View aus einem Thread aktualisieren funktioniert nicht.

1public class MeinProgramm extends GraphicsActivity implements OnGestureListener {
2
3 private SampleView mView;
4 private boolean i_is_invalidating = false;
5 private Handler SomeHandler = null;
6 private clsMainLoop mainLoop;
7//...
8protected void onCreate(Bundle icicle) {
9 super.onCreate(icicle);
10 mView = new SampleView(this);
11 setContentView(mView);
12
13 SomeHandler = new Handler() {
14 public void handleMessage(Message msg) {
15 mView.invalidate();
16
17 }
18 };
19
20
21 mainLoop = new clsMainLoop();
22 mainLoop.setHandler(SomeHandler);
23 mainLoop.run();
24 }
25//...
26
27private class SampleView extends View {
28 private Paint mPaint = new Paint();
29 private Path i_raster = new Path();
30
31
32 public SampleView(Context context) {
33 super(context);
34//...
35}
36//...
37
38@Override
39protected void onDraw(Canvas canvas) {
40 Paint paint = mPaint;
41 i_is_invalidating = true;
42//...
43 i_is_invalidating = false;
44}
45
46public class clsMainLoop extends Thread {
47 private int t_sleeptime = 250;
48 private boolean run = true;
49 private Handler t_handler = null;
50
51 public void setHandler(Handler hand) {
52 t_handler = hand;
53 }
54
55 public void run() {
56 try {
57 while(run){
58 Thread.sleep(t_sleeptime);
59 if (!i_is_invalidationg){
60 t_handler.sendEmptyMessage(0);
61 mView.invalidate();
62 }
63 }
64 }catch (Exception ex) {
65 }
66
67 }
68 }