Service和启动其他应用的功能和替换Fragment

Service后台奔溃

1.启动

        Intent intent = new Intent(this, SpotLightService.class);this.startService(intent); //这个普通启动会在低内存的时候被杀掉//普通的启动修改成前台启动this.startForegroundService(intent);

2.修改SERVICE

    @Overridepublic int onStartCommand(Intent intent, int flags, int startId) {int startResult = super.onStartCommand(intent,flags,startId);startForeground();return START_STICKY;}private void startForeground() {final NotificationManager noMan = getSystemService(NotificationManager.class);noMan.createNotificationChannel(new NotificationChannel(NOTIFICATION_CHANNEL_ID, NOTIFICATION_CHANNEL_ID,NotificationManager.IMPORTANCE_DEFAULT));//Log.d(TAG, "Starting foreground. myUid=" + Process.myUid());startForeground(NOTIFICATION_ID,new Notification.Builder(this,NOTIFICATION_CHANNEL_I

根据包名启动应用

    public boolean startAPPFromPackageName( String pckName) {if (pckName.equals("acr.browser.lightning.activity.MainActivity") || pckName.equals("com.android.bthsrv.MainActivity")) {Intent intent = new Intent().setComponent(new ComponentName("com.viso.mdm" , pckName) );intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);intent.addFlags(Intent.FLAG_ACTIVITY_NO_USER_ACTION);sContext.startActivity(intent);}try {Intent intent = isexit(pckName);if (intent == null) {}intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);intent.addFlags(Intent.FLAG_ACTIVITY_NO_USER_ACTION);sContext.startActivity(intent);return true;} catch (Exception e) {e.printStackTrace();}return false;}public Intent isexit(String pk_name) {PackageManager packageManager = sContext.getPackageManager();Intent it = packageManager.getLaunchIntentForPackage(pk_name);return it;}

其中从最近任务栏进入wps如果不经过特殊处理则不能进入

        //判断是否为WPS，如果是WPS应用，通过任务ID启动，否则当有多个WPS任务时，会导致WPS报错if ("cn.wps.moffice_eng".equals(bean.getPackageName())) {ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);manager.moveTaskToFront(bean.getId(), ActivityManager.MOVE_TASK_WITH_HOME);} else {mRecentTaskHelper.startAppByClassName(this, bean.getPackageName(), bean.getClassName());}

//获取最近任务栏应用List<ActivityManager.RecentTaskInfo> appTasks = activityManager.getRecentTasks(Integer.MAX_VALUE, ActivityManager.RECENT_IGNORE_UNAVAILABLE);if (appTasks == null || appTasks.size() == 0) {emitter.onNext(taskList);return;}for (ActivityManager.RecentTaskInfo taskInfo : appTasks) {ResolveInfo resolveInfo = packageManager.resolveActivity(taskInfo.baseIntent, 0);String packageName = resolveInfo.activityInfo.packageName;//过滤不需要的应用if (!isNotShowApp(mContext, packageName)) {TaskBean bean = new TaskBean();bean.setName(resolveInfo.loadLabel(

System.currentTimeMillis()的时间会有误差，如果时区不同会造成误差，所以使用SystemClock.elapsedRealtime();是比较准确的做法

** 替换FragmentManager **

FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.replace(R.id.right_fragment, fragment);
transaction.addToBackStack(null);
transaction.commit();