我正在为Sony Smarthwatch 3开发应用程序。
它在来自蓝牙连接的其他设备的命令后记录音频和传感器值。 我试着更清楚。
Handler不会更新关联的TextView（也Button未正确设置）。处理程序附加到＆＃34; log＆＃34; TextView只是在执行结束时用最后发送的文本更新视图。public class MainActivity extends Activity implements OnRequestPermissionsResultCallback{
//GUI Elements
Chronometer chrono;
TextView log;
Button button;
MyHandlerThread update;
Handler myHandler;
boolean ready;
//Bluetooth Connection
BluetoothAdapter adapter;
BluetoothServerSocket serverSocket;
BluetoothDevice clientDevice;
BluetoothSocket clientSocket;
final UUID id = UUID.fromString("067e6162-3b6f-4ae2-a171-2470b63dff00");
InputStream in;
/*Sensors*/
SensorManager manager;
Sensor acc, gyr, mag;
SensorEventListener accEvent, gyrEvent, magEvent;
/*Microphone*/
MediaRecorder medRec;
/*File Data*/
File data;
FileWriter writer;
long time;
Thread writing;
String accValues="", gyrValues="", magValues="";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
@Override
public void onLayoutInflated(WatchViewStub stub) {
//GUI Elements
chrono = (Chronometer)findViewById(R.id.chrono);
log = (TextView) findViewById(R.id.logger);
button = (Button) findViewById(R.id.start);
myHandler= new MyHandler();
update = new MyHandlerThread(myHandler);
update.start();
ready=true;
writing=null;
//Listner
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//flag di stato
//boolean ready = (button.getText().equals("Start"));
audioInit(); //Audio Init, defined below
fileInit(); //File Init, defined below
if(ready){
try {
bluetoothInit(); //Bluetooth Init, defined below
} catch (Exception e) {/**/}
if (!adapter.isEnabled()){
update.setMessage("please, Turn Bluetooth On");
}
else{
try {
update.setMessage("Waiting Device...");
bluetoothConnect();
if(clientSocket!=null && in != null) {
update.setMessage("Connected:\n"+ clientDevice.getName());
}
while(ready){
int cmd = in.read(); //1 = start, 0 = stop
if(cmd == 1){
update.setMessage("Should be Ready");
time=SystemClock.elapsedRealtime();
update.setMessage("Recording...");
button.setText("Stop");
try {
if(writing==null)
writing = new Thread(new Runnable() {
@Override
public void run() {
while(ready){
try {
stopSensor(); //Defined Below
writer.flush(); //Clear Stream
writer.append((SystemClock.elapsedRealtime()-time)+";"); //Writing Record in CSV
writer.append(accValues+gyrValues+magValues+"\n");
sensorInit(); //Sensor Init, defined Below
wait(250);
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
sensorInit();
writing.start(); //Start Thread Reading/Writing for Sensor values
startRecord(); //Audio and Chrono Start
} catch (Exception e) {
e.printStackTrace();
}
}
else if (cmd==0){
//log.setText("Should be Stopped");
update.setMessage("Should be Stopped");
ready=false;
writing=null;
stopRecord();
update.setMessage("Stopped");
button.setText("Start");
}
}
} catch (Exception e) {
//log.setText("Bluetooth Problem");
update.setMessage("Bluetooth Problem");
}
}
}
}
}); //fine Listner
}
});
}
/*Handler for Log TextView*/
private class MyHandler extends Handler {
public MyHandler(){
super(Looper.getMainLooper());
}
public void handleMessage(Message msg) {
Bundle bundle = msg.getData();
if(bundle.containsKey("refresh")) {
String value = bundle.getString("refresh");
log.setText(value);
}
}
}
/*Bluetooth Init*/
void bluetoothInit(){
try {
adapter = BluetoothAdapter.getDefaultAdapter();
serverSocket = adapter.listenUsingRfcommWithServiceRecord("TennisRecord",id);
clientSocket=null;
clientDevice=null;
in=null;
} catch (Exception e) {
e.printStackTrace();
}
}
/*Bluetooth Connection*/
void bluetoothConnect() throws IOException {
clientSocket = serverSocket.accept();
clientDevice = clientSocket.getRemoteDevice();
in=clientSocket.getInputStream();
}
/*Audio Init*/
void audioInit(){
medRec = new MediaRecorder();
medRec.setAudioSource(MediaRecorder.AudioSource.MIC);
medRec.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
medRec.setOutputFile(Environment.getExternalStorageDirectory()+"/tennis_record.3gp");
medRec.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
medRec.setAudioSamplingRate(44100);
medRec.setAudioChannels(1);
}
/*File Init*/
void fileInit(){
try {
data=new File(Environment.getExternalStorageDirectory(),"/data.csv");
writer = new FileWriter(data);
} catch (IOException e) {
e.printStackTrace();
}
}
/*Sensors Init*/
void sensorInit(){
manager = (SensorManager) getSystemService(SENSOR_SERVICE);
acc = manager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
gyr = manager.getDefaultSensor(Sensor.TYPE_GYROSCOPE);
mag = manager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
accEvent = new SensorEventListener() {
@Override
public void onSensorChanged(SensorEvent event) {
accValues=event.values[0]+";"+event.values[1]+";"+event.values[2]+";";
log.setText((int) event.values[0]);
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
};
gyrEvent = new SensorEventListener() {
@Override
public void onSensorChanged(SensorEvent event) {
gyrValues=event.values[0]+";"+event.values[1]+";"+event.values[2]+";";
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
};
magEvent = new SensorEventListener() {
@Override
public void onSensorChanged(SensorEvent event) {
magValues=event.values[0]+";"+event.values[1]+";"+event.values[2]+";";
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
};
manager.registerListener(accEvent,acc,SensorManager.SENSOR_DELAY_NORMAL);
manager.registerListener(gyrEvent,gyr,SensorManager.SENSOR_DELAY_NORMAL);
manager.registerListener(magEvent,mag,SensorManager.SENSOR_DELAY_NORMAL);
}
/*Start Records*/
void startRecord() throws IOException {
/*Microfono*/
medRec.prepare();
medRec.start();
/*Cronometro*/
chrono.setBase(SystemClock.elapsedRealtime());
chrono.start();
}
/*Close Record*/
void stopRecord(){
/*Microfono*/
medRec.stop();
medRec.release();
medRec=null;
/*Cronometro*/
chrono.setBase(SystemClock.elapsedRealtime());
chrono.stop();
/*File*/
try {
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
/*Stop Senors*/
void stopSensor(){
/*Sensori*/
manager.unregisterListener(accEvent);
manager.unregisterListener(gyrEvent);
manager.unregisterListener(magEvent);
}
}
public class MyHandlerThread extends Thread {
private Handler handler;
Queue<String> text;
public MyHandlerThread(Handler handler) {
this.handler = handler;
text=new ArrayDeque<String>();
}
public void run() {
try {
while(true) {
if(!text.isEmpty()){
notifyMessage(text.remove());
Thread.sleep(1000);
}
}
}catch(Exception ex) {}
}
public void setMessage(String str){
text.add(str);
}
private void notifyMessage(String str) {
Message msg = handler.obtainMessage();
Bundle b = new Bundle();
b.putString("refresh", ""+str);
msg.setData(b);
handler.sendMessage(msg);
}
}
任何解决方案？