我有这项服务，可以将我的位置发送到服务器并从中获取一些数据。
package com.speed00.service;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.location.Location;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.support.v4.content.LocalBroadcastManager;
import android.text.TextUtils;
import android.widget.Toast;
import com.google.gson.Gson;
import com.speed00.R;
import com.speed00.constant.AppConstant;
import com.speed00.helper.FunctionHelper;
import com.speed00.model.achivment.StepHelper;
import com.speed00.model.ride.RideResultResponse;
import com.speed00.model.ride.UpdateLocationData;
import com.speed00.model.ride.UpdateLocationResponse;
import com.speed00.prefrences.MyPreferences;
import com.speed00.prefrences.MySharedPreference;
import com.speed00.retrofit.ApiUtils;
import com.speed00.stepdetucter.StepDetector;
import com.speed00.stepdetucter.StepListener;
import com.speed00.ui.activity.HomeActivity;
import com.speed00.utils.Logger;
import com.speed00.utils.MySensorEventListener;
import com.speed00.utils.NetworkConnection;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Timer;
import java.util.TimerTask;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class MyService extends Service implements StepListener, SensorEventListener {
// constant
// run on another Thread to avoid crash
private Handler mHandler = new Handler();
// timer handling
private Timer mTimer = null;
private Double locationRange = 1.0;
private String oldDegree;
private boolean isServiceRunning;
private int numSteps = 0;
private final int FINAL_STEP = 15;
private SensorManager sensorManager;
private Sensor accel;
String speed_received = "0";
private boolean pedoMetterHasStarted = false;
String pLatitude;
String pLongitude;
private SensorEventListener eListener;
private Sensor accelerometer, magFieldSensor;
private StepDetector simpleStepDetector;
@Override
public IBinder onBind(Intent intent) {
return null;
}
private BroadcastReceiver message = new BroadcastReceiver() {
@Override
public void onReceive(Context context, final Intent intent) {
// TODO Auto-generated method stub
new Handler().post(new Runnable() {
@Override
public void run() {
speed_received = intent.getStringExtra("current speed");
Logger.e("speed__recv" + speed_received);
if (speed_received != null) {
// setSpeedValue(speed_received);//this method is calling to set speed.
//This method is calling to validate Timer For Ride
if (speed_received.equalsIgnoreCase("0")) {
if (!pedoMetterHasStarted) {
numSteps = 0;
statPedoMeter();
}
}
//Calculating distance value
String latitude = MySharedPreference.getInstance(MyService.this).getLatitude();
String longitude = MySharedPreference.getInstance(MyService.this).getLongitude();
if (TextUtils.isEmpty(pLatitude)) {
pLatitude = latitude;
pLongitude = longitude;
} else {
/*
* if distance is more then 2 km then its calculatiog.
*
* */
Location pLocation = new Location("P");
pLocation.setLongitude(Double.parseDouble(pLatitude));
pLocation.setLongitude(Double.parseDouble(pLongitude));
Location nLocation = new Location("N");
nLocation.setLongitude(Double.parseDouble(latitude));
nLocation.setLongitude(Double.parseDouble(longitude));
Logger.e("distance----" + pLocation.distanceTo(nLocation));
if (pLocation.distanceTo(nLocation) >= 10) {
pLatitude = latitude;
pLongitude = longitude;
}
}
}
}
});
}
};
@Override
public void onCreate() {
sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
eListener = new MySensorEventListener(this, sensorManager);//for direction
accelerometer = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
magFieldSensor = sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
//callback sensor of ui
sensorManager.registerListener(eListener, accelerometer, SensorManager.SENSOR_DELAY_NORMAL);
sensorManager.registerListener(eListener, magFieldSensor, SensorManager.SENSOR_DELAY_NORMAL);
assert sensorManager != null;
accel = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
simpleStepDetector = new StepDetector();
simpleStepDetector.registerListener(this);
Toast.makeText(getApplicationContext(), "Service Started", Toast.LENGTH_SHORT).show();
isServiceRunning = true;
// Toast.makeText(getApplicationContext(), "service started", Toast.LENGTH_SHORT).show();
// cancel if already existed
if (mTimer != null) {
mTimer.cancel();
} else {
// recreate new
mTimer = new Timer();
}
// schedule task
// new Timer().scheduleAtFixedRate(new TimeDisplayTimerTask(), 100, NOTIFY_INTERVAL);
runLoop();
LocalBroadcastManager.getInstance(this).registerReceiver(message,
new IntentFilter("send"));
}
private void runLoop() {
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
updateDriverLocation();
if (isServiceRunning)
runLoop();
}
}, 1000);
}
/*
*
* This method is calling to update driver location
* */
private void updateDriverLocation() {
//Get all user details data.
String userId = MySharedPreference.getInstance(getApplicationContext()).getDriverId();
String latitudeData = MySharedPreference.getInstance(getApplicationContext()).getLatitude();
String longitudeData = MySharedPreference.getInstance(getApplicationContext()).getLongitude();
String speedData = MySharedPreference.getInstance(getApplicationContext()).getSpeedData();//how to roinf
Logger.e("SERVER " + latitudeData + " " + longitudeData);
Logger.e("SPEED " + speedData);
String directionValue = MySharedPreference.getInstance(getApplicationContext()).getDirectionValue();
String speeding = MySharedPreference.getInstance(getApplicationContext()).getSpeeding();
String language = MyPreferences.newInstance(getApplicationContext()).getLanguage();//send speeding data to bakend.
String directionText = MySharedPreference.getInstance(getApplicationContext()).getDirectionText();
long driveTime = FunctionHelper.getDifference(MySharedPreference.getInstance(getApplicationContext()).getStartTime());
String validateUTurn = validateUTurn();
// Logger.e("update_request--" + request);
ApiUtils.getAPIService().updateDriverLocation(validateUTurn, directionText, speeding, "" + driveTime, language, userId,
AppConstant.START_RIDE, speedData, directionValue, latitudeData, longitudeData).enqueue(new Callback<UpdateLocationResponse>() {
@Override
public void onResponse(Call<UpdateLocationResponse> call, Response<UpdateLocationResponse> response) {
if (response.isSuccessful()) {
UpdateLocationResponse updateLocationResponse = response.body();
if (updateLocationResponse.getErrorCode().equalsIgnoreCase(AppConstant.ERROR_CODE)) {
if (updateLocationResponse.getData().size() > 0) {
UpdateLocationData updateLocationData = updateLocationResponse.getData().get(0);
String eventData = FunctionHelper.validateData(updateLocationData);
broadCastEventData(eventData, updateLocationResponse.getErrorCode());
broadCastResponseData(updateLocationResponse);
}
}
}
}
@Override
public void onFailure(Call<UpdateLocationResponse> call, Throwable t) {
}
});
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return super.onStartCommand(intent, flags, startId);
}
/*
*
*This method is calling to validateUTurn.
*
*
* */
private String validateUTurn() {
String currentDegree = MySharedPreference.getInstance(this).getDirectionValue();
String uTurnStatus = "0";
if (TextUtils.isEmpty(oldDegree)) {
oldDegree = currentDegree;
uTurnStatus = "0";
return uTurnStatus;
} else {
if (oldDegree == "0.0") {
oldDegree = currentDegree;
}
if (Float.parseFloat(oldDegree) <= Float.parseFloat(currentDegree)) {
uTurnStatus = "1";
} else {
uTurnStatus = "0";
}
if (Float.parseFloat(oldDegree) == 360 || Float.parseFloat(oldDegree) > 270) {
if (Float.parseFloat(currentDegree) > 0 && Float.parseFloat(oldDegree) <= 90) {
uTurnStatus = "1";
}
}
oldDegree = currentDegree;
return uTurnStatus;
}
}
public synchronized void broadCastEventData(String eventData, String errorCode) {
Intent intent = new Intent("event_broad_cast");
intent.putExtra("data", eventData);
intent.putExtra("error", errorCode);
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}
/*
* This method is calling to broadcast event data
* */
/*
* This method is calling to broadcast event data
* */
public synchronized void broadCastResponseData(UpdateLocationResponse updateLocationData) {
Intent intent = new Intent("location_update");
Bundle args = new Bundle();
args.putSerializable("data", (Serializable) updateLocationData);
intent.putExtra("myvalue", args);
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}
@Override
public void onDestroy() {
super.onDestroy();
isServiceRunning = false;
LocalBroadcastManager.getInstance(this).unregisterReceiver(message);
// stopPedoMeter();
}
@Override
public void step(long timeNs) {
if (numSteps < 16)
Toast.makeText(this, "" + numSteps, Toast.LENGTH_SHORT).show();
saveStep();
if (calculateSteps()) {
stopRideAfter25step();
stopPedoMeter();//this method is calling to stop ResultActivity
} else if (Double.parseDouble(MySharedPreference.getInstance(this).getSpeedData()) > 10) {
MySharedPreference.getInstance(this).setSteps(new ArrayList<StepHelper>());
numSteps = 0;
} else {
Logger.e("stepsss " + numSteps);
numSteps = numSteps + 1;
}
}
private void stopRideAfter25step() {
MySharedPreference.getInstance(this).setSteps(new ArrayList<StepHelper>());
String speed = MySharedPreference.getInstance(this).getSpeedData();
String direction = MySharedPreference.getInstance(this).getDirectionValue();
String latitude = MySharedPreference.getInstance(this).getLatitude();
String longitude = MySharedPreference.getInstance(this).getLongitude();
String driverId = MySharedPreference.getInstance(this).getDriverId();
String language = MyPreferences.newInstance(this).getLanguage();
String speeding = MySharedPreference.getInstance(this).getSpeeding();
long driveTime = FunctionHelper.getDifference(MySharedPreference.getInstance(this).getStartTime());
//validate internet connection
if (NetworkConnection.isConnection(this)) {
stopRide("" + driveTime, language, speeding, driverId, latitude, longitude, AppConstant.STOP_RIDE, speed, direction);
} else {
Toast.makeText(this, getString(R.string.valid_please_check_network_connection), Toast.LENGTH_LONG).show();
}
}
public void stopRide(final String driveTime, final String languageKey, final String speedLimit, final String driverId, final String latitude, final String longitude, String rideStatus, final String speed, final String direction) {
String[] param = {driveTime, languageKey, speedLimit, driverId, speed, direction, latitude, longitude};
new stopLoc(this).execute(param);
}
@Override
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
simpleStepDetector.updateAccel(event.timestamp, event.values[0], event.values[1], event.values[2]);
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int i) {
}
private static class stopLoc extends AsyncTask<String[], Void, Void> {
Context mContext;
public stopLoc(Context mContext) {
this.mContext = mContext;
}
@Override
protected Void doInBackground(String[]... strings) {
Logger.e("stepsss stopingggg");
String driveTime = strings[0][0];
String languageKey = strings[0][1];
String speedLimit = strings[0][2];
String driverId = strings[0][3];
String speed = strings[0][4];
String direction = strings[0][5];
String latitude = strings[0][6];
String longitude = strings[0][7];
ApiUtils.getAPIService().stopTrip(driveTime, languageKey, speedLimit, driverId, AppConstant.STOP_RIDE, speed, direction, latitude, longitude).enqueue(new Callback<RideResultResponse>() {
@Override
public void onResponse(Call<RideResultResponse> call, Response<RideResultResponse> response) {
Logger.e("response----" + new Gson().toJson(response.body()));
if (response.isSuccessful()) {
String errorCode = response.body().getErrorCode();
if (errorCode.equalsIgnoreCase(AppConstant.ERROR_CODE)) {
tripSuccessData(response.body(), mContext);
} else {
Toast.makeText(mContext, "" + mContext.getString(R.string.text_some_erroroccurs), Toast.LENGTH_SHORT).show();
}
}
}
@Override
public void onFailure(Call<RideResultResponse> call, Throwable t) {
Toast.makeText(mContext, t.getMessage(), Toast.LENGTH_SHORT).show();
}
});
return null;
}
}
public static void tripSuccessData(Object data, Context context) {
RideResultResponse resultResponse = (RideResultResponse) data;
if (resultResponse.getErrorCode().equalsIgnoreCase(AppConstant.ERROR_CODE)) {
FunctionHelper.enableUserIntraction();
HomeActivity.bSpeedStatus = false;
Intent intent = new Intent("trip_ended");
intent.putExtra("trip_info", resultResponse.getData().get(0));
LocalBroadcastManager.getInstance(context).sendBroadcast(intent);
((MyService) context).stopSelf();
} else {
Toast.makeText(context, resultResponse.getErrorMsg(), Toast.LENGTH_SHORT).show();
}
}
private boolean calculateSteps() {
ArrayList<StepHelper> arrayList = MySharedPreference.getInstance(this).getSteps();
ArrayList<StepHelper> newList = new ArrayList<>();
for (int i = 0; i < arrayList.size(); i++) {
long seconds = FunctionHelper.getDifference(arrayList.get(i).getTime());
if ((int) seconds < 180) {
newList.add(arrayList.get(i));
}
}
if (numSteps - newList.get(0).getSteps() >= FINAL_STEP) {
return true;
} else {
MySharedPreference.getInstance(this).setSteps(newList);
return false;
}
}
private void saveStep() {
ArrayList<StepHelper> arrayList = MySharedPreference.getInstance(this).getSteps();
if (arrayList == null) {
arrayList = new ArrayList<>();
}
arrayList.add(new StepHelper(FunctionHelper.getCurrentDateWitTime(), numSteps));
MySharedPreference.getInstance(this).setSteps(arrayList);
}
private void statPedoMeter() {
// Toast.makeText(this, "start count", Toast.LENGTH_SHORT).show();
pedoMetterHasStarted = true;
MySharedPreference.getInstance(this).setStartPedoMeterTime(FunctionHelper.getCurrentDateWitTime());//store current time
if (sensorManager != null)
sensorManager.registerListener(this, accel, SensorManager.SENSOR_DELAY_NORMAL);
}
/*
* This method is calling to stop pedo meter
*
* */
private void stopPedoMeter() {
numSteps = 0;
pedoMetterHasStarted = false;
sensorManager.unregisterListener(this, accelerometer);
sensorManager.unregisterListener(this, accel);
sensorManager.unregisterListener(this, magFieldSensor);
sensorManager = null;
}
class TimeDisplayTimerTask extends TimerTask {
@Override
public void run() {
// run on another thread
mHandler.post(new Runnable() {
@Override
public void run() {
Logger.e("MyService --- " + "isRuning");
if (HomeActivity.bSpeedStatus) {
updateDriverLocation();
}
}
});
}
}
}
我的应用程序启动并仅使用170 MB，但启动此服务后，它变为220 MB，完成后仍为220，如果我再次打开它，则ram变为240，如果我完成它仍为240，如果我再次打开它变成260，依此类推，直到应用崩溃 服务有什么问题？ 我确保它已停止，但不知道为什么在完成此服务后不减少ram
答案 0 :(得分：0)
尝试这种方法，不要将stopSelf()放在静态方法中。相反，您应该再次调用startService并将操作添加到Intent。
这就是示例可操作服务的外观：
public class ExampleService
extends Service {
public static final String START_SERVICE_ACTION = "com.example.action.START_SERVICE";
public static final String STOP_SERVICE_ACTION = "com.example.action.STOP_SERVICE";
@Override
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
String intentAction = intent.getAction();
switch (intentAction) {
case START_SERVICE_ACTION:
//
break;
case STOP_SERVICE_ACTION:
stopSelf();
break;
}
}
@Override
public void onDestroy() {
super.onDestroy();
}
@Override
public IBinder onBind(Intent intent) {
// Used only in case if services are bound (Bound Services).
return null;
}
}
与Service在某处进行交互：
像这样开始：
Intent service = new Intent(context, ExampleService.class);
service.setAction(NotificationService.START_SERVICE_ACTION);
startService(service);
像这样停止它：
Intent service = new Intent(context, ExampleService.class);
service.setAction(NotificationService.STOP_SERVICE_ACTION);
startService(service);
START_SERVICE_ACTION，只需添加它即可更好地理解设计。