Renderizar archivos epub en android

Question

Tengo un archivo epub. Necesito descomprimir y analizar el archivo epub y presentarlo en Webview. ¿Hay algún tutorial paso a paso en alguna parte?

Answer 1

1. Visita this site y descarga los dos archivos jar mencionados en esa página.
2. importación esas bibliotecas a su proyecto androide
3. que implementa esta tarea mediante dos actividades: 1.
   ) EpubReaderActivity - esta actividad se mostrará una vista de lista de la Tabla de Contenidos
   2.) ContentViewActivity - esto mostrará el capítulo seleccionado.

EpubReaderActivity.java

public class EpubReaderActivity extends ListActivity 
{ 

private LayoutInflater inflater; 
private List<RowData> contentDetails; 
public static final String BOOK_NAME = "books/wodehouse.epub"; 

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    inflater = (LayoutInflater) getSystemService(Activity.LAYOUT_INFLATER_SERVICE); 
    contentDetails = new ArrayList<RowData>(); 
    AssetManager assetManager = getAssets(); 
    try { 
     InputStream epubInputStream = assetManager.open(BOOK_NAME); 
     Book book = (new EpubReader()).readEpub(epubInputStream); 
     logContentsTable(book.getTableOfContents().getTocReferences(), 0); 
    } catch (IOException e) { 
     Log.e("epublib", e.getMessage()); 
    } 

    CustomAdapter adapter = new CustomAdapter(this, R.layout.list, 
      R.id.title, contentDetails); 
    setListAdapter(adapter); 
    getListView().setTextFilterEnabled(true); 
} 

private class CustomAdapter extends ArrayAdapter<RowData>{ 

    public CustomAdapter(Context context, int resource, 
      int textViewResourceId, List<RowData> objects) { 
     super(context, resource, textViewResourceId, objects); 
    } 

    private class ViewHolder{ 
     private View row; 
     private TextView titleHolder = null; 

     public ViewHolder(View row) { 
      super(); 
      this.row = row; 
     } 

     public TextView getTitle() { 
      if(null == titleHolder) 
       titleHolder = (TextView) row.findViewById(R.id.title); 
      return titleHolder; 
     } 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     ViewHolder holder = null; 
     TextView title = null; 
     RowData rowData = getItem(position); 
     if(null == convertView){ 
      convertView = inflater.inflate(R.layout.list, null); 
      holder = new ViewHolder(convertView); 
      convertView.setTag(holder); 
     } 
     holder = (ViewHolder) convertView.getTag(); 
     title = holder.getTitle(); 
     title.setText(rowData.getTitle()); 
     return convertView; 
    } 

} 

private void logContentsTable(List<TOCReference> tocReferences, int depth) { 
    if (tocReferences == null) { 
     return; 
    } 
    for (TOCReference tocReference:tocReferences) { 
     StringBuilder tocString = new StringBuilder(); 
     for (int i = 0; i < depth; i++) { 
      tocString.append("\t"); 
     } 
     tocString.append(tocReference.getTitle()); 
     RowData row = new RowData(); 
     row.setTitle(tocString.toString()); 
     row.setResource(tocReference.getResource()); 
     contentDetails.add(row); 
     logContentsTable(tocReference.getChildren(), depth + 1); 
    } 
} 

private class RowData{ 
    private String title; 
    private Resource resource; 

    public RowData() { 
     super(); 
    } 

    public String getTitle() { 
     return title; 
    } 

    public Resource getResource() { 
     return resource; 
    } 

    public void setTitle(String title) { 
     this.title = title; 
    } 

    public void setResource(Resource resource) { 
     this.resource = resource; 
    } 

} 



@Override 
protected void onListItemClick(ListView l, View v, int position, long id) { 
    super.onListItemClick(l, v, position, id); 
    RowData rowData = contentDetails.get(position); 
    Intent intent = new Intent(MicroEpubReaderActivity.this, ContentViewActivity.class); 
    intent.putExtra("display", new String(rowData.getResource().getData())); 
    startActivity(intent); 

} 

} 

---

ContentViewActivity.java

public class ContentViewActivity extends Activity { 

WebView webView; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.content); 

    webView = (WebView) findViewById(R.id.webview); 
    webView.getSettings().setJavaScriptEnabled(true); 

    String displayString = getIntent().getExtras().getString("display"); 
    if(displayString != null) 
     webView.loadData(displayString, "text/html", "utf-8"); 
} 
} 

Answer 2

Si desea utilizar el escenario vista web para la representación epub simplemente pasar el epub directamente. ... El navegador del kit web nativo de Android admite casi t todos los formatos para renderizar.

var stageWebView:StageWebView = new StageWebView; 
stageWebView.stage = stage; 
stageWebView.viewPort = new Rectangle(0, 0, stage.stageWidth, stage.stageHeight-100); 
stageWebView.loadURL("http://localhost/eboard.pdf"); // use any path 

usted no requiere ningún zip/descomprimir o analizar .... pero en caso de que no van a la página we entonces puede que tenga que ...

Answer 3

<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" 
tools:context=".ListActivity" > 

<ListView 
    android:id="@android:id/list" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" > 
</ListView> 
<TextView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/title" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:padding="10dip" 
    android:textSize="16dip" 
    android:textStyle="bold" > 
</TextView> 

principal .xml usar esto con la respuesta de pkamalaruban