为什么Android湿度传感器不起作用?

如何解决为什么Android湿度传感器不起作用?

我创建了一个从各种传感器读取数据的应用程序。问题是在使用湿度和温度传感器的情况下,不会显示任何信息。其他传感器可以正常工作。

正确工作的光传感器代码:

public class LightFragment extends Fragment implements SensorEventListener {

TextView lightTV;
SensorManager sensorManager;
Sensor lightSensor;

@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.fragment_light,container,false);

    lightTV = (TextView) v.findViewById(R.id.LightValue);

    return v;
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    sensorManager = (SensorManager) getActivity().getSystemService(Context.SENSOR_SERVICE);

    lightSensor = sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);

    sensorManager.registerListener(LightFragment.this,lightSensor,SensorManager.SENSOR_DELAY_NORMAL);
}


@Override
public void onSensorChanged(SensorEvent sensorEvent) {
    Sensor sensor = sensorEvent.sensor;
    if (sensor.getType() == Sensor.TYPE_RELATIVE_HUMIDITY) {

        lightTV.setText(String.format("%.2f",+(int) sensorEvent.values[0]) + "\t\t\t" + "[lux]");

    } else {

        lightTV.setText("Light Sensor not supported on this device");
    }
}

@Override
public void onAccuracyChanged(Sensor sensor,int i) {

}

湿度传感器代码:

public class HumiFragment extends Fragment implements SensorEventListener {

TextView humiTV;
SensorManager sensorManager;
Sensor humiditySensor;

@Override
public View onCreateView(LayoutInflater inflater,Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.fragment_humi,false);

    humiTV = (TextView) v.findViewById(R.id.HumiValue);

    return v;
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    sensorManager = (SensorManager) getActivity().getSystemService(Context.SENSOR_SERVICE);

    humiditySensor = sensorManager.getDefaultSensor(Sensor.TYPE_RELATIVE_HUMIDITY);

    sensorManager.registerListener(HumiFragment.this,humiditySensor,SensorManager.SENSOR_DELAY_NORMAL);
}


@Override
public void onSensorChanged(SensorEvent sensorEvent) {
    Sensor sensor = sensorEvent.sensor;
    if (sensor.getType() == Sensor.TYPE_RELATIVE_HUMIDITY) {

        humiTV.setText(String.format("%.2f",+sensorEvent.values[0]) + "\t\t\t" + "[%]");

    } else {

        humiTV.setText("Humidity Sensor not supported on this device");
    }
}

@Override
public void onAccuracyChanged(Sensor sensor,int i) {

}

温度传感器代码:

public class TempFragment extends Fragment implements SensorEventListener {

TextView tempTV;
SensorManager sensorManager;
Sensor tempSensor;

@Override
public View onCreateView(LayoutInflater inflater,Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.fragment_temp,false);

    tempTV = (TextView) v.findViewById(R.id.TempValue);

    return v;
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    sensorManager = (SensorManager) getActivity().getSystemService(Context.SENSOR_SERVICE);

    tempSensor = sensorManager.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE);

    sensorManager.registerListener(TempFragment.this,tempSensor,SensorManager.SENSOR_DELAY_NORMAL);
}


@Override
public void onSensorChanged(SensorEvent sensorEvent) {
    Sensor sensor = sensorEvent.sensor;
    if (sensor.getType() == Sensor.TYPE_AMBIENT_TEMPERATURE) {

        tempTV.setText(String.format("%.4f",+sensorEvent.values[0]) + "\t\t\t" + "[°C]");

    } else {

        tempTV.setText("Temperature Sensor not supported on this device");
    }
}

@Override
public void onAccuracyChanged(Sensor sensor,int i) {

}

您可以看到所有代码都非常相似,但是onSensorChanged仅在光传感器中有效。我检查了三个不同设备(小米,三星,华为)上的应用程序,并且在这两个特定传感器上均不起作用。 onSensorChanged函数应该显示有关缺少对传感器的支持的信息,但是不存在。两个传感器不工作并且不返回任何信息的原因是什么?

解决方法

Galaxy S4和Note 3是唯一带有湿度计(湿度传感器)和温度计的商业发行设备。某些CAT加固型设备带有温度计。

版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。

相关推荐


使用本地python环境可以成功执行 import pandas as pd import matplotlib.pyplot as plt # 设置字体 plt.rcParams['font.sans-serif'] = ['SimHei'] # 能正确显示负号 p
错误1:Request method ‘DELETE‘ not supported 错误还原:controller层有一个接口,访问该接口时报错:Request method ‘DELETE‘ not supported 错误原因:没有接收到前端传入的参数,修改为如下 参考 错误2:cannot r
错误1:启动docker镜像时报错:Error response from daemon: driver failed programming external connectivity on endpoint quirky_allen 解决方法:重启docker -> systemctl r
错误1:private field ‘xxx‘ is never assigned 按Altʾnter快捷键,选择第2项 参考:https://blog.csdn.net/shi_hong_fei_hei/article/details/88814070 错误2:启动时报错,不能找到主启动类 #
报错如下,通过源不能下载,最后警告pip需升级版本 Requirement already satisfied: pip in c:\users\ychen\appdata\local\programs\python\python310\lib\site-packages (22.0.4) Coll
错误1:maven打包报错 错误还原:使用maven打包项目时报错如下 [ERROR] Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources (default-resources)
错误1:服务调用时报错 服务消费者模块assess通过openFeign调用服务提供者模块hires 如下为服务提供者模块hires的控制层接口 @RestController @RequestMapping("/hires") public class FeignControl
错误1:运行项目后报如下错误 解决方案 报错2:Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project sb 解决方案:在pom.
参考 错误原因 过滤器或拦截器在生效时,redisTemplate还没有注入 解决方案:在注入容器时就生效 @Component //项目运行时就注入Spring容器 public class RedisBean { @Resource private RedisTemplate<String
使用vite构建项目报错 C:\Users\ychen\work>npm init @vitejs/app @vitejs/create-app is deprecated, use npm init vite instead C:\Users\ychen\AppData\Local\npm-
参考1 参考2 解决方案 # 点击安装源 协议选择 http:// 路径填写 mirrors.aliyun.com/centos/8.3.2011/BaseOS/x86_64/os URL类型 软件库URL 其他路径 # 版本 7 mirrors.aliyun.com/centos/7/os/x86
报错1 [root@slave1 data_mocker]# kafka-console-consumer.sh --bootstrap-server slave1:9092 --topic topic_db [2023-12-19 18:31:12,770] WARN [Consumer clie
错误1 # 重写数据 hive (edu)> insert overwrite table dwd_trade_cart_add_inc > select data.id, > data.user_id, > data.course_id, > date_format(
错误1 hive (edu)> insert into huanhuan values(1,'haoge'); Query ID = root_20240110071417_fe1517ad-3607-41f4-bdcf-d00b98ac443e Total jobs = 1
报错1:执行到如下就不执行了,没有显示Successfully registered new MBean. [root@slave1 bin]# /usr/local/software/flume-1.9.0/bin/flume-ng agent -n a1 -c /usr/local/softwa
虚拟及没有启动任何服务器查看jps会显示jps,如果没有显示任何东西 [root@slave2 ~]# jps 9647 Jps 解决方案 # 进入/tmp查看 [root@slave1 dfs]# cd /tmp [root@slave1 tmp]# ll 总用量 48 drwxr-xr-x. 2
报错1 hive> show databases; OK Failed with exception java.io.IOException:java.lang.RuntimeException: Error in configuring object Time taken: 0.474 se
报错1 [root@localhost ~]# vim -bash: vim: 未找到命令 安装vim yum -y install vim* # 查看是否安装成功 [root@hadoop01 hadoop]# rpm -qa |grep vim vim-X11-7.4.629-8.el7_9.x
修改hadoop配置 vi /usr/local/software/hadoop-2.9.2/etc/hadoop/yarn-site.xml # 添加如下 <configuration> <property> <name>yarn.nodemanager.res