Mega Code Archive

 

Categories / Android / User Event

 

Load Gesture Libraries

package app.test; import java.util.ArrayList; import android.app.Activity; import android.gesture.Gesture; import android.gesture.GestureLibraries; import android.gesture.GestureLibrary; import android.gesture.GestureOverlayView; import android.gesture.GestureOverlayView.OnGesturePerformedListener; import android.gesture.GestureStore; import android.gesture.Prediction; import android.os.Bundle; import android.util.Log; import android.widget.Toast; public class Test extends Activity implements OnGesturePerformedListener {     private static final String TAG = "Gesture Revealer";   GestureLibrary gestureLib = null;     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main); //        gestureLib = GestureLibraries.fromRawResource(this, R.raw.gestures_letters);         gestureLib = GestureLibraries.fromFile("/sdcard/gestures");         gestureLib.setOrientationStyle(GestureStore.ORIENTATION_INVARIANT);         gestureLib.setSequenceType(GestureStore.SEQUENCE_INVARIANT);         if (!gestureLib.load()) {             Toast.makeText(this, "Could not load /sdcard/gestures", Toast.LENGTH_SHORT).show();             finish();         }         Log.v(TAG, "  Orientation style: " + gestureLib.getOrientationStyle());         Log.v(TAG, "  Sequence type: " + gestureLib.getSequenceType());         for( String gestureName : gestureLib.getGestureEntries() ) {           Log.v(TAG, "For gesture " + gestureName);           int i = 1;             for( Gesture gesture : gestureLib.getGestures(gestureName) ) {               Log.v(TAG, "    " + i + ": ID: " + gesture.getID());               Log.v(TAG, "    " + i + ": Strokes count: " + gesture.getStrokesCount());               Log.v(TAG, "    " + i + ": Stroke length: " + gesture.getLength());               i++;             }         }         GestureOverlayView gestureView = (GestureOverlayView) findViewById(R.id.gestureOverlay);         gestureView.addOnGesturePerformedListener(this);         gestureView.setGestureStrokeType(GestureOverlayView.GESTURE_STROKE_TYPE_MULTIPLE);     }   public void onGesturePerformed(GestureOverlayView view, Gesture gesture) {       ArrayList<Prediction> predictions = gestureLib.recognize(gesture);       if (predictions.size() > 0) {           Prediction prediction = (Prediction) predictions.get(0);           if (prediction.score > 1.0) {               Toast.makeText(this, prediction.name, Toast.LENGTH_SHORT).show();               for(int i=0;i<predictions.size();i++)                 Log.v(TAG, "prediction " + predictions.get(i).name +                     " - score = " + predictions.get(i).score);           }       }   } } //main.xml <?xml version="1.0" encoding="utf-8"?> <!-- This file is /res/layout/main.xml --> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"  android:layout_height="fill_parent"     > <TextView       android:layout_width="fill_parent"  android:layout_height="wrap_content"      android:text="Draw gestures and I'll guess what they are"     />      <android.gesture.GestureOverlayView     android:id="@+id/gestureOverlay"     android:layout_width="fill_parent"  android:layout_height="fill_parent"     android:gestureStrokeType="multiple"  android:fadeOffset="1000"     /> </LinearLayout>