Android开发获取传感器数据的方法示例【加速度传感器，磁场传感器，光线传感器，方向传感器】

package mobile.android.sensor;import java.util.List;import android.app.Activity;import android.hardware.Sensor;import android.hardware.SensorEvent;import android.hardware.SensorEventListener;import android.hardware.SensorManager;import android.os.Bundle;import android.widget.TextView;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<Sensor> 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) {  }}