Android TextView Html ImageGetter 图片位置不对

TextView 显示Html的方法：

textView.setText(Html.fromHtml(string))

Tags supported by Android

<p>

<div>

handled exactly like

<p>

<br>

<b>

<i>

<strong>

<em>

<u>

<tt>

<dfn>

<sub>

<sup>

<blockquote>

<cite>

<big>

<small>

<font size="..." color="..." face="...">

<h1>

,

<h2>

,

<h3>

,

<h4>

,

<h5>

,

<h6>

<a href="...">

<img src="...">

推荐一个开源项目，支持Html的TextView，添加了几个Tags的支持：
https://github.com/sufficientlysecure/html-textview

Extended support by HtmlTextView

<ul>

<ol>

<li>

<code>

<center>

<strike>

使用这个项目基本能正常显示以上的Html tags。

但是显示图片位置不对，相信很多人遇到这个问题。

TextView显示图片都要自己写个ImageGetter的类,如果图片位置不对，可以试试这行代码，在onPostExecute里面加上

((HtmlTextView)container).setText(((HtmlTextView) container).getText());

完整类：

package org.sufficientlysecure.htmltextview;

import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.text.Html.ImageGetter;
import android.util.Log;
import android.view.View;

import com.example.administrator.bbcodetest.R;

import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;

public class HtmlRemoteImageGetter implements ImageGetter {
    Context c;
    View container;
    URI baseUri;

    /**
     * Construct the URLImageParser which will execute AsyncTask and refresh the container
     */
    public HtmlRemoteImageGetter(View t, Context c, String baseUrl) {
        this.c = c;
        this.container = t;
        if (baseUrl != null) {
            this.baseUri = URI.create(baseUrl);
        }
    }

    public Drawable getDrawable(String source) {
        UrlDrawable urlDrawable = new UrlDrawable();
        ImageGetterAsyncTask asyncTask = new ImageGetterAsyncTask(urlDrawable);

        asyncTask.execute(source);

        // return reference to URLDrawable which will asynchronously load the image specified in the src tag
        return urlDrawable;
    }

    public class ImageGetterAsyncTask extends AsyncTask<String, Void, Drawable> {
        UrlDrawable urlDrawable;
        String source;

        public ImageGetterAsyncTask(UrlDrawable d) {
            this.urlDrawable = d;
        }
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
        }

        @Override
        protected void onPostExecute(final Drawable result) {
            if (result == null) {
                Log.w(HtmlTextView.TAG, "Drawable result is null! (source: " + source + ")");
                return;
            }
            // set the correct bound according to the result from HTTP call
//            urlDrawable.setBounds(0, 0, 0 + result.getIntrinsicWidth(), 0 + result.getIntrinsicHeight());

            // change the reference of the current drawable to the result from the HTTP call
            urlDrawable.drawable = result;

            // redraw the image by invalidating the container
            urlDrawable.invalidateSelf();
            HtmlRemoteImageGetter.this.container.invalidate();
            // important
            <span style="color:#ff0000;">((HtmlTextView)container).setText(((HtmlTextView) container).getText());</span>        }
		
		@Override
        protected Drawable doInBackground(String... params) {
            source = params[0];
            return fetchDrawable(source);
        }
        /**
         * Get the Drawable from URL
         */
        public Drawable fetchDrawable(String urlString) {
            try {
                InputStream is = fetch(urlString);
                Bitmap bitmap= BitmapFactory.decodeStream(is);
                Drawable drawable = new BitmapDrawable(c.getResources(), bitmap);
                int width = bitmap.getWidth();
                int height = bitmap.getHeight();

                int newWidth = width;
                int newHeight = height;

                if( width > container.getWidth() ) {
                    newWidth = container.getWidth();
                    newHeight = (newWidth * height) / width;
                }

                drawable.setBounds(0, 0, 0 + newWidth, 0 + newHeight);
                urlDrawable.setBounds(0, 0, newWidth, newHeight);
                return drawable;
            } catch (Exception e) {
                return null;
            }
        }

        private InputStream fetch(String urlString) throws IOException {
            URL url;
            if (baseUri != null) {
                url = baseUri.resolve(urlString).toURL();
            } else {
                url = URI.create(urlString).toURL();
            }

            return (InputStream) url.getContent();
        }
    }

    @SuppressWarnings("deprecation")
    public class UrlDrawable extends BitmapDrawable {
        protected Drawable drawable;

        @Override
        public void draw(Canvas canvas) {
            // override the draw to facilitate refresh function later
            if (drawable != null) {
                drawable.draw(canvas);
            }
        }
    }
}