TextView 可以选择并包含链接吗? [英] Can a TextView be selectable AND contain links?

问题描述

我遇到了 TextView 的问题.我可以使用 setTextIsSelectable(true) 使其可选择，但是当我通过 setMovementMethod(LinkMovementMethod.getInstance()) 启用要单击的链接时，它不再可选择.

I've run into a problem with TextView. I can make it selectable using setTextIsSelectable(true), but when I enable links to be clicked via setMovementMethod(LinkMovementMethod.getInstance()), it is no longer selectable.

请注意，我的意思不是让原始链接可点击，而是通过使用类似 setText(Html.fromHtml("<a href='http://stackoverflow.com'>Hello World!</a>")).

Please note, I don't mean making raw links clickable, but rather making actual words clickable by loading the TextView with HTML markup using something like setText(Html.fromHtml("<a href='http://stackoverflow.com'>Hello World!</a>")).

推荐答案

我想通了.您需要继承 LinkMovementMethod 并添加对文本选择的支持.很遗憾它本身不支持它.我只是使用 源代码.我想这是 Android 开源的好处之一！

I figured it out. You need to subclass LinkMovementMethod and add support for text selection. It's really unfortunate that it doesn't support it natively. I just overrode the relevant methods using the equivalent ones from the source code for ArrowKeyMovementMethod. I guess that's one benefit of Android being open source!

public class CustomMovementMethod extends LinkMovementMethod {
    @Override
    public boolean canSelectArbitrarily () {
        return true;
    }

    @Override
    public void initialize(TextView widget, Spannable text) {
        Selection.setSelection(text, text.length());
    }

    @Override
    public void onTakeFocus(TextView view, Spannable text, int dir) {
       if ((dir & (View.FOCUS_FORWARD | View.FOCUS_DOWN)) != 0) {
           if (view.getLayout() == null) {
               // This shouldn't be null, but do something sensible if it is.
               Selection.setSelection(text, text.length());
           }
       } else {
           Selection.setSelection(text, text.length());
       }
    }
}

要使用它，只需直接实例化它，如下所示:

To use it, just instantiate it directly, like so:

textView.setMovementMethod(new CustomMovementMethod());

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