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public class PanlewarActivity extends ActionBarActivity {
       int screenwidth;    int screenheight;    ProcessView processview;    Handler myhander = new Handler() {        public void handleMessage(Message msg) {        }    };    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        //setContentView(R.layout.activity_main);        requestWindowFeature(Window.FEATURE_NO_TITLE);//取消标题        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,                WindowManager.LayoutParams.FLAG_FULLSCREEN);//全屏        DisplayMetrics dm = new DisplayMetrics();//获取屏幕大小        getWindowManager().getDefaultDisplay().getMetrics(dm);        screenwidth = dm.widthPixels;        screenheight = dm.heightPixels;        processview = new ProcessView(this, 1, screenwidth, screenheight);        this.setContentView(processview);    }}

public class ProcessView extends SurfaceView implements SurfaceHolder.Callback{
       Bitmap processbackground;    private TutorialThread thread;//刷帧的线程    Bitmap process;    int proces=0;    int startx,starty;    private Paint paint;    private boolean flag=true;    private PanlewarActivity activity;    int scren_width=400;    int scren_heigt=800;    private int type;public ProcessView(PanlewarActivity activity, int type,int screenwidth,int screenheight) {       super(activity);       this.activity = activity;//得到activity的引用       getHolder().addCallback(this);       this.thread = new TutorialThread(getHolder(), this);//初始化重绘线程       this.type = type;       paint = new Paint();//创建画笔   /* */       this.scren_width=screenwidth;       this.scren_heigt=screenheight;        paint.setTextSize(12);//设置字体大小        process = BitmapFactory.decodeResource(getResources(), R.drawable.process);        processbackground = BitmapFactory.decodeResource(getResources(), R.drawable.background_prg);        this.startx=scren_width/2-process.getWidth()/2;        this.starty=scren_heigt/2-process.getHeight()/2-process.getHeight()/4;    }public void onDraw(Canvas canvas){    Rect rect1 = new Rect(0,0,processbackground.getWidth(),processbackground.getHeight());    Rect rect2 = new Rect(0,0,scren_width,scren_heigt);    canvas.drawBitmap(processbackground,rect1,rect2, null);    canvas.drawBitmap(process,startx,starty, paint);    canvas.drawRect(startx+proces*(process.getWidth()/100),starty,startx+process.getWidth(),            starty+process.getHeight(),paint);    canvas.drawText("加载中……"+ proces + "%"            ,startx+(process.getWidth()/2)-20,            starty+(process.getHeight()+20),paint);}private WindowManager getWindowManager() {    // TODO Auto-generated method stub    return null;}@Overridepublic void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {    // TODO Auto-generated method stub}@Overridepublic void surfaceCreated(SurfaceHolder arg0) {    // TODO Auto-generated method stub     this.thread.setFlag(true);//设置线程标志位     this.thread.start();//启动线程}@Overridepublic void surfaceDestroyed(SurfaceHolder arg0) {    // TODO Auto-generated method stub     boolean retry = true;//循环标志位     thread.setFlag(false);//设置循环标志位     while (retry) {         try {             thread.join();//等待线程结束             retry = false;         }          catch (InterruptedException e) {}//不断地循环，直到刷帧线程结束     }}class TutorialThread extends Thread{
  //刷帧线程    private int span = 600;//睡眠的毫秒数     private SurfaceHolder surfaceHolder;    private ProcessView processView;//processView引用    private boolean flag = false;//循环标志位    public TutorialThread(SurfaceHolder surfaceHolder, ProcessView processView) {
  //构造器        this.surfaceHolder = surfaceHolder;        this.processView = processView;//得到加载界面    }    public void setFlag(boolean flag){
  //设置标志位        this.flag = flag;    }    public void run(){
  //重写的run方法        Canvas c;//画布        while (this.flag){
  //循环            c = null;            try {                // 锁定整个画布，在内存要求比较高的情况下，建议参数不要为null                c = this.surfaceHolder.lockCanvas(null);                synchronized (this.surfaceHolder) {                    processView.onDraw(c);//调用绘制方法                }            } finally {                if(c!= null) {                    //更新屏幕显示内容                    this.surfaceHolder.unlockCanvasAndPost(c);                }            }            try{                Thread.sleep(span);//睡眠指定毫秒数            }            catch(Exception e){
  //捕获异常信息                e.printStackTrace();//打印异常信息            }            proces+=20;            if(proces==100){                if(processView.type == 1){
  //切到WelcomeView                    //processView.activity.myhander.sendEmptyMessage(4);//向主activity发送Handler消息                }            }        }    }}}

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