Android加速度感測器應用之晃動次數測試（搖一搖）
MainActivity:
package com.example.sensoreventlistenertest;
import com.example.sensoreventlistenertest.ShakeListener.OnShakeListener;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.os.Vibrator;
import android.app.Activity;
import android.content.Intent;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.SlidingDrawer;
import android.widget.Toast;
import android.widget.SlidingDrawer.OnDrawerCloseListener;
import android.widget.SlidingDrawer.OnDrawerOpenListener;
public class MainActivity extends Activity{
ShakeListener mShakeListener = null; Vibrator mVibrator; private RelativeLayout mImgUp; private RelativeLayout mImgDn; private RelativeLayout mTitle; private SlidingDrawer mDrawer; private Button mDrawerBtn; @Override public void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //drawerSet ();//設定 drawer監聽 切換 按鈕的方向 mVibrator = (Vibrator)getApplication().getSystemService(VIBRATOR_SERVICE); mImgUp = (RelativeLayout) findViewById(R.id.shakeImgUp); mImgDn = (RelativeLayout) findViewById(R.id.shakeImgDown); mTitle = (RelativeLayout) findViewById(R.id.shake_title_bar); mDrawer = (SlidingDrawer) findViewById(R.id.slidingDrawer1); mDrawerBtn = (Button) findViewById(R.id.handle); mDrawer.setOnDrawerOpenListener(new OnDrawerOpenListener() { public void onDrawerOpened() { mDrawerBtn.setBackgroundDrawable(getResources().getDrawable(R.drawable.shake_report_dragger_down)); TranslateAnimation titleup = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,-1.0f); titleup.setDuration(200); titleup.setFillAfter(true); mTitle.startAnimation(titleup); } }); /* 設定SlidingDrawer被關閉的事件處理 */ mDrawer.setOnDrawerCloseListener(new OnDrawerCloseListener() { public void onDrawerClosed() { mDrawerBtn.setBackgroundDrawable(getResources().getDrawable(R.drawable.shake_report_dragger_up)); TranslateAnimation titledn = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,-1.0f,Animation.RELATIVE_TO_SELF,0f); titledn.setDuration(200); titledn.setFillAfter(false); mTitle.startAnimation(titledn); } }); mShakeListener = new ShakeListener(MainActivity.this); mShakeListener.setOnShakeListener(new OnShakeListener() { public void onShake() { //Toast.makeText(getApplicationContext(), "抱歉，暫時沒有找到在同一時刻搖一搖的人。\n再試一次吧！", Toast.LENGTH_SHORT).show(); startAnim(); //開始 搖一搖手掌動畫 mShakeListener.stop(); startVibrato(); //開始 震動 new Handler().postDelayed(new Runnable(){ @Override public void run(){ //Toast.makeText(getApplicationContext(), "抱歉，暫時沒有找到\n在同一時刻搖一搖的人。\n再試一次吧！", 500).setGravity(Gravity.CENTER,0,0).show(); Toast mtoast; mtoast = Toast.makeText(getApplicationContext(), "加油", 10); //mtoast.setGravity(Gravity.CENTER, 0, 0); mtoast.show(); mVibrator.cancel(); mShakeListener.start(); } }, 2000); } });
}
public void startAnim () { //定義搖一搖動畫動畫
AnimationSet animup = new AnimationSet(true);
TranslateAnimation mytranslateanimup0 = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,-0.5f);
mytranslateanimup0.setDuration(1000);
TranslateAnimation mytranslateanimup1 = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,+0.5f);
mytranslateanimup1.setDuration(1000);
mytranslateanimup1.setStartOffset(1000);
animup.addAnimation(mytranslateanimup0);
animup.addAnimation(mytranslateanimup1);
mImgUp.startAnimation(animup);
AnimationSet animdn = new AnimationSet(true);
TranslateAnimation mytranslateanimdn0 = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,+0.5f);
mytranslateanimdn0.setDuration(1000);
TranslateAnimation mytranslateanimdn1 = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,-0.5f);
mytranslateanimdn1.setDuration(1000);
mytranslateanimdn1.setStartOffset(1000);
animdn.addAnimation(mytranslateanimdn0);
animdn.addAnimation(mytranslateanimdn1);
mImgDn.startAnimation(animdn);
}
public void startVibrato(){
MediaPlayer player;
player = MediaPlayer.create(this, R.raw.awe);
player.setLooping(false);
player.start();
//定義震動
mVibrator.vibrate( new long[]{500,200,500,200}, -1); //第一個｛｝裡面是節奏陣列， 第二個引數是重複次數，-1為不重複，非-1俄日從pattern的指定下標開始重複
}
public void shake_activity_back(View v) { //標題欄 返回按鈕
this.finish();
}
public void linshi(View v) { //標題欄
startAnim();
}
@Override
protected void onDestroy() {
super.onDestroy();
if (mShakeListener != null) {
mShakeListener.stop();
}
}
}
晃動監聽activity:
package com.example.sensoreventlistenertest;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.util.Log;
/**
* 一個檢測手機搖晃的監聽器
*/
public class ShakeListener implements SensorEventListener {
// 速度閾值，當搖晃速度達到這值後產生作用
private static final int SPEED_SHRESHOLD = 1000;
// 兩次檢測的時間間隔
private static final int UPTATE_INTERVAL_TIME = 50;
// 感測器管理器
private SensorManager sensorManager;
// 感測器
private Sensor sensor;
// 重力感應監聽器
private OnShakeListener onShakeListener;
// 上下文
private Context mContext;
// 手機上一個位置時重力感應座標
private float lastX;
private float lastY;
private float lastZ;
// 上次檢測時間
private long lastUpdateTime;
// 構造器
public ShakeListener(Context c) {
// 獲得監聽物件
mContext = c;
start();
}
// 開始
public void start() {
// 獲得感測器管理器
sensorManager = (SensorManager) mContext
.getSystemService(Context.SENSOR_SERVICE);
if (sensorManager != null) {
// 獲得重力感測器
sensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
}
// 註冊
if (sensor != null) {
sensorManager.registerListener(this, sensor,
SensorManager.SENSOR_DELAY_GAME);
}
}
// 停止檢測
public void stop() {
sensorManager.unregisterListener(this);
}
// 設定重力感應監聽器
public void setOnShakeListener(OnShakeListener listener) {
onShakeListener = listener;
}
// 重力感應器感應獲得變化資料
public void onSensorChanged(SensorEvent event) {
// 現在檢測時間
long currentUpdateTime = System.currentTimeMillis();
// 兩次檢測的時間間隔
long timeInterval = currentUpdateTime - lastUpdateTime;
// 判斷是否達到了檢測時間間隔
if (timeInterval < UPTATE_INTERVAL_TIME)
return;
// 現在的時間變成last時間
lastUpdateTime = currentUpdateTime;
// 獲得x,y,z座標
float x = event.values[0];
float y = event.values[1];
float z = event.values[2];
// 獲得x,y,z的變化值
float deltaX = x - lastX;
float deltaY = y - lastY;
float deltaZ = z - lastZ;
// 將現在的座標變成last座標
lastX = x;
lastY = y;
lastZ = z;
//sqrt 返回最近的雙近似的平方根
double speed = Math.sqrt(deltaX * deltaX + deltaY * deltaY + deltaZ
* deltaZ)/ timeInterval * 10000;
Log.v("thelog", "===========log===================");
// 達到速度閥值，發出提示
if(deltaZ > 3)
{
onShakeListener.onShake();
}
//if (speed >= SPEED_SHRESHOLD) {
// onShakeListener.onShake();
//}
}
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
// 搖晃監聽介面
public interface OnShakeListener {
public void onShake();
}
}