Question

更新

我正在进行api调用getPacks（）并成功获取两个变量_numberOfPacks和_numberOfAutoRefills的值。

但是，当我尝试将其放入标签时，它会失败，并将输出设为（null）Packs＆amp; （null）Autorefiils

按以下顺序进行调用：

getpacks（）------- first（它将_numberOfPacks和_numberOfAutoRefills上的值设置为全局变量
drawQuantity（）-----在标签上设置_numberOfPacks和_numberOfAutoRefills。

-(void) getPacks: (IHPlacedOrder*)order{

NSOperationQueue *networkQueue = [[NSOperationQueue alloc] init];
networkQueue.maxConcurrentOperationCount = 5;
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://XXXXXXX.XXXXX/%@",order.ID]];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc]
                                     initWithRequest:request];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSString *string = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];

    if([string isEqualToString:@""]){

    } else {

        NSMutableDictionary *dict=[NSJSONSerialization JSONObjectWithData:[string dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:nil];

        NSLog(@"%@",dict);

        _numberOfPacks = [[dict objectForKey:@"prescription_interval"] valueForKey:@"quantity_per_interval"];
        _numberOfAutoRefills = [[dict objectForKey:@"prescription_interval"]valueForKey:@"num_intervals"];

        NSLog(@"PACKS:%@ , AUTOREFILLS:%@",_numberOfPacks,_numberOfAutoRefills);

        _quantity.text = [NSString stringWithFormat: @"%@,%@",_numberOfPacks,_numberOfAutoRefills];

    }

} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"%s: AFHTTPRequestOperation error: %@", __FUNCTION__, error);
}];

[networkQueue addOperation:operation];

}

接下来是：

-(void)drawQuantity: (IHPlacedOrder*)order{

    PPLinearLayoutLabelItem *quantityLabel = [[PPLinearLayoutLabelItem alloc] initWithText:[NSString stringWithFormat:@"%@ QUANTITY & %@ REFILLS", _numberOfPacks,_numberOfAutoRefills] font:[PPFonts regular18] maxWidth:[LayoutValues getMaxWidthClipped]];
    [quantityLabel setPaddingBottom:5];
    [quantityLabel setPaddingTop:20];
    [self.topContainerContent addObject:quantityLabel];

    NSString* quantityText = [NSString stringWithFormat:@"Packs + Autorefills"];


    PPLinearLayoutLabelItem *quantity = [[PPLinearLayoutLabelItem alloc] initWithText:quantityText font:[PPFonts genericParagraphFontBold] maxWidth:[LayoutValues getMaxWidthClipped]];
    [quantity setPaddingBottom:20];
    [self.topContainerContent addObject:quantity];

    LinearLayoutHorizontalLine *line1 = [[LinearLayoutHorizontalLine alloc] initWithMaxWidth:[LayoutValues getMaxWidthClipped]];
    [self.topContainerContent addObject:line1];
}

Answer 1

我找到了解决方案。我使用错误的方法调用来设置标签。问题是我的应用程序使用PPLinearLayoutLabelItem作为自定义构建标签。我不得不打电话给[self.quantity setLabel：@＆＃34;％@＆＃34;，data_fromapi]以使其正常工作。 setText只是在PPLinearLayoutLabelItem类中设置文本而不设置Label。

目标C在api调用后设置标签

1 个答案: