直接用webview加载：

package com.example.testcsdnproject;

import androidx.appcompat.app.AppCompatActivity;

import android.annotation.SuppressLint;
import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

public class RichTextViewActivity extends AppCompatActivity {

    private WebView webview_intro;      //webview加载富文本
    //网页加载富文本的限制标签
    private String CSS_STYLE =" <style> p {color:#FFFFFF;} a {color:#FFFFFF;}  img{max-width:100% !important;height:auto !important}video{max-width:100% !important;height:auto !important}  p span{color:#FFFFFF !important; background-color:#1A1A1A !important; font-size:20px;}</style>";
//    private String CSS_Content = "";
    //测试数据
        private String CSS_Content = "<h3><span style=\"color: rgb(245, 245, 245);\">hello world</span></h3><p><span style=\"color: rgb(255, 251, 143);\">阿大声道啊大师大的撒打算的撒打发的股份的回复的后代鼓捣鼓捣 阿打算打打打算的啊大大十多万鹅鹅鹅我热潮中在大大</span></p><p><br></p><p><br></p><p><span style=\"color: rgb(255, 251, 143);\">撒旦教奥斯卡了的骄傲了看得见卡的好拉屎的金卡价saduoiejwrwmflkvnfslvlkaosfjdfms</span></p><p><span style=\"color: rgb(255, 251, 143);\">舒服vhskdjklvnmxmvxsdfsdfsdfjjsj;lrjewklrjkl</span></p><p><img src=\"https://img1.baidu.com/it/u=186439391,629096241&fm=253&fmt=auto&app=120&f=JPEG?w=500&h=740\" alt=\"\" data-href=\"\" style=\"\"/></p><p><br></p><p><br></p><p><span style=\"color: rgb(255, 77, 79);\">结尾。。。。。。asd.asdas撒as大大啊我u哦IE问问瑞荣 &nbsp;1231312313112313132131231</span><div class=\"media-wrap video-wrap\"><video controls=\"\" class=\"med