在 Android 4.1 ~ 5.1.1 应用程序被终止时,前台服务会立即被终止
Foreground Service is getting killed immediately in Android 4.1 ~ 5.1.1 when app is killed
我有一个正在前台下载文件的服务
@Override
public int onStartCommand(Intent intent, int flags, int sid){
this.sid = sid;
PendingIntent mainIntent = PendingIntent.getActivity(this, 0, MyApplication.mainIntent, 0);
Notification notification = new NotificationCompat.Builder(VuclipPrime.getInstance())
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Downloading Video")
.setContentText("Initiating...")
.setContentIntent(mainIntent)
.setAutoCancel(false)
.setOngoing(true)
.build();
startForeground(mNotificationId, notification);
if (VideoDownloadManager.currentVideoDownloadTask != null) {
VideoDownloadManager.currentVideoDownloadTask.start();
} else {
stopSelf();
}
return START_NOT_STICKY;
}
当我滑动关闭应用程序时,服务也被停止了。
我尝试了 Whosebug 上的所有现有解决方案,但 none 有效。
我尝试了 YouTube 应用程序,但它并没有终止其服务。我该如何实现?谢谢
您正在使用 NOT_STICKY 参数启动服务。
你应该 return START_STICKY 在 onStartCommand()
@Override
public int onStartCommand(Intent intent, int flags, int sid){
this.sid = sid;
PendingIntent mainIntent = PendingIntent.getActivity(this, 0, VuclipPrime.mainIntent, 0);
Notification notification = new NotificationCompat.Builder(VuclipPrime.getInstance())
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Downloading Video")
.setContentText("Initiating...")
.setContentIntent(mainIntent)
.setAutoCancel(false)
.setOngoing(true)
.build();
startForeground(mNotificationId, notification);
if (VideoDownloadManager.currentVideoDownloadTask != null) {
VideoDownloadManager.currentVideoDownloadTask.start();
} else {
stopSelf();
}
return START_STICKY;
}
来自文档:
https://developer.android.com/reference/android/app/Service.html#START_STICKY
- START_STICKY:系统会尝试重新启动服务
它被杀了。
- START_NO_STICKY:系统不会关心是否
服务被杀死。
解决方案是在服务的 onTaskRemoved() 方法中启动虚拟 activity 以防止服务被终止。
启动后立即完成 DummyActivity。
检查以下代码:-
package com.your.application.services;
import android.app.Notification;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.os.Build;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
public class DownloadService extends Service {
int mNotificationId = 001;
Notification notification;
private int sid;
public DownloadService() {
}
@Override
public int onStartCommand(Intent intent, int flags, int sid) {
this.sid = sid;
PendingIntent mainIntent = PendingIntent.getActivity(this, 0, YourApplication.getInstance().downloadService.mainIntent, 0);
notification = new NotificationCompat.Builder(YourApplication.getInstance())
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Starting Service")
.setContentText("Initiating...")
.setContentIntent(mainIntent)
.setAutoCancel(true)
.setOngoing(true)
.build();
startForeground(mNotificationId, notification);
if (YourApplication.getInstance().downloadService.videoDownloader != null) {
YourApplication.getInstance().downloadService.startDonwloadThread(YourApplication.getInstance().downloadService.videoDownloader);
} else {
stopSelf();
}
return START_NOT_STICKY;
}
@Override
public void onDestroy() {
super.onDestroy();
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onTaskRemoved(Intent rootIntent) {
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP_MR1 && Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR2) {
Intent intent = new Intent(this, DummyActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
}
}
虚拟活动:-
public class DummyActivity extends Activity {
@Override
public void onCreate(Bundle bundle) {
super.onCreate(bundle);
finish();
}
}
DummyActivity 的 AndroidManifest 条目:-
<activity
android:name=".downloader.DummyActivity"
android:allowTaskReparenting="true"
android:alwaysRetainTaskState="false"
android:clearTaskOnLaunch="true"
android:enabled="true"
android:excludeFromRecents="true"
android:finishOnTaskLaunch="true"
android:noHistory="true"
android:stateNotNeeded="true"
android:theme="@android:style/Theme.NoDisplay" />
Android 如果在进程处于睡眠模式时未将其列为受保护的应用程序,则停止进程。转到设置->受保护的应用程序->Select 您的应用程序并将其启用为受保护的应用程序。
我有一个正在前台下载文件的服务
@Override
public int onStartCommand(Intent intent, int flags, int sid){
this.sid = sid;
PendingIntent mainIntent = PendingIntent.getActivity(this, 0, MyApplication.mainIntent, 0);
Notification notification = new NotificationCompat.Builder(VuclipPrime.getInstance())
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Downloading Video")
.setContentText("Initiating...")
.setContentIntent(mainIntent)
.setAutoCancel(false)
.setOngoing(true)
.build();
startForeground(mNotificationId, notification);
if (VideoDownloadManager.currentVideoDownloadTask != null) {
VideoDownloadManager.currentVideoDownloadTask.start();
} else {
stopSelf();
}
return START_NOT_STICKY;
}
当我滑动关闭应用程序时,服务也被停止了。 我尝试了 Whosebug 上的所有现有解决方案,但 none 有效。 我尝试了 YouTube 应用程序,但它并没有终止其服务。我该如何实现?谢谢
您正在使用 NOT_STICKY 参数启动服务。 你应该 return START_STICKY 在 onStartCommand()
@Override
public int onStartCommand(Intent intent, int flags, int sid){
this.sid = sid;
PendingIntent mainIntent = PendingIntent.getActivity(this, 0, VuclipPrime.mainIntent, 0);
Notification notification = new NotificationCompat.Builder(VuclipPrime.getInstance())
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Downloading Video")
.setContentText("Initiating...")
.setContentIntent(mainIntent)
.setAutoCancel(false)
.setOngoing(true)
.build();
startForeground(mNotificationId, notification);
if (VideoDownloadManager.currentVideoDownloadTask != null) {
VideoDownloadManager.currentVideoDownloadTask.start();
} else {
stopSelf();
}
return START_STICKY;
}
来自文档:
https://developer.android.com/reference/android/app/Service.html#START_STICKY
- START_STICKY:系统会尝试重新启动服务 它被杀了。
- START_NO_STICKY:系统不会关心是否 服务被杀死。
解决方案是在服务的 onTaskRemoved() 方法中启动虚拟 activity 以防止服务被终止。 启动后立即完成 DummyActivity。
检查以下代码:-
package com.your.application.services;
import android.app.Notification;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.os.Build;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
public class DownloadService extends Service {
int mNotificationId = 001;
Notification notification;
private int sid;
public DownloadService() {
}
@Override
public int onStartCommand(Intent intent, int flags, int sid) {
this.sid = sid;
PendingIntent mainIntent = PendingIntent.getActivity(this, 0, YourApplication.getInstance().downloadService.mainIntent, 0);
notification = new NotificationCompat.Builder(YourApplication.getInstance())
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Starting Service")
.setContentText("Initiating...")
.setContentIntent(mainIntent)
.setAutoCancel(true)
.setOngoing(true)
.build();
startForeground(mNotificationId, notification);
if (YourApplication.getInstance().downloadService.videoDownloader != null) {
YourApplication.getInstance().downloadService.startDonwloadThread(YourApplication.getInstance().downloadService.videoDownloader);
} else {
stopSelf();
}
return START_NOT_STICKY;
}
@Override
public void onDestroy() {
super.onDestroy();
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onTaskRemoved(Intent rootIntent) {
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP_MR1 && Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR2) {
Intent intent = new Intent(this, DummyActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
}
}
虚拟活动:-
public class DummyActivity extends Activity {
@Override
public void onCreate(Bundle bundle) {
super.onCreate(bundle);
finish();
}
}
DummyActivity 的 AndroidManifest 条目:-
<activity
android:name=".downloader.DummyActivity"
android:allowTaskReparenting="true"
android:alwaysRetainTaskState="false"
android:clearTaskOnLaunch="true"
android:enabled="true"
android:excludeFromRecents="true"
android:finishOnTaskLaunch="true"
android:noHistory="true"
android:stateNotNeeded="true"
android:theme="@android:style/Theme.NoDisplay" />
Android 如果在进程处于睡眠模式时未将其列为受保护的应用程序,则停止进程。转到设置->受保护的应用程序->Select 您的应用程序并将其启用为受保护的应用程序。