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 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) {
  }
}