ios - How to add objects from an NSDictionary to an NSArray for a UIActionSheet UIButton list

Question

my dictionary

    myDictionary = [[publicDataCityArray valueForKey:@"data"] valueForKey:@"name"];

    NSLog(@"myDictionary is %@ myDictionary count is %i",   myDictionary,  [myDictionary count]);

NSLog output:

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

and I'm trying to populate the UIActionSheet array:

-(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myDictionary作为数组，

尝试这个 ，

 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]];
        }