Question

Possible Duplicate:
Call removeView() on the child’s parent first

My activity consist of 3 Listview inside 3 corresponding linear layouts.I am getting the “The specified child already has a parent. You must call removeView() on the child’s parent first.” error in it,when I try to toggle among the listview.It is working fine when I go one by other.Kindly help me with a snippet or example to fix on this.Thank you.

My error log is

12-14 15:32:50.017: E/AndroidRuntime(5102): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.view.ViewGroup.addViewInner(ViewGroup.java:1976)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.view.ViewGroup.addView(ViewGroup.java:1871)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.view.ViewGroup.addView(ViewGroup.java:1828)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.view.ViewGroup.addView(ViewGroup.java:1808)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at com.kk.World.TheWorld.getView(TheWorld.java:629)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at com.kk.World.TheWorld.onClick(TheWorld.java:428)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.view.View.performClick(View.java:2538)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.view.View$PerformClick.run(View.java:9152)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.os.Handler.handleCallback(Handler.java:587)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.os.Handler.dispatchMessage(Handler.java:92)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.os.Looper.loop(Looper.java:130)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at android.app.ActivityThread.main(ActivityThread.java:3687)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at java.lang.reflect.Method.invokeNative(Native Method)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at java.lang.reflect.Method.invoke(Method.java:507)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
12-14 15:32:50.017: E/AndroidRuntime(5102):     at dalvik.system.NativeStart.main(Native Method)

My view is

    <ListView
        android:id="@id/android:list"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@android:color/transparent"
        android:cacheColorHint="#00000000" />
</LinearLayout>

<LinearLayout
    android:id="@+id/statelayoutStg"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_below="@id/state_ll"
    android:background="@drawable/mesh"
    android:orientation="vertical"
    android:visibility="invisible" >

    <ListView
        android:id="@id/android:list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="@android:color/transparent"
        android:cacheColorHint="#00000000" />
</LinearLayout>

<LinearLayout
    android:id="@+id/citylayoutStg"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_below="@id/city_ll"
    android:background="@drawable/mesh"
    android:orientation="vertical"
    android:visibility="invisible" >

    <ListView
        android:id="@id/android:list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="@android:color/transparent"
        android:cacheColorHint="#00000000" />
</LinearLayout>

Answer 1

I don’t think its possible for you to have three listviews with same id @id/android:list for a single ListActivity. And that should be the reason exactly.

If you need to use 3 ListViews then I would suggest you to extend Activity and use Custom Adapters. Since you use same ids it raises the conflict.

But still from my experience having multiple ListView in a same screen is not a good way to design UI.