我有一个新闻阅读器（使用rss），它的工作也一样，现在我想点击新闻后打开导航器，但我不知道如何获得链接（我只知道我必须使用getLink（），但我不知道在哪里）：
Actualites.java
public class Actualites extends android.support.v4.app.Fragment{
AsyncTask<Void, Void, List> a = null;
NewsAdapter adapter = null;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
View view = inflater.inflate(R.layout.activity_actualites, container, false);
ListView list = (ListView) view.findViewById(R.id.listView1);
adapter = new NewsAdapter(getActivity(), new ArrayList<News>());
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
startActivity(new Intent(Intent.ACTION_VIEW).setData(Uri.parse("http://www.solutis.fr")));
}
});
a = new AsyncTask<Void, Void, List>() {
@Override
protected List doInBackground(Void... params) {
ArrayList<News> res = new ArrayList<News>();
try {
URL url = new URL("http://www.solutis.fr/actualites-rachat-credit,rss.html?format=feed");
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
RssParser parser = new RssParser();
try {
return parser.parse(urlConnection.getInputStream());
} catch (XmlPullParserException e) {
e.printStackTrace();
}
} catch (IOException e) {
e.printStackTrace();
}
return res;
}
@Override
protected void onPostExecute(List result) {
adapter.update(result);
}
};
a.execute();
TextView textView =(TextView)getActivity().findViewById(R.id.main_toolbar_title);
textView.setText(getString(R.string.title_actu));
textView.setTypeface(Typeface.createFromAsset(getActivity().getAssets(), "fonts/GothamBook.ttf"));
return view;
}
}
NewsAdapter.java
public class NewsAdapter extends BaseAdapter {
List<News> news;
Context context;
public NewsAdapter(Context context, List<News> news) {
this.news = news;
this.context = context;
}
public void update(List<News> news) {
this.news = news;
notifyDataSetChanged();
}
@Override
public int getCount() {
return news.size();
}
@Override
public Object getItem(int arg0) {
return news.get(arg0);
}
@Override
public long getItemId(int arg0) {
return arg0;
}
@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
LayoutInflater li = LayoutInflater.from(context);
View v = li.inflate(R.layout.three_line_list_item, null);
TextView tv1 = (TextView)v.findViewById(android.R.id.text1);
tv1.setTypeface(Typeface.createFromAsset(context.getAssets(), "fonts/GothamBold.ttf"));
tv1.setTextSize(15);
TextView tv3 = (TextView)v.findViewById(android.R.id.title);
tv3.setTextColor(Color.parseColor("#2B729F"));
tv3.setTextSize(13);
tv3.setTypeface(Typeface.createFromAsset(context.getAssets(), "fonts/GothamBook.ttf"));
TextView tv2 = (TextView)v.findViewById(android.R.id.text2);
tv2.setTypeface(Typeface.createFromAsset(context.getAssets(), "fonts/GothamBook.ttf"));
tv2.setTextSize(14);
News n = (News)getItem(arg0);
tv1.setText(n.getTitle());
String pubDate = Html.fromHtml(n.getPubDate()).toString().replace((char) 65532, (char) 32).trim();
tv3.setText(pubDate);
String content = Html.fromHtml(n.getContent()).toString().replace((char) 65532, (char) 32).trim();
tv2.setText(content);
return v;
}
}
RssParser.java
public class RssParser {
private String readText(XmlPullParser parser) throws IOException, XmlPullParserException {
String result = "";
if (parser.next() == XmlPullParser.TEXT) {
result = parser.getText();
parser.nextTag();
}
return result;
}
private static final String ns = null;
private void skip(XmlPullParser parser) throws XmlPullParserException, IOException {
if (parser.getEventType() != XmlPullParser.START_TAG) {
throw new IllegalStateException();
}
int depth = 1;
while (depth != 0) {
switch (parser.next()) {
case XmlPullParser.END_TAG:
depth--;
break;
case XmlPullParser.START_TAG:
depth++;
break;
}
}
}
public ArrayList<News> parse(InputStream in) throws XmlPullParserException, IOException {
XmlPullParser parser = Xml.newPullParser();
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
parser.setInput(in, null);
parser.nextTag();
ArrayList<News> entries = new ArrayList<News>();
parser.require(XmlPullParser.START_TAG, ns, "rss");
parser.nextTag();
parser.require(XmlPullParser.START_TAG, ns, "channel");
while (parser.next() != XmlPullParser.END_TAG) {
if (parser.getEventType() != XmlPullParser.START_TAG) {
continue;
}
String name = parser.getName();
if (name.equals("item")) {
String title = "";
String link = "";
String pubDate = "";
String content = "";
while (parser.next() != XmlPullParser.END_TAG) {
if (parser.getEventType() != XmlPullParser.START_TAG) {
continue;
}
name = parser.getName();
if (name.equals("title")) {
title = readText(parser);
} else if (name.equals("link")) {
link = readText(parser);
} else if (name.equals("pubDate")) {
pubDate = readText(parser);
} else if (name.equals("description")) {
content = readText(parser);
} else
skip(parser);
}
entries.add(new News(title, pubDate, content));
} else
skip(parser);
}
return entries;
}
}
News.java
public class News {
private String title;
private String content;
private String pubDate;
private String link;
public News(String title, String pubDate, String content) {
this.title = title;
this.content = content;
this.pubDate = pubDate;
}
public News(String link, String title, String pubDate, String content) {
this.link = link;
this.title = title;
this.content = content;
this.pubDate = pubDate;
}
public String getTitle() {
return (title);
}
public String getContent() {
return (content);
}
public String getPubDate(){
return (pubDate);
}
public String getLink(){
return (link);
}
}
我必须更改public void onItemClick（），我只是放了一个网址，但我必须得到新闻的网址，但我不知道该怎么做。有人可以帮帮我吗？
答案 0 :(得分：0)
您可以使用onItemClick中的position参数从适配器获取新闻对象。我没有测试过代码，但它会像下面那样;
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
News news = (News) adapter.getItem(position)
startActivity(new Intent(Intent.ACTION_VIEW).setData(Uri.parse(news.getLink())));
}