码:

private void setSpans(Editable s, @ColorInt int backgroundColor) {

    BackgroundColorSpan[] spans = s.getSpans(0, s.length(), BackgroundColorSpan.class);
    String[] words;
    if (s.toString().endsWith(" ")) {
        words = (s.toString() + "X").split("\\s");
    } else {
        words = s.toString().split("\\s");
    }
    int completedWordsCount = words.length - 1;
    if (spans.length != completedWordsCount) {
        for (BackgroundColorSpan span : spans) {
            s.removeSpan(span);
        }

        int currentIndex = 0;
        for (int i = 0; i < words.length-1; i++) {
            s.setSpan(new CustomDrawble(Color.GRAY, Color.WHITE), currentIndex, currentIndex + words[i].length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
            currentIndex += words[i].length() + 1;
        } …