[기울기 센서]

package com.example.an19_accelarator;



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.view.Menu;

import android.widget.TextView;

import android.widget.Toast;



public class MainActivity extends Activity implements SensorEventListener {

 TextView tv1, tv2, tv3;

 SensorManager manager;

 Sensor sensor;



 @Override

 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  setContentView(R.layout.activity_main);

  tv1 = (TextView) findViewById(R.id.textView1);

  tv2 = (TextView) findViewById(R.id.textView2);

  tv3 = (TextView) findViewById(R.id.textView3);

  manager  = (SensorManager) getSystemService(SENSOR_SERVICE);

  List <Sensor> list = manager.getSensorList(SensorManager.SENSOR_ACCELEROMETER);

  if(list != null){

   sensor = list.get(0); // 가속도 센서를 얻음

   Toast.makeText(this, "센서 존재"+sensor.getName(), 0).show();

   

  }else{

   Toast.makeText(this, "센서 없음", 0);

  }

 }

 

 protected void onResum(){

  super.onResume();

  // 센서 작동 감시해

  manager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_GAME);

 }

 

 protected void onPause(){

  super.onPause();

  //센서 멈춤

  manager.unregisterListener(this,sensor);

 }

 



 @Override

 public boolean onCreateOptionsMenu(Menu menu) {

  // Inflate the menu; this adds items to the action bar if it is present.

  getMenuInflater().inflate(R.menu.activity_main, menu);

  return true;

 }



 @Override

 public void onAccuracyChanged(Sensor sensor, int accuracy) {

  // TODO Auto-generated method stub

  

 }

 

 /* AnroidManifext.xml 에서 화면이 돌아가지 않도록 고정

  * Activity : screen orientation : portrait(세로) landscape(가로)*/



 @Override //값이 들어오면 호출

 public void onSensorChanged(SensorEvent e) {

  // -9.8 ~ 9.8 까지

  float[] values = e.values;

  float x = values[0];

  float y = values[1];

  float z = values[2];

  tv1.setText("x 가속도" + x);

  tv2.setText("x 가속도" + y);

  tv3.setText("x 가속도" + z);

 }



}