import org.jivesoftware.smackx.filetransfer.FileTransferListener; //导入依赖的package包/类
public void getFile(){
  	
  	manager.addFileTransferListener(new FileTransferListener() {
	
	@Override
	public void fileTransferRequest(FileTransferRequest request) {
		
		IncomingFileTransfer fileTransfer = request.accept();
		
		try {
			fileTransfer.recieveFile(new File(Environment.getExternalStorageDirectory().getAbsolutePath(), "�����ļ�"));
		} catch (XMPPException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
});
  }