Android RecyclerView：未连接适配器；跳过kotlin中的布局_Android_Kotlin

Android RecyclerView：未连接适配器；跳过kotlin中的布局

android kotlin

Android RecyclerView：未连接适配器；跳过kotlin中的布局,android,kotlin,Android,Kotlin,recyclerView不显示任何内容我检查了适配器及其项（notifyDatasetChanged已调用）和调用线程，它应该是工作我使用的是android.support.v7.widget.RecyclerView 视图类： class HomeView(private val context: Context, swipeRefreshEnabled: Boolean = true) : HomeViewContract { private var mRootVie

recyclerView不显示任何内容

我检查了适配器及其项（notifyDatasetChanged已调用）和调用线程，它应该是工作

我使用的是

android.support.v7.widget.RecyclerView

视图类：

    class HomeView(private val context: Context, swipeRefreshEnabled: Boolean = true) : HomeViewContract {

    private var mRootView: View = context.inflate(R.layout.fragment_home)
    private var mAdapter: HomeAdapter
    private var list: RecyclerView

    init {
        Log.d("HomeView","init called from ${Thread.currentThread().name}")
        mAdapter = HomeAdapter()
        this.list = mRootView.findViewById(R.id.home_recycler_view) as RecyclerView
        val linearLayoutManager = LinearLayoutManager(context)
        linearLayoutManager.orientation = LinearLayoutManager.VERTICAL
        list.apply{
            adapter = mAdapter
            layoutManager = linearLayoutManager
        }
      // ...
    }
}

class HomeFragment : Fragment() {
private lateinit var homeView: HomeView

override fun onCreateView(...) = container?.inflate(R.layout.fragment_home)
fun make(context: Context){
    this.homeView = HomeView(context)
}

val homeFragment = HomeFragment()
            homeFragment.make(this)
            loadFragment(homeFragment)

片段：

    class HomeView(private val context: Context, swipeRefreshEnabled: Boolean = true) : HomeViewContract {

    private var mRootView: View = context.inflate(R.layout.fragment_home)
    private var mAdapter: HomeAdapter
    private var list: RecyclerView

    init {
        Log.d("HomeView","init called from ${Thread.currentThread().name}")
        mAdapter = HomeAdapter()
        this.list = mRootView.findViewById(R.id.home_recycler_view) as RecyclerView
        val linearLayoutManager = LinearLayoutManager(context)
        linearLayoutManager.orientation = LinearLayoutManager.VERTICAL
        list.apply{
            adapter = mAdapter
            layoutManager = linearLayoutManager
        }
      // ...
    }
}

class HomeFragment : Fragment() {
private lateinit var homeView: HomeView

override fun onCreateView(...) = container?.inflate(R.layout.fragment_home)
fun make(context: Context){
    this.homeView = HomeView(context)
}

val homeFragment = HomeFragment()
            homeFragment.make(this)
            loadFragment(homeFragment)

活动：

    class HomeView(private val context: Context, swipeRefreshEnabled: Boolean = true) : HomeViewContract {

    private var mRootView: View = context.inflate(R.layout.fragment_home)
    private var mAdapter: HomeAdapter
    private var list: RecyclerView

    init {
        Log.d("HomeView","init called from ${Thread.currentThread().name}")
        mAdapter = HomeAdapter()
        this.list = mRootView.findViewById(R.id.home_recycler_view) as RecyclerView
        val linearLayoutManager = LinearLayoutManager(context)
        linearLayoutManager.orientation = LinearLayoutManager.VERTICAL
        list.apply{
            adapter = mAdapter
            layoutManager = linearLayoutManager
        }
      // ...
    }
}

class HomeFragment : Fragment() {
private lateinit var homeView: HomeView

override fun onCreateView(...) = container?.inflate(R.layout.fragment_home)
fun make(context: Context){
    this.homeView = HomeView(context)
}

val homeFragment = HomeFragment()
            homeFragment.make(this)
            loadFragment(homeFragment)

框架将自动调用片段的

onCreateView

方法。此调用创建的布局将包含您的

RecyclerView

的一个实例，并且此布局实例将是布局过程的一部分

您在

HomeView

中所做的是扩展布局的另一个实例，并将适配器添加到第二个实例中的

RecyclerView

相反，您可以在

onViewCreated

中创建

HomeView

，如下所示：

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    this.homeView = HomeView(context, view)
}

然后在此

视图

实例中找到

RecyclerView

（这是您的

onCreateView

方法所膨胀的一个，框架只是将其传递给您）：