Android Spanable 文本保存/存储问题 [英] Android Spannable text save/store issue

问题描述

我有一个编辑文本，它有多个彩色文本，如下面的代码.有没有办法存储文本和颜色并再次显示它们?我曾经使用 SharedPreference 来存储字符串整数等，但这不适用于 Spannables.

I got a edittext and it has multiple coloured text like that code below. Is there any way to store text and colours and show them again? I used to use SharedPreference to store strings integers etc. but this isn`t working for Spannables.

Spannable span1 = new SpannableString("this");
Spannable span2 = new SpannableString("is");
Spannable span3 = new SpannableString("text");
span1.setSpan(new ForegroundColorSpan(Color.parseColor("#292929")), 0, span1.length(),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
span2.setSpan(new ForegroundColorSpan(Color.parseColor("#2980b9")), 0, span2.length(),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
span3.setSpan(new ForegroundColorSpan(Color.parseColor("#FFFFFF")), 0, span3.length(),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

edittext.setText(TextUtils.concat(span1, span2, span3));

推荐答案

你可以使用 Html.toHtml() 得到 Spannable 的 HTML 表示，然后转换它使用 Html.fromHtml() 返回.但是，您需要对此进行彻底测试，因为并非所有格式都能在往返过程中保留下来.

You can use Html.toHtml() to get an HTML representation of the Spannable, then convert it back using Html.fromHtml(). However, you will want to test this thoroughly, as not every bit of formatting survives the round-trip.

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