android 後臺保活我大該使用了下面幾種:
1.雙進程 拉起 —6.0以下
2. JobService --6.0以上
3. 1像素保活 — 怎麼說呢,感覺是7.0以下。適應度低。(問題多,就沒使用了)
4. 無限保活音樂 ---- 效果最好,但是呢耗電。由於我項目特殊性,也採用了。
還使用了前臺服務。 所以效果還是可以了,被殺死情況還算少。但是呢,也是很耗電的。
由於我項目特殊,是給專門的人使用,還會給他們配上充電器。所以就不管了。
下面我說下我怎麼實現的。 1像素保活,由於有時候監聽不到部分系統的,會閃退等
問題就沒有使用了。 最後給大家加上,提供參考。
先說下大概的類:
DownloadService :我們工作的類,也就是爲了保活這個service.
GuardService; 守護服務
StepService:主服務
這倆個是雙進程 拉起
PlayerMusicService: 無限播放音樂,後面爲了好控制關閉,就在工作類中使用無限播放音樂
ScheduleService: JobService 保活方式
ServiceAliveUtils:判斷工作服務是否還活着的工作類
public class ServiceAliveUtils {
public static boolean isServiceAlice() {
boolean isServiceRunning = false;
ActivityManager manager = (ActivityManager) MyApption.getMyApplication().getSystemService(Context.ACTIVITY_SERVICE);
if (manager == null) {
return true;
}
for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
if (" com.example.admin.linyuandome.houtaibaohuo.DownloadService".equals(service.service.getClassName())) {
isServiceRunning = true;
}
}
return isServiceRunning;
}
}
雙進程:
/**
-
守護進程 雙進程通訊
-
@author LiGuangMin
-
@time Created by 2018/8/17 11:27
*/
public class GuardService extends Service {
private final static String TAG = GuardService.class.getSimpleName();
private ServiceConnection mServiceConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
//Logger.d(TAG, “GuardService:建立鏈接”);
boolean isServiceRunning = ServiceAliveUtils.isServiceAlice();
if (!isServiceRunning) {
Intent i = new Intent(GuardService.this, DownloadService.class);
startService(i);
}
}@Override public void onServiceDisconnected(ComponentName componentName) { // 斷開鏈接 startService(new Intent(GuardService.this, StepService.class)); // 重新綁定 bindService(new Intent(GuardService.this, StepService.class), mServiceConnection, Context.BIND_IMPORTANT); }
};
@Nullable
@Override
public IBinder onBind(Intent intent) {
return new KeepAliveConnection.Stub() {
@Override
public void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, String aString) throws RemoteException {} };
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
startForeground(1, new Notification());
// 綁定建立鏈接
bindService(new Intent(this, StepService.class), mServiceConnection, Context.BIND_IMPORTANT);
return START_STICKY;
}
}
/*
主進程
*/
public class StepService extends Service {
private final static String TAG = StepService.class.getSimpleName();
private ServiceConnection mServiceConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
//Logger.d(TAG, “StepService:建立鏈接”);
boolean isServiceRunning = ServiceAliveUtils.isServiceAlice();
if (!isServiceRunning) {
Intent i = new Intent(StepService.this, DownloadService.class);
startService(i);
}
}
@Override
public void onServiceDisconnected(ComponentName componentName) {
// 斷開鏈接
startService(new Intent(StepService.this, GuardService.class));
// 重新綁定
bindService(new Intent(StepService.this, GuardService.class), mServiceConnection, Context.BIND_IMPORTANT);
}
};
@Nullable
@Override
public IBinder onBind(Intent intent) {
return new KeepAliveConnection.Stub() {
@Override
public void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, String aString) throws RemoteException {
}
};
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
startForeground(1, new Notification());
// 綁定建立鏈接
bindService(new Intent(this, GuardService.class), mServiceConnection, Context.BIND_IMPORTANT);
return START_STICKY;
}
}
無限播放音樂:
/*
無限播放音樂
*/
public class PlayerMusicService extends Service {
private final static String TAG = PlayerMusicService.class.getSimpleName();
private MediaPlayer mMediaPlayer;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
// Logger.d(TAG, TAG + "---->onCreate,啓動服務");
mMediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.no_notice);
mMediaPlayer.setLooping(true);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
new Thread(new Runnable() {
@Override
public void run() {
startPlayMusic();
}
}).start();
return START_STICKY;
}
private void startPlayMusic() {
if (mMediaPlayer != null) {
mMediaPlayer.start();
}
}
private void stopPlayMusic() {
if (mMediaPlayer != null) {
mMediaPlayer.stop();
}
}
@Override
public void onDestroy() {
super.onDestroy();
stopPlayMusic();
// 重啓自己
Intent intent = new Intent(getApplicationContext(), PlayerMusicService.class);
startService(intent);
}
}
/*
JobService
*/
@SuppressLint(“NewApi”)
public class ScheduleService extends JobService {
private static final String TAG = ScheduleService.class.getSimpleName();
@Override
public boolean onStartJob(JobParameters params) {
boolean isServiceRunning = ServiceAliveUtils.isServiceAlice();
if (!isServiceRunning) {
Intent i = new Intent(this, DownloadService.class);
startService(i);
// Logger.d(TAG, "ScheduleService啓動了DownloadService");
}
jobFinished(params, false);
return false;
}
@Override
public boolean onStopJob(JobParameters params) {
return false;
}
}
啓動所有保活服務和工作服務
Intent intent = new Intent(mContext, DownloadService.class);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
// 6.0 以上 jobservice
useJobServiceForKeepAlive();
}
//雙守護線程
startService(new Intent(mContext, StepService.class));
startService(new Intent(mContext, GuardService.class));
// 無限播放
startService(new Intent(mContext, PlayerMusicService.class));
關閉就不說了。後面說