acceleracion

package net.everblut.accelexample;

import java.util.List;

import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.app.Activity;
import android.content.pm.ActivityInfo;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;


public class AccelActivity extends Activity implements SensorEventListener {

    private float actualX = 0, oldX =0, deltaX = 0;
    private float actualY = 0, oldY =0, deltaY = 0;
    private float actualZ = 0, oldZ =0, deltaZ = 0;
    private float umbral = 4.0f;
    private TextView labelX, labelY, labelZ;
    private ImageView imagen;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_accel);
        labelX = (TextView) findViewById(R.id.labelX);
        labelY = (TextView) findViewById(R.id.labelY);
        labelZ = (TextView) findViewById(R.id.labelZ);
        this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        imagen = (ImageView) findViewById(R.id.flecha);
    }

    @Override
    protected void onResume(){
        super.onResume();
        SensorManager senManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        List<Sensor> sensores = senManager.getSensorList(Sensor.TYPE_ACCELEROMETER);
        if(sensores.size() > 0 ){
            senManager.registerListener(this,sensores.get(0), SensorManager.SENSOR_DELAY_NORMAL);
        }
    }

    @Override
    protected void onStop(){
        SensorManager senManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        senManager.unregisterListener(this);
        super.onStop();
    }

    @Override
    public void onAccuracyChanged(Sensor arg0, int arg1) {}

    @Override
    public void onSensorChanged(SensorEvent event) {
        synchronized(this){
            actualX = event.values[0];
            actualY = event.values[1];
            actualZ = event.values[2];
            if(oldX == 0 && oldY == 0 && oldZ == 0){
                oldX = actualX;
                oldY = actualY;
                oldZ = actualZ;
            }else{
                deltaX = (Math.abs(oldX - actualX) < umbral )? 0.0f : Math.abs(oldX - actualX);
                deltaY = (Math.abs(oldY - actualY) < umbral )? 0.0f : Math.abs(oldY - actualY);
                deltaZ = (Math.abs(oldZ - actualZ) < umbral )? 0.0f : Math.abs(oldZ - actualZ);
                oldX = actualX;
                oldY = actualY;
                oldZ = actualZ;
            }
            labelX.setText(Float.toString(deltaX));
            labelY.setText(Float.toString(deltaY));
            labelZ.setText(Float.toString(deltaZ));
            imagen.setVisibility(View.VISIBLE);
            if(deltaX > deltaY) {
                imagen.setImageResource(R.drawable.shaker1);
            }else if(deltaY > deltaX){
                imagen.setImageResource(R.drawable.shaker2);
            }else{
                imagen.setVisibility(View.INVISIBLE);
            }
        }
        labelX.setText("Eje X> "+Float.toString(event.values[0]));
        labelY.setText("Eje Y> "+Float.toString(event.values[1]));
        labelZ.setText("Eje Z> "+Float.toString(event.values[2]));
    }

}