我的 Spannable 不会改变重复字符的颜色

Question

我的 Spannable 不会更改重复字符的颜色。例如，我有两个相同的字符“$”美元符号，第一个更改为蓝色，但第二个不是。我正在输入我的文字不会改变的是字符串数组。当我调试时，我可以在适当的索引上看到其中的所有文本。

 String secondRowString = "Based on your current monthly savings of" + " $" + FormattedValue.formattedValue(model.getRetirementDdata().getCombinedCurrentMonthlySavings())
            + " at a rate of return of " + FormattedValue.formattedValue(model.getRetirementDdata().getAverageRateOfReturn()) + "% "
            + " , you are on track to have " + "$" + FormattedValue.formattedValue(model.getRetirementDdata().getHowMuchIWillHave())
            + " in total savings by " + model.getRetirementDdata().getRetirementMembersList().get(0).getName()
            + " age " + model.getRetirementDdata().getRetirementMembersList().get(0).getAgeOfRetirement();

    SpannableString strThirdRow = new SpannableString(secondRowString);
    SpannableTextUtils.setColorForPath(strThirdRow, new String[]{"$"
            , FormattedValue.formattedValue(model.getRetirementDdata().getCombinedCurrentMonthlySavings())
            , FormattedValue.formattedValue(model.getRetirementDdata().getAverageRateOfReturn()), "%", "$"
            , FormattedValue.formattedValue(model.getRetirementDdata().getHowMuchIWillHave())
            , String.valueOf(model.getRetirementDdata().getRetirementMembersList().get(0).getAgeOfRetirement())}, ContextCompat.getColor(context, R.color.debt_payments));
    binding.secondTV.setText(strThirdRow);

和我的 SpannableString.setColorsForPath()

 public static void setColorForPath(Spannable spannable, String[] paths, int color) {
    for (String path : paths) {
        int indexOfPath = spannable.toString().indexOf(path);
        if (indexOfPath == -1) {
            continue;
        }
        spannable.setSpan(new ForegroundColorSpan(color), indexOfPath,
                indexOfPath + path.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        spannable.setSpan(new android.text.style.StyleSpan(android.graphics.Typeface.BOLD), indexOfPath,
                indexOfPath + path.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    }
}

Answer 1

这是您代码中的逻辑错误 indexOf 每次都会 return 第一次出现。虽然您需要在 String 中找到所有出现的单词。这可以通过多种方式完成。基本上你需要解决问题 Find Indexes of all occurrences of a word in a string .

您可以使用以下方法。

public static void setColorForPath(Spannable spannable, String[] paths, int color) {
    for (String path : paths) {
        int indexOfPath = spannable.toString().indexOf(path);
        while(indexOfPath >= 0) {
            spannable.setSpan(new ForegroundColorSpan(color), indexOfPath,
                    indexOfPath + path.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            spannable.setSpan(new android.text.style.StyleSpan(android.graphics.Typeface.BOLD), indexOfPath,
                    indexOfPath + path.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            indexOfPath = spannable.toString().indexOf(path, indexOfPath+1);
        }
    }
}

我的 Spannable 不会改变重复字符的颜色

My Spannable won't change color of repetitive characters

java

android

spannablestring