Android On Touch -

i have been trying make program draw circles touch screen no luck, can please tell me how can this? or tutorial shows me how... keep getting errors in code

import android.content.context; import android.content.intent; import android.graphics.canvas; import android.graphics.color; import android.graphics.paint; import android.graphics.path; import android.text.format.time; import android.util.attributeset; import android.view.motionevent; import android.view.view; import java.lang.math;  public class gameview extends view{          private final float x;         private final float y;         private final int r;         private final paint mpaint = new paint(paint.anti_alias_flag);          public gameview(context context, float x, float y, int r) {             super(context);             setfocusable(true);             mpaint.setcolor(0xffff0000);             this.x = x;             this.y = y;             this.r = r;         }          @override         protected void ondraw(canvas canvas) {             super.ondraw(canvas);             canvas.drawcircle(x, y, r, mpaint);         }    } 

gameactivity.java

import android.app.activity;  import android.content.context; import android.os.bundle;    import android.os.handler; import android.os.message; import android.view.display; import android.view.motionevent; import android.view.view; import android.view.windowmanager; import android.widget.framelayout;  public class gameactivity extends activity {         /** called when activity first created. */      @override       public void oncreate(bundle savedinstancestate) {           super.oncreate(savedinstancestate);         setcontentview(r.layout.main);          framelayout main = (framelayout) findviewbyid(r.id.my_view);           main.setontouchlistener(new view.ontouchlistener() {             public boolean ontouch(final view v, motionevent e) {                   final float x = e.getx();                  final float y = e.gety();                   final handler handler = new handler()                    {                                       public void handlemessage(message msg) {                          }                                      };                               thread graphicthread = new thread()                            {                                                 public void run() {                                                            try {                                  //do drop                                    framelayout flview = (framelayout) v;                                  gameview gm = new gameview(getparent(), x,y,25);                                   flview.addview(gm);                                        thread.sleep(1000);                                       handler.sendmessage(handler.obtainmessage());                                 }                              catch (interruptedexception e) {                                 // todo auto-generated catch block                                 e.printstacktrace();                             }                          }                                              };                                          boolean isrunning=true;                         graphicthread.start();                            return true;                          }                      });          }     } 

you shouldn't using getparent() in activity if it's not child activity.

use instead:

gameview gm = new gameview(this, x, y, 25);