android书架效果
以前也模仿者ireader实现了书架的效果，但是那种是使用listview实现的，并不好用。绝大多数都是用gridview实现的，网上这方面资料比较少，有些开源的电子书都是重点做了阅读，并没有像ireader和QQ阅读这样的书架效果。
书架这种效果我早就实现了，本来想做一个完美的电子书，但是因为自己的懒惰，仅仅持续了一两天，今天又找到了以前的代码分享出来，希望大家能一起实现一个比较完美的开源的电子书。废话不多说先看下效果：
本地部分还没有做，做好以后就可以吧本地的书加载到书架里了，这只是一个开始，后面还有很多复杂的没有做。
下面先看一下书架的实现原理吧！
首先看一下layout下的布局文件main.xml
public class BookShelfActivity extends BaseActivity { private GridView bookShelf; private int[] data = {R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt,R.drawable.cover_txt}; private String[] name={ "天龙八部","搜神记","水浒传","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() {@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {// TODO Auto-generated method stubif(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()// 开抽屉 { @Override public void onDrawerOpened() { iv.setText("返回"); iv.setBackgroundResource(R.drawable.btn_local);// 响应开抽屉事件 // ，把图片设为向下的 } }); sd.setOnDrawerCloseListener(new SlidingDrawer.OnDrawerCloseListener() { @Override public void onDrawerClosed() { iv.setText("本地"); iv.setBackgroundResource(R.drawable.btn_local);// 响应关抽屉事件 } }); } class ShlefAdapter extends BaseAdapter{@Overridepublic int getCount() {// TODO Auto-generated method stubreturn data.length+5;}@Overridepublic Object getItem(int arg0) {// TODO Auto-generated method stubreturn arg0;}@Overridepublic long getItemId(int arg0) {// TODO Auto-generated method stubreturn arg0;}@Overridepublic View getView(int position, View contentView, ViewGroup arg2) {// TODO Auto-generated method stubcontentView=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;} } @Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {// TODO Auto-generated method stubif (keyCode == KeyEvent.KEYCODE_BACK) {AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setMessage("你确定退出吗？").setCancelable(false).setPositiveButton("确定",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; } } } 代码写的有点乱，有待整理下，哈哈。 最后附上源码下载地址：点击打开链接