package com.example.mytestdemo;

import java.lang.reflect.Field;

import android.app.Activity;

import android.graphics.drawable.Drawable;

import android.os.Bundle;

import android.text.Html;

import android.text.Html.ImageGetter;

import android.widget.TextView;

public class MainActivity extends Activity {

    private TextView mTextView;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mTextView = (TextView) findViewById(R.id.tv_1);

        String html = "<img src='liuhan'/>天气好热。。<p/><img src='haha'/>没关系，我有空调！";

        CharSequence charSequence = Html.fromHtml(html, new ImageGetter() {

            @Override

            public Drawable getDrawable(String source) {

                //根据资源变量名称获取R资源Id,再根据资源Id获取到Drawable对象

                Drawable drawable = getResources().getDrawable(getResourceId(source));//如果为网络src图片，则需要另写方法从网络中加载获得drawable图片

                //对图片进行压缩（此处我采用原图）

                drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());

                return drawable;

            }

        }, null);

        //设置文本信息

        mTextView.setText(charSequence);

    }

    /**

     * 根据资源文件的变量名返回资源文件的文件ID

     * @param name

     * @return

     */

    public int getResourceId(String name) {

        try {

            //利用Java反射机制获取R资源Id

            Field field = R.drawable.class.getField(name);

            return Integer.parseInt(field.get(null).toString());

        } catch (NoSuchFieldException e) {

            e.printStackTrace();

        } catch (IllegalAccessException e) {

            e.printStackTrace();

        } catch (IllegalArgumentException e) {

            e.printStackTrace();

        }

        return 0;

    }

}

//根据url转Drawable

InputStream is = (InputStream) new URL(source).getContent();

Drawable d = Drawable.createFromStream(is, "src");  
is.close();