hi,
I am trying to create a list view which as TextView that can display html content , an WebView and other basic TextViews.I tried to extend SimpleAdapter but i struck with the problem ,I will be glad if someone can point out the mistake i am doing.
In onCreate method
ArrayList mylist= resultfromXmlparser();
adap = new MyAdapter(TourLandingPage.this, mylist, R.layout.row,
            new String[] {"Name", "desc","Duration","Price","imgurl"},  new int[]
            {R.id.productname,R.id.des,R.id.duration,R.id.pricefrom,R.id.photo});
setListAdapter(adap);
My custom Adapter looks like this
private class MyAdapter extends SimpleAdapter {
         ArrayList<HashMap<String,String>> elements;
         Context ctx;
         public MyAdapter(Context context, ArrayList<HashMap<String,String>> mylist,int textViewResourceId,String[] names,int[] resouceid) {
         super(context, mylist,textViewResourceId, names,resouceid);
         this.elements=mylist;
         this.ctx=context;
         }
         @Override
         public int getCount() {
              return elements.size();
             }
         @Override
         public Object getItem(int position) {
              return elements.get(position);
          }
        @Override
        public long getItemId(int position) {
              return position;
             }
              @Override
       public View getView(int position, View convertView, ViewGroup parent) {
         RelativeLayout rowLayout;
                if (convertView == null) {
                 rowLayout = (RelativeLayout) 
                     LayoutInflater.from(ctx).inflate(R.layout.rowfor_tourlist, parent, false);
           } else {
            rowLayout = (RelativeLayout) convertView;
                 }
              TextView in = (TextView)rowLayout.findViewById(R.id.introduction);
              TextView du = (TextView)rowLayout.findViewById(R.id.duration);
              TextView pf = (TextView)rowLayout.findViewById(R.id.pricefrom);
              TextView pn = (TextView)rowLayout.findViewById(R.id.productname);
              WebView wv=(WebView)rowLayout.findViewById(R.id.photo);  
              in.setText(Html.fromHtml(mylist.get(position).get("desc")));
              du.setText(mylist.get(position).get("Duration"));
              pf.setText(mylist.get(position).get("Price"));
              pn.setText(mylist.get(position).get("Name"));
              wv.getSettings().setJavaScriptEnabled(true);
              wv.loadUrl(mylist.get(position).get("imgurl"));
             return convertView;
         }         
     }//class
and my row.xml file looks like 
RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
TextView 
       android:id="@+id/productname"
       ......
LinearLayout
         android:layout_width="wrap_content"
         android:layout_height="60dip"
         android:layout_margin="5dip"
         android:layout_below="@id/productname"
         android:orientation="horizontal"
         android:id="@+id/lay1"
     WebView 
      android:id="@+id/photo"
      ....
     TextView 
       android:id="@+id/introduction"
       ......
LinearLayout
TextView 
      android:id="@+id/duration" 
      ....
   TextView 
     android:id="@+id/pricefrom" 
      ..... 
RelativeLayout
The error i was getting was
04-28 19:46:17.749: ERROR/AndroidRuntime(976): Uncaught handler: thread main exiting due to uncaught exception
04-28 19:46:17.769: ERROR/AndroidRuntime(976): java.lang.NullPointerException
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.ListView.setupChild(ListView.java:1693)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.ListView.makeAndAddView(ListView.java:1671)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.ListView.fillDown(ListView.java:637)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.ListView.fillFromTop(ListView.java:694)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.ListView.layoutChildren(ListView.java:1521)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.AbsListView.onLayout(AbsListView.java:1113)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.view.View.layout(View.java:6831)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.LinearLayout.layoutHorizontal(LinearLayout.java:1108)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.LinearLayout.onLayout(LinearLayout.java:920)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.view.View.layout(View.java:6831)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:998)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.LinearLayout.onLayout(LinearLayout.java:918)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.view.View.layout(View.java:6831)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.view.View.layout(View.java:6831)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:998)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.LinearLayout.onLayout(LinearLayout.java:918)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.view.View.layout(View.java:6831)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.view.View.layout(View.java:6831)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.view.ViewRoot.performTraversals(ViewRoot.java:996)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1633)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.os.Handler.dispatchMessage(Handler.java:99)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.os.Looper.loop(Looper.java:123)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at android.app.ActivityThread.main(ActivityThread.java:4338)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at java.lang.reflect.Method.invokeNative(Native Method)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at java.lang.reflect.Method.invoke(Method.java:521)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
04-28 19:46:17.769: ERROR/AndroidRuntime(976):     at dalvik.system.NativeStart.main(Native Method)
04-28 19:46:17.789: INFO/Process(52): Sending signal. PID: 976 SIG: 3
04-28 19:46:17.799: INFO/dalvikvm(976): threadid=7: reacting to signal 3
04-28 19:46:17.829: INFO/dalvikvm(976): Wrote stack trace to '/data/anr/traces.txt'