안드로이드에서 epub의 webview에서 이미지가 표시되지 않음

Question

안드로이드에서 epub의 콘텐츠를 표시하려면 webview를 사용하고 있습니다.하지만 이제는 콘텐츠를 표시 할 수 있지만 이미지를 표시 할 수 없습니다.이 문제를 해결할 수있는 사람이 있습니까?

나 표시하는 데 사용되는 코드는 : 웹보기에 CSS 이미지를 표시하기 위해

public class MainActivity extends Activity { 
WebView webview; 
String line, line1 = "", finalstr = ""; 
int i = 0; 
Book book; 
String linez; 
/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    webview = (WebView) findViewById(R.id.tv); 
    AssetManager assetManager = getAssets(); 
    try { 
     // find InputStream for book 
     InputStream epubInputStream = assetManager 
       .open("widget.epub"); 

     // Load Book from inputStream 
     book = (new EpubReader()).readEpub(epubInputStream); 

     // Log the book's authors 
     Log.i("author", " : " + book.getMetadata().getAuthors()); 

     // Log the book's title 
     Log.i("title", " : " + book.getTitle()); 

     /* Log the book's coverimage property */ 
     Bitmap coverImage =BitmapFactory.decodeStream(book.getCoverImage().getInputStream()); 
     Log.i("epublib", "Coverimage is " + coverImage.getWidth() + " by " + coverImage.getHeight() + " pixels"); 

     // Log the tale of contents 

     logTableOfContents(book.getTableOfContents().getTocReferences(), 0); 
    } catch (IOException e) { 
     Log.e("epublib exception", e.getMessage()); 
    } 
    Spine spine = book.getSpine(); 
    List<SpineReference> spineList = spine.getSpineReferences() ; 
    int count = spineList.size(); 
    TextView tv=new TextView(getApplicationContext()); 
    tv.setText(Integer.toString(count)); 
    StringBuilder string = new StringBuilder(); 

    for (int i = 0; count > i; i++) { 
     Resource res = spine.getResource(i); 

     try { 
      InputStream is = res.getInputStream(); 
      BufferedReader reader = new BufferedReader(new InputStreamReader(is)); 
      try { 
       while ((line = reader.readLine()) != null) { 
        linez = string.append(line + "\n").toString(); 
       } 

      } catch (IOException e) {e.printStackTrace();} 

      //do something with stream 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 

    } 
    webview.loadData(linez, "text/html", "utf-8"); 
} 

@SuppressWarnings("unused") 
private void logTableOfContents(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()); 
     Log.i("TOC", tocString.toString()); 

     try { 
      InputStream is = tocReference.getResource().getInputStream(); 
      BufferedReader r = new BufferedReader(new InputStreamReader(is)); 

      while ((line = r.readLine()) != null) { 

       Log.v("line" + i, Html.fromHtml(line).toString()); 
       line1 = line1.concat(Html.fromHtml(line).toString()); 
      } 
      finalstr = finalstr.concat("\n").concat(line1); 

      i++; 
     } catch (IOException e) { 

     } 

     logTableOfContents(tocReference.getChildren(), depth + 1); 
    } 

    webview.loadDataWithBaseURL("", finalstr, "text/html", "UTF-8", ""); 
} 
} 

Answer 1

이다. 각각의 디렉토리 sdcard 위치에 CSS와 이미지를 다운로드해야합니다. 어떤 코드는 아래 코드와 같습니다.

private void DownloadResource(String directory) { 
    try { 
     nl.siegmann.epublib.domain.Resources rst = book.getResources(); 
     Collection<Resource> clrst = rst.getAll(); 
     Iterator<Resource> itr = clrst.iterator(); 
     Log.d("Downlod path", directory); 
     while (itr.hasNext()) { 
      Resource rs = itr.next(); 
      if ((rs.getMediaType() == MediatypeService.JPG) || (rs.getMediaType() == MediatypeService.PNG) || (rs.getMediaType() == MediatypeService.GIF) 
        || (rs.getMediaType() == MediatypeService.CSS)) { 
       File oppath1 = new File(directory + File.separator + rs.getHref()); 
       oppath1.getParentFile().mkdirs(); 

       Log.d("Resource Name - ", rs.getHref()); 
       oppath1.createNewFile(); 
       Log.d("Oppath - ", oppath1.getAbsolutePath()); 

       Log.d("File Checking - ", "Exists - " + oppath1.exists() + " & Write - " + oppath1.canWrite()); 
       FileOutputStream fos1 = new FileOutputStream(oppath1); 
       fos1.write(rs.getData()); 
       fos1.close(); 

      } 

     } 
    } catch (IOException e) { 
     Log.e("error", e.getMessage()); 
    } 
}