android-kotlin-java.lang.ClassCastException

RecyclerView多视图类型错误

FATAL EXCEPTION: main
       Process: com.example.expertsaraqeb.myapplication, PID: 4329
       java.lang.ClassCastException: com.example.expertsaraqeb.myapplication.Madapter$MyHolder cannot be cast to com.example.expertsaraqeb.myapplication.MyViewH
06-05 07:00:35.897 4329-4329/com.example.expertsaraqeb.myapplication E/AndroidRuntime: FATAL EXCEPTION: main
   Process: com.example.expertsaraqeb.myapplication, PID: 4329
   java.lang.ClassCastException: com.example.expertsaraqeb.myapplication.Madapter$MyHolder cannot be cast to com.example.expertsaraqeb.myapplication.MyViewH
       at com.example.expertsaraqeb.myapplication.Madapter.onBindViewHolder(Madapter.kt:27)
       at com.example.expertsaraqeb.myapplication.Madapter.onBindViewHolder(Madapter.kt:11)
       at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:6356)
       at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:6389)
       at android.support.v7.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:5335)
       at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5598)
       at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5440)
       at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5436)
       at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2224)
       at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1551)
       at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1511)
       at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:595)
       at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3583)
       at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:3025)
       at android.view.View.measure(View.java:16749)
       at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:934)
       at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java:973)
       at android.view.View.measure(View.java:16749)
       at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1658)
       at android.view.View.measure(View.java:16749)
       at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5295)
       at android.support.design.widget.CoordinatorLayout.onMeasureChild(CoordinatorLayout.java:714)
       at android.support.design.widget.HeaderScrollingViewBehavior.onMeasureChild(HeaderScrollingViewBehavior.java:90)
       at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onMeasureChild(AppBarLayout.java:1391)
       at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:784)
       at android.view.View.measure(View.java:16749)
       at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:1081)
       at android.view.View.measure(View.java:16749)
       at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5295)
       at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
       at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139)
       at android.view.View.measure(View.java:16749)
       at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5295)
       at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1413)
       at android.widget.LinearLayout.measureVertical(LinearLayout.java:696)
       at android.widget.LinearLayout.onMeasure(LinearLayout.java:589)
       at android.view.View.measure(View.java:16749)
       at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5295)
       at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
       at android.view.View.measure(View.java:16749)
       at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5295)
       at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1413)
       at android.widget.LinearLayout.measureVertical(LinearLayout.java:696)
       at android.widget.LinearLayout.onMeasure(LinearLayout.java:589)
       at android.view.View.measure(View.java:16749)
       at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5295)
       at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
       at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2439)
       at android.view.View.measure(View.java:16749)
       at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2072)
    at android.

代码：

package com.example.expertsaraqeb.myapplication
导入android.content.Context
导入android.support.v7.widget.RecyclerView
导入android.util.Log
导入android.view.LayoutInflater
导入android.view.view
导入android.view.ViewGroup
类Madapter（val-context:context，val-array:ArrayList）：RecyclerView.Adapter（）{
变量类型1=15
变量类型2=28
覆盖getItemViewType（位置：Int）：Int{
如果（位置==0）{
返回类型1
}否则{
返回类型2
}
}
重写getItemCount（）：Int{
返回数组.size
}
覆盖BindViewHolder（p0:MyHolder？，p1:Int）{
如果（p0！！.itemViewType==TYPE1）{
val my=p0作为MyViewH//此处出错
Log.d（“walidalhasn”、“p”+getItemViewType（p1））
}else if（p0.itemViewType==TYPE1）{
Log.d（“walidalhasn”、“j”+getItemViewType（p1））
}
}
override fun onCreateViewHolder（p0:ViewGroup？，p1:Int）：MyHolder{
if（getItemViewType（p1）=类型1）{
val view=LAYOUTINGFLATER.from（上下文）。充气（R.layout.row\U no\U color，p0，false）
返回MyViewH（视图）
}否则{
val view=LAYOUTIONFLATER.from（上下文）。充气（R.layout.home_行，p0，false）
返回MyHolder（视图）
}
}
打开类MyHolder（视图：视图）：RecyclerView.ViewHolder（视图）
}
类MyViewH（视图：视图？）：Madapter.MyHolder（视图！！）

在

onCreateViewHolder（p0:ViewGroup？，p1:Int）

中，

p1

表示

viewType

应该是

if (p1 == TYPE1) {

而不是

if (getItemViewType(p1) == TYPE1) {

---

另外，您可能希望从

getItemCount

返回

array.size+1

，因为您添加了标题视图。

致命异常：主进程：com.alhasnaps.resimleri，PID:17516 kotlin.TypeCastException:null不能转换为非null类型android.widget.ImageView

我在代码中看不到任何与ImageView相关的内容。

if (getItemViewType(p1) == TYPE1) {