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androidsimpleadapter

WebView in SimpleAdapter

i create Rss with json, when i get jsonObject from Background, in postExecute i create Map with objects result, then i have an error LogCat causes an error WebView in SimpleAdapter why, no one can help?

LogCat

    12-05 17:55:35.597: E/AndroidRuntime(22543): FATAL EXCEPTION: main
    12-05 17:55:35.597: E/AndroidRuntime(22543): java.lang.IllegalStateException: android.webkit.WebView is not a  view that can be bounds by this SimpleAdapter
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.SimpleAdapter.bindView(SimpleAdapter.java:195)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.SimpleAdapter.createViewFromResource(SimpleAdapter.java:126)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.SimpleAdapter.getView(SimpleAdapter.java:114)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.AbsListView.obtainView(AbsListView.java:2161)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.ListView.makeAndAddView(ListView.java:1831)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.ListView.fillDown(ListView.java:674)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.ListView.fillFromTop(ListView.java:735)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.ListView.layoutChildren(ListView.java:1652)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.AbsListView.onLayout(AbsListView.java:1996)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.View.layout(View.java:14003)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.ViewGroup.layout(ViewGroup.java:4375)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1663)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1521)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.View.layout(View.java:14003)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.ViewGroup.layout(ViewGroup.java:4375)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.View.layout(View.java:14003)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.ViewGroup.layout(ViewGroup.java:4375)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1663)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1521)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.View.layout(View.java:14003)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.ViewGroup.layout(ViewGroup.java:4375)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.View.layout(View.java:14003)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.ViewGroup.layout(ViewGroup.java:4375)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1892)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1711)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.Choreographer.doCallbacks(Choreographer.java:562)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.Choreographer.doFrame(Choreographer.java:532)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.os.Handler.handleCallback(Handler.java:725)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.os.Handler.dispatchMessage(Handler.java:92)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.os.Looper.loop(Looper.java:137)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at android.app.ActivityThread.main(ActivityThread.java:5238)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at java.lang.reflect.Method.invokeNative(Native Method)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at java.lang.reflect.Method.invoke(Method.java:511)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:799)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:566)
    12-05 17:55:35.597: E/AndroidRuntime(22543):    at dalvik.system.NativeStart.main(Native Method)

SourceCode

protected void onPostExecute(JSONObject result) {
      super.onPostExecute(result);
      if(result != null){ 

      JSONObject jsn = result;
      try {
        JSONArray jarray = jsn.getJSONArray("item");
        for (int i = 0; i < jarray.length(); i++){
            JSONObject jsno = jarray.getJSONObject(i);
            Log.d("Log", jsno.getString("title"));
             rssMap = new HashMap<String, Object>();
             rssMap.put(TITLE, jsno.getString("title"));
             rssMap.put(CATEGORY, jsno.getString("category"));
             rssMap.put(DATE, jsno.getString("pubDate"));
             rssMap.put(DESCRIPTION, jsno.getString("description"));// This for webView, it's  html code!
             rssView.add(rssMap);
        }
        SimpleAdapter adapter = new SimpleAdapter(
                getApplicationContext(), rssView, R.layout.item, 
                new String[] {TITLE, CATEGORY, DATE, DESCRIPTION}, 
                new int[] {R.id.title, R.id.cat, R.id.date, R.id.desc}
                );
        list.setAdapter(adapter);
      }
      catch (JSONException e) {     
            e.printStackTrace();}
      }
      else{
          /*
           * Тут мне нужен AlertDialog с оповещанием что нету подключения к сети!
           * */
          showDialog(errorShow);      
      }

    }

}

item.xml

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

    <TextView
        android:id="@+id/title"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Заголовок"
        android:textColor="#33b5e5"
        android:textSize="23sp" />

    <TextView
        android:id="@+id/date"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="05.12.2012"
        android:textColor="#969696"
        android:textSize="14sp" />

    <TextView
        android:id="@+id/cat"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Категория"
        android:textColor="#969696"
        android:textSize="14sp" />

    <WebView
        android:id="@+id/desc"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>
Solution

  • The Android documentation for SimpleAdapter states that:

    Binding data to views occurs in two phases. First, if a SimpleAdapter.ViewBinder is available, setViewValue(android.view.View, Object, String) is invoked. If the returned value is true, binding has occurred. If the returned value is false, the following views are then tried in order:

    • A view that implements Checkable (e.g. CheckBox). The expected bind value is a boolean.
    • TextView. The expected bind value is a string and setViewText(TextView, String) is invoked.
    • ImageView. The expected bind value is a resource id or a string and setViewImage(ImageView, int) or setViewImage(ImageView, String) is invoked.

    If no appropriate binding can be found, an IllegalStateException is thrown.

    The Adapter cannot convert your jsno.getString("description") (which is a String) to a URL on its own. You can try and convert the String then put it as a URL object in rssMap, however, I recommend that you implement your own Custom Adapter and override getView() method to set the URL of the WebView during binding.