public class Alarm_Scheduler {
    public static void schedule_alarm(Context context) {
        AlarmManager alarm_manager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
        Intent intent = new Intent(context, Alarm_Receiver.class);
        PendingIntent pending_intent = PendingIntent.getBroadcast(
                context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE);

        // 高版本无法setExactAndAllowWhileIdle
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
            if (!alarm_manager.canScheduleExactAlarms()) {
                try {
                    intent = new Intent(Settings.ACTION_REQUEST_SCHEDULE_EXACT_ALARM);
                    intent.setData(Uri.parse("package:" + context.getPackageName()));
                    context.startActivity(intent);
                } catch (ActivityNotFoundException e1) {
                    try {
                        // 跳转到应用详情页备选
                        Intent settingsIntent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                        settingsIntent.setData(Uri.parse("package:" + context.getPackageName()));
                        context.startActivity(settingsIntent);
                    }
                    catch (ActivityNotFoundException e2) {
                        // 显示手动引导弹窗
                    }
                }
            }
        }

        // 设置精确唤醒（根据系统版本适配）
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            alarm_manager.setExactAndAllowWhileIdle(
                    AlarmManager.RTC_WAKEUP,
                    System.currentTimeMillis() + TraceApplication.alarm_interval,
                    pending_intent);
        }
        else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            alarm_manager.setExact(
                    AlarmManager.RTC_WAKEUP,
                    System.currentTimeMillis() + TraceApplication.alarm_interval,
                    pending_intent);
        }
        else {
            alarm_manager.set(
                    AlarmManager.RTC_WAKEUP,
                    System.currentTimeMillis() + TraceApplication.alarm_interval,
                    pending_intent);
        }
}