title: How to add Canvas in a specific LinearLayout?
body: <p>I am new comer to android but not to java. I have been designing UI in android through XML file, in that page i have 3 linear Layouts, in my top layout(first LinearLayout) i have kept some image and in the last layout i have kept some buttons,now i need to place a circle(of red color) in my center layout using canvas,i have written a separate class that extends View where in onDraw(Canvas canvas) ,i have drawn a circle.</p>
  
  <pre>
  package com.project.TargetTrackr3;
  
  import android.content.Context;
  import android.graphics.Canvas;
  import android.graphics.Color;
  import android.graphics.Paint;
  import android.view.View;
  
  public class DrawCanvasCircle extends View{
      public DrawCanvasCircle(Context mContext) {
          super(mContext);
      }
      public void onDraw(Canvas canvas) {
          Paint paint = new Paint();
          paint.setStyle(Paint.Style.FILL);
          canvas.drawColor(Color.WHITE);
          paint.setColor(Color.BLUE);
          canvas.drawCircle(20, 20, 15, paint);
      }
  
  }
  
  </pre>
  
  <p>Now i have to bring this canvas to the second layout,my main.xml is shown below</p>
  
  <pre>
  package com.project.TargetTrackr3;
  
  import android.app.Activity;
  import android.content.Context;
  import android.graphics.Canvas;
  import android.graphics.ColorFilter;
  import android.graphics.drawable.Drawable;
  import android.os.Bundle;
  import android.view.View;
  import android.widget.LinearLayout;
  public class TargetTrackr3Activity extends Activity {
      /** Called when the activity is first created. */
        protected LinearLayout ll;
        DrawCanvasCircle c;
        public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.main1); //layouting file 
          ll = (LinearLayout) findViewById(R.id.LinearLayout_DrawCircle);//This is where i have to bring the canvas
          c = new DrawCanvasCircle(this);
             ...................................
             ................................
  
  
  
      }
  }
  
  </pre>