Question

当我在搜索用Jsoup解析的html中的链接时，我正在搜索自己的活动，我偶然发现LinkEnabledTextView 在演示中，它是为字符串实现的，但在我的情况下，我从Web获取文本并在TextView中显示它。

在accepted answer in this question中，它已应用于listitem。我按照两个链接中的说明进行操作但是我有将问题应用到我的场景中。

NewsDetails类

public class NewsDetails extends AppCompatActivity implements TextLinkClickListener{


    TextView newsTitle;
    LinkEnabledTextView newsContent;

    private String news_content;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_news_details);

        showDialog();

        newsTitle = (TextView) findViewById(R.id.dnews_title);
        newsAuthorDate = (TextView) findViewById(R.id.author_date);
        newsContent = (LinkEnabledTextView) findViewById(R.id.dnews_content);


        check = new LinkEnabledTextView(this, null);
        check.setOnTextLinkListener(this);
        check.gatherLinksForText(String.valueOf(newsContent));
        check.setTextColor(Color.BLUE);
        check.setLinkTextColor(Color.RED);


        MovementMethod movementMethod = check.getMovementMethod();
        if ((movementMethod == null) || !(movementMethod instanceof LinkMovementMethod)) {
            if (check.getLinksClickable()) {
                check.setMovementMethod(LinkMovementMethod.getInstance());
            }
        }
       //Skipped unecassry codes
    }

    private void showDialog() {
        internetDialog = new AlertDialog.Builder(NewsDetails.this)
                ...
    }

    private void loadNews() {
        Log.d(TAG, "loadNews called");

        final ProgressBar progressBar;
        progressBar = (ProgressBar) findViewById(R.id.progress_circle);
        progressBar.setVisibility(View.VISIBLE);


        String news_id = getIntent().getStringExtra("NewsId");
        Log.d(TAG, "You clicked news id " + news_id);

        StringRequest stringRequest = new StringRequest(news_id,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        //Log.d("Debug", response.toString());
                        if (progressBar != null) {
                            progressBar.setVisibility(View.GONE);
                        }
                        parseHtml(response);
                        newsData = response;
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        VolleyLog.d("", "Error: " + error.getMessage());

                        if (progressBar != null) {
                            progressBar.setVisibility(View.GONE);
                        }

                        final  AlertDialog.Builder sthWrongAlert = new AlertDialog.Builder(NewsDetails.this);
                        ...
                        sthWrongAlert.show();
                    }
                });

        //Creating requestqueue
        RequestQueue requestQueue = Volley.newRequestQueue(this);

        //Adding request queue
        requestQueue.add(stringRequest);

    }

    private void parseHtml(String response) {
        Log.d(TAG, "parsinghtml");
        Document document = Jsoup.parse(response);
        String news_title = document.select("h1.entry-title").first().text();
        news_content = document.select("div.entry-content").first().html();

        newsTitle.setText(news_title);
       Spanned spanned = Html.fromHtml(news_content, new UILImageGetter(newsContent, this), null );
        newsContent.setText(spanned);

        //Unhiding views
        newsTitle.setVisibility(View.VISIBLE);
        newsContent.setVisibility(View.VISIBLE); 
    }


}

我试图将String.valueOf(newsContent)传递给check.gatherLinksForText，但它无效。我也尝试了check.gatherLinksForText(news_content)，但它会抛出NPE。

请问我应该通过check.gatherLinksForText()使其正常工作的正确参数是什么？

我应该通过什么参数check.gatherLinksForText（）？

0 个答案: