安卓textview设置文本中个别文字的颜色

String text = "欢迎光临" + "xxxx" + "店铺,首次购物可享受100元减50活动";SpannableStringBuilder builder = new SpannableStringBuilder(text);ForegroundColorSpan redSpan = new ForegroundColorSpan(getResources().getColor(R.color.common_blue)); //设置截取的 文本的额颜色//从索引四开始 到店字这个索引builder.setSpan(redSpan, 4, text.indexOf("店"), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);texttv.setText(builder);