一个TextView使用不同的颜色:
textview中首先需要已经有内容了
public static void ColorFormatTextView(TextView tv,int color,String textStr){if (TextUtils.isEmpty(textStr) || tv == null|| TextUtils.isEmpty(tv.getText())) {return;}String showString = tv.getText().toString();int startIndex = showString.indexOf(textStr);if (startIndex < 0) {return;}ForegroundColorSpan style = new ForegroundColorSpan(color);SpannableStringBuilder formatted = new SpannableStringBuilder(showString);formatted.setSpan(style, startIndex, startIndex + textStr.length(),Spanned.SPAN_EXCLUSIVE_INCLUSIVE);tv.setText(formatted);}