动态手势识别--手势采集与手势匹配界面（四）

MainActivity：

public class MainActivity extends ActionBarActivity implementsSensorEventListener, OnCheckedChangeListener, OnTouchListener ,OnClickListener {List<sensordata> model=new ArrayList<sensordata>();List<sensordata> sensorDatas;private TextView gyroView, accView;private Switch s;private SensorManager sManager;private Sensor gyroSensor, accSensor;boolean switchIsChecked;private int SENSOR_RATE_MIDDLE = 10000;// 采样频率：100HZList<float> alist;// 存放加速度List<float> glist;// 存放角速度List<long> acctime;List<long> gyrotime;List<float> newglist = new ArrayList<float>();// 存放修改过的角速度List<List<sensordata>> sampleCollection=new ArrayList<List<sensordata>>();//存放输入的样本 不能没有new啊，不然取一次就报错List<sensordata> initialsample=new ArrayList<sensordata>();private OperateDatabase operateDatabase;private SharedPreferences sampleCollectionSizesp;private MyTask mTask;private static final String TAG = "ASYNC_TASK"; @Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);// textView组件用于显示角速度信息gyroView = (TextView) findViewById(R.id.gyroView);accView = (TextView) findViewById(R.id.accView);s = (Switch) findViewById(R.id.switch1);s.setOnCheckedChangeListener(this);// 给switch按钮设置监听器Button longButton = (Button) findViewById(R.id.longButton);longButton.setOnTouchListener(this);// 给长按按钮设置监听器Button computeButton = (Button) findViewById(R.id.computeButton);computeButton.setOnClickListener(this);Button enterButton = (Button)findViewById(R.id.enterButton);enterButton.setOnClickListener(this);//数据库操作operateDatabase=new OperateDatabase(MainActivity.this);//存入SharedPreferencessampleCollectionSizesp = MainActivity.this.getSharedPreferences("data",Context.MODE_PRIVATE);// 获取系统的传感器管理服务sManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);gyroSensor = sManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE);accSensor = sManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);}@Override// switch按钮被点击时，该方法会被执行 1）被点击的空间 2）被点击控件的状态public void onCheckedChanged(CompoundButton button, boolean isChecked) {switchIsChecked = isChecked;}@Overrideprotected void onResume() {super.onResume();}@Overrideprotected void onStop() {// 解除监听器注册sManager.unregisterListener(this);// this指的是sensorEventListener对象super.onStop();}@Override// 当传感器值改变时回调该方法public void onSensorChanged(SensorEvent event) {if (event.sensor.getType() == Sensor.TYPE_GYROSCOPE) {float[] args = event.values;glist.add(event.values);// glist中存角速度！！问题！！：共执行五次手势，每次都会把数据add到glist和alist中！gyrotime.add(System.nanoTime());//currentTimeMillis()把每次距离1970年1月1日0点0分0秒的毫秒数加入gyrotime的listStringBuffer gsb = new StringBuffer();gsb.append("x轴角速度:" + args[0] + "\n");gsb.append("y轴角速度:" + args[1] + "\n");gsb.append("z轴角速度:" + args[2] + "\n");gyroView.setText(gsb);}else if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {float[] args = event.values;alist.add(event.values);// alist中存加速度acctime.add(System.nanoTime());StringBuffer asb = new StringBuffer();asb.append("x轴加速度:" + args[0] + "\n");asb.append("y轴加速度:" + args[1] + "\n");asb.append("z轴加速度:" + args[2] + "\n");accView.setText(asb);//System.out.println(alist.toString());// 输出glist}}@Override// 当传感器精度发生改变时回调该方法public void onAccuracyChanged(Sensor sensor, int accuracy) {}@Overridepublic boolean onTouch(View view, MotionEvent event) {// TODO Auto-generated method stubif (event.getAction() == MotionEvent.ACTION_DOWN) {if (switchIsChecked) {alist = new ArrayList<float>();// 存放加速度glist = new ArrayList<float>();// 存放角速度acctime = new ArrayList<long>();gyrotime = new ArrayList<long>();sManager.registerListener(this, gyroSensor, SENSOR_RATE_MIDDLE);// this指的是sensorEventListener对象！！！！sManager.registerListener(this, accSensor, SENSOR_RATE_MIDDLE);// SENSOR_RATE_MIDDLE定义为80HZ}} else if (event.getAction() == MotionEvent.ACTION_UP) {sManager.unregisterListener(this);DTW dtw=new DTW();newglist=dtw.linearInsert(acctime,gyrotime,alist,glist);//new一下sensorDatas 每次置空sensorDatas = new ArrayList<sensordata>();for (int i = 0; i < newglist.size(); i++) {//删了 newSensorData sensorData = new SensorData(alist.get(i)[0],alist.get(i)[1], alist.get(i)[2], newglist.get(i)[0],newglist.get(i)[1], newglist.get(i)[2]);sensorDatas.add(sensorData);}//把采样结果加入到list中sampleCollection.add(sensorDatas);}return true;}@Overridepublic void onClick(View v){//开始计算模型 == computeButtonswitch(v.getId()){case R.id.computeButton://把sampleCollectionsize写入spEditor editor = sampleCollectionSizesp.edit();editor.putInt("size", sampleCollection.size());editor.commit();System.out.println("sampleCollection's length: " +sampleCollection.size());//到这可以运行 不会发生ANR，一写sampleCollection就ANR mTask = new MyTask(); mTask.execute();//把sampleCollection写入数据库 break;case R.id.enterButton:Intent intent=new Intent(MainActivity.this,MatchingActivity.class); startActivity(intent); break;}} private class MyTask extends AsyncTask<string integer="" string="">{ @Override protected void onPreExecute() { Log.i(TAG, "onPreExecute() called"); } @Overrideprotected String doInBackground(String... arg0) { Log.i(TAG, "doInBackground(Params... params) called"); try { operateDatabase.addsampleCollection(sampleCollection); //输出sampleCollection的长度，logcat里说是0，为啥啊！！！ ComputeModel cMode=new ComputeModel(); initialsample=cMode.selectinitialsample(sampleCollection); //有问题 ，一调就返回home界面！！ 妈的 这为啥是0了！ //调一下压缩扩张方法 for(int i=0;i<5;i++){ if(sampleCollection.get(i).size()!=initialsample.size()){//与初始模板长度比较 cMode.expansionORcompression(sampleCollection.get(i),initialsample); } } model=cMode.avgSample(sampleCollection,initialsample); //此sampleCollection是扩张压缩过后的！！ 再调一下求平均值方法，计算出模板 //把model写入文件 //这时的sampleCollection不用读文件里的 operateDatabase.addModel(model); }catch (Exception e) { Log.e(TAG, e.getMessage()); }// TODO Auto-generated method stubreturn null;} @Override protected void onPostExecute(String result) { super.onPostExecute(result); Toast.makeText(MainActivity.this, "Compute Over", Toast.LENGTH_SHORT).show(); } }}

 

MatchingActivity：

public class MatchingActivity extends ActionBarActivity implementsSensorEventListener, OnCheckedChangeListener, OnTouchListener,OnClickListener {private TextView gyroView, accView;private Switch s;private SensorManager sManager;private Sensor gyroSensor, accSensor;public List<sensordata> sensorDatas;boolean switchIsChecked;private int SENSOR_RATE_MIDDLE = 10000;// 采样频率：100HZList<float> alist;// 存放加速度List<float> glist;// 存放角速度List<long> acctime;List<long> gyrotime;float n;List<float> newglist = new ArrayList<float>();// 存放修改过的角速度private OperateDatabase operateDatabase;private SharedPreferences sampleCollectionSizesp;private MyTask mTask;private static final String TAG = "ASYNC_TASK";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.matching);// textView组件用于显示角速度信息gyroView = (TextView) findViewById(R.id.gyroView);accView = (TextView) findViewById(R.id.accView);s = (Switch) findViewById(R.id.switch1);s.setOnCheckedChangeListener(this);// 给switch按钮设置监听器Button longButton = (Button) findViewById(R.id.longButton);longButton.setOnTouchListener(this);// 给长按按钮设置监听器Button matchingButton = (Button) findViewById(R.id.matchingButton);matchingButton.setOnClickListener(this);sampleCollectionSizesp = MatchingActivity.this.getSharedPreferences("data",Context.MODE_PRIVATE);// 获取系统的传感器管理服务sManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);gyroSensor = sManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE);accSensor = sManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);//数据库操作operateDatabase=new OperateDatabase(MatchingActivity.this);}@Override// switch按钮被点击时，该方法会被执行 1）被点击的空间 2）被点击控件的状态public void onCheckedChanged(CompoundButton button, boolean isChecked) {switchIsChecked = isChecked;}@Overrideprotected void onResume() {super.onResume();}@Overrideprotected void onStop() {// 解除监听器注册sManager.unregisterListener(this);// 需要两次吗？？？？？？不用！！！！！！this指的是什么？指的是sensorEventListener对象！！！！不是两个传感器！super.onStop();}@Override// 当传感器值改变时回调该方法public void onSensorChanged(SensorEvent event) {if (event.sensor.getType() == Sensor.TYPE_GYROSCOPE) {float[] args = event.values;glist.add(event.values);// glist中存角速度gyrotime.add(System.nanoTime());StringBuffer gsb = new StringBuffer();gsb.append("x轴角速度:" + args[0] + "\n");gsb.append("y轴角速度:" + args[1] + "\n");gsb.append("z轴角速度:" + args[2] + "\n");gyroView.setText(gsb);}else if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {float[] args = event.values;alist.add(event.values);// alist中存加速度acctime.add(System.nanoTime());StringBuffer asb = new StringBuffer();asb.append("x轴加速度:" + args[0] + "\n");asb.append("y轴加速度:" + args[1] + "\n");asb.append("z轴加速度:" + args[2] + "\n");accView.setText(asb);}}@Override// 当传感器精度发生改变时回调该方法public void onAccuracyChanged(Sensor sensor, int accuracy) {}@Overridepublic boolean onTouch(View view, MotionEvent event) {// TODO Auto-generated method stubif (event.getAction() == MotionEvent.ACTION_DOWN) {if (switchIsChecked) {alist = new ArrayList<float>();// 存放加速度glist = new ArrayList<float>();// 存放角速度acctime = new ArrayList<long>();gyrotime = new ArrayList<long>();sManager.registerListener(this, gyroSensor, SENSOR_RATE_MIDDLE);// this指的是sensorEventListener对象！！！！sManager.registerListener(this, accSensor, SENSOR_RATE_MIDDLE);// SENSOR_RATE_MIDDLE定义为80HZ}} else if (event.getAction() == MotionEvent.ACTION_UP) {sManager.unregisterListener(this);DTW dtw=new DTW();newglist=dtw.linearInsert(acctime,gyrotime,alist,glist);//alist+newglist//改2!!!!!!!new一下sensorDatas 每次置空sensorDatas = new ArrayList<sensordata>();for (int i = 0; i < newglist.size(); i++) {SensorData sensorData = new SensorData(alist.get(i)[0],alist.get(i)[1], alist.get(i)[2], newglist.get(i)[0],newglist.get(i)[1], newglist.get(i)[2]);sensorDatas.add(sensorData);}}return true;}@Overridepublic void onClick(View v){//开始匹配模版 == matchingButtonmTask = new MyTask(); mTask.execute();} private class MyTask extends AsyncTask<string integer="" string="">{ boolean isSucceed = false; @Override protected void onPreExecute() { Log.i(TAG, "onPreExecute() called"); } @Overrideprotected String doInBackground(String... arg0) { Log.i(TAG, "doInBackground(Params... params) called"); try { int sampleCollectionSize = sampleCollectionSizesp.getInt("size",0); List<sensordata> model=operateDatabase.getModel(); System.out.println("model size=initial sample size?: "+model.size());//证明model从数据库获取的是对的 //一开始的sampleCollection，没压缩扩张过的 List<List<sensordata>> sampleCollection=operateDatabase.getSampleCollection(sampleCollectionSize); DTW dtw=new DTW(); //把n和threshold显示一下 进行比较 看看Q应该取什么值？ 或者哦 把threshold显示一下 来了Q是多少 他的范围在[1.3，3.0]之间 n=dtw.getDistance(model, sensorDatas);//model为计算的模板 float q=1.9875f;//q待定！！！ 3太大了 1号手势认证输二号手势总能认证成功 //2.5还可以----区间可能是[1.3，3.0] float threshold=q*((dtw.getDistance(model, sampleCollection.get(0)) +dtw.getDistance(model, sampleCollection.get(1)) +dtw.getDistance(model, sampleCollection.get(2)) +dtw.getDistance(model, sampleCollection.get(3)) +dtw.getDistance(model, sampleCollection.get(4)))/5); //显示一下threshold System.out.println("threshold : "+threshold); System.out.println("n : "+n); if(n<0){ //认证失败 isSucceed = false; } else{ if(n<threshold){ //认证成功 isSucceed = true; } else isSucceed = false; } }catch (Exception e) { Log.e(TAG, e.getMessage()); }// TODO Auto-generated method stubreturn null;} @Override protected void onPostExecute(String result) { super.onPostExecute(result); if(isSucceed){ Toast.makeText(getApplicationContext(), "认证成功", Toast.LENGTH_SHORT).show(); System.out.println("认证成功"); }else{ Toast.makeText(getApplicationContext(), "认证失败", Toast.LENGTH_SHORT).show(); System.out.println("认证失败"); } } }}