我的 Android 服务并非一直运行。当我重新打开应用程序时它熄灭了。实施我的服务的正确方法是什么？

Question

我开发了一个 android 应用程序，其中我将广播接收器与 android 服务集成在一起。我的座右铭是只要设备连接到互联网，它就会执行一些操作。当我安装该应用程序时，它第一次运行良好。但是当我重新打开我的应用程序时，它无法正常工作。我应该在哪里声明我的服务，以便它运行无论应用程序打开或关闭或重新打开！无论发生什么，它都应该运行在 bg 中始终并在连接互联网时执行某些操作（正如我编程的那样）。我怎样才能做到这一点？下面是我的 android 服务代码

package processteam.ju;

import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Environment;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import java.util.logging.Handler;
import java.util.logging.LogRecord;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class AndroidService extends Service {
    Timer t;
    Timer t1;
    TimerTask task;
    TimerTask task1;
    int time = 20;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    startService(new Intent(this, AndroidService.class));
    return START_STICKY;
}

@Override
public void onDestroy() {

}

@Override
public IBinder onBind(Intent intent) {
    // TODO Auto-generated method stub
    return null;
}

@Override
public void onCreate() {

    super.onCreate();
    this.registerReceiver(this.mConnReceiver,new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
}
public void zipper(){
    {
        File uploadedimagedirectory = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/JU_Mobile_Files/Uploaded_Images/");
        File[] imagecontents = uploadedimagedirectory.listFiles();

        if (imagecontents == null) {
            Toast.makeText(getApplicationContext(), "uploadedimagedirectory null", Toast.LENGTH_LONG).show();
        } else if (imagecontents.length == 0) {
            Toast.makeText(getApplicationContext(), "uploadedimagedirectory empty", Toast.LENGTH_LONG).show();
        } else {

            Toast.makeText(getApplicationContext(), "uploadedimagedirectory 1st line", Toast.LENGTH_LONG).show();

            try {
                String inputFolderPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JU_Mobile_Files/Uploaded_Images/";
                String outZipPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JU_Mobile_Files/Images_Media_Zip/images.zip";

                Toast.makeText(this, "uploadimg2dp try block" + inputFolderPath + " ---" + outZipPath, Toast.LENGTH_LONG).show();
                FileOutputStream fos = new FileOutputStream(outZipPath);
                ZipOutputStream zos = new ZipOutputStream(fos);

                Toast.makeText(this, "What i get in uploadimg2dp" + inputFolderPath + "  <-->  " + outZipPath, Toast.LENGTH_LONG).show();
                File srcFile = new File(inputFolderPath);
                File[] files = srcFile.listFiles();

                Toast.makeText(this, "S.no " + srcFile.getName(), Toast.LENGTH_LONG).show();

                for (int i = 0; i < files.length; i++) {

                    byte[] buffer = new byte[1024];
                    FileInputStream fis = new FileInputStream(files[i]);
                    zos.putNextEntry(new ZipEntry(files[i].getName()));
                    int length;
                    while ((length = fis.read(buffer)) > 0) {
                        zos.write(buffer, 0, length);
                    }
                    zos.closeEntry();
                    fis.close();
                }
                zos.close();

            } catch (IOException ioe) {
                Log.e("", ioe.getMessage());
            }
        }

        File uploadedvideodirectory = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/JU_Mobile_Files/Uploaded_Videos/");
        File[] videocontents = uploadedvideodirectory.listFiles();

        if (videocontents == null) {
            Toast.makeText(getApplicationContext(), "uploadedvideodirectory null", Toast.LENGTH_LONG).show();
        } else if (videocontents.length == 0) {
            Toast.makeText(getApplicationContext(), "uploadedvideodirectory empty", Toast.LENGTH_LONG).show();
        } else {
            Toast.makeText(getApplicationContext(), "uploadedvideodirectory executed", Toast.LENGTH_LONG).show();


            try {
                String inputFolderPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JU_Mobile_Files/Uploaded_Videos";
                String outZipPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JU_Mobile_Files/Videos_Media_Zip/videos.zip";

                Toast.makeText(this, "exv" + inputFolderPath + " ---" + outZipPath, Toast.LENGTH_LONG).show();

                FileOutputStream fos = new FileOutputStream(outZipPath);

                ZipOutputStream zos = new ZipOutputStream(fos);
                Toast.makeText(this, "What i get in zip2 " + inputFolderPath + "  <-->  " + outZipPath, Toast.LENGTH_LONG).show();
                File srcFile = new File(inputFolderPath);

                File[] files = srcFile.listFiles();

                Log.d("", "Zip directory: " + srcFile.getName());

                Toast.makeText(this, "S.no " + srcFile.getName(), Toast.LENGTH_LONG).show();

                for (int i = 0; i < files.length; i++) {
                    Log.d("", "Adding file: " + files[i].getName());
                    byte[] buffer = new byte[1024];
                    FileInputStream fis = new FileInputStream(files[i]);
                    zos.putNextEntry(new ZipEntry(files[i].getName()));
                    int length;
                    Log.d("ranjithkpr","8148580586ly");
                    while ((length = fis.read(buffer)) > 0) {
                        zos.write(buffer, 0, length);
                    }
                    zos.closeEntry();
                    fis.close();
                    Log.d("ranjithkpr","8148580586hy");
                }
                zos.close();
                Log.d("ranjithkpr","8148580586yt");

            } catch (IOException ioe) {
                Log.e("", ioe.getMessage());
            }


        }
        Log.d("ranjithkpr","8148580586w");
        uploadmedia2dp();
        Log.d("ranjithkpr","8148580586y");

    }
}

public void startTimer() {

    Log.d("Download123456", "Starts123456");

    t = new Timer();

    task = new TimerTask() {
        @Override
        public void run() {

            DBUploaderDownloader mydb = new DBUploaderDownloader(getApplicationContext(), 0);

            //mydb.execute("1");
        }
    };
    SimpleDateFormat currenthour = new SimpleDateFormat("HH");
    SimpleDateFormat currentime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    SimpleDateFormat currentdate = new SimpleDateFormat("yyyy-MM-dd");
    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.HOUR, 1);
    int hours = Integer.parseInt(currenthour.format(cal.getTime()));
    String target = currentdate.format(new Date());

    for (int i = 0; i < 24; i = i + 1) {
        if (hours == i) {
            String ss = String.valueOf(i);
            if (i < 10) {
                ss = "0" + ss;
            }
            target = target + " " + ss + ":30:00";
            break;
        }
    }

    String currentdttime = currentime.format(new Date());
    Date targetedtime = null;
    try {
        targetedtime = currentime.parse(target);
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    long diff = targetedtime.getTime() - (new Date()).getTime();

    //t.scheduleAtFixedRate(task, 100, 20000);
    //t.scheduleAtFixedRate(task, diff, 3600000);
    t.scheduleAtFixedRate(task, 100, 1800000);
}
public void downloaddb() {


}
public void startUploadTimer() {

    Log.d("Upload123456", "Starts123456");
    t1 = new Timer();

    task1 = new TimerTask() {
        @Override
        public void run() {

          /*  DBUploaderDownloader mydb = new DBUploaderDownloader(getApplicationContext(), 0);
            mydb.execute("2");*/


            downloaddb();
        }


    };
    SimpleDateFormat currenthour = new SimpleDateFormat("HH");
    SimpleDateFormat currentime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    SimpleDateFormat currentdate = new SimpleDateFormat("yyyy-MM-dd");
    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.HOUR, 1);
    int hours = Integer.parseInt(currenthour.format(cal.getTime()));
    String target = currentdate.format(new Date());

    for (int i = 0; i < 24; i = i + 1) {
        if (hours == i) {
            String ss = String.valueOf(i);
            if (i < 10) {
                ss = "0" + ss;
            }
            target = target + " " + ss + ":00:00";
            break;
        }
    }

    String currentdttime = currentime.format(new Date());
    Date targetedtime = null;
    try {
        targetedtime = currentime.parse(target);
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    long diff = targetedtime.getTime() - (new Date()).getTime();
    Log.d("1234","diff="+String.valueOf(diff));
    //t1.scheduleAtFixedRate(task1, 100, 360000);
    //t1.scheduleAtFixedRate(task1, diff, 3600000);
    //t1.scheduleAtFixedRate(task1, 100, 1800000);
    t1.scheduleAtFixedRate(task1, 100, 1200000);
}
public void uploadmedia2dp(){

    Log.d("ranjithkpr","8148580586");
    /*Intent dialogIntent = new Intent(getBaseContext(), DropBoxActivity.class);
    dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    getApplication().startActivity(dialogIntent);*/

    Intent in=new Intent().setClass(AndroidService.this,DropBoxActivity.class);
    in.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    startActivity(in);
   // Toast.makeText(getApplicationContext(),"uploadmedia2dp executed",Toast.LENGTH_LONG).show();
    Log.d("ranjithkpr","814858058678");
}
private BroadcastReceiver mConnReceiver = new BroadcastReceiver() {

    public void onReceive(Context context, Intent intent) {

        try {
            boolean noConnectivity = intent.getBooleanExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, false);
            String reason = intent.getStringExtra(ConnectivityManager.EXTRA_REASON);
            boolean isFailover = intent.getBooleanExtra(ConnectivityManager.EXTRA_IS_FAILOVER, false);
            NetworkInfo currentNetworkInfo = (NetworkInfo) intent.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
            NetworkInfo otherNetworkInfo = (NetworkInfo) intent.getParcelableExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO);

            if (currentNetworkInfo.isConnected()) {
                if (t != null) {
                    t.cancel();
                }

                if (t1 != null) {
                    t1.cancel();
                }
                Toast.makeText(getApplicationContext(),"Connected",Toast.LENGTH_LONG).show();

                //startTimer();
                //startUploadTimer();
                //uploadvideo2dp();
                //uploadmedia2dp();

                //uploadimage2dp();

                zipper();

                RecursiveFileObserver recursiveFileObserver = new RecursiveFileObserver(Environment.getExternalStorageDirectory().getAbsolutePath() + "/JU_Mobile_Files/Uploaded_Videos/");
                recursiveFileObserver.startWatching();
                Log.d("ranjithkpr","8148580586ggy");

                RecursiveFileObserver recursiveFileObserver2 = new RecursiveFileObserver(Environment.getExternalStorageDirectory().getAbsolutePath() + "/JU_Mobile_Files/Uploaded_Images/");
                recursiveFileObserver2.startWatching();
                Log.d("ranjithkpr","8148580586yre");





            } else {
                if (t != null) {
                    t.cancel();
                }
                if (t1 != null) {
                    t1.cancel();
                }
                Toast.makeText(getApplicationContext(),"DisConnected",Toast.LENGTH_LONG).show();
            }
        } catch (Exception ex) {
        }
    }
};

}

并且我正像这样从 mainactivity（在 oncreate 中）开始我的服务，

 if (settings.getBoolean("createuploaderdownloadtimer11", true)) {

            startService(new Intent(this, AndroidService.class));
            settings.edit().putBoolean("createuploaderdownloadtimer11", false).commit();
        }

这就是我在清单中声明的方式，

 <service android:name=".AndroidService" >
        </service>

当我关闭最近的应用程序选项时，我的服务也会关闭！

它应该在网络连接时执行操作，但没有！

我该怎么办？有帮助吗？

提前致谢..

Answer 1

你应该这样写：

settings.edit().putBoolean("createuploaderdownloadtimer11", false).commit();

在 startService 调用之前：

settings.edit().putBoolean("createuploaderdownloadtimer11", false).commit();
startService(new Intent(this, AndroidService.class));

我的 Android 服务并非一直运行。当我重新打开应用程序时它熄灭了。实施我的服务的正确方法是什么？

My Android service is not running all the time. it goes off when i reopen the app. what is the correct way of implementing my service?

android

android-service

我的 Android 服务并非一直 运行。当我重新打开应用程序时它熄灭了。实施我的服务的正确方法是什么？

My Android service is not running all the time. it goes off when i reopen the app. what is the correct way of implementing my service?

android

android-service

我的 Android 服务并非一直运行。当我重新打开应用程序时它熄灭了。实施我的服务的正确方法是什么？