ScrollView inside Another Scrollview in Android

Layout File 

<?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"
    android:orientation="vertical" >

    <ScrollView
        android:id="@+id/activity_main_parent_scroll"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@android:color/black"
        android:focusableInTouchMode="true" >

        <LinearLayout
            android:id="@+id/activity_main_linear"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >

            <ScrollView
                android:id="@+id/activity_main_child_scroll"
                android:layout_width="fill_parent"
                android:layout_height="@dimen/widthsize100"
                android:focusable="true"
                android:focusableInTouchMode="true" >

                <TextView
                    android:id="@+id/activity_main_activity_main_text_description"
                    style="@style/Textview" />
            </ScrollView>

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_3"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_4"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_5"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_6"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_7"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_8"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_9"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_10"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_11"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_12"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_13"
                style="@style/Textview"
                 />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_14"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_15"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_16"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_17"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_18"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_19"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_20"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_21"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_22"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_23"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_24"
                style="@style/Textview" />

            <TextView
                android:id="@+id/activity_main_activity_main_text_description_25"
                style="@style/Textview" />
        </LinearLayout>
    </ScrollView>

</RelativeLayout>

style.xml

<style name="Textview">
        <item  name="android:layout_width">fill_parent</item>
        <item name="android:layout_height">wrap_content</item>
        <item name="android:scrollbars">vertical</item>
        <item name="android:text">@string/text</item>
        <item name="android:textColor">@android:color/white</item>
        <item name="android:textSize">@dimen/textsize12</item>
        <item name="android:padding">@dimen/padding5</item>
        </style>

string.xml

    <string  name="text">sdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfhsdfdsfhsdjkfhsdkfhsdjkfhsdjkfhsdjfh</string>

dimen.xml

    <dimen name="textsize12">12dip</dimen>
    <dimen name="padding5">5dip</dimen>
    <dimen name="widthsize100">100dp</dimen>



MainActivity.java


import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ScrollView;

public class MainActivity extends Activity {
   
    ScrollView mScrollViewParent;
    ScrollView mScrollViewChild;
   
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mScrollViewParent=(ScrollView)findViewById(R.id.activity_main_parent_scroll);
        mScrollViewChild=(ScrollView)findViewById(R.id.activity_main_child_scroll);
       
        mScrollViewParent.setOnTouchListener(new View.OnTouchListener() {

            public boolean onTouch(View v, MotionEvent event) {
                Log.v("A","PARENT TOUCH");
//             findViewById(R.id.child_scroll).getParent().requestDisallowInterceptTouchEvent(false);
                mScrollViewParent.getParent().requestDisallowInterceptTouchEvent(false);
                return false;
            }
        });
        mScrollViewChild.setOnTouchListener(new View.OnTouchListener() {

            public boolean onTouch(View v, MotionEvent event)
            {
                Log.v("B","CHILD TOUCH");
               // Disallow the touch request for parent scroll on touch of child view
                v.getParent().requestDisallowInterceptTouchEvent(true);
                return false;
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}