Child snippet of onClick parent triggers

Question

I use nested fragments, moving from one to another using code

ImageView search = (ImageView) root.findViewById(R.id.search);
    search.setOnClickListener(new OnClickListener(){
        @Override
        public void onClick(View arg0) {
            FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
            transaction.addToBackStack(null);
            transaction.replace(R.id.parent, ChildFragment.newInstance());
            transaction.commit();               
        }           
    });

However, sometimes it happens that from a child fragment I can still click on the elements of the parent fragment, even if they are invisible (covered by the child fragment). In particular, this happens when a child has a simple layout like

<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"  
    android:background="#FFF0D1"
    android:id="@+id/child">

...some stuff...    

</RelativeLayout>

but this will NOT happen when I use a nested layout

<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"  
    android:background="#FFF0D1"
    android:id="@+id/child">

<ScrollView
    android:id="@+id/scr"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_alignParentTop="true"
    android:padding="10dp">

<RelativeLayout 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" >

...same stuff...

</RelativeLayout>

</ScrollView>

</RelativeLayout>

Does anyone know why this is happening?

Answer 1

: / - . some, .

: - , :

    <RelativeLayout
    ...
    android:clickable="true"
    ...>    
    ...

onClickListener