可一个TextView是可选择的，并且包含链接？ [英] Can a TextView be selectable AND contain links?

问题描述

我碰到的一个问题，的TextView 。我可以把它可选择使用 setTextIsSelectable（真），但是当我能够通过链接 setMovementMethod被点击（LinkMovementMethod.getInstance（）），它不再是可选择的。

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，我说的不是做生可点击的链接，而是让实际的话可点击通过加载的TextView 使用类似HTML的标记的setText（Html.fromHtml（＆LT; A HREF =HTTP：//stackoverflow.com'>的Hello World＆LT; / A＆gt;中））。

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

我想它了。你需要继承LinkMovementMethod，并添加支持文本选择。这真是不幸的是，它不支持它本身。我只是推翻使用等效那些从<一个相关的方法href="http://grep$c$c.com/file/repository.grep$c$c.com/java/ext/com.google.android/android/4.2.2_r1/android/text/method/ArrowKeyMovementMethod.java?av=f">source code 为 ArrowKeyMovementMethod 。我想这是Android的开源的一个好处！

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，就像这样：

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

textView.setMovementMethod(new CustomMovementMethod());

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