我开发与显示在通知区域中的定时器（进度条和文本）的进步，服务的应用程序。我已提取下面一个简单的例子同样的问题。

I am developing an application with a service which show the progress of a timer in the notification area (with a progress bar and a text). I have extracted below a simpler example with the same problem.

本服务的code：

public class TNService extends Service {
    private NotificationManager nm;
    private Notification notification;
    private RemoteViews remoteView;

    @Override
    public void onCreate () {
        nm = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
        notification = new Notification(android.R.drawable.stat_sys_download, 
                "My notification", 
                System.currentTimeMillis());
        remoteView = new RemoteViews(this.getPackageName(),
                R.layout.notification);
        remoteView.setImageViewResource(R.id.icon, android.R.drawable.stat_sys_download);
        remoteView.setTextViewText(R.id.text, "");
        remoteView.setProgressBar(R.id.progress, 100, 0, false);
        notification.flags = Notification.FLAG_NO_CLEAR;
        notification.contentView = remoteView;
        notification.contentIntent = PendingIntent.getActivity(this, 0, new Intent(this,
                TNActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);

        Timer timer = new Timer ();
        timer.schedule(new TNTask(this), 0, 200);
    }

    @Override
    public IBinder onBind(Intent arg0) {
        return null;
    }

    public void updateNotification(int progress) {
        remoteView.setProgressBar(R.id.progress, 1000, progress, false);
        remoteView.setTextViewText(R.id.text, "Progress: " + progress);
        nm.notify(0, notification);
    }
}

一个TimerTask的code：

The code of the TimerTask:

public class TNTask extends TimerTask {
    private TNService service;
    private int progress;

    public TNTask(TNService s) {
        this.service = s;
        this.progress = 0;
    }

    @Override
    public void run() {
            progress = (progress + 1) % 1000;
        this.service.updateNotification (progress);
    }
}

现在的问题是巨大的内存使用情况。这里是logcat的输出：

The problem is the huge memory usage. Here is the logcat output:

D/dalvikvm(11985): GC_EXPLICIT freed 1258 objects / 84016 bytes in 1157ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 52216 objects / 1900968 bytes in 130ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 49465 objects / 1805248 bytes in 125ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 53106 objects / 1909992 bytes in 134ms
D/dalvikvm(12008): GC_EXPLICIT freed 1604 objects / 100944 bytes in 90ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 53011 objects / 1937160 bytes in 135ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 49806 objects / 1817992 bytes in 143ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 49016 objects / 1769536 bytes in 135ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 53509 objects / 1941064 bytes in 145ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 49895 objects / 1842312 bytes in 146ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 48728 objects / 1774496 bytes in 150ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 47557 objects / 1701976 bytes in 146ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 53540 objects / 1903808 bytes in 156ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 48997 objects / 1784048 bytes in 158ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 48326 objects / 1776864 bytes in 158ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 47566 objects / 1742488 bytes in 169ms
D/dalvikvm(   85): GC_FOR_MALLOC freed 47606 objects / 1703416 bytes in 170ms
D/dalvikvm(  162): GC_EXPLICIT freed 11238 objects / 641368 bytes in 1064ms

我觉得这是太多的内存，并经过一段时间的电话挂起，这样的输出：

I think it is too much memory and after a while the phone hangs with this output:

D/dalvikvm(   85): GC_FOR_MALLOC freed 0 objects / 0 bytes in 241ms
I/dalvikvm-heap(   85): Clamp target GC heap from 24.008MB to 24.000MB
I/dalvikvm-heap(   85): Grow heap (frag case) to 24.000MB for 52-byte allocation
I/dalvikvm-heap(   85): Clamp target GC heap from 26.008MB to 24.000MB
D/dalvikvm(   85): GC_FOR_MALLOC freed 0 objects / 0 bytes in 241ms
I/dalvikvm-heap(   85): Clamp target GC heap from 24.008MB to 24.000MB
I/dalvikvm-heap(   85): Grow heap (frag case) to 24.000MB for 24-byte allocation
I/dalvikvm-heap(   85): Clamp target GC heap from 26.008MB to 24.000MB
D/dalvikvm(   85): GC_FOR_MALLOC freed 0 objects / 0 bytes in 247ms
I/dalvikvm-heap(   85): Clamp target GC heap from 24.009MB to 24.000MB
I/dalvikvm-heap(   85): Grow heap (frag case) to 24.000MB for 28-byte allocation
I/dalvikvm-heap(   85): Clamp target GC heap from 26.009MB to 24.000MB
D/dalvikvm(   85): GC_FOR_MALLOC freed 0 objects / 0 bytes in 247ms
I/dalvikvm-heap(   85): Clamp target GC heap from 24.009MB to 24.000MB

任何人都知道我该怎么做没有使用这么多的内存？

Anyone knows how can I do it without using so many memory?

谢谢！

推荐答案

我偶然发现了同样的问题......这似乎是说，如果我不高速缓存在服务中远程视窗和通知，但重新打造他们从零开始，在更新例行公事这个问题就会消失。是的，我知道这是效率不高，但至少在手机没有10-15分钟后重新启动，因为它是内存不足。

I stumbled upon the same problem... It seems like that if I don't "cache" the RemoteView and Notification in the service, but re-create them from scratch in the "update" routine this problem disappears. Yes, I know it is not efficient, but at least the phone does not reboot after 10-15 minutes because it's out of memory.