public class MyTextView extends TextView {
    public MyTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
    public void setSpecifiedTextsColor(String text, String specifiedTexts) {
        List<Integer> sTextsStartList = new ArrayList<>();

        int sTextLength = specifiedTexts.length();
        String temp = text;
        int lengthFront = 0;//記錄被找出後前面的欄位的長度
        int start = -1;
        do {
            start = temp.indexOf(specifiedTexts);

            if (start != -1) {
                start = start + lengthFront;
                sTextsStartList.add(start);
                lengthFront = start + sTextLength;
                temp = text.substring(lengthFront);
            }
        } while (start != -1);

        SpannableStringBuilder styledText = new SpannableStringBuilder(text);
        for (Integer i : sTextsStartList) {
            styledText.setSpan(
                    new ForegroundColorSpan(getResources().getColor(R.color.f2)),
                    i,
                    i + sTextLength,
                    Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }
        setText(styledText);
    }
}