Question

我正在尝试与const isActive = onActive => (match, location) => { if (match) { onActive(); } return match; } const App = () => { const onActive = () => console.log("link is active"); return ( <BrowserRouter> <div> <NavLink to="/abc" activeClassName="active" isActive={isActive(onActive)}>Go To ABC</NavLink> <Route path="/abc" render={() => <h1>ABC Page</h1>} /> </div> </BrowserRouter> ); }合作，并提供服务以将自动SMS发送至某些号码。我遵循了一些教程，并编写了如下内容：

AlarmManager

我的BroadcastReceiver：

        SwitchPreference testPref = (SwitchPreference) findPreference("key_auto_sms");
        SharedPreferences sharedPrefs = getActivity().getSharedPreferences("XXXXXXXXX", MODE_PRIVATE);
        testPref.setChecked(sharedPrefs.getBoolean("AutoSMS", false));

        testPref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
            @Override
            public boolean onPreferenceClick(Preference preference) {
                if (testPref.isChecked()) {

                    Calendar calendar = Calendar.getInstance();
                    calendar.setTimeInMillis(System.currentTimeMillis());
                    int curHr = calendar.get(Calendar.HOUR_OF_DAY);
                    // Checking whether current hour is over 14
                    if (curHr >= 15)
                    {
                        // Since current hour is over 15, setting the date to the next day
                        calendar.add(Calendar.DATE, 1);
                    }


                    calendar.set(Calendar.HOUR_OF_DAY, 15);
                    calendar.set(Calendar.MINUTE, 1);
                    calendar.set(Calendar.SECOND, 00);


                    AlarmManager am = (AlarmManager) getActivity().getSystemService(Context.ALARM_SERVICE);
                    Intent i = new Intent(getActivity(), AlarmReceiver.class);
                    final PendingIntent pi = PendingIntent.getBroadcast(getActivity(), 0, i, PendingIntent.FLAG_UPDATE_CURRENT);
                    am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi);


                    SharedPreferences.Editor editor = getActivity().getSharedPreferences("XXXXXXXXX", MODE_PRIVATE).edit();
                    editor.putBoolean("AutoSMS", true);
                    editor.commit();
                    Toast.makeText(getActivity(), getResources().getString(R.string.Auto_SMS_Enable), Toast.LENGTH_SHORT).show();


                } else {

                    SharedPreferences.Editor editor = getActivity().getSharedPreferences("com.camel.work_list", MODE_PRIVATE).edit();
                    editor.putBoolean("AutoSMS", false);
                    editor.commit();
                    Toast.makeText(getActivity(), getResources().getString(R.string.Auto_SMS_Cancle), Toast.LENGTH_SHORT).show();

                    Intent intent1 = new Intent(getActivity(), AlarmReceiver.class);
                    final PendingIntent pendingIntent = PendingIntent.getBroadcast(getActivity(), 0, intent1, PendingIntent.FLAG_CANCEL_CURRENT);
                    AlarmManager alarm = (AlarmManager) getActivity().getSystemService(Context.ALARM_SERVICE);
                    alarm.cancel(pendingIntent);
                    //getActivity().stopService(intent1);
                }
                return false;
            }
        });
    }

因此，问题在于警报仅会运行一次，然后在第二天停止工作。

我想念什么？

Answer 1

您不应使用setRepeating（），因为它在时间间隔上不准确。您可以一次使用set（）函数，它将更准确地工作，当广播被调用时，您可以再次调用set（）（如递归），它将起作用。这是我的警报设置代码，不适用于huawei等设备，因为这些进程将被杀死。与华为一起使用JobScheduler。如果屏幕关闭时屏幕变亮，则可以正常工作。它不能正常工作。最近，有一个适用于所有设备的WorkManager库，我没有时间研究它，因此我对WorkManager库没有任何建议。希望对您有帮助

AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
            assert alarmManager != null;
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                alarmManager.setAlarmClock(new AlarmManager.AlarmClockInfo(time, pendingIntent), pendingIntent);
            } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
                alarmManager.setExact(AlarmManager.RTC_WAKEUP, time, pendingIntent);
            } else {
                alarmManager.set(AlarmManager.RTC_WAKEUP, time, pendingIntent);
            }

Android AlarmManager仅重复一次

1 个答案: