我现在感到非常沮丧..我想从Dropbox下载文件并将该文件保存到SDCARD中..我得到的代码如下:
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;
这里在br=new BufferedInputStream一行出现了错误,请帮忙解决。
fd.is != null
吗? - Andrey Starodubtsev