TextViewColorUtil同一個Textview顯示不同顏色字體

import android.content.Context;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.TextUtils;
import android.text.style.CharacterStyle;
import android.text.style.ForegroundColorSpan;

/**
 * Created by wanghuanlong on 2019/6/28.
 */

public class TextViewColorUtil {
    private SpannableStringBuilder spBuilder;
    private String wholeStr, highlightStr;
    private Context mContext;
    private int color;
    private int start = 0, end = 0;


    /**
     * @param context
     * @param wholeStr     所有文字
     * @param highlightStr 改變顏色的文字
     * @param color        顏色
     */
    public TextViewColorUtil(Context context, String wholeStr, String highlightStr, int color) {
        this.mContext = context;
        this.wholeStr = wholeStr;
        this.highlightStr = highlightStr;
        this.color = color;


    }


    public TextViewColorUtil fillColor() {
        if (!TextUtils.isEmpty(wholeStr) && !TextUtils.isEmpty(highlightStr)) {
            if (wholeStr.contains(highlightStr)) {
            /*
             *  返回highlightStr字符串wholeStr字符串中第一次出現處的索引。
             */
                start = wholeStr.indexOf(highlightStr);
                end = start + highlightStr.length();
            } else {
                return null;
            }
        } else {
            return null;
        }
        spBuilder = new SpannableStringBuilder(wholeStr);
        color = mContext.getResources().getColor(color);
        CharacterStyle charaStyle = new ForegroundColorSpan(color);
        spBuilder.setSpan(charaStyle, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        return this;
    }


    public SpannableStringBuilder getResult() {
        if (spBuilder != null) {
            return spBuilder;
        }
        return null;
    }
}

 

 

//使用方法例如
   String str = "積分：";
        String strPoint = info.getMember_points() + "";
        str = str + strPoint;

        //設置
        TextViewColorUtil spanStr = new TextViewColorUtil(mActivity, str, strPoint, R.color.integral_text).fillColor();

        tvLoginAdvice.setText(spanStr.getResult());