
    Acerno,
    Acerra,
    "Aci Bonaccorsi",
    "Aci Castello",
    "Aci Catena",
    "Aci Sant'Antonio",
    Acireale,
    Acquacanina,
    Acquafondata,
    Acquaformosa,
    Acquafredda,
    Acqualagna,
    "Acquanegra Cremonese",
    "Acquanegra sul Chiese",
    Acquapendente
) myDictionary count is 40

我正在尝试填充UIActionSheet数组：

-(void) someMethod{
    NSError *requestError = nil;
    NSString *savedValue = [[NSUserDefaults standardUserDefaults] stringForKey:@"token"];
    NSString *stringWithToken = [NSString stringWithFormat:@"%@&token=%@",kCityURL, savedValue];
    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:stringWithToken]];
    NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&requestError];
    NSError *jsonParsingError = nil;
    if (requestError) {
        NSLog(@"sync. request failed with error: %@", requestError);
    }
    else {
        // handle data
        NSArray *publicDataCityArray =  [NSJSONSerialization JSONObjectWithData:response options:0 error:&jsonParsingError];
        myDictionary = [[publicDataCityArray valueForKey:@"data"] valueForKey:@"name"];
        NSLog(@"myDictionary is %@ myDictionary count is %i",   myDictionary,  [myDictionary count]);
        for (NSDictionary *publicCityDataDict in publicCityDataArray) {
            arrayCitiesActionSheet = [[NSArray alloc] initWithObjects: myDictionary, @"city5", @"city6", @"city7", @"city8",@"city9", @"city10", @"city11", @"city12", @"city13", @"city14", @"city15", @"city16", nil];

           // arrayCitiesActionSheet = [myDictionary allValues];
        }
    }
    UIActionSheet* actionSheet = [[UIActionSheet alloc] init];
    actionSheet.title = @"SELECT A CITY";
    actionSheet.delegate = self;
    for(int i=0;i<[myDictionary count];i++)
    {
        [actionSheet addButtonWithTitle:[arrayCitiesActionSheet objectAtIndex:i]];
    }
    actionSheet.cancelButtonIndex = [actionSheet addButtonWithTitle:@"Cancel"];
    [actionSheet showInView:[UIApplication sharedApplication].keyWindow];
}

Answer 1

你有没有尝试过把myDictionary当作数组，

试试这个，

 for(int i=0;i<[myDictionary count];i++)
    {
        [actionSheet addButtonWithTitle:[arrayCitiesActionSheet objectAtIndex:i]];
    }

将其替换为

for(int i=0;i<[myDictionary count];i++)
        {
            [actionSheet addButtonWithTitle:[myDictionary objectAtIndex:i]];
        }