TextView加载带图片的Html解决方案

查看了下网上关于TextView加载带图片标签的Html解决方案若干，发现很多都是讲下面这种：
1：重写ImageGetter，直接获取网络图片(这是比较通用的做法，但是遇到大图片或者网络不好的情况下，会阻塞主进程)

 

  

ImageGetter imgGetter = new Html.ImageGetter() {        public Drawable getDrawable(String source) {              Drawable drawable = null;              URL url;                try {                     url = new URL(source);                    drawable = Drawable.createFromStream(url.openStream(), "");  //获取网路图片              } catch (Exception e) {                    return null;                }                drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());              return drawable;         } };

 

 

 并设置TextView

 

  

TextView notice_content = (TextView) findViewById(R.id.notice_content);notice_content.setText(Html.fromHtml(getIntent().getStringExtra(CONTENT),imgGetter,null));

 

 

2：重写ImageGetter，异步加载图片（这是比较流畅的方法，设置一个默认图片，异步加载出来，如果使用Drawable作为对象接收图片，手机会自动缩放图片，这不是我想要的，我需要的是真实大小图片（图片大于手机分辨率等比例缩放））

 

  

import java.io.IOException;import java.io.InputStream;import java.net.MalformedURLException;import org.apache.http.HttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.DefaultHttpClient;import android.content.Context;import android.content.res.Resources.NotFoundException;import android.graphics.drawable.BitmapDrawable;import android.graphics.drawable.Drawable;import android.os.AsyncTask;import android.text.Html.ImageGetter;import android.util.DisplayMetrics;import android.view.Display;import android.widget.TextView;public class URLImageParser implements ImageGetter { Context c; TextView tv_image; private Drawable mDefaultDrawable; public URLImageParser(TextView t, Context c) {  this.tv_image = t;  this.c = c;  try {   mDefaultDrawable = c.getResources().getDrawable(     R.drawable.activity_detail_title_default);   // Log.i("-->", "执行");  } catch (NotFoundException e) {   mDefaultDrawable = null;   // Log.i("-->", "执行1");   e.printStackTrace();  } } @Override public Drawable getDrawable(String source) {  // TODO Auto-generated method stub  URLDrawable urlDrawable = new URLDrawable();  // main3.b.add(source);  try {   /*    * mDefaultDrawable.setBounds(0, 0, 0 +    * mDefaultDrawable.getIntrinsicWidth(),    * mDefaultDrawable.getIntrinsicHeight());    */   urlDrawable.drawable = mDefaultDrawable;   URLImageParser.this.tv_image.invalidate();  } catch (Exception e) {   e.printStackTrace();  }  /*   * urlDrawable.setBounds(0, 0, 0 + mDefaultDrawable.getIntrinsicWidth(),   * mDefaultDrawable.getIntrinsicHeight());   */  ImageGetterAsyncTask asyncTask = new ImageGetterAsyncTask(urlDrawable);  asyncTask.execute(source);  return urlDrawable; } public class ImageGetterAsyncTask extends AsyncTask<String, Void, Drawable> {  URLDrawable urlDrawable;  public ImageGetterAsyncTask(URLDrawable d) {   this.urlDrawable = d;  }  @Override  protected void onPostExecute(Drawable result) {   if (result != null) {    urlDrawable.drawable = result;    URLImageParser.this.tv_image.invalidate();    // Log.i("-->", "执行3");   }  }  @Override  protected void onPreExecute() {   urlDrawable.setBounds(0, 0,     0 + mDefaultDrawable.getIntrinsicWidth(),     0 + mDefaultDrawable.getIntrinsicHeight());   urlDrawable.drawable = mDefaultDrawable;   URLImageParser.this.tv_image.invalidate();   super.onPreExecute();  }  @Override  protected Drawable doInBackground(String... params) {   // TODO Auto-generated method stub   String source = params[0];// 图片URL   return fetchDrawable(source);  }  // 获取URL的Drawable对象  public Drawable fetchDrawable(String urlString) {   BitmapDrawable bitmap = null;   Drawable drawable = null;   try {    InputStream is = fetch(urlString);    bitmap = (BitmapDrawable) BitmapDrawable.createFromStream(is,"src");    drawable = bitmap;    DisplayMetrics metrics = Constants.metrics;    if(bitmap.getBitmap().getWidth()>metrics.widthPixels||bitmap.getBitmap().getHeight()>metrics.heightPixels)     //进行等比例缩放程序     drawable.setBounds(0, 0, metrics.widthPixels, ((int)(metrics.widthPixels*bitmap.getBitmap().getHeight()/bitmap.getBitmap().getWidth())));    else     drawable.setBounds(0,0,bitmap.getBitmap().getWidth(),bitmap.getBitmap().getHeight());   } catch (Exception e) {    return null;   }   return drawable;  }  private InputStream fetch(String urlString)    throws MalformedURLException, IOException {   DefaultHttpClient httpClient = new DefaultHttpClient();   HttpGet request = new HttpGet(urlString);   HttpResponse response = httpClient.execute(request);   return response.getEntity().getContent();  } }}

 

 

URLDrawable类

 

  

import android.graphics.Canvas;import android.graphics.drawable.BitmapDrawable;import android.graphics.drawable.Drawable;public class URLDrawable extends BitmapDrawable { protected Drawable drawable; @Override public void draw(Canvas canvas) {      if (drawable != null) {    drawable.draw(canvas);   } }}

 

 

此是解决方案中的部分，如果有好的解决方案，请粘贴出来，让我参考 研究！谢谢