按钮文件下载点击？ [英] File download on button click?

问题描述

所以，即时通讯新Android开发，我已持续约了很多搜索很长的路的一切都在一个试错的方式。我的问题是：我有一个按钮，我想链接到code的使出，将开始从一个特定的网站下载。我的code是如下：

So im new to android development and i have been going about everything in a trial and error manner with a lot of searching a long the way. My question is: I have a button that I want to link to a exert of code that will start a download from a particular site. my code is as follows.

    public void Download(View Button) {
    public void DownloadFromUrl(){
        try {

            URL url = new URL("www.generic-site.html");
            HttpURLConnection c = (HttpURLConnection) 
            url.openConnection();
            c.setRequestMethod("GET");
            c.setDoOutput(true);
            c.connect();

            String Path = Environment.getExternalStorageDirectory()
                +"/download/";
            Log.v("PortfolioManger", "PATH: "+Path);
            File file = new File(Path);
            file.mkdirs();
            FileOutputStream fos = new FileOutputStream("site.html");

            InputStream is = c.getInputStream();

            byte[] buffer = new byte[702];
            int len1 = 0;
            while ((len1 = is.read(buffer)) != -1) {
                fos.write(buffer, 0, len1);
            }
            fos.close();
            is.close();
        } catch (IOException e) {
            Log.d("PortfolioManger", "Error: "+e);
        }
        Log.v("PortfolioManger", "Check: ");
    }

我试图做的是使用公共无效下载（查看按钮）命令来启动下载，但即时得到错误：

What I was attempting to do was use the "public void Download(View Button)" command to launch the download, however im getting the errors:

Multiple markers at this line
- Syntax error, insert "EnumBody" to complete BlockStatements
- Syntax error on token "void", @ expected
- Syntax error, insert "enum Identifier" to complete 
 EnumHeaderName" error under "Public void DownloadFromUrl()

我知道它可能是一个愚蠢的问题，但任何人都可以提供一些线索？

I know its probably a silly question but can anyone shed some light?

推荐答案

您不能将一个函数另一个函数里面

You can't place one function inside another function

 public void Download(View Button) {
 public void DownloadFromUrl(){

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