当关闭“最新应用"中的应用时,多任务下载器的后台服务停止. [英] background service for multitask downloader stops when close app from "recent apps"
问题描述
我有一个下载器应用程序项目,并且正在使用Service类来管理下载任务并显示如下通知:问题:当我通过滑动从最近的应用程序中关闭应用程序时,该服务将停止.我不能使用 startForeground
进行通知,因为我在一项服务中有多个通知.而且我喜欢 notify.setAutoCancel(true)
可以正常工作.这是AndroidManifest.xml代码:
I have a downloader app project and I'm using a Service class for managing download tasks and showing notifications like this :
the problem: when I close app from recent apps by swiping , the Service will be stop. I cant use startForeground
for notifications , because I have multiple notifications in one service . and I like notify.setAutoCancel(true)
works fine.
here is AndroidManifest.xml code :
<service android:name=".Downloader" android:exported="false" android:enabled="true"
android:stopWithTask="false" />
这是启动服务:
public static void intentDownload(Context context , FileInfo info) {
Intent intent = new Intent(context, Downloader.class);
intent.setAction(ACTION_DOWNLOAD);
intent.putExtra(EXTRA_TAG, info.Tag);
intent.putExtra(EXTRA_APP_INFO, info);
context.startService(intent);
}
这是 onStartCommand
:
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent != null) {
String action = intent.getAction();
FileInfo fInfo;
String tag = intent.getStringExtra(EXTRA_TAG);
switch (action) {
case ACTION_DOWNLOAD:
fInfo = (FileInfo) intent.getSerializableExtra(EXTRA_APP_INFO);
download(fInfo);
break;
case ACTION_PAUSE:
fInfo = (FileInfo) intent.getSerializableExtra(EXTRA_APP_INFO);
pause(fInfo);
break;
case ACTION_CANCEL:
cancel(tag);
break;
case ACTION_PAUSE_ALL:
pauseAll();
break;
case ACTION_CANCEL_ALL:
cancelAll();
break;
}
}
return Service.START_STICKY;
}
我该如何解决?!
推荐答案
当您返回 START_STICKY
时,此服务将在您关闭/杀死该应用程序时停止,因为在该应用程序关闭了所有引用/值之后对于所有Intent以及变量,它将变为 null
,因此 STICKY
服务将无法获得Intent值.
As you are returning START_STICKY
this service will stop whenever you close/kill the app because after the App closed all the Reference/Value will become null
for all Intent as well as variables and so STICKY
service will not able to get Intent value.
要在应用终止后继续服务,请使用返回START_REDELIVER_INTENT
To continue service after app kills use return START_REDELIVER_INTENT
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return START_REDELIVER_INTENT;
}
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