Android Dropbox API文件下载

Question

我目前正在开发一款支持android dropbox api的android应用程序。我已经得到它的工作，以便它从android SD卡上的文件发送到Dropbox文件夹。然后，我稍后需要能够下载此文件并再次将其保存到手机SD卡。

如何从Dropbox下载文件并将其保存到设备中，但很少或根本没有关于android api的文档。

感谢您提供的任何帮助。

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; 
} 

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

Answer 2

如果尝试此链接，Download file from Dropbox and save it into SDCARD真正帮助全面通过下拉框来下载任何类型的文件

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; 
} 

这将可能为你工作。