android - 如何使用 Android 中的后台服务每 5 分钟获取一次设备位置？

Question

我想每 5 分钟获取一次用户位置并显示为 Toast。哪种方法最好？ 服务还是IntentService？我想通过单击按钮启动和停止服务。怎么做？

Answer 1

使用报警服务触发位置服务，将位置保存在数据库表中

public static void setAlarmTimely(Context context) {
    AlarmManager alarmMgr;
    PendingIntent alarmIntent;

    alarmMgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
    Intent intent = new Intent(context, AlarmReceiver.class);
    intent.putExtra(IntentConstants.ALARM_INTENT, IntentConstants.INTENT_REQUEST_CODE_LOCATION_TRACK);
    alarmIntent = PendingIntent
            .getBroadcast(context, IntentConstants.INTENT_REQUEST_CODE_LOCATION_TRACK, intent, 0);
    alarmMgr.cancel(alarmIntent);

    Calendar calendar = Calendar.getInstance();
    LOGD(TAG, time + " ");
    alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis() + locationCaptureTime * 60 * 1000,
            5 * 60 * 1000, alarmIntent);
}

点击按钮取消闹钟

AlarmManager alarmMgr;
    PendingIntent alarmIntent;
    LOGD(TAG, "cancelling location update");
    alarmMgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
    Intent intent = new Intent(context, AlarmReceiver.class);
    intent.putExtra(IntentConstants.ALARM_INTENT, IntentConstants.INTENT_REQUEST_CODE_LOCATION_TRACK);
    alarmIntent = PendingIntent
            .getBroadcast(context, IntentConstants.INTENT_REQUEST_CODE_LOCATION_TRACK, intent, 0);
    alarmMgr.cancel(alarmIntent);