在启用自动链接的textview中控制onclicklistener

Question

我正在使用TextView,我autolink="web"在XML文件中设置了属性.我也onClickListener为这个TextView 实现了.问题是,当TextView中的文本包含超链接时,如果我触摸该链接,链接将在浏览器中打开,但同时onClickListener也会触发.我不希望这样.

我想要的是,如果我触摸超链接,clickListener不应该触发.如果我触摸没有超链接的文本部分,它应该只会触发.有什么建议吗？

Answer 1

你可以使用Textview类的getSelectionStart()和getSelectionEnd()函数来解决这个问题,

tv.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        ClassroomLog.log(TAG, "Textview Click listener ");
        if (tv.getSelectionStart() == -1 && tv.getSelectionEnd() == -1) {
            //This condition will satisfy only when it is not an autolinked text
            //Fired only when you touch the part of the text that is not hyperlinked 
        }
    }
});

这可能是一个迟到的回复,但可能对那些正在寻找解决方案的人有用.

Answer 2

其中一篇@CommonsWare帖子有助于拦截自动链接OnClick事件.

private void fixTextView(TextView tv) {
    SpannableString current = (SpannableString) tv.getText();
    URLSpan[] spans =
            current.getSpans(0, current.length(), URLSpan.class);

    for (URLSpan span : spans) {
        int start = current.getSpanStart(span);
        int end = current.getSpanEnd(span);

        current.removeSpan(span);
        current.setSpan(new DefensiveURLSpan(span.getURL()), start, end,
                0);
    }
}

public static class DefensiveURLSpan extends URLSpan {
    private String mUrl;

    public DefensiveURLSpan(String url) {
        super(url);
        mUrl = url;
    }

    @Override
    public void onClick(View widget) {
        // openInWebView(widget.getContext(), mUrl); // intercept click event and do something.
        // super.onClick(widget); // or it will do as it is.
    }
}

上面的代码应用如下.它将遍历所有可链接的文本,并将单击事件替换为上面的事件处理程序.

fixTextView(textViewContent);

Answer 3

您可以尝试这个，而不是使用 onClickListener。

private void addLink() {
        tvLink = (TextView) findViewById(R.id.tvInfo2);

        String strURL = UrlLoader.getCodeUrl();

        // Make the url string clicable and take action in its onclick
        SpannableString spanUrl = SpannableString.valueOf(strURL);
        spanUrl.setSpan(new InternalURLSpan(new OnClickListener() {
            public void onClick(View v) {

                //Do Some action
            }
        }), 0, spanUrl.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        tvLink.setText(spanUrl);

        // We probably also want the user to jump to your link by moving the
        // focus (e.g. using the trackball), which we can do by setting the
        // proper movement method:
        MovementMethod m = tvLink.getMovementMethod();
        if ((m == null) || !(m instanceof LinkMovementMethod)) {
            if (tvLink.getLinksClickable()) {
                tvLink.setMovementMethod(LinkMovementMethod.getInstance());
            }
        }
    }

另外，在布局 XML 文件中，不要忘记添加

<TextView android:layout_width="wrap_content" android:linksClickable="true"
android:layout_height="wrap_content" android:id="@+id/tvInfo2" android:text="@string/url_link" />