23

我正在尝试显示可用传感器的列表，但好像没有！
我以为是模拟器的原因，但我在手机上试了一下，结果是一样的。

private SensorManager mSensorManager;
TextView mSensorsTot,mSensorAvailables;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    // Get the texts fields of the layout and setup to invisible
    mSensorsTot   = (TextView) findViewById(R.id.sensoritot);
    mSensorAvailables  = (TextView) findViewById(R.id.sensoridisponibili);

    // Get the SensorManager 
    mSensorManager= (SensorManager) getSystemService(SENSOR_SERVICE);

    // List of Sensors Available
    List<Sensor> msensorList = mSensorManager.getSensorList(SensorManager.SENSOR_ALL);

    // Print how may Sensors are there
    mSensorsTot.setText(msensorList.size()+" "+this.getString(R.string.sensors)+"!");

    // Print each Sensor available using sSensList as the String to be printed
    String sSensList = new String("");
    Sensor tmp;
    int x,i;
    for (i=0;i<msensorList.size();i++){
     tmp = msensorList.get(i);
     sSensList = " "+sSensList+tmp.getName(); // Add the sensor name to the string of sensors available
    }
    // if there are sensors available show the list
    if (i>0){
     sSensList = getString(R.string.sensors)+":"+sSensList;
     mSensorAvailables.setText(sSensList);
    }
}
4

4 回答 4

28

该常量SensorManager.SENSOR_ALL已被弃用，似乎不再起作用。

改为查询传感器列表，Sensor.TYPE_ALL它应该可以工作（我的模拟器返回“Goldfish 3-axis Accelerometer”）。

于 2010-05-18T16:39:20.287 回答
9

你可以试试这个代码： - 

package com.example.sensor;

import java.util.List;

import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends ActionBarActivity {

SensorManager smm;
List<Sensor> sensor;
ListView lv;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    smm = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
    lv = (ListView) findViewById (R.id.listView1);
    sensor = smm.getSensorList(Sensor.TYPE_ALL);
    lv.setAdapter(new ArrayAdapter<Sensor>(this, android.R.layout.simple_list_item_1,  sensor));
}
}

只需在您的 xml 布局中放置一个列表视图。

于 2014-12-29T15:35:58.093 回答
4

您可以尝试如下列出传感器：-

String cAPP_FOLDER = 文件夹路径

String cSENSOR_FILE = 文件名

// Create a file to export the sensor info.
File fp = new File(cAPP_FOLDER + cSENSOR_FILE);
fp.createNewFile();
PrintWriter pw = new PrintWriter(new FileWriter(fp, true));

SensorManager oSM = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
List<Sensor> sensorsList = oSM.getSensorList(Sensor.TYPE_ALL);
for (Sensor s : sensorsList) {
    pw.write(s.toString() + "\n");
}
pw.close();

///////////////////////////////////////// /////////////////////////

// 输出文件

{传感器名称=“博世加速度传感器”，供应商=“博世 Sensortec GmbH”，版本=2，类型=1，最大范围=156.88，分辨率=5.984497E-4，功率=0.13，最小延迟=10000}

{Sensor name="BOSCH 磁场传感器", vendor="Bosch Sensortec GmbH", version=2, type=2, maxRange=1600.0, resolution=0.3, power=0.5, minDelay=40000}

{传感器名称="BOSCH 定向传感器", vendor="Bosch Sensortec GmbH", version=2, type=3, maxRange=360.0, resolution=1.0, power=0.63, minDelay=5000}

{Sensor name="BOSCH Gyroscope Sensor", vendor="Bosch Sensortec GmbH", version=2, type=4, maxRange=2500.0, resolution=0.0038146973, power=5.0, minDelay=5000}

{传感器名称="BOSCH 重力传感器", vendor="Bosch Sensortec GmbH", 版本=2, 类型=9, maxRange=19.61, 分辨率=5.984497E-4, 功率=5.63, minDelay=5000}

{Sensor name="BOSCH 直线加速度传感器", vendor="Bosch Sensortec GmbH", version=2, type=10, maxRange=19.61, resolution=5.984497E-4, power=5.63, minDelay=5000}

{Sensor name="BOSCH 旋转矢量传感器", vendor="Bosch Sensortec GmbH", version=2, type=11, maxRange=1.0, resolution=5.9604645E-8, power=5.63, minDelay=5000}

{Sensor name="BOSCH 磁场未校准传感器", vendor="Bosch Sensortec GmbH", version=2, type=14, maxRange=1600.0, resolution=0.3, power=0.5, minDelay=40000}

{Sensor name="BOSCH Game Rotation Vector Sensor", vendor="Bosch Sensortec GmbH", version=2, type=15, maxRange=1.0, resolution=5.9604645E-8, power=5.63, minDelay=5000}

{Sensor name="BOSCH Gyroscope Uncalibrated Sensor", vendor="Bosch Sensortec GmbH", version=2, type=16, maxRange=2500.0, resolution=0.0038146973, power=5.0, minDelay=5000}

{Sensor name="BOSCH Geomagnetic Rotation Vector Sensor", vendor="Bosch Sensortec GmbH", version=2, type=20, maxRange=1.0, resolution=5.9604645E-8, power=5.63, minDelay=5000}

{传感器名称="LIGHT", vendor="MTK", version=1, type=5, maxRange=10240.0, resolution=1.0, power=0.13, minDelay=0}

{传感器名称=“PROXIMITY”，供应商=“MTK”，版本=1，类型=8，最大范围=1.0，分辨率=1.0，功率=0.13，最小延迟=0}

{传感器名称=“SIGNIFICANT_MOTION”，供应商=“MTK”，版本=1，类型=17，最大范围=85.0，分辨率=0.1，功率=0.5，最小延迟=-1}

于 2017-03-21T15:12:39.600 回答
0

SensorManager 类的 getSensorList（int 类型）给出传感器列表 ==> 列表。（获取某种类型的可用传感器列表。）

使用 Sensor.TYPE_ALL 获取所有传感器。多次调用以获取不同类型的传感器。

于 2013-12-19T04:59:33.100 回答