Adding GestureOverlayView to my SurfaceView class, how to add to view hierarchy?
- by Codejoy
I was informed in a later answer that I have to add the GestureOverlayView I create in code to my view hierarchy, and I am not 100% how to do that. Below is the original question for completeness.
I want my game to be able to recognize gestures. I have this nice SurfaceView class that I do an onDraw to draw my sprites, and I have a thread thats running it to call the onDraw etc .
This all works great.
I am trying to add the GestureOverlayView to this and it just isn't working. Finally hacked to where it doesn't crash but this is what i have
public class Panel extends SurfaceView implements SurfaceHolder.Callback, OnGesturePerformedListener
{
public Panel(Context context)
{
theContext=context;
mLibrary = GestureLibraries.fromRawResource(context, R.raw.myspells);
GestureOverlayView gestures = new GestureOverlayView(theContext);
gestures.setOrientation(gestures.ORIENTATION_VERTICAL);
gestures.setEventsInterceptionEnabled(true);
gestures.setGestureStrokeType(gestures.GESTURE_STROKE_TYPE_MULTIPLE);
gestures.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
//GestureOverlayView gestures = (GestureOverlayView) findViewById(R.id.gestures);
gestures.addOnGesturePerformedListener(this);
}
...
...
onDraw...
surfaceCreated(..);
...
...
public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {
ArrayList<Prediction> predictions = mLibrary.recognize(gesture);
// We want at least one prediction
if (predictions.size() > 0) {
Prediction prediction = predictions.get(0);
// We want at least some confidence in the result
if (prediction.score > 1.0) {
// Show the spell
Toast.makeText(theContext, prediction.name, Toast.LENGTH_SHORT).show();
}
}
}
}
The onGesturePerformed is never called. Their example has the GestureOverlay in the xml, I am not using that, my activity is simple:
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
Panel p = new Panel(this);
setContentView(p);
}
So I am at a bit of a loss of the missing piece of information here, it doesn't call the onGesturePerformed and the nice pretty yellow "you are drawing a gesture" never shows up.
