android use a View from a XML layout to draw a canvas

[alexander_extreme]

So basically i want to use a xml layout, but i also want a canvas where i can have graphics performed. What i did was make a view in my xml layout as you can see below. Then in my application i made the view draw the canvas, but it is not working. I'm not sure if my method for solving this is completely wrong or what. So please just take a look at my code and tell me if you see a quick fix or if you have a better method. Thanks in advance I really appreciate it.\[code\]<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="fill_parent"androidrientation="vertical" ><Button android:id="@+id/bTest" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button" /><View android:id="@+id/vMain" android:layout_width="wrap_content" android:layout_height="wrap_content" /></LinearLayout>\[/code\]that is the xml layout\[code\]package sm.view.test;import android.app.Activity;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Paint.Align;import android.os.Bundle;import android.view.MotionEvent;import android.view.SurfaceHolder;import android.view.SurfaceView;import android.view.View;import android.view.View.OnTouchListener;import android.widget.Button;public class ViewActivity extends Activity implements OnTouchListener {/** Called when the activity is first created. */View v;Button b;boolean isRun =true;SurfaceHolder ourHolder;Thread ourThread;Canvas canvas;boolean isTure = true;TheSurface ourSurfaceView;@Overridepublic void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); b= (Button) findViewById(R.id.bTest); v = (View) findViewById(R.id.vMain); canvas = new Canvas(); ourSurfaceView = new TheSurface(this); ourSurfaceView.setOnTouchListener(this); v.draw(canvas); // v.setBackgroundColor(Color.BLUE);}protected void onPause() { // TODO Auto-generated method stub super.onPause(); ourSurfaceView.pause();}@Overrideprotected void onResume() { // TODO Auto-generated method stub super.onResume(); ourSurfaceView.resume();}public boolean onTouch(View arg0, MotionEvent arg1) { // TODO Auto-generated method stub return false;}public class TheSurface extends SurfaceView implements Runnable{ public TheSurface(Context context) { super(context); ourHolder= getHolder(); } public void resume(){ isRun= true; ourThread = new Thread(this); ourThread.start(); } public void pause(){ isRun = false; while(true){ try { ourThread.join(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } break; } ourThread= null; } public void run() { // TODO Auto-generated method stub Paint textPaint = new Paint(); textPaint.setColor(Color.WHITE); while(isTure){ if(!ourHolder.getSurface().isValid()) continue; //v.draw(canvas); canvas = ourHolder.lockCanvas(); canvas.drawLine(0, 0, canvas.getWidth(), canvas.getHeight(), textPaint); ourHolder.unlockCanvasAndPost(canvas); v.draw(canvas); } }}\[/code\]}