가속센서를 이용한 단말 흔들림 체크
Mobile Programming/Android / 2010/10/06 01:19
package com.kmshack.testapp;
import android.app.Activity;
import android.graphics.Color;
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 testapp extends Activity implements SensorEventListener {
private long lastTime;
private float speed;
private float lastX;
private float lastY;
private float lastZ;
private float x, y, z;
//민감도(수치가 낮을수록 민감)
private static final int SHAKE_THRESHOLD = 1000;
private static final int DATA_X = SensorManager.DATA_X;
private static final int DATA_Y = SensorManager.DATA_Y;
private static final int DATA_Z = SensorManager.DATA_Z;
TextView t;
int count=0;
private SensorManager sensorManager;
private Sensor accelerormeterSensor;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
accelerormeterSensor = sensorManager
.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
t = (TextView)findViewById(R.id.TextView01);
}
@Override
public void onStart() {
super.onStart();
if (accelerormeterSensor != null)
sensorManager.registerListener(this, accelerormeterSensor,
SensorManager.SENSOR_DELAY_GAME);
}
@Override
public void onStop() {
super.onStop();
if (sensorManager != null)
sensorManager.unregisterListener(this);
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
@Override
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER)
{
long currentTime = System.currentTimeMillis();
long gabOfTime = (currentTime - lastTime);
//센서 동작이 이전/이후 시간의 차이가 0.1초 이내이면
if (gabOfTime > 100)
{
lastTime = currentTime;
x = event.values[SensorManager.DATA_X];
y = event.values[SensorManager.DATA_Y];
z = event.values[SensorManager.DATA_Z];
speed = Math.abs(x + y + z - lastX - lastY - lastZ) / gabOfTime * 10000;
if (speed > SHAKE_THRESHOLD)
{
// 이벤트 발생!!
count++;
t.setText(count +"");
}
lastX = event.values[DATA_X];
lastY = event.values[DATA_Y];
lastZ = event.values[DATA_Z];
}
}
}
}
HangulKeyboard.apk
