public class activity2 extends Activity {

 View page1, page2, page3;
 Button btn1,btn2,btn3;
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.layout2);
     
     LinearLayout linear = (LinearLayout)findViewById(R.id.paint);
     MyView myview = new MyView(this);
     linear.addView(myview);
     
     
     btn1 = (Button)findViewById(R.id.memoBtn);
     btn2 = (Button)findViewById(R.id.diaryBtn);
     btn3 = (Button)findViewById(R.id.scheduleBtn);  
     
     btn1.setOnClickListener(mClickListener);
     btn2.setOnClickListener(mClickListener);
     btn3.setOnClickListener(mClickListener); 
     // TODO Auto-generated method stub
     page1 = findViewById(R.id.page1);
     page2 = findViewById(R.id.page2);
     page3 = findViewById(R.id.page3);
     
     page1.setVisibility(View.VISIBLE);
     page2.setVisibility(View.INVISIBLE);
     page3.setVisibility(View.INVISIBLE); 
 }
 Button.OnClickListener mClickListener = new Button.OnClickListener()
 {
  public void onClick(View v) {
      page1.setVisibility(View.INVISIBLE);
      page2.setVisibility(View.INVISIBLE);
      page3.setVisibility(View.INVISIBLE); 
   // TODO Auto-generated method stub
   switch(v.getId())
   {
   case R.id.memoBtn:
       page1.setVisibility(View.VISIBLE);
       break;
   case R.id.diaryBtn:
       page2.setVisibility(View.VISIBLE); 
       break;
   case R.id.scheduleBtn:
       page3.setVisibility(View.VISIBLE); 
       break;    
    
   }
   
  }
  
 };

}

     <FrameLayout 
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:padding="10dip"
        android:scrollbars="vertical">
       
      <LinearLayout
          android:id="@+id/page1"
          android:orientation="vertical"
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          >
         <TextView
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="메모내용"
             />
    <EditText
    android:id="@+id/memo_text"
    android:layout_width="fill_parent"
    android:layout_height="100dip"
    android:scrollbars="vertical"
    android:paddingLeft="10dip"
    android:minLines="3"
    android:maxLines="3"    
    android:textSize="20dip"
    android:lineSpacingExtra="5dip"
    android:background="@drawable/background"
    android:gravity="top"
   />
   <TextView
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="그림추가"
             />
   <RelativeLayout
       android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       >
        <LinearLayout
        android:id="@+id/paint"
        android:layout_width="200dip"
        android:layout_height="200dip"
        >
     </LinearLayout>
     <Button
         android:id="@+id/erase"
         android:layout_toRightOf="@id/paint"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="지우개"
         />
   </RelativeLayout>

        </LinearLayout>   

 package aa.aa;

import android.app.Activity;   
import android.os.Bundle;   
import java.util.ArrayList;   
import android.content.Context;   
import android.graphics.Bitmap;
import android.graphics.Canvas;   
import android.graphics.Color;   
import android.graphics.Paint;   
import android.view.Menu;
import android.view.MotionEvent;   
import android.view.View;   

class MyView extends View
{   
   
    Paint mpaint;
    Bitmap bitmap;
    Canvas canvas;
    Paint bitmapPaint;
    ArrayList<Vertex> arVertex;   
    public MyView(Context context)
    {   
        super(context);   
           
        arVertex = new ArrayList<Vertex>();   
           
        mpaint = new Paint();   
        mpaint.setColor(Color.BLACK);   
        mpaint.setStrokeWidth(5.0f);   
        mpaint.setAntiAlias(true); 
        bitmap = Bitmap.createBitmap(320,480,Bitmap.Config.ARGB_8888);
        canvas = new Canvas(bitmap);
        bitmapPaint = new Paint(Paint.DITHER_FLAG);
    }   
       
    @Override  
    protected void onDraw(Canvas canvas)
    {   
        // TODO Auto-generated method stub   
        canvas.drawColor(Color.WHITE);   
        canvas.drawBitmap(bitmap, 0,0, bitmapPaint); 
     
        for(int i=0; i<arVertex.size(); i++)
        {   
            if(arVertex.get(i).draw)
            {   
                canvas.drawLine(arVertex.get(i-1).x,    
                    arVertex.get(i-1).y,    
                    arVertex.get(i).x,    
                    arVertex.get(i).y,    
                    mpaint);   
            }   
        }   
    }   
  
    @Override  
    public boolean onTouchEvent(MotionEvent event)
    {   
        // TODO Auto-generated method stub   
        switch (event.getAction())
        {   
         case MotionEvent.ACTION_DOWN:   
             arVertex.add(new Vertex(event.getX(), event.getY(), false));   
             return true;   
             //break;   
         case MotionEvent.ACTION_MOVE:   
             arVertex.add(new Vertex(event.getX(), event.getY(), true));   
             invalidate();   
             return true;   
        }   
        return false;   
    }   
  
    public class Vertex
    {   
        float x;   
        float y;   
        boolean draw;   
           
        Vertex(float _x, float _y, boolean _d)
        {   
            this.x = _x;   
            this.y = _y;   
            this.draw = _d;   
        }   
    }
    
}  

MyView클래스(그림판)을 activity2 클래스에서 사용 하려고 합니다.

그런데 그림판에 지우개 기능도 넣을려고 하는데요..

이것을 넣을려면 myview 클래스를 건드려야 하나요?

또한 레이아웃에는 edittext도 있습니다.

메모장 처럼 할려고 하는데요

edittext에 쓰여진 글자와 그림판에 그려진 그림을 저장 해서 나중에 다시 불러 오려면 어떤 방식으로 저장을 해야 하는지 궁금하네요 ㅜㅜ