setEmptyView on ListView not showing its view in a android app?

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Your TextView should be placed right under the ListView item with its visibility set to gone (android:visibility=”gone”), do not place it in another layout.
This is how your main layout would look like

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ListView
        android:id="@+id/listViewFangbuch"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>
    <TextView
        android:id="@+id/empty_list_item"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone"
        android:text="@string/emptyList" >
    </TextView>

</LinearLayout>

And this is how your code might look like

ListView view = (ListView)findViewById(R.id.listViewFangbuch);
view.setEmptyView(findViewById(R.id.empty_list_item));

ArrayAdapter<Session> adapter1 = new ArrayAdapter<Session>(this, android.R.layout.simple_list_item_1, 
        android.R.id.text1, MainController.getInstanz().getItems());
view.setAdapter(adapter1);

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