小编Deb*_*Tom的帖子

我是iOS的初学者,在桌面视图的帮助下创建了一个应用程序.我只是运行我的应用程序,在运行应用程序时,应用程序不会调用方法cellForRowIndexPath.我使用Json作为Web服务.在输出屏幕中,显示解析数据但不会在模拟器中显示.我把断点,我明白没有调用cellForRowIndexPath路径.我将datasourse和数据委托拖到xib文件的文件中.但没有任何事情发生......桌面视图显示但没有内容......我搞砸了..任何人请帮帮我...

@implementation MSPackagesController

@synthesize packageTable;
@synthesize packages;
@synthesize mainCtrl;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}


-(void)viewDidLoad
{
    [super viewDidLoad];
}

-(void)parseData    {

    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
    hud.animationType = MBProgressHUDAnimationFade;
    hud.detailsLabelText = @"Loading...";

    MSJsonParser *parser = [[MSJsonParser alloc]initWithParserType:kPackagesParsing];
    parser._parserSource = self;
    [parser requestParsingWithUrl:PACKAGES_LIST_URL];
}

-(void)sharePackageFromCell:(UIButton*)btn
{
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
    hud.animationType = MBProgressHUDAnimationFade;
    hud.detailsLabelText = @"Loading...";

    NSString *title = [[self.packages objectAtIndex:btn.tag] packageName]; …

我试图在 TestCoroutineDispatchers 和 runBlockingTest 的帮助下测试房间数据库的插入和获取。由于我需要创建数据库实例的上下文，因此我尝试在 androidTest 中实现测试，但出现以下错误。任何人都可以帮我解决一个问题。

我正在按照此链接中的说明进行操作，如下所示https://medium.com/@eyalg/testing-androidx-room-kotlin-coroutines-2d1faa3e674f

"未解析的参考：TestCoroutineDispatcher" "未解析的参考：TestCoroutineScope" "未解析的参考：runBlockingTest"

@ExperimentalCoroutinesApi
@RunWith(AndroidJUnit4::class)
class PokemonDatabaseTest {

    private lateinit var pokemonDao : PokemonFavouriteDao
    private lateinit var db : PokemonDatabase


    val testDispatcher = TestCoroutineDispatcher()
    val testScope = TestCoroutineScope(testDispatcher)


    @Before
    fun setUp() {

      db = Room
          .inMemoryDatabaseBuilder(InstrumentationRegistry.getInstrumentation().context, PokemonDatabase::class.java)
          .setTransactionExecutor(testDispatcher.asExecutor())
          .setQueryExecutor(testDispatcher.asExecutor()).build()
        pokemonDao = db.pfDao
    }

    @Test
    fun storeFavouritePokemon()   = runBlockingTest {
        val pokemon = DataFactory.makePokemon()
        assertThat(pokemonDao.getFavouritePokemon(), null)
    }
}

我正在使用以下依赖项：

implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.9'
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9'
testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.4.2'

androidTestImplementation 'androidx.test:runner:1.1.0'
androidTestImplementation 'androidx.test:rules:1.1.0'
testImplementation 'androidx.test:core:1.2.0'
testImplementation …