Android TextView 展示网络图片

package com.iaiai;import java.io.File;import java.io.FileReader;import java.io.IOException;import java.net.URL;import android.app.Activity;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.os.Handler;import android.text.Html;import android.text.Html.ImageGetter;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.ImageView;import android.widget.TextView;import com.hilary.utils.AsyncImageLoader;/** *  * <p> * Title: Main.java * </p> * <p> * E-Mail: [email protected] * </p> * <p> * QQ: 176291935 * </p> * <p> * Http: iaiai.iteye.com * </p> * <p> * Create time: 2011-10-26 * </p> *  * @author 丸子 * @version 0.0.1 */public class Main extends Activity {	Button btn2;	ImageView imge;	Thread thread = null;	Runnable runnable = null;	TextView textView = null;	 Drawable dra = null;	private AsyncImageLoader asyncImageLoader;	/** Called when the activity is first created. */	@Override	public void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.main);		asyncImageLoader = AsyncImageLoader.getAsyncImageLoader();		btn2 = (Button) findViewById(R.id.btn2);		textView = (TextView) findViewById(R.id.show_tv);		btn2.setOnClickListener(new OnClickListener() {			@Override			public void onClick(View v) {				Handler handler = new Handler();//				handler.post(runable);				textView.setText(Html.fromHtml( _readFile("/sdcard/test2.txt"), imgGetter, null));			}		});	}		public String _readFile(String str) {		StringBuffer sb = new StringBuffer();		File file = new File(str);		try {			FileReader is = new FileReader(file);			while (is.ready()) {				int c = is.read();				sb.append((char) c);			}		} catch (IOException e) {			e.printStackTrace();		}		return sb.toString();	}		ImageGetter imgGetter = new Html.ImageGetter() {		@Override		public Drawable getDrawable(String source) {			System.out.println("***" + source);			//异步加载图片//			 Drawable drawable = asyncImageLoader.loadDrawable(//					source, new ImageCallback() {////						@Override//						public void imageLoaded(Drawable imageDrawable,//								String imageUrl) {//							 if (imageDrawable == null) {//							 } else {//								 imageDrawable.setBounds(0, 0, imageDrawable.getIntrinsicWidth(), imageDrawable   //						                    .getIntrinsicHeight()); //							 }//							 dra = imageDrawable;//						}//					});//			if(source.equals("1")){//				drawable = Main.this.getResources().getDrawable(R.drawable.aa);//			} else if (source.equals("2")){//				drawable = Main.this.getResources().getDrawable(R.drawable.b);//			} else {//				drawable = Main.this.getResources().getDrawable(R.drawable.icon);//			}			URL url;  			Drawable drawable = null;            try {                  url = new URL(source);                  drawable = Drawable.createFromStream(url.openStream(), "");              } catch (Exception e) {                  return null;              }  			drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable                       .getIntrinsicHeight()); 			return drawable;		}   			};}