【分享】代码编程习惯：在多参数的方法的情况下需要对方法整理-即最多参数的方法为主要实现

背景

这是一个编写代码的习惯。在多参数同样功能的方法会推荐使用在最多参数的方法内实现，详见代码解析；

最开始的代码

对textView 带有不同颜色和图片操作。

import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.style.ForegroundColorSpan;
import android.text.style.ImageSpan;

/*** * 该工具类对TextView 的文本颜色进行设置： * 目前是前半部分以黄色为主，后半部分的主体Text以#FFFFFF为主 * written by Chris on 2022-07-14 */
public class TextColorHandler {
    
    static String colorString = "#FFB763"; // 换色
    static String defaultColorString = "#FFFFFF";

    public static  SpannableStringBuilder handlerMessage(String front, String content,String splitInfo,String color) {
    
        colorString = color;
        return  handlerMessage(front,content,splitInfo);
    };

    public static  SpannableStringBuilder handlerMessage(String front, String content,String splitInfo) {
    
        // 文本颜色区分
        SpannableStringBuilder stringBuilder = new SpannableStringBuilder();
        ForegroundColorSpan frontColor = new ForegroundColorSpan(Color.parseColor("#FFB763"));
        ForegroundColorSpan backColor = new ForegroundColorSpan(Color.parseColor("#FFFFFF"));
        ForegroundColorSpan frontColor = new ForegroundColorSpan(Color.parseColor(colorString));
        ForegroundColorSpan backColor = new ForegroundColorSpan(Color.parseColor(defaultColorString));
        int length = stringBuilder.length();
        stringBuilder.append(front + splitInfo);
        stringBuilder.setSpan(frontColor, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        length = stringBuilder.length();
        stringBuilder.append(content);
        stringBuilder.setSpan(backColor, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        colorString = "#FFB763";// 记得还原回去
        return stringBuilder;
    }

    public static  SpannableStringBuilder handleMessageWithPicture(String front, String content,Drawable drawable,String color) {
    
        colorString = color;
        return  handleMessageWithPicture(front,content,drawable);
    };

    // 在文本中添加图片操作
    public static  SpannableStringBuilder handleMessageWithPicture(String front, String content, Drawable drawable) {
    
        // 文本颜色区分
        SpannableStringBuilder stringBuilder = new SpannableStringBuilder();
        ForegroundColorSpan frontColor = new ForegroundColorSpan(Color.parseColor("#FFB763"));
        ForegroundColorSpan backColor = new ForegroundColorSpan(Color.parseColor("#FFFFFF"));
        ForegroundColorSpan frontColor = new ForegroundColorSpan(Color.parseColor(colorString));
        ForegroundColorSpan backColor = new ForegroundColorSpan(Color.parseColor(defaultColorString));
        int length = stringBuilder.length();
        stringBuilder.append(front+" ");
        stringBuilder.setSpan(frontColor, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        length = stringBuilder.length();
        //添加图片
        drawable.setBounds(drawable.getBounds().left, drawable.getBounds().top, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
        ImageSpan span = new ImageSpan(drawable, ImageSpan.ALIGN_BASELINE);
        stringBuilder.append(" ");//放置图片
        stringBuilder.setSpan(span, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        stringBuilder.append(" "+content);
        stringBuilder.setSpan(backColor, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        colorString = "#FFB763";// 记得还原回去
        return stringBuilder;
    }


}

优化后的代码

package im.zego.libimchat.view.utils;

import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.style.ForegroundColorSpan;
import android.text.style.ImageSpan;

/*** * 该工具类对TextView 的文本颜色进行设置： * 目前是前半部分以黄色为主，后半部分的主体Text以#FFFFFF为主 * written by Chris on 2022-07-14 */
public class TextColorHandler {
    
    static int colorString = Color.parseColor("#FFB763"); // 换色 为黄色
    static int defaultColorString = Color.parseColor("#FFFFFF");

    public static  SpannableStringBuilder handlerMessage(String front, String content,String splitInfo,int color) {
    
        // 文本颜色区分
        SpannableStringBuilder stringBuilder = new SpannableStringBuilder();
        ForegroundColorSpan frontColor = new ForegroundColorSpan(color);
        ForegroundColorSpan backColor = new ForegroundColorSpan(defaultColorString);
        int length = stringBuilder.length();
        stringBuilder.append(front + splitInfo);
        stringBuilder.setSpan(frontColor, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        length = stringBuilder.length();
        stringBuilder.append(content);
        stringBuilder.setSpan(backColor, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        return stringBuilder;
    }

    public static  SpannableStringBuilder handlerMessage(String front, String content,String splitInfo) {
    
        return handlerMessage(front, content, splitInfo, colorString);
    }

    public static  SpannableStringBuilder handleMessageWithPicture(String front, String content,Drawable drawable,int color) {
    
        // 文本颜色区分
        SpannableStringBuilder stringBuilder = new SpannableStringBuilder();
        ForegroundColorSpan frontColor = new ForegroundColorSpan(color);
        ForegroundColorSpan backColor = new ForegroundColorSpan(defaultColorString);
        int length = stringBuilder.length();
        stringBuilder.append(front+" ");
        stringBuilder.setSpan(frontColor, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        length = stringBuilder.length();
        //添加图片
        drawable.setBounds(drawable.getBounds().left, drawable.getBounds().top, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
        ImageSpan span = new ImageSpan(drawable, ImageSpan.ALIGN_BASELINE);
        stringBuilder.append(" ");//放置图片
        stringBuilder.setSpan(span, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        stringBuilder.append(" "+content);
        stringBuilder.setSpan(backColor, length, stringBuilder.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
        return  stringBuilder;
    };

    // 在文本中添加图片操作
    public static  SpannableStringBuilder handleMessageWithPicture(String front, String content, Drawable drawable) {
    
        return handleMessageWithPicture(front, content, drawable,colorString);
    }


}

关键：

 public static  SpannableStringBuilder handleMessageWithPicture(String front, String content, Drawable drawable) {
    
        return handleMessageWithPicture(front, content, drawable,colorString);
    }

整合到一块，代码就比较清晰。