GridView适配

LibraryFragment

public class LibraryFragment extends Fragment {private GridView gridview;private LibraryAdpter libraryAdpter;private List<Book> books;private Context ctx;private final String TAG = "LibraryFragment";private boolean isWeb = false;private boolean delFalg = false;@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {return inflater.inflate(R.layout.library_fragment, container, false);}@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);ctx = getActivity();}@Overridepublic void onActivityCreated(Bundle savedInstanceState) {super.onActivityCreated(savedInstanceState);gridview = (GridView) getActivity().findViewById(R.id.grid);if(isWeb){getBookFromWeb();}else{getBookFromNativa();}}public LibraryFragment(){}public LibraryFragment(boolean isWeb){this.isWeb = isWeb;}public static LibraryFragment newInstance(boolean isWeb) {LibraryFragment lf = new LibraryFragment();Bundle args = new Bundle();lf.setArguments(args);return lf;}private void getBookFromWeb() {WebRequest.requestFromWeb(new AsyncHttpResponseHandler() {@Overridepublic void onSuccess(int statusCode, Header[] arg1,byte[] responseBody) {if (statusCode == 200) {String result = new String(responseBody);String syncTime = BookDas.pushBookData2Db(result);books = BookDas.getBooks( BookDas.getCurrentUserRestypes(), 0);if (syncTime == null ||!syncTime.isEmpty()) {BookDas.updateSynctime( syncTime);}if (books != null) {libraryAdpter = new LibraryAdpter(ctx,books,gridview);gridview.setAdapter(libraryAdpter);}}}@Overridepublic void onFailure(int arg0, Header[] arg1, byte[] arg2,Throwable erro) {Logger.e(TAG, "失败::" + erro.getLocalizedMessage());}}, CommConst.REQUEST_BOOKLIST_METHOD, new String[][] {{ "platform", CommConst.PLATFORM_VAL}, {"synctime", BookDas.getLastSyncTime()}});}private void getBookFromNativa(){books = BookDas.getBooks( BookDas.getCurrentUserRestypes(),1);if (books != null) {libraryAdpter = new LibraryAdpter(ctx, books,gridview);gridview.setAdapter(libraryAdpter);gridview.setOnItemLongClickListener(new OnItemLongClickListener() {@Overridepublic boolean onItemLongClick(AdapterView<?> arg0, View arg1,int arg2, long arg3) {libraryAdpter.setDelFlag(true);delFalg = true;return true;}});gridview.setOnItemClickListener(new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1,int position, long arg3) {if(delFalg){delFalg = false;libraryAdpter.setDelFlag(false);}}});}}}

library_fragment.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <View        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="0.5" />    <LinearLayout        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="6.5"        android:orientation="horizontal" >        <View            android:layout_width="0dp"            android:layout_height="match_parent"            android:layout_weight="1" />        <GridView            android:id="@+id/grid"            android:layout_width="0dp"            android:layout_height="match_parent"            android:layout_weight="8"            android:listSelector="#00000000"            android:scrollbars="none"            android:numColumns="3" />        <View            android:layout_width="0dp"            android:layout_height="match_parent"            android:layout_weight="1" />    </LinearLayout>    <View        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="0.5" /></LinearLayout>

LibraryAdpter

public class LibraryAdpter extends BaseAdapter {private List<Book> books = null;private LayoutInflater infater = null;private AsyncImageDownloader mDownloader;private GridView mGridView1;private Context mContext;private boolean delFlag = false;private LayoutInflater mInflater;private static final int QUERY_DOWNLOAD_PROGRESS = 1 << 4;private static final int QUERY_DOWNLOAD_UNZIP = 1 << 2;private static final int DELETE_BOOK = 1 << 3;// 下载管理类private IwitDownloadManager manager;// 更新进度条进度private MyContentObserver mMyContentObserver;// 解压类FileManager mFileManager;// 是否有网络private int nativeOrLoad;private OnClickCloseChangListener mOnClickCloseChangListener;private String T = "BookAdapter";private FileUtils mFileUtils;private static final int MB = 1024 * 1024;// 接口 监听数据库public LibraryAdpter(Context context, List<Book> inbook, GridView mGridView) {mContext = context;infater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);books = inbook;manager = IwitDownloadManager.getInstance(App.ctx);// 内容观察数据库内容的mMyContentObserver = new MyContentObserver(App.ctx, manager,mOnContentListener);mGridView1 = mGridView;// 注册内容观察者App.ctx.getContentResolver().registerContentObserver(Downloads.Impl.CONTENT_URI, true, mMyContentObserver);mFileUtils = FileUtils.getInstance();mFileManager = FileManager.getInstance();// 第一次将数据库的数据初始化到list里面initFirstDataToBean();}@Overridepublic int getCount() {return books.size();}@Overridepublic Object getItem(int position) {return books.get(position);}@Overridepublic long getItemId(int position) {return 0;}@Overridepublic View getView(int position, View convertview, ViewGroup arg2) {View view = null;ViewHolder holder = null;if (convertview == null || convertview.getTag() == null) {view = infater.inflate(R.layout.library_list, null);holder = new ViewHolder(view);holder.setListern(position);view.setTag(holder);setParams(holder, view);} else {view = convertview;holder = (ViewHolder) convertview.getTag();}Book book = (Book) getItem(position);setCoverPic(position, holder);holder.progressBar.setProgress(book.getProgress());setDownloadIcon(holder, book);holder.bookName.setText(book.getBname());return view;}private OnContentListener mOnContentListener = new OnContentListener() {@Overridepublic void onChange(List<DownloadInfoBean> listDownloadInfoBean) {scanDownloadInfoBean(listDownloadInfoBean, false);handler.sendEmptyMessage(QUERY_DOWNLOAD_PROGRESS);}};/** * 接口 */private OnUnZipCompleteListener mOnUnZipCompleteListener = new OnUnZipCompleteListener() {@Overridepublic void onSuccess(boolean isComplete, String path) {Message msg = new Message();msg.what = QUERY_DOWNLOAD_UNZIP;msg.obj = path;handler.sendMessage(msg);}};private void setParams(ViewHolder holder, View view) {LayoutParams bookImg = (LayoutParams) holder.bookCoverPic.getLayoutParams();LayoutParams bookName = (LayoutParams) holder.bookName.getLayoutParams();LayoutParams progressBar = (LayoutParams) holder.progressBar.getLayoutParams();LayoutParams bookDownloadBn = (LayoutParams) holder.bookDownloadBn.getLayoutParams();LayoutParams bookDelBn = (LayoutParams) holder.bookDelBn.getLayoutParams();LayoutParams space = (LayoutParams) holder.space.getLayoutParams();int width;DisplayMetrics dm = view.getResources().getDisplayMetrics();width = dm.widthPixels / 4;bookImg.width = width;progressBar.width = width * 9 / 10;bookDownloadBn.width = width / 2;bookDownloadBn.height = bookDownloadBn.width;bookImg.height = 4 * bookImg.width / 3;bookName.width = width;bookDelBn.width = width / 5;bookDelBn.height = bookDelBn.width;space.height = bookImg.height / 9;holder.bookCoverPic.setLayoutParams(bookImg);holder.bookName.setLayoutParams(bookName);holder.progressBar.setLayoutParams(progressBar);holder.bookDownloadBn.setLayoutParams(bookDownloadBn);holder.bookDelBn.setLayoutParams(bookDelBn);holder.space.setLayoutParams(space);}/** * 扫描本地下载数据库 初始化数据 *  * @param listDownloadInfoBean * @param isFirstInit */private void scanDownloadInfoBean(List<DownloadInfoBean> listDownloadInfoBean, boolean isFirstInit) {String url;int status;long total_size;long current_size;int progress;// int[] deleteArrary = new int[50];String delString = "-1";for (DownloadInfoBean downloadInfoBean : listDownloadInfoBean) {url = downloadInfoBean.getDownload_uri();status = downloadInfoBean.getDownload_status();total_size = downloadInfoBean.getDownload_total_bytes();current_size = downloadInfoBean.getDownload_current_bytes();progress = getProgressValue(total_size, current_size);// 根据url 或者 downloadid 对比if (books != null && books.size() > 0) {for (int i = 0; i < books.size(); i++) {Book book = books.get(i);if (book != null) {if (url.equals(CommConst.SIT_ROOT_FILE_URL_OSS+ book.getBfname())) {book.setDownloadId(downloadInfoBean.getDownload_id());book.setProgress(progress);/** * 当book的状态为下载后的状态 就不需要改变他 isFirstInit 是第一次进入 初始化 */if (book.getStatus() != CommConst.STATUS_READ_BOOK&& book.getStatus() != CommConst.STATUS_READY) {if (status == CommConst.STATUS_READY) {book.setProgress(100);book.setStatus(status);if (isFirstInit) {// 第一次查询为 100 时候/** * 第一次进入判断是否是解压完毕 如果没有解压完毕 在解压一次 */// 如果存在解压的文件夹 不存在解压的文件包 则解压成功String pacpath = CommConst.ROOT_BOOK_PATH+ book.getBname() + ".zip";String dirpath = CommConst.ROOT_BOOK_PATH+ book.getBid();// 存在解压的文件包 重新解压 解压不完全 如果正在解压// 则不会重新创建解压线程if (!mFileUtils.isExsitDir(pacpath)) {if (mFileUtils.isExsitDir(dirpath)) {// BookDas.updateBookDownState(book.getBid(),1);book.setStatus(CommConst.STATUS_READ_BOOK);book.setDownloaded(CommConst.FLAG_DOWNLOAD_UNZIPED);} else {// 既没有文件夹 也没有压缩包就要自动删除所有信息String bookPath = Environment.getExternalStorageDirectory()+ CommConst.ROOT_BOOK_PATH+ book.getBid()+ "/book";manager.deleteDatabaseAndLocalFile(url,CommConst.PACKAGE_NAME);// 先删除数据库中的数据记录,再删除SD卡中本地文件mFileUtils.delFolder(bookPath);try {String sql = "update lw_book set downloaded = 0 where bid = ?";App.getDbUtil().cud(sql,book.getBid());} catch (IwitApiException e) {e.printStackTrace();}/* * try { * //WriteDas.deleteLession * (book.getBid()); } catch * (IwitApiException e) { // * TODO Auto-generated catch * block e.printStackTrace(); } */book.setStatus(0);book.setDownloaded(0);// 如果是本地就删除数据if (nativeOrLoad == 1) {// 再外面去删除 先记录delString = delString + ","+ i;}}} else {// 解压开始book.setStatus(CommConst.STATUS_UNZIPING);mFileManager.unZipFile(book.getBname() + ".zip",CommConst.ROOT_BOOK_PATH,CommConst.ROOT_BOOK_PATH+ book.getBid()+ "/",mOnUnZipCompleteListener);}} else {// 解压开始book.setStatus(CommConst.STATUS_UNZIPING);mFileManager.unZipFile(book.getBname() + ".zip",CommConst.ROOT_BOOK_PATH,CommConst.ROOT_BOOK_PATH+ book.getBid() + "/",mOnUnZipCompleteListener);}} else {book.setStatus(downloadInfoBean.getDownload_status());}}}}}}}if (!delString.equals("-1")) {Message msg = new Message();msg.what = DELETE_BOOK;msg.obj = delString;handler.sendMessage(msg);}}public void unregisterContentObserver() {App.ctx.getContentResolver().unregisterContentObserver(mMyContentObserver);}public int getProgressValue(long total_size, long current_size) {int progress = 0;progress = (int) (100 * current_size / total_size);return progress;}public void initFirstDataToBean() {List<DownloadInfoBean> listDownloadInfoBean = manager.queryDownloadInfoByPackageName(CommConst.PACKAGE_NAME);scanDownloadInfoBean(listDownloadInfoBean, true);handler.sendEmptyMessage(QUERY_DOWNLOAD_PROGRESS);}@SuppressLint("HandlerLeak")Handler handler = new Handler() {@Overridepublic void handleMessage(Message msg) {super.handleMessage(msg);switch (msg.what) {case QUERY_DOWNLOAD_PROGRESS:notifyDataSetChanged();break;case QUERY_DOWNLOAD_UNZIP:String path = (String) msg.obj;if (books != null) {for (Book book : books) {// 当url 一致的时候if ((CommConst.ROOT_BOOK_PATH + book.getBname() + ".zip").equals(path)) {book.setStatus(CommConst.STATUS_READ_BOOK);BookDas.updateBookDownState(book.getBid(), 1);book.setDownloaded(CommConst.FLAG_DOWNLOAD_UNZIPED);book.setProgress(100);Logger.e(T, "解压完：" + book.getStatus());}}}notifyDataSetChanged();break;case DELETE_BOOK:String delString = (String) msg.obj;String[] delArray = delString.split(",");for (int i = 0; i < delArray.length; i++) {if (!delArray[i].equals("-1")) {books.remove(Integer.parseInt(delArray[i]));}}notifyDataSetChanged();break;}}};private void setCoverPic(int post, ViewHolder vHolder) {if (!books.isEmpty() && books.get(post) != null) {String path = CommConst.SIT_ROOT_FILE_URL+ (String) books.get(post).getCoverpic();// vHolder.bookCoverPic.setBackgroundResource(R.drawable.write_cover_defalt);vHolder.bookCoverPic.setTag(path);if (mDownloader == null) {mDownloader = new AsyncImageDownloader(App.ctx);}mDownloader.imageDownload(path, vHolder.bookCoverPic,CommConst.ROOT_PIC_PATH, new OnImageDownload() {@Overridepublic void onDownloadSucc(Bitmap bitmap1,String c_url, ImageView imageView) {if (bitmap1 != null && !bitmap1.isRecycled()) {if (mGridView1 != null) {ImageView Image = (ImageView) mGridView1.findViewWithTag(c_url);if (Image != null && bitmap1 != null) {Image.setImageBitmap(bitmap1);Image.setTag("");}}}}});}}private void setDownloadIcon(ViewHolder holder, Book book) {int status = book.getStatus();// Logger.e(T, "bookstatus:" + status);switch (status) {case CommConst.FLAG_DOWNLOAD_NOT_BEGIN:// 未下载holder.bookDownloadBn.setBackgroundResource(R.drawable.library_bn_download);holder.progressBar.setVisibility(View.INVISIBLE);break;case CommConst.STATUS_DOWNLOADING://holder.bookDownloadBn.setBackgroundResource(R.drawable.library_bn_pause);holder.progressBar.setVisibility(View.VISIBLE);break;case CommConst.STATUS_PAUSE:holder.bookDownloadBn.setBackgroundResource(R.drawable.library_bn_wait);break;case CommConst.STATUS_READ_BOOK:holder.proDialog.setVisibility(View.GONE);holder.bookDownloadBn.setVisibility(View.VISIBLE);holder.bookDownloadBn.setBackgroundResource(R.drawable.library_bn_read);holder.progressBar.setVisibility(View.INVISIBLE);break;case CommConst.STATUS_MOUNT_BEGIN:holder.bookDownloadBn.setBackgroundResource(R.drawable.library_bn_wait);break;case CommConst.STATUS_MOUNT_END:holder.bookDownloadBn.setBackgroundResource(R.drawable.library_bn_wait);case CommConst.STATUS_UNZIPING:holder.bookDownloadBn.setVisibility(View.INVISIBLE);holder.proDialog.setVisibility(View.VISIBLE);}if (delFlag) {holder.bookDelBn.setVisibility(View.VISIBLE);} else {holder.bookDelBn.setVisibility(View.INVISIBLE);}notifyDataSetChanged();}private class ViewHolder {ImageView bookCoverPic, bookDownloadBn, bookDelBn;TextView bookName;ProgressBar progressBar;ProgressBar proDialog;View space;private ViewHolder(View view) {this.bookCoverPic = (ImageView) view.findViewById(R.id.book_img);this.bookName = (TextView) view.findViewById(R.id.book_name);this.bookDownloadBn = (ImageView) view.findViewById(R.id.book_download);this.progressBar = (ProgressBar) view.findViewById(R.id.progressbar_download);this.proDialog = (ProgressBar) view.findViewById(R.id.roundbar);this.bookDelBn = (ImageView) view.findViewById(R.id.book_del);this.space = (View) view.findViewById(R.id.space);}private void setListern(final int position) {final Book mBook = books.get(position);bookDownloadBn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {if (mBook != null) {if (NetWorkTools.getAPNType(mContext) == -1) {Toast.makeText(mContext,mContext.getString(R.string.write_no_net),1).show();switch (mBook.getStatus()) {case CommConst.STATUS_READ_BOOK:bookRead(mBook);break;}} else {switch (mBook.getStatus()) {case CommConst.STATUS_NO_DOWNLOAD:int count = manager.getDownloadingCount(CommConst.PACKAGE_NAME);String url = CommConst.SIT_ROOT_FILE_URL_OSS+ mBook.getBfname();// url:请求网络书籍地址if (mBook.getDownloadId() == 0) {// 下载的时候查看空间是否不足 如果不足提示下载失败if (count <= 3) {// if(WriteUtil.getPercentAvailableBlock()// <= 0.2){// Toast.makeText(mContext,// "内存空间不足,请清理内存", 1).show();// }else{mBook.setStatus(CommConst.STATUS_DOWNLOADING);manager.startDownload(url,mBook.getBname() + ".zip",CommConst.ROOT_BOOK_PATH);// }} else {Toast.makeText(mContext,mContext.getString(R.string.write_download_too_much),1).show();}} else {manager.resumeDownload(mBook.getDownloadId());}break;case CommConst.STATUS_DOWNLOADING:manager.pauseDownload(mBook.getDownloadId());break;case CommConst.STATUS_PAUSE:manager.resumeDownload(mBook.getDownloadId());break;case CommConst.STATUS_READ_BOOK:bookRead(mBook);break;}}}}});bookDelBn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {if (bookDelBn.getVisibility() == View.VISIBLE) {String bookPath = Environment.getExternalStorageDirectory()+ CommConst.ROOT_BOOK_PATH+ books.get(position).getBid() + "/book";books.get(position).setStatus(CommConst.FLAG_DOWNLOAD_NOT_BEGIN);String del_uri = CommConst.SIT_ROOT_FILE_URL_OSS+ books.get(position).getBfname();manager.deleteDatabaseAndLocalFile(del_uri,CommConst.PACKAGE_NAME);mFileUtils.delFolder(bookPath);clickDelkBook(position);}}});}}private void bookRead(Book book) {//音乐暂停MusicManager mMusicManager = MusicManager.getInstance(mContext);if (App.mMusicItemList != null && !App.mMusicItemList.isEmpty()) {mMusicManager.pauseMusic();}String mBookPath = Environment.getExternalStorageDirectory()+ CommConst.ROOT_BOOK_PATH + book.getBid() + "/book";String readpath = CommConst.ROOT_BOOK_PATH + book.getBid() + "/book";if (mFileUtils.isExsitDir(readpath)) {MoueeReader.show(mContext, mBookPath);} else {Toast.makeText(mContext, "这本书不存在,请删除书本后重新下载.", 1).show();}}public void setDelFlag(boolean b) {delFlag = b;this.notifyDataSetChanged();}private void clickDelkBook(int post) {if (delFlag) {try {App.getDbUtil().cud("update lw_book set downloaded = 0 where bid = ?",new Object[] { books.get(post).getBid() });} catch (IwitApiException e) {e.printStackTrace();}books.remove(post);}this.notifyDataSetChanged();}}

library_list.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:background="@drawable/bg_item_music_nomal"    android:layout_height="match_parent" >    <ImageView        android:id="@+id/book_img"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:scaleType="fitCenter" />    <ProgressBar        android:id="@+id/progressbar_download"        style="@style/progressBarLibrary"        android:layout_width="match_parent"        android:layout_height="10dp"        android:layout_below="@+id/book_img"        android:layout_centerHorizontal="true"        android:layout_marginTop="6dp"        android:max="100" />    <TextView        android:id="@+id/book_name"        android:layout_width="wrap_content"        android:layout_height="35dp"        android:layout_below="@+id/progressbar_download"        android:gravity="center_horizontal" />    <View        android:id="@+id/space"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/book_name" />    <ImageView        android:id="@+id/book_download"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignBottom="@+id/book_img"        android:layout_alignLeft="@+id/book_img"        android:background="@drawable/library_bn_download" />    <ProgressBar        android:id="@+id/roundbar"        style="?android:attr/progressBarStyleSmall"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerInParent="true"        android:visibility="gone" >    </ProgressBar>    <ImageView        android:id="@+id/book_del"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignRight="@+id/book_img"        android:layout_alignTop="@+id/book_img"        android:src="@drawable/library_bn_del" /></RelativeLayout>