ExpandableListView在RelativeLayout中隱藏TextView

Question

您可以嘗試從我的代碼下面的TestView覆蓋 ExpandableListView並不可見。 我希望它位於頂部，然後是ExpandableListView，底部是LinearLayout和一些元素。

你知道爲什麼會發生這種情況，以及如何解決？ 感謝

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    > 

<TextView 
      android:id="@+id/tvteam" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 

      android:layout_alignParentTop="true" 
      android:layout_above="@+id/listViewTeams" 
      android:text="test" 

       /> 


    <ExpandableListView 
     android:id="@+id/listViewTeams" 
     android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="tvteam" 
     /> 

    <LinearLayout 
     android:id="@+id/llbottom" 
      android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
android:layout_alignParentBottom="true" 
    android:orientation="vertical" 

     > 
     <EditText 
      android:id="@+id/searchteam" 
       android:layout_width="@dimen/editwidthsml" 
      android:layout_height="@dimen/editheightsml" 
      android:singleLine="true" 
      android:imeOptions="actionSearch" 
      android:layout_margin="2dp" 
      android:hint="@string/searchteam" /> 
      <LinearLayout 

      android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:orientation="horizontal" 
    android:weightSum="3" 
     > 
     <Button 
      android:id="@+id/btnfilterteams1" 
      android:layout_width="0dp" 
    android:layout_height="wrap_content" 
    android:layout_weight="1" 
      android:background="@drawable/selectorface" 
      android:text="@string/tourneyteams" 
      android:tag="btnfilterteams1" 
      /> 

     <Button 
       android:id="@+id/btnfilterteams2" 
      android:layout_width="0dp" 
    android:layout_height="wrap_content" 
    android:layout_weight="1" 
      android:background="@drawable/selectorface" 
       android:text="@string/allteams" 
       android:tag="btnfilterteams2" 
      /> 

     <Button 
      android:id="@+id/btnfilterteams3" 
      android:layout_width="0dp" 
    android:layout_height="wrap_content" 
    android:layout_weight="1" 
      android:background="@drawable/selectorface" 
       android:text="@string/playersonly" 
       android:tag="btnfilterteams3" 
      /> 
     </LinearLayout> 

    </LinearLayout> 

</RelativeLayout> 

Answer 1

android:layout_below="tvteam" 

這是不對的，應該是：

android:layout_below="@+id/tvteam" 

Answer 2

嘗試刪除android:layout_above="@+id/listViewTeams"