android書架效果

};
private String[] name={
        "天龍八部","搜神記","水滸傳","黑道悲情"
};

private GridView gv;  
private SlidingDrawer sd;  
private Button iv;  
private List<ResolveInfo> apps;  


/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.main);

    bookShelf = (GridView) findViewById(R.id.bookShelf);
    ShlefAdapter adapter=new ShlefAdapter();
    bookShelf.setAdapter(adapter);
    bookShelf.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                long arg3) {
            // TODO Auto-generated method stub
            if(arg2>=data.length){

            }else{
               Toast.makeText(getApplicationContext(), ""+arg2, Toast.LENGTH_SHORT).show();
            }
        }
    });
    loadApps();  
    gv = (GridView) findViewById(R.id.allApps);  
    sd = (SlidingDrawer) findViewById(R.id.sliding);  
    iv = (Button) findViewById(R.id.imageViewIcon);  
    gv.setAdapter(new GridAdapter());  
    sd.setOnDrawerOpenListener(new SlidingDrawer.OnDrawerOpenListener()// 開抽屜  
    {  
        @Override  
        public void onDrawerOpened() {  
            iv.setText("返回");
            iv.setBackgroundResource(R.drawable.btn_local);// 響應開抽屜事件  
                                                            // ，把圖片設為向下的  
        }  
    });  
    sd.setOnDrawerCloseListener(new SlidingDrawer.OnDrawerCloseListener() {  
        @Override  
        public void onDrawerClosed() {  
            iv.setText("本地");
            iv.setBackgroundResource(R.drawable.btn_local);// 響應關抽屜事件  
        }  
    });  
}

class ShlefAdapter extends BaseAdapter{

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return data.length+5;
    }

    @Override
    public Object getItem(int arg0) {
        // TODO Auto-generated method stub
        return arg0;
    }

    @Override
    public long getItemId(int arg0) {
        // TODO Auto-generated method stub
        return arg0;
    }

    @Override
    public View getView(int position, View contentView, ViewGroup arg2) {
        // TODO Auto-generated method stub

        contentView=LayoutInflater.from(getApplicationContext()).inflate(R.layout.item1, null);

        TextView view=(TextView) contentView.findViewById(R.id.imageView1);
        if(data.length>position){
            if(position<name.length){
               view.setText(name[position]);
            }
            view.setBackgroundResource(data[position]);
        }else{
            view.setBackgroundResource(data[0]);
            view.setClickable(false);
            view.setVisibility(View.INVISIBLE);
        }
        return contentView;
    }

}

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    // TODO Auto-generated method stub

    if (keyCode == KeyEvent.KEYCODE_BACK) {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage("你確定退出嗎？")
                .setCancelable(false)
                .setPositiveButton("確定",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,
                                    int id) {
                                finish();
                            }
                        })
                .setNegativeButton("返回",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,
                                    int id) {
                                dialog.cancel();
                            }
                        });
        AlertDialog alert = builder.create();
        alert.show();
        return true;
    }

    return super.onKeyDown(keyCode, event);
}


private void loadApps() {  
    Intent intent = new Intent(Intent.ACTION_MAIN, null);  
    intent.addCategory(Intent.CATEGORY_LAUNCHER);  

    apps = getPackageManager().queryIntentActivities(intent, 0);  
}  

public class GridAdapter extends BaseAdapter {  
    public GridAdapter() {  

    }  

    public int getCount() {  
        // TODO Auto-generated method stub  
        return apps.size();  
    }  

    public Object getItem(int position) {  
        // TODO Auto-generated method stub  
        return apps.get(position);  
    }  

    public long getItemId(int position) {  
        // TODO Auto-generated method stub  
        return position;  
    }  

    public View getView(int position, View convertView, ViewGroup parent) {  
        // TODO Auto-generated method stub  
        ImageView imageView = null;  
        if (convertView == null) {  
            imageView = new ImageView(BookShelfActivity.this);  
            imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);  
            imageView.setLayoutParams(new GridView.LayoutParams(50, 50));  
        } else {  
            imageView = (ImageView) convertView;  
        }  

        ResolveInfo ri = apps.get(position);  
        imageView.setImageDrawable(ri.activityInfo  
                .loadIcon(getPackageManager()));  

        return imageView;  
    }  

}  

}</pre>    代碼寫的有點亂，有待整理下，哈哈。
    上面只是一個畫龍點睛的作用，真要實現一個好的電子書，后面還有跟多的工作，也希望有興趣的朋友能在此基礎上實現一個完美的電子書，然后把源代碼開放，這樣我就不用在往下做了，嘎嘎。