Android 传感器使用

最新推荐文章于 2024-08-13 17:02:52 发布

原创最新推荐文章于 2024-08-13 17:02:52 发布 · 739 阅读

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文章标签：

#传感器 #方向传感器 #光传感器

本文介绍了如何在Android设备上获取并使用各种传感器，包括加速度、磁场、光线等，并提供了具体的代码实现示例。

1.获取手机上的所有的传感器

    SensorManager sensorManager=(SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
    List<Sensor> sensorList=sensorManager.getSensorList(Sensor.TYPE_ALL);
    for(Sensor sensor:sensorList){
        Log.e(sensor.getName()+"----");
   }

加速度传感器：LSM330 3-axis Accelerometer

磁场传感器：AK09911 3-axis Magnetic field sensor

方向传感器：iNemo Orientation sensor

光传感器：Light sensor

近程传感器：Proximity sensor

陀螺仪传感器：LSM330 Gyroscope sensor

重力传感器：iNemo Gravity sensor

线性加速度传感器：iNemo Linear Acceleration sensor

旋转向量传感器：iNemo Rotation Vector sensor

华为自带的传感器：

传感器名字：huawei hall sensor

传感器名字：huawei step counter

传感器更新速率：

SensorManager.SENSOR_DELAY_FASTEST:

指定可能最快的传感器更新速率

SensorManager.SENSOR_DELAY_GAME:

指定适合在游戏中使用的更新速率

SensorManager.SENSOR_DELAY_NORMAL:

指定默认的更新速率

SensorManager.SENSOR_DELAY_UI:

指定适合于更新UI的更新速率

public class Main extends Activity implements SensorEventListener
{
private TextView tvAccelerometer;
private TextView tvMagentic;
private TextView tvLight;
private TextView tvOrientation;
private TextView tvSensors;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// 获得SensorManager对象
SensorManager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
// 注册加速度传感器
sensorManager.registerListener(this,
sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
SensorManager.SENSOR_DELAY_FASTEST);
// 注册磁场传感器
sensorManager.registerListener(this,
sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD),
SensorManager.SENSOR_DELAY_FASTEST);
// 注册光线传感器
sensorManager.registerListener(this,
sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT),
SensorManager.SENSOR_DELAY_FASTEST);
// 注册方向传感器
sensorManager.registerListener(this,
sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION),
SensorManager.SENSOR_DELAY_FASTEST);
tvAccelerometer = (TextView) findViewById(R.id.tvAccelerometer);
tvMagentic = (TextView) findViewById(R.id.tvMagentic);
tvLight = (TextView) findViewById(R.id.tvLight);
tvOrientation = (TextView) findViewById(R.id.tvOrientation);
tvSensors = (TextView)findViewById(R.id.tvSensors);
// 获得当前手机支持的所有传感器
List sensors = sensorManager.getSensorList(Sensor.TYPE_ALL);
for(Sensor sensor:sensors)
{
// 输出当前传感器的名称
tvSensors.append(sensor.getName() + "\n");
}
}
@Override
public void onSensorChanged(SensorEvent event)
{
// 通过getType方法获得当前传回数据的传感器类型
switch (event.sensor.getType())
{
case Sensor.TYPE_ACCELEROMETER: // 处理加速度传感器传回的数据
String accelerometer = "加速度\n" + "X：" + event.values[0] + "\n"
+ "Y:" + event.values[1] + "\n" + "Z:" + event.values[2] + "\n";
tvAccelerometer.setText(accelerometer);
break;
case Sensor.TYPE_LIGHT: // 处理光线传感器传回的数据
tvLight.setText("亮度：" + event.values[0]);
break;
case Sensor.TYPE_MAGNETIC_FIELD: // 处理磁场传感器传回的数据
String magentic = "磁场\n" + "X：" + event.values[0] + "\n" + "Y:"
+ event.values[1] + "\n" + "Z:" + event.values[2] + "\n";
tvMagentic.setText(magentic);
break;
case Sensor.TYPE_ORIENTATION: // 处理方向传感器传回的数据
String orientation = "方向\n" + "X：" + event.values[0] + "\n"
+ "Y:" + event.values[1] + "\n" + "Z:" + event.values[2] + "\n";
tvOrientation.setText(orientation);
break;
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy)
{
}
}