Android实现TextView显示HTML加图片的方法

//TextView 控件textViewContent = (TextView) getActivity().findViewById(R.id.textview_prodcut_detail_more_zp_content);//HTML文本zp_content = "测试图片信息：<br><img src=/"http://b2c.zeeeda.com/upload/2013/05/10/136814766742544.jpg/" />";//默认图片，无图片或没加载完显示此图片Drawable defaultDrawable = MainActivity.ma.getResources().getDrawable(R.drawable.stub);//调用Spanned sp = Html.fromHtml(zp_content, new HtmlImageGetter(textViewContent, "/esun_msg", defaultDrawable), null);textViewContent.setText(sp);

import java.io.InputStream;import android.graphics.Canvas;import android.graphics.drawable.BitmapDrawable;import android.graphics.drawable.Drawable;import android.os.AsyncTask;import android.os.Environment;import android.text.Html.ImageGetter;import android.util.Log;import android.widget.TextView;public class HtmlImageGetter implements ImageGetter{  private TextView _htmlText;  private String _imgPath;  private Drawable _defaultDrawable;  private String TAG = "HtmlImageGetter";  public HtmlImageGetter(TextView htmlText, String imgPath, Drawable defaultDrawable){    _htmlText = htmlText;    _imgPath = imgPath;    _defaultDrawable = defaultDrawable;  }  @Override  public Drawable getDrawable(String imgUrl) {    String imgKey = String.valueOf(imgUrl.hashCode());    String path = Environment.getExternalStorageDirectory() + _imgPath;    FileUtil.createPath(path);    String[] ss = imgUrl.split("//.");    String imgX = ss[ss.length-1];    imgKey = path+"/" + imgKey+"."+imgX;    if(FileUtil.exists(imgKey)){      Drawable drawable = FileUtil.getImageDrawable(imgKey);      if(drawable != null){        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());        return drawable;      }else{        Log.v(TAG,"load img:"+imgKey+":null");      }    }    URLDrawable urlDrawable = new URLDrawable(_defaultDrawable);    new AsyncThread(urlDrawable).execute(imgKey, imgUrl);    return urlDrawable;  }  private class AsyncThread extends AsyncTask<String, Integer, Drawable> {    private String imgKey;    private URLDrawable _drawable;    public AsyncThread(URLDrawable drawable){      _drawable = drawable;    }    @Override    protected Drawable doInBackground(String... strings) {      imgKey = strings[0];      InputStream inps = NetWork.getInputStream(strings[1]);      if(inps == null) return _drawable;      FileUtil.saveFile(imgKey, inps);      Drawable drawable = Drawable.createFromPath(imgKey);      return drawable;    }    public void onProgressUpdate(Integer... value) {    }    @Override    protected void onPostExecute(Drawable result) {      _drawable.setDrawable(result);      _htmlText.setText(_htmlText.getText());    }  }  public class URLDrawable extends BitmapDrawable {    private Drawable drawable;    public URLDrawable(Drawable defaultDraw){      setDrawable(defaultDraw);    }    private void setDrawable(Drawable ndrawable){      drawable = ndrawable;      drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable          .getIntrinsicHeight());      setBounds(0, 0, drawable.getIntrinsicWidth(), drawable          .getIntrinsicHeight());    }    @Override    public void draw(Canvas canvas) {      drawable.draw(canvas);    }  }}

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.util.HashMap;import java.util.Iterator;import java.util.Map;import java.util.zip.GZIPInputStream;import java.util.zip.InflaterInputStream;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpGet;import org.apache.http.entity.BufferedHttpEntity;import org.apache.http.impl.client.DefaultHttpClient;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.util.Log;public class NetWork {  private static String TAG = "NetWork";  public static String getHttpData(String baseUrl){    return getHttpData(baseUrl, "GET", "", null);  }  public static String postHttpData(String baseUrl, String reqData){    return getHttpData(baseUrl, "POST", reqData, null);  }  public static String postHttpData(String baseUrl, String reqData, HashMap<String, String> propertys){    return getHttpData(baseUrl, "POST", reqData, propertys);  }  /**   * 获取赛事信息   * @return   */  public static String getHttpData(String baseUrl, String method, String reqData, HashMap<String, String> propertys){    String data = "", str;    PrintWriter outWrite = null;    InputStream inpStream = null;    BufferedReader reader = null;    HttpURLConnection urlConn = null;    try{      URL url = new URL(baseUrl);      urlConn = (HttpURLConnection)url.openConnection();      //启用gzip压缩      urlConn.addRequestProperty("Accept-Encoding", "gzip, deflate");      urlConn.setRequestMethod(method);      urlConn.setDoOutput(true);      urlConn.setConnectTimeout(3000);      if(propertys != null && !propertys.isEmpty()){        Iterator<Map.Entry<String, String>> props = propertys.entrySet().iterator();        Map.Entry<String, String> entry;        while (props.hasNext()){          entry = props.next();          urlConn.setRequestProperty(entry.getKey(), entry.getValue());        }      }      outWrite = new PrintWriter(urlConn.getOutputStream());      outWrite.print(reqData);      outWrite.flush();      urlConn.connect();      //获取数据流      inpStream = urlConn.getInputStream();      String encode = urlConn.getHeaderField("Content-Encoding");      //如果通过gzip      if(encode !=null && encode.indexOf("gzip") != -1){        Log.v(TAG, "get data :" + encode);        inpStream = new GZIPInputStream(inpStream);      }else if(encode != null && encode.indexOf("deflate") != -1){        inpStream = new InflaterInputStream(inpStream);      }      reader = new BufferedReader(new InputStreamReader(inpStream));      while((str = reader.readLine()) != null){        data += str;      }    }catch (MalformedURLException ex){      ex.printStackTrace();    }catch (IOException ex){      ex.printStackTrace();    }finally{      if(reader !=null && urlConn!=null){        try {          outWrite.close();          inpStream.close();          reader.close();          urlConn.disconnect();        } catch (IOException ex) {          ex.printStackTrace();        }      }    }    Log.d(TAG, "[Http data]["+baseUrl+"]:" + data);    return data;  }  /**   * 获取Image信息   * @return   */  public static Bitmap getBitmapData(String imgUrl){    Bitmap bmp = null;    Log.d(TAG, "get imgage:"+imgUrl);    InputStream inpStream = null;    try{      HttpGet http = new HttpGet(imgUrl);      HttpClient client = new DefaultHttpClient();      HttpResponse response = (HttpResponse)client.execute(http);      HttpEntity httpEntity = response.getEntity();      BufferedHttpEntity bufferedHttpEntity = new BufferedHttpEntity(httpEntity);      //获取数据流      inpStream = bufferedHttpEntity.getContent();      bmp = BitmapFactory.decodeStream(inpStream);    }catch (Exception ex){      ex.printStackTrace();    }finally{      if(inpStream !=null){        try {          inpStream.close();        } catch (IOException ex) {          ex.printStackTrace();        }      }    }    return bmp;  }  /**   * 获取url的InputStream   * @param urlStr   * @return   */  public static InputStream getInputStream(String urlStr){    Log.d(TAG, "get http input:"+urlStr);    InputStream inpStream = null;    try{      HttpGet http = new HttpGet(urlStr);      HttpClient client = new DefaultHttpClient();      HttpResponse response = (HttpResponse)client.execute(http);      HttpEntity httpEntity = response.getEntity();      BufferedHttpEntity bufferedHttpEntity = new BufferedHttpEntity(httpEntity);      //获取数据流      inpStream = bufferedHttpEntity.getContent();    }catch (Exception ex){      ex.printStackTrace();    }finally{      if(inpStream !=null){        try {          inpStream.close();        } catch (IOException ex) {          ex.printStackTrace();        }      }    }    return inpStream;  }}

import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import android.graphics.drawable.BitmapDrawable;import android.graphics.drawable.Drawable;import android.os.Environment;import android.util.Log;public class FileUtil {  private static int FILE_SIZE = 4*1024;  private static String TAG = "FileUtil";  public static boolean hasSdcard(){    String status = Environment.getExternalStorageState();    if(status.equals(Environment.MEDIA_MOUNTED)){      return true;    }    return false;  }  public static boolean createPath(String path){    File f = new File(path);    if(!f.exists()){      Boolean o = f.mkdirs();      Log.i(TAG, "create dir:"+path+":"+o.toString());      return o;    }    return true;  }  public static boolean exists(String file){    return new File(file).exists();  }  public static File saveFile(String file, InputStream inputStream){    File f = null;    OutputStream outSm = null;    try{      f = new File(file);      String path = f.getParent();      if(!createPath(path)){        Log.e(TAG, "can't create dir:"+path);        return null;      }      if(!f.exists()){        f.createNewFile();      }      outSm = new FileOutputStream(f);      byte[] buffer = new byte[FILE_SIZE];      while((inputStream.read(buffer)) != -1){        outSm.write(buffer);      }      outSm.flush();    }catch (IOException ex) {      ex.printStackTrace();      return null;    }finally{      try{        if(outSm != null) outSm.close();      }catch (IOException ex) {        ex.printStackTrace();      }    }    Log.v(TAG,"[FileUtil]save file:"+file+":"+Boolean.toString(f.exists()));    return f;  }  public static Drawable getImageDrawable(String file){    if(!exists(file)) return null;    try{      InputStream inp = new FileInputStream(new File(file));      return BitmapDrawable.createFromStream(inp, "img");    }catch (Exception ex){      ex.printStackTrace();    }    return null;  }}