/**
* ...
*
* @author vlinux
*
*/
public class MultiTouchTestActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
(savedInstanceState);
// setContentView();
View view = new MultiTouchView(this);
setContentView(view);
}
class MultiTouchView extends View {
private float x1;
private float y1;
private float x2;
private float y2;
public MultiTouchView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
float size = ();
int szi = (int) size;
int dxi = szi >> 12;
int dyit = ((1 << 12) - 1);
int dyi = szi & dyit;
DisplayMetrics metrics = getResources().getDisplayMetrics();
float dx = * dxi / (float) dyit;
float dy = * dyi / (float) dyit;
x1 = ();
y1 = ();
x2 = x1 + dx;
y2 = y1 + dy;
invalidate();
return true;
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
(canvas);
float r = (float) ((x1 - x2) * (x1 - x2) + (y1 - y2)
* (y1 - y2)) / 2;
r = 50 >= r ? 50 : r;
Paint paint = new Paint();
();
(x1, y1, r, paint);
}
}
}