前台的服务就会被杀死，每次 [英] Foreground service gets killed every time

问题描述

当我开始我的服务，拉链很多，它总是被打死在后台文件后约8％，15-30秒。我怎样才能prevent这一点，让我的服务完成其任务？该服务未绑定到任何东西，可能这个问题？

//编辑：
我创建了一个前台的服务出来，但它仍然被终止。

 公共类PackingService延伸服务{
    串基本路径=+ Environment.getExternalStorageDirectory（）;
    字符串源=基本路径+/ data.zip;
    文件DIR =新的文件（基本路径+/数据）;
    @覆盖
    公共无效的onCreate（）{
        super.onCreate（）;
    }    @覆盖
    公众诠释onStartCommand（意向意图，诠释标志诠释startId）{
        NotificationCompat.Builder nBuilder =新NotificationCompat.Builder（本）
            .setSmallIcon（R.drawable.ic_launcher）
            .setContentTitle（正在压缩）
            .setContentText（...）;        startForeground（1337，nBuilder.build（））;        尝试{
            ZipFile的zip文件=新的ZipFile（源）;            Log.d（ZIP，preparing文件...）;
            ArrayList的filesToAdd =新的ArrayList（）;
            addDirectory（DIR，filesToAdd）;            ZipParameters参数=新ZipParameters（）;
            parameters.setCom pressionMethod（Zip4jConstants.COMP_DEFLATE）;
            parameters.setCom pressionLevel（Zip4jConstants.DEFLATE_LEVEL_ULTRA）;            zipFile.setRunInThread（真）;
            ProgressMonitor监视= zipFile.getProgressMonitor（）;            Log.d（ZIP，创建压缩......）;
            zipFile.createZipFile（filesToAdd，参数）;            INT百分比= -1;
            而（monitor.getState（）== ProgressMonitor.STATE_BUSY）{
                如果（百分之！= monitor.getPercentDone（））{
                    百分比= monitor.getPercentDone（）;
                    Log.d（进步，百分+％）;
                }
            }
        }赶上（抛出：Zip​​Exception E）{
            e.printStackTrace（）;
        }        stopForeground（真）;        返回super.onStartCommand（意向，旗帜，startId）;
    }    @覆盖
    公众的IBinder onBind（意向意图）{
        返回null;
    }    公共无效addDirectory（文件目录，ArrayList的filesToAdd）{
        如果（dir.exists（））{
            文件[] =文件dir.listFiles（）;
            的for（int i = 0; I＆LT; files.length ++我）{
                文件fil​​e =文件[I]
                如果（file.isDirectory（））{
                    addDirectory（文件，filesToAdd）;
                }其他{
                    filesToAdd.add（文件）;
                }
            }
        }
}
 

日志：

  dalvikvm：主题ID = 3：反应信号3
dalvikvm：写的堆栈跟踪到/data/anr/traces.txt
 

解决方案

我不使用的问题解决了服务，但 IntentService 。然后，我把整个的压缩和解code到 IntentService 并调用 onHandleIntent 方法> startForeground 之前。拉拉链完成后我称之为 stopForeground ，一切完美的作品。

When I start my service that zips a lot of files in background it always gets killed after about 8% and 15-30 seconds. How can I prevent that and let my service finish its task? The service is not bound to anything, might this be the problem?

//EDIT: I created a foreground service out of it but it still gets terminated.

public class PackingService extends Service {
    String basePath = ""+ Environment.getExternalStorageDirectory();
    String source = basePath+"/data.zip";
    File dir = new File(basePath+"/data");


    @Override
    public void onCreate() {
        super.onCreate();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        NotificationCompat.Builder nBuilder = new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.ic_launcher)
            .setContentTitle("Zipping")
            .setContentText("...");

        startForeground(1337, nBuilder.build());

        try{
            ZipFile zipFile = new ZipFile(source);

            Log.d("ZIP", "Preparing files...");
            ArrayList filesToAdd = new ArrayList();
            addDirectory(dir, filesToAdd);

            ZipParameters parameters = new ZipParameters();
            parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
            parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_ULTRA);

            zipFile.setRunInThread(true);
            ProgressMonitor monitor = zipFile.getProgressMonitor();

            Log.d("ZIP", "Creating zip...");
            zipFile.createZipFile(filesToAdd, parameters);

            int percent = -1;
            while(monitor.getState() == ProgressMonitor.STATE_BUSY){
                if(percent != monitor.getPercentDone()) {
                    percent = monitor.getPercentDone();
                    Log.d("Progress", percent + "%");
                }
            }
        } catch (ZipException e) {
            e.printStackTrace();
        }

        stopForeground(true);

        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    public void addDirectory (File dir, ArrayList filesToAdd) {
        if (dir.exists()) {
            File[] files = dir.listFiles();
            for (int i = 0; i < files.length; ++i) {
                File file = files[i];
                if (file.isDirectory()) {
                    addDirectory(file, filesToAdd);
                } else {
                    filesToAdd.add(file);
                }
            }
        }
}

Logs:

dalvikvm﹕ threadid=3: reacting to signal 3
dalvikvm﹕ Wrote stack traces to '/data/anr/traces.txt'

解决方案

I solved the problem by not using Service but IntentService. I then put the whole zipping code into the onHandleIntent method of the IntentService and call startForeground before it. After zipping finishes I call stopForeground and everything works perfectly.

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