android - 从android中的html数据获取图像？

Question

您好我已经通过链接Android HTML ImageGetter as AsyncTask为 html 数据设置图像。当我执行下面的代码时，它会将 o/p 显示为 Hello This is a test，然后再次将“This is a test”替换为 img1，并且第二张图像也未显示。请建议我如何将图像放在文本旁边？

提前致谢

我的代码：

  main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

     <TextView
            android:id="@+id/tv_pw"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_marginLeft="10dip"
            android:layout_marginRight="9dip"
            android:layout_marginTop="15dip"
            android:text=""
            android:textColor="#ffffffff"
            android:textSize="10pt" >
        </TextView>

</LinearLayout>

Myclass.java

public class SamplehtmlActivity extends Activity {
    /** Called when the activity is first created. */

    TextView textView;
    String html = "Hello " +
    "<img src='http://server.com/img1.png'/>" +
    " This is a test " +
    "<img src='http://server.com/img2.png'/>";


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        this.textView = (TextView)this.findViewById(R.id.tv_pw);
        URLImageParser p = new URLImageParser(textView, this);
        Spanned htmlSpan = Html.fromHtml(html, p, null);
        textView.setText(htmlSpan);

    }

    public class URLDrawable extends BitmapDrawable {
        // the drawable that you need to set, you could set the initial drawing
        // with the loading image if you need to
        protected Drawable drawable;

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


    public class URLImageParser implements ImageGetter {
        Context c;
        View container;

        /***
         * Construct the URLImageParser which will execute AsyncTask and refresh the container
         * @param t
         * @param c
         */
        public URLImageParser(View t, Context c) {
            this.c = c;
            this.container = t;
        }

        public Drawable getDrawable(String source) {
            URLDrawable urlDrawable = new URLDrawable();

            // get the actual source
            ImageGetterAsyncTask asyncTask = 
                new ImageGetterAsyncTask( urlDrawable);

            asyncTask.execute(source);

            // return reference to URLDrawable where I will change with actual image from
            // the src tag
            return urlDrawable;
        }

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

            public ImageGetterAsyncTask(URLDrawable d) {
                this.urlDrawable = d;
            }

            @Override
            protected Drawable doInBackground(String... params) {
                String source = params[0];
                return fetchDrawable(source);
            }

            @Override
            protected void onPostExecute(Drawable result) {
                // 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
                URLImageParser.this.container.invalidate();
            }

            /***
             * Get the Drawable from URL
             * @param urlString
             * @return
             */
            public Drawable fetchDrawable(String urlString) {
                try {
                    InputStream is = fetch(urlString);
                    Drawable drawable = Drawable.createFromStream(is, "src");
                    drawable.setBounds(0, 0, 0 + drawable.getIntrinsicWidth(), 0 
                            + drawable.getIntrinsicHeight()); 
                    return drawable;
                } catch (Exception e) {
                    return null;
                } 
            }

            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();
            }
        }
    }

}