android - Looping in onCreate method -


so i'm creating program randomly spawn circles on screen every 5 seconds. had working displaying 1 circle when tried loop in oncreate method draw multiple circles, got compiler errors , have no idea now, been stuck 30 minutes. here code , main error. appreciated.

public class randomcircles extends actionbaractivity {      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);          timer timer = new timer();         timer.scheduleatfixedrate(new timertask() {             public void run() {                 setcontentview(new myview(r.layout.activity_random_circles);             }         }, 0, 5 * 1000l);//5 seconds     }      @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.menu_random_circles, menu);         return true;     }      @override     public boolean onoptionsitemselected(menuitem item) {         // handle action bar item clicks here. action bar         // automatically handle clicks on home/up button, long         // specify parent activity in androidmanifest.xml.         int id = item.getitemid();          //noinspection simplifiableifstatement         if (id == r.id.action_settings) {             return true;         }          return super.onoptionsitemselected(item);     } }  class myview extends view {     public myview(context context) {         super(context);         // todo auto-generated constructor stub     }      @override     protected void ondraw(canvas canvas)     {         super.ondraw(canvas);         //800, 1162         random rand = new random();          double x = rand.nextint(getwidth());          if(getwidth() - x < 100)             x -= 100;         else if(getwidth() - x > getwidth() - 100)             x += 100;         double y = rand.nextint(getheight());          if(getheight() - y < 100)             y -= 100;         else if(getheight() - x > getheight() - 100)             y += 100;          int radius;         radius = 100;         paint paint = new paint();         paint.setstyle(paint.style.fill);         paint.setcolor(color.white);         canvas.drawpaint(paint);         // use color.parsecolor define html colors         paint.setcolor(color.parsecolor("#cd5c5c"));         canvas.drawcircle(x, y, radius, paint);     } }

enter image description here

your myview constructor seeks context parameter, passing r.layout.activity_random_circles auto-generated int value mapped layout xml file in res/layout. try passing randomcircles.this instead refers activity context


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