开源项目实现多线程下载 (xutils)

　public void download(View v){
        EditText et_url = (EditText) findViewById(R.id.et_url);
        String url = et_url.getText().toString().trim();
        //1.创建httpUtils对象
        HttpUtils httpUtils = new HttpUtils();
        //2.调用download方法  url:下载的地址  target：下载的目录   callback：回调 
        httpUtils.download(url, "/sdcard/feiqiu/feiq.exe", new RequestCallBack<File>() {
            @Override
            public void onLoading(long total, long current, boolean isUploading) {
                System.out.println("total:"+total+";current:"+current);
                super.onLoading(total, current, isUploading);
            }
            @Override
            public void onSuccess(ResponseInfo<File> responseInfo) {
                System.out.println(responseInfo.result);
            }
            @Override
            public void onFailure(HttpException error, String msg) {
                // TODO Auto-generated method stub
                
            }
        });
    }