Программно созданный макет вылетает из приложения в ландшафтном режиме?

Question

Я установил свой макет на xml, который имеет ExpandableListView в качестве root.Поскольку прокручиваемый вид не может быть помещен (или очень сложен) внутри другого прокручиваемого вида, я решил поместить все нужные мне представления вместе с ExpandableListView как headers и footers. * 1006.*

В мои header я положил 3-4 маленьких LinearLayouts, каждый из которых имеет 1-2 TextViews.Пока все работает нормально.

Теперь, в моем footer, я хочу добавить ListView вид, имеющий примерно 3-4 strings.Поскольку я не знаю размера списка, я решил создать представление программно.

Когда я включаю это представление, приложение перестает работать, когда:

1. Ориентация изменяется с *От 1021 * до Landscape
2. Попытка открытия макета в режиме Landscape

Итак, в основном Landscape режим не работает, но я не знаюпочему?

Вот мой код:

class MyFragment: Fragment() {
    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        super.onCreateView(inflater, container, savedInstanceState)

        val myView = inflater.inflate(R.layout.sd, container, false)
        val expView = myView.findViewById<ExpandableListView>(R.id.sd_exp)!!
        val expAdapter = AdapterEV(activity!!, myData)
        expView.setAdapter(expAdapter)
        expView.setOnChildClickListener { /* handling child click */ }

        // example how I add view in header
        val hView = inflater.inflate(R.layout.sd_h1, container, false)
        hView.findViewById<TextView>(R.id.sd_h1).text = myString
        expView.addHeaderView(hView)

        // now here is the problem
        val fView = setListView(myList, inflater, container)
        expView.addFooterView(fView)

        return myView
    }

    private fun setListView(myList: ArrayList<String>, inflater: LayoutInflater, container: ViewGroup?): View {
        val rootLayout = LinearLayout(activity)
        rootLayout.orientation = LinearLayout.VERTICAL
        rootLayout.layoutParams = LinearLayout.LayoutParams(
            LinearLayout.LayoutParams.MATCH_PARENT,
            LinearLayout.LayoutParams.WRAP_CONTENT
        )

        // removing the below for loop doesn't help
        for (i in 0 until myList.size) {
            val childView = inflater.inflate(R.layout.sd_f1, container, false)
            // even below lines don't work in place of above line
            // val childView = LayoutInflater.from(activity).inflate(R.layout.sd_f1, null)
            // val childView = LayoutInflater.from(activity).inflate(R.layout.sd_f1, rootLayout, true)
            childView.findViewById<TextView>(R.id.sd_f1_t1).text = "${i+1}"
            childView.findViewById<TextView>(R.id.sd_f1_t2).text = myList[i]
            rootLayout.addView(childView)
        }

        return rootLayout
    }

}

Файл sd.xml, имеющий ExpandableListView:

<ExpandableListView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/sd_exp"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
</ExpandableListView>

И макет sd_f1.xml Яв том числе в setListView есть:

<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >
    <TextView 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        android:id="@+id/sd_f1_t1" />
    <TextView 
        android:layout_width="wrap_content"     
        android:layout_height="wrap_content"
        android:id="@+id/sd_f1_t2" />
</LinearLayout>

--- РЕДАКТИРОВАТЬ ---

Ошибка logcat:

java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams cannot be cast to android.widget.AbsListView$LayoutParams
        at android.widget.ListView.removeUnusedFixedViews(ListView.java:2070)
        at android.widget.ListView.layoutChildren(ListView.java:1931)
        at android.widget.AbsListView.onLayout(AbsListView.java:2198)
        at android.view.View.layout(View.java:20715)
        at android.view.ViewGroup.layout(ViewGroup.java:6202)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
        at android.view.View.layout(View.java:20715)
        at android.view.ViewGroup.layout(ViewGroup.java:6202)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1565)
        at android.view.View.layout(View.java:20715)
        at android.view.ViewGroup.layout(ViewGroup.java:6202)
        at androidx.drawerlayout.widget.DrawerLayout.onLayout(DrawerLayout.java:1231)
        at android.view.View.layout(View.java:20715)
        at android.view.ViewGroup.layout(ViewGroup.java:6202)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
        at android.view.View.layout(View.java:20715)
        at android.view.ViewGroup.layout(ViewGroup.java:6202)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1565)
        at android.view.View.layout(View.java:20715)
        at android.view.ViewGroup.layout(ViewGroup.java:6202)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
        at android.view.View.layout(View.java:20715)
        at android.view.ViewGroup.layout(ViewGroup.java:6202)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1565)
        at android.view.View.layout(View.java:20715)
        at android.view.ViewGroup.layout(ViewGroup.java:6202)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
        at com.android.internal.policy.DecorView.onLayout(DecorView.java:903)
        at android.view.View.layout(View.java:20715)
        at android.view.ViewGroup.layout(ViewGroup.java:6202)
        at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2802)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2329)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1469)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7209)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1050)
        at android.view.Choreographer.doCallbacks(Choreographer.java:862)
        at android.view.Choreographer.doFrame(Choreographer.java:797)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1036)
        at android.os.Handler.handleCallback(Handler.java:874)
        at android.os.Handler.dispatchMessage(Handler.java:100)
        at android.os.Looper.loop(Looper.java:198)
        at android.app.ActivityThread.main(ActivityThread.java:6729)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

Answer 1

Согласно вашей трассировке стека,

LinearLayout.LayoutParams( должно быть AbsListView.LayoutParams(

Answer 2

Попробуйте использовать контекст из контейнера, полученного в onCreateView вместо Activity, когда создаете экземпляр LinearLayout