MainActivity

package com.example.android_03;

import java.util.ArrayList;

import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {


    private LinearLayout rootLayout;
  private ScrollerLinearLayout sideSlideLayout;

	private ListView listView;
	private final String[] menuTitles = {"メニュー1",
										 "メニュー2",
										 "メニュー3",
										 "メニュー4",
										 "メニュー5",
										 "メニュー6"};

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        init();
        setMenuButton();
        setListView();
        //setContent(0);
    }

    private void init(){
    	this.sideSlideLayout = (ScrollerLinearLayout) findViewById(R.id.menu_content_side_slide_layout);
    	this.rootLayout = (LinearLayout) findViewById(R.id.menu_content_root);
    }


    private void setMenuButton(){
    	Button menuButton = (Button) findViewById(R.id.main_tmp_button);
    	menuButton.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				sideSlideLayout.scroll();
			}
		});
    }


    private void setListView() {

    	ArrayList<String> items = new ArrayList<String>();
    	for (int i = 0; i < menuTitles.length; i++) {
    		items.add(menuTitles[i]);
		}

    	listView = (ListView) findViewById(R.id.menu_content_menulist);
    	//listView.setFadingEdgeLength(0);

    	MenuAdapter menuAdapter = new MenuAdapter(this, items, this);
		listView.setAdapter(menuAdapter);
		listView.setOnItemClickListener(new OnItemClickListener() {
			public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3)
			{
				// TODO Auto-generated method stub
				//setContent(arg2);
				sideSlideLayout.scroll();
			}
		});
	}

    //private void setContent(int position){
    //	rootLayout.removeAllViews();
    	//TextView tmpText = new TextView(this);
    	//tmpText.setText(menuTitles[position]);
    	//rootLayout.addView(tmpText);
    //}
}

MenuAdapter

package com.example.android_03;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class MenuAdapter extends BaseAdapter {
  private Context context;
  private ArrayList<String> items;
	private LayoutInflater inflater;


	public MenuAdapter(Context context, ArrayList<String> items, Activity act) {
		this.context = context;
		this.items = items;
		this.inflater = LayoutInflater.from(context);
	}


	public View getView(int position, View convertView, ViewGroup parent) {
		convertView = inflater.inflate(R.layout.item_menu, null);
		TextView title = (TextView) convertView.findViewById(R.id.menu_title);
		title.setText(getItem(position));
		return convertView;
	}

	public int getCount() {
		return items.size();
	}

	public String getItem(int position) {
		return items.get(position);
	}

	public long getItemId(int position) {
		return position;
	}
}

ScrollerLinearLayout

package com.example.android_03;

import android.app.Activity;
import android.content.Context;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.Display;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.Scroller;

public class ScrollerLinearLayout extends LinearLayout {

  private Context context;
	private Scroller scroller;
	private float density;
	private int scrollSizeWidth;


	public ScrollerLinearLayout(Context context) {
		super(context);
		this.context = context;
		init();
	}


	public ScrollerLinearLayout(Context context, AttributeSet attrs) {
		super(context, attrs);
		this.context = context;
		init();
	}


	private void init(){
		scroller = new Scroller(context);

		WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        Display disp = wm.getDefaultDisplay();
		int screenWidth = disp.getWidth();

        DisplayMetrics metrics = new DisplayMetrics();
		((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(metrics);
		this.density = metrics.density;

		scrollSizeWidth = (int)(screenWidth-(48*density));
	}

	public void scroll(){
		animationStart();
	}

	@Override
    public void computeScroll() {
        if(scroller.computeScrollOffset()){
            // Scrollerから移動位置を決定する
            scrollTo(scroller.getCurrX(),scroller.getCurrY());
            postInvalidate();
        }
    }

    private void animationStart(){
    	if (scroller.getCurrX() < 0)
    		scroller.startScroll(scroller.getCurrX(), scroller.getCurrY(), -1*scroller.getCurrX(), 0, 500);
    	else
			scroller.startScroll(scroller.getCurrX(), scroller.getCurrY(), -scrollSizeWidth, 0, 500);

        invalidate();
    }
}