使用高亮文本Html.fromHtml [英] Highlighting text using Html.fromHtml

问题描述

我尝试添加背景颜色里面MultiAutoCompleteTextView字符串。

I am trying to add background color for the string inside MultiAutoCompleteTextView.

我重写在multipleAutocompletetextview replaceText方法，试图用这样的HTML代替charactersequence

I am overriding replaceText method in multipleAutocompletetextview, trying to replace charactersequence with html like this

@Override
protected void replaceText(CharSequence text) {

    // TODO Auto-generated method stub
    String styledText = "<font color='red'>"+text+"</font>.";
    super.replaceText(Html.fromHtml(styledText));
}

这是工作的罚款。我可以改变字体颜色。但我想添加背景颜色的字体。任何人都可以建议我，如何实现这一目标？

this is working fine. I Can change the font color. But i want to add background color for the font. Can anybody suggest me, how to achieve this?

（我们添加的标签，同时创造问题，samething我试图用MultiAutoCompleteTextView实现的方式。我想补充的背景所选字符串）。

( The way we are adding tags while creating question, samething i am trying to implement using MultiAutoCompleteTextView. I want to add background for the selected string. )

在此先感谢

推荐答案

Html.fromHtml 不支持设置背景颜色。

Html.fromHtml does not support setting the background color.

您将不得不采取通过Htm​​l.fromHtml返回的SpannedString并设置 BackgroundColorSpan 您要设置的背景颜色的文本。

You will either have to take the SpannedString returned by Html.fromHtml and set the BackgroundColorSpan to the text you want to set the background color of.

是这样的：

new SpannableString(styledText).setSpan(
    new BackgroundColorSpan( Color.YELLOW), 0, styledText.length(),
      Spanned.SPAN_INCLUSIVE_EXCLUSIVE);

另请参阅：
http://developer.android.com/reference/android/text/SpannableString.html ，
的http://developer.android.com/reference/android/text/style/package-summary.html

您可以同时通过自己的TagHandler到 Html.fromHtml（字符串源，Html.ImageGetter imageGetter，Html.TagHandler tagHandler）来支持更多的HTML标签。
请参见 http://developer.android.com/reference/android/text/ Html.TagHandler.html

You can as well pass your own TagHandler into Html.fromHtml(String source, Html.ImageGetter imageGetter, Html.TagHandler tagHandler) to support additional HTML tags. See http://developer.android.com/reference/android/text/Html.TagHandler.html

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