Detection of Gesture

To detect Gesture, you have to prepare your own gestures library. Refer to last post to create your gestures library using Gestures Builder, and copy to /res/raw.

package com.GestureMonitor;

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.Prediction;
import android.os.Bundle;
import android.widget.TextView;

public class GestureMonitorActivity extends Activity {

GestureLibrary gestureLibrary = null;
GestureOverlayView gestureOverlayView;
TextView gestureResult;

 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.main);
     gestureResult = (TextView)findViewById(R.id.gestureresult);
     gestureOverlayView = (GestureOverlayView)findViewById(R.id.gestures);
  
     gestureLibrary = GestureLibraries.fromRawResource(this, R.raw.gestures);
     gestureLibrary.load();
  
     gestureOverlayView.addOnGesturePerformedListener(gesturePerformedListener);
 }

 OnGesturePerformedListener gesturePerformedListener
 = new OnGesturePerformedListener(){

 @Override
 public void onGesturePerformed(GestureOverlayView view, Gesture gesture) {
  // TODO Auto-generated method stub
  ArrayList<Prediction> prediction = gestureLibrary.recognize(gesture);
  if(prediction.size() > 0){
   gestureResult.setText(prediction.get(0).name);
  }
 
 }};
}

<?xml version="1.0" encoding="utf-8"?>
<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="@string/hello"
 />
<TextView
 android:id="@+id/gestureresult"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 />
<android.gesture.GestureOverlayView
 android:id="@+id/gestures"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:gestureStrokeType="multiple"
 android:eventsInterceptionEnabled="true"/>
</LinearLayout>