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import java.util.List;
import android.gesture.Gesture;
import android.gesture.GestureLibraries;
import android.gesture.GestureLibrary;
import android.gesture.GestureOverlayView;
import android.gesture.GestureOverlayView.OnGesturePerformedListener;
import android.gesture.Prediction;
import android.util.AttributeSet;
public class SketchpadView extends GestureOverlayView implements OnGesturePerformedListener{
private static final double score_threshold = 3.0;
private final GestureLibrary gestureLib;
private onGestureRecognizedListener gestureRecognizer;
public SketchpadView (Context context, AttributeSet attrs){
super(context, attrs);
mGestureLibrary = GestureLibraries.fromRawResource(context, R.raw.gestures);
mGestureLibrary.load();
addOnGesturePerformedListener(this);
}
public void setOnGestureRecognizedListener(OnGestureRecognizedListener onGestureRecognizedListener) {
gestureRecognizer = onGestureRecognizedListener;
}
@Override
public void onGesturePerformed(GestureOverlayView view, Gesture gesture){
List<Prediction> predictions = gestureLib.recognize(gesture);
Prediction bestPrediction = null;
if(!predictions.isEmpty()){
bestPrediction = predictions.get(0);
}
if(gestureRecognizer != null && bestPrediction != null){
if(bestPrediction.score > score_threshold){
gestureRecognizer.gestureRecognized(bestPrediction.name);
}else{
clear(false);
}
}
}
}
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