Android:Crash:二进制XML文件行：膨胀类时出错（使用SurfaceView）

我正在使用android surfaceView，我正在尝试为它添加按钮。 在surfaceView画布上我画了一些东西。我有一个线程类来保持绘图

package com.androidsurfaceview;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class androidsurfaceview extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Button buttonShowHide = (Button)findViewById(R.id.showhide);
        final Button buttonDummy = (Button)findViewById(R.id.dummy);

        buttonShowHide.setOnClickListener(
                new Button.OnClickListener(){

                    @Override
                    public void onClick(View arg0) {
                        // TODO Auto-generated method stub
                        if(buttonDummy.getVisibility()==View.VISIBLE){
                            buttonDummy.setVisibility(View.GONE);
                        }
                        else{
                            buttonDummy.setVisibility(View.VISIBLE);
                        }
                    }

                }
        );

线程类

package com.androidsurfaceview;

import android.graphics.Canvas;
import android.view.SurfaceHolder;
public class MySurfaceThread extends Thread {
    private SurfaceHolder myThreadSurfaceHolder;
    private com.androidsurfaceview.test.MySurfaceView  myThreadSurfaceView;
    private boolean myThreadRun = false;

    public MySurfaceThread(SurfaceHolder surfaceHolder, com.androidsurfaceview.test.MySurfaceView surfaceView) {
        myThreadSurfaceHolder = surfaceHolder;
        myThreadSurfaceView = surfaceView;
    }

    public void setRunning(boolean b) {
        myThreadRun = b;
    }

    @Override
    public void run() {
        // TODO Auto-generated method stub
        while(myThreadRun){
            Canvas c = null;

            try{
                c = myThreadSurfaceHolder.lockCanvas(null);
                synchronized (myThreadSurfaceHolder){
                    myThreadSurfaceView.onDraw(c);
                }
                sleep(100);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            finally{
                // do this in a finally so that if an exception is thrown
                // during the above, we don't leave the Surface in an
                // inconsistent state
                if (c != null) {
                    myThreadSurfaceHolder.unlockCanvasAndPost(c);
                }
            }
        }
    }
}

surfaceView&绘图类

 package com.androidsurfaceview;

import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

 public class test extends Activity{

      //     ......
       //   I do a few things here... with this class test.

    public class MySurfaceView extends SurfaceView implements SurfaceHolder.Callback{

        private MySurfaceThread thread;
        private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
        int cx, cy, offx, offy;

        public MySurfaceView(Context context) {
            super(context);
            // TODO Auto-generated constructor stub
            init();
        }

        public MySurfaceView(Context context, AttributeSet attrs) {
            super(context, attrs);
            // TODO Auto-generated constructor stub
            init();
        }

        public MySurfaceView(Context context, AttributeSet attrs, int defStyle) {
            super(context, attrs, defStyle);
            // TODO Auto-generated constructor stub
            init();
        }

         private void init(){
              getHolder().addCallback(this);
              thread = new MySurfaceThread(getHolder(), this);

              setFocusable(true); // make sure we get key events

              paint.setStyle(Paint.Style.STROKE);
              paint.setStrokeWidth(3);
              paint.setColor(Color.WHITE);

              cx = 0;
              cy = 0;
              offx = 10;
              offy = 10;

             }

        @Override
        public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
            // TODO Auto-generated method stub

        }

        @Override
        public void surfaceCreated(SurfaceHolder holder) {
            // TODO Auto-generated method stub
            thread.setRunning(true);
            thread.start();

        }

        @Override
        public void surfaceDestroyed(SurfaceHolder holder) {
            // TODO Auto-generated method stub
            boolean retry = true;
            thread.setRunning(false);
            while (retry) {
                try {
                    thread.join();
                    retry = false;
                } 
                catch (InterruptedException e) {
                }
            }
        }
    ////Just a simple graphic of moving circle.
        @Override
        protected void onDraw(Canvas canvas) {
            // TODO Auto-generated method stub
            canvas.drawRGB(0, 0, 0);
            canvas.drawCircle(cx, cy, 3, paint);
            cx += offx;
            if (cx > getWidth() || (cx < 0)){
                offx *= -1;
                cx += offx;
            }

            cy += offy;
            if (cy > getHeight() || (cy < 0)){
                offy *= -1;
                cy += offy;
            }
        }
    }
    }

---

任何帮助都将是巨大的…我对此束手无策。

首先，您必须将您的视图声明为

静态类型，以便能够在没有holding类实例可用时对其进行膨胀：

public static class MySurfaceView extends SurfaceView 
    implements SurfaceHolder.Callback

线路

<com.androidsurfaceview.test.MySurfaceView

因此，必须在布局xml中指定视图，如下所示：

<view class="com.androidsurfaceview.test$MySurfaceView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"/>



这样就可以了。
我认为如果我将“MySurfaceView”作为嵌套/内部类，则无法找到该类。任何想法！你真的在那个包里有那个类吗？因为您一直按照包命名约定命名类，而在共享核心中根本没有包声明！如果您使用的是默认软件包，请尝试添加。更新了包裹的详细信息。非常感谢！！！成功了。最初我还尝试将类设置为静态。但是我不知道我必须给它一个视图类&$。你推荐我可以学习的教程或书籍吗？通过阅读，我学到了很多，但是有很多教程和示例。我最喜欢的是@Renaun Ericksson的技巧和@Commonware的示例。即使使用正确的XML，我也会遇到同样的错误，我是否应该打开另一张罚单？这与您所说的完全相同，但经过更正，请注意，包声明中的测试是保存MySurfaceView静态类的类的名称。这可能会让人困惑，因为它是以小写开头的。谢谢，在我的内部类中添加关键字static解决了我的问题
<com.androidsurfaceview.test.MySurfaceView

<com.androidsurfaceview.test$MySurfaceView

<view class="com.androidsurfaceview.test$MySurfaceView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"/>