Android Dropbox API文件下載

Question

我目前正在開發一款支持android dropbox api的android應用程序。我已經得到它的工作，以便它從android SD卡上的文件發送到Dropbox文件夾。然後，我稍後需要能夠下載此文件並再次將其保存到手機SD卡。

如何從Dropbox下載文件並將其保存到設備中，但很少或根本沒有關於android api的文檔。

感謝您提供的任何幫助。

Answer 1

private boolean downloadDropboxFile(String dbPath, File localFile) throws IOException{ 

    BufferedInputStream br = null; 
    BufferedOutputStream bw = null; 

    try { 
     if (!localFile.exists()) { 
      localFile.createNewFile(); //otherwise dropbox client will fail silently 
     } 

     FileDownload fd = api.getFileStream("dropbox", dbPath, null); 
     br = new BufferedInputStream(fd.is); 
     bw = new BufferedOutputStream(new FileOutputStream(localFile)); 

     byte[] buffer = new byte[4096]; 
     int read; 
     while (true) { 
     read = br.read(buffer); 
     if (read <= 0) { 
     break; 
     } 
     bw.write(buffer, 0, read); 
     } 
    } finally { 
     //in finally block: 
     if (bw != null) { 
      bw.close(); 
     } 
     if (br != null) { 
      br.close(); 
     } 
    } 

    return true; 
} 

來源：http://forums.dropbox.com/topic.php?id=23189&replies=5#post-159521

Answer 2

如果嘗試此鏈接，Download file from Dropbox and save it into SDCARD真正幫助全面通過下拉框來下載任何類型的文件

Answer 3

private boolean downloadDropboxFile(String dbPath, File localFile) throws IOException{ 

    BufferedInputStream br = null; 
    BufferedOutputStream bw = null; 

    try { 
     if (!localFile.exists()) { 
      localFile.createNewFile(); //otherwise dropbox client will fail silently 
     } 

     FileDownload fd = api.getFileStream("dropbox", dbPath, null); 
     br = new BufferedInputStream(fd.is); 
     bw = new BufferedOutputStream(new FileOutputStream(localFile)); 

     byte[] buffer = new byte[4096]; 
     int read; 
     while (true) { 
     read = br.read(buffer); 
     if (read <= 0) { 
     break; 
     } 
     bw.write(buffer, 0, read); 
     } 
    } finally { 
     //in finally block: 
     if (bw != null) { 
      bw.close(); 
     } 
     if (br != null) { 
      br.close(); 
     } 
    } 

    return true; 
} 

這將可能爲你工作。