android - 如何为一天的 Firebase 作业调度程序设置延迟

Question

我正在尝试使用 firebase 作业调度程序执行后台任务，问题是应用程序将在 kit to oreo 上运行，我想在特定的定义时间每天在后台执行作业。例如，如果我在早上 7 点工作并且当前时间是下午 5 点，那么函数会在两个小时后执行，但我想每天晚上 7 点执行，

 FirebaseJobDispatcher firebaseJobDispatcher = new FirebaseJobDispatcher(new 
     GooglePlayDriver(context));

        Calendar  now = Calendar.getInstance(TimeZone.getTimeZone("GMT"),

                       Locale.getDefault());

        Calendar fixTime = Calendar.getInstance(TimeZone.getTimeZone("GMT"),
                       Locale.getDefault());

               fixTime.set(Calendar.HOUR, 7);
               fixTime.set(Calendar.MINUTE, 0);
               fixTime.set(Calendar.SECOND, 0);
               fixTime.set(Calendar.AM_PM, Calendar.PM);

             long diff = fixTime.getTimeInMillis() - now.getTimeInMillis() ;
             int seconds = (int) Math.abs(TimeUnit.MILLISECONDS.toSeconds(diff));


          Job networkJob = firebaseJobDispatcher.newJobBuilder()
                       .setService(NotificationJobService.class)
                       .setTag(myJobTag)
                       .setRecurring(true)
                       .setTrigger(Trigger.executionWindow( seconds, seconds+40))
                       .setLifetime(Lifetime.FOREVER)
                       .setReplaceCurrent(true)
                       .setRetryStrategy(RetryStrategy.DEFAULT_EXPONENTIAL)
                       .build();

               firebaseJobDispatcher.schedule(networkJob);