Android custom ViewGroup implementation

CustomViewGroup.java

package com.example.igor.test;

import android.content.Context;
import android.graphics.Color;
import android.util.AttributeSet;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;


public class MyViewGroup extends ViewGroup {

    private View viewLeft;
    private View viewRight;

    private int width;
    private int height;

    private float initialPosX = -1;
    private float initialPosY = -1;


    public MyViewGroup(Context context) {
        this(context, null);
    }

    public MyViewGroup(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public MyViewGroup(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        viewLeft = new View(context);
        viewRight = new View(context);

        viewLeft.setBackgroundColor(Color.BLUE);
        viewRight.setBackgroundColor(Color.RED);

        addView(viewLeft);
        addView(viewRight);
    }

    @Override
    protected void onLayout(boolean bo, int l, int t, int r, int b) {

        viewLeft.layout(l, t, r, b);
        viewRight.layout(l, t, r, b);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);

        width = getWidth();//widthMeasureSpec;
        height = getHeight();

        LayoutParams params = viewLeft.getLayoutParams();
        params.height = heightMeasureSpec;
        params.width = widthMeasureSpec;
        viewLeft.setLayoutParams(params);

        params = viewRight.getLayoutParams();
        params.height = heightMeasureSpec;
        params.width = widthMeasureSpec;
        viewRight.setLayoutParams(params);

        viewLeft.measure(widthMeasureSpec, heightMeasureSpec);
        viewRight.measure(widthMeasureSpec, heightMeasureSpec);

        setMeasuredDimension(widthMeasureSpec, heightMeasureSpec);
    }

    boolean moving = false;

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        super.onTouchEvent(event);

        int e = event.getAction();

        if (e == MotionEvent.ACTION_DOWN) {
            System.out.println("action_down");
            this.initialPosX = event.getX();
            this.initialPosY = event.getY();

            return true;
        } else if (e == MotionEvent.ACTION_MOVE) {
//            System.out.println("action_move");
//            int offset = (int) (event.getX() - initialPos);
//            System.out.println(offset);
//            viewLeft.offsetLeftAndRight(offset);
//            viewRight.offsetLeftAndRight(-offset);
            int s = width/10;//ViewConfiguration.getTouchSlop();


            float dx = event.getX() - initialPosX;
            float dy = event.getY() - initialPosY;

            if (Math.abs(dx) >= s)
                moving = true;

            if (moving) {
                if (Math.abs(dx) > Math.abs(dy)) {
                    viewRight.setX(event.getX());
                }
            }
        }
        else if (e == MotionEvent.ACTION_UP) {
            moving = false;

            if (viewRight.getX() > width / 2)
                viewRight.setX(width);
            else
                viewRight.setX(0);
        }

        invalidate();
        requestLayout();

        return true;
    }
}