一、修改MainActivity檔案

package com.example.yxp.jxol;

import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;

import java.util.List;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        SensorManager sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);

        List<Sensor> sensorlist = sensorManager.getSensorList(Sensor.TYPE_ALL);// 獲取手機上所有的感測器

        for (int i = 0; i < sensorlist.size(); i++) {

           // System.out.println("感測器的總數："+sensorlist.size());
            //System.out.println("感測器"+i+":"+sensorlist.get(i));
            Log.d("MainActivity", "感測器的總數："+sensorlist.size());
            Log.d("MainActivity","感測器"+i+":"+sensorlist.get(i));

        }
    }


}
 

二、效果