package com.himi;  
import java.util.Vector;  
import android.content.Context;  
import android.graphics.Bitmap;  
import android.graphics.BitmapFactory;  
import android.graphics.Canvas;  
import android.graphics.Color;  
import android.graphics.Paint;  
import android.util.Log;  
import android.view.GestureDetector;  
import android.view.MotionEvent;  
import android.view.SurfaceHolder;  
import android.view.SurfaceView;  
import android.view.View;  
import android.view.GestureDetector.OnGestureListener;  
import android.view.SurfaceHolder.Callback;  
import android.view.View.OnTouchListener;  
/** 
 *@author Himi 
 *@ Gesture （上文）觸摸屏手勢識(shí)別 
 */ 
public class MySurfaceViewAnimation extends SurfaceView implements Callback,  
    Runnable, OnGestureListener, OnTouchListener {  
  private Thread th = new Thread(this);  
  private SurfaceHolder sfh;  
  private Canvas canvas;  
  private Paint paint;  
  private Bitmap bmp;  
  private GestureDetector gd;  
  private int bmp_x, bmp_y;  
  private boolean isChagePage;  
  private Vector<String> v_str;// 備注1  
  public MySurfaceViewAnimation(Context context) {  
    super(context);  
    v_str = new Vector<String>();  
    this.setKeepScreenOn(true);  
    bmp = BitmapFactory.decodeResource(getResources(),  
        R.drawable.himi_dream);  
    sfh = this.getHolder();  
    sfh.addCallback(this);  
    paint = new Paint();  
    paint.setAntiAlias(true);  
    this.setLongClickable(true);  
    // setLongClickable( true )是必須的，因?yàn)?只有這樣，  
    // 我們當(dāng)前的SurfaceView(view)才能夠處理不同于觸屏形式;  
    // 例如：ACTION_MOVE，或者多個(gè)ACTION_DOWN  
    this.setOnTouchListener(this);// 將本類綁定觸屏監(jiān)聽器  
    gd = new GestureDetector(this);  
    gd.setIsLongpressEnabled(true);  
  }  
  public void surfaceCreated(SurfaceHolder holder) {  
    // 當(dāng)系統(tǒng)調(diào)用了此方法才創(chuàng)建了view所以在這里才能取到view的寬高！！有些童鞋總是把東西都放在初始化函數(shù)里！  
    // 線程最好放在這里來啟動(dòng)，因?yàn)榉旁诔跏蓟锏漠嫞莢iew還沒有呢,到了提交畫布unlockCanvasAndPost的時(shí)候就異常啦！  
    bmp_x = (getWidth() - bmp.getWidth()) >> 2;  
    bmp_y = (getHeight() - bmp.getHeight()) >> 2;  
    th.start();  
  }  
  public void draw() {  
    try {  
      canvas = sfh.lockCanvas();  
      if (canvas != null) {  
        canvas.drawColor(Color.WHITE);// 畫布刷屏  
        canvas.drawBitmap(bmp, bmp_x, bmp_y, paint);  
        paint.setTextSize(20);// 設(shè)置文字大小  
        paint.setColor(Color.WHITE);  
        //這里畫出一個(gè)矩形方便童鞋們看到手勢操作調(diào)用的函數(shù)都是哪些  
        canvas.drawRect(50, 30, 175,120, paint);  
        paint.setColor(Color.RED);// 設(shè)置文字顏色  
        if (v_str != null) {  
          for (int i = 0; i < v_str.size(); i++) {  
            canvas.drawText(v_str.elementAt(i), 50, 50 + i * 30,  
                paint);  
          }  
        }  
      }  
    } catch (Exception e) {  
      Log.v("Himi", "draw is Error!");  
    } finally {  
      sfh.unlockCanvasAndPost(canvas);  
    }  
  }  
  @Override 
  public void run() {  
    // TODO Auto-generated method stub  
    while (true) {  
      draw();  
      try {  
        Thread.sleep(100);  
      } catch (Exception ex) {  
      }  
    }  
  }  
  public void surfaceChanged(SurfaceHolder holder, int format, int width,  
      int height) {  
  }  
  public void surfaceDestroyed(SurfaceHolder holder) {  
  }  
  // @Override  
  // public boolean onTouchEvent(MotionEvent event) {// 備注2  
  // return true;  
  // }  
  @Override 
  public boolean onTouch(View v, MotionEvent event) {// 備注3  
    if (v_str != null)  
      v_str.removeAllElements();  
    return gd.onTouchEvent(event);// 備注4  
  }  
  // --------------以下是使用OnGestureListener手勢監(jiān)聽的時(shí)候重寫的函數(shù)---------  
  /** 
   * @以下方法中的參數(shù)解釋： 
   * @e1：第1個(gè)是 ACTION_DOWN MotionEvent 按下的動(dòng)作 
   * @e2：后一個(gè)是ACTION_UP MotionEvent 抬起的動(dòng)作(這里要看下備注5的解釋) 
   * @velocityX：X軸上的移動(dòng)速度，像素/秒 
   * @velocityY：Y軸上的移動(dòng)速度，像素/秒 
   */ 
  @Override 
  public boolean onDown(MotionEvent e) {  
    // ACTION_DOWN  
    v_str.add("onDown");  
    return false;  
  }  
  @Override 
  // ACTION_DOWN 、短按不移動(dòng)  
  public void onShowPress(MotionEvent e) {  
    v_str.add("onShowPress");  
  }  
  @Override 
  // ACTION_DOWN 、長按不滑動(dòng)  
  public void onLongPress(MotionEvent e) {  
    v_str.add("onLongPress");  
  }  
  @Override 
  // ACTION_DOWN 、慢滑動(dòng)  
  public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,  
      float distanceY) {  
    v_str.add("onScroll");  
    return false;  
  }  
  @Override 
  // ACTION_DOWN 、快滑動(dòng)、 ACTION_UP  
  public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,  
      float velocityY) {  
    v_str.add("onFling");  
    //-------備注5----------  
    // if(e1.getAction()==MotionEvent.ACTION_MOVE){  
    // v_str.add("onFling");  
    // }else if(e1.getAction()==MotionEvent.ACTION_DOWN){  
    // v_str.add("onFling");  
    // }else if(e1.getAction()==MotionEvent.ACTION_UP){  
    // v_str.add("onFling");  
    // }  
    // if(e2.getAction()==MotionEvent.ACTION_MOVE){  
    // v_str.add("onFling");  
    // }else if(e2.getAction()==MotionEvent.ACTION_DOWN){  
    // v_str.add("onFling");  
    // }else if(e2.getAction()==MotionEvent.ACTION_UP){  
    // v_str.add("onFling");  
    // }  
    if (isChagePage)  
      bmp = BitmapFactory.decodeResource(getResources(),  
          R.drawable.himi_dream);  
    else 
      bmp = BitmapFactory.decodeResource(getResources(),  
          R.drawable.himi_warm);  
    isChagePage = !isChagePage;  
    return false;  
  }  
  @Override 
  // 短按ACTION_DOWN、ACTION_UP  
  public boolean onSingleTapUp(MotionEvent e) {  
    v_str.add("onSingleTapUp");  
    return false;  
  }  
}