Android Custom List, Unexpectedly close application - android-layout

Question

I am using the following code to to display data in my custom list. but it closes with an exception of unsupported operaton. java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView
public class VerifiedProblemsActivity extends Activity {
ArrayList<Problem> problemsList;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
Log.d("IN VERIFIED ACTIVITY", "ACTIVITY");
setContentView(R.layout.verified_problems);
ListView problemsListView = (ListView) findViewById(R.id.problemsList);
ArrayList<Problem> problemsList = new ArrayList<Problem>();
Problem p1 = new Problem();
p1.problemName = "Problem 1";
p1.problemComments = "Comments 1";
Problem p2 = new Problem();
p2.problemName = "Problem 1";
p2.problemComments = "Comments 1";
problemsList.add(p1);
problemsList.add(p2);
problemsListView.setAdapter(new ProblemAdapter(getApplicationContext(),
android.R.layout.simple_list_item_1, problemsList));
}
private class Problem {
public String problemName;
public String problemComments;
public Problem() {
problemName = "";
problemComments = "";
}
}
private class ProblemAdapter extends ArrayAdapter<Problem> {
ArrayList<Problem> problemObjects;
#SuppressWarnings("unchecked")
public ProblemAdapter(Context context, int textViewResourceId,
List objects) {
super(context, textViewResourceId, objects);
problemObjects = new ArrayList<Problem>(objects);
// TODO Auto-generated constructor stub
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(R.layout.list_item, parent);
try {
TextView title = (TextView) row
.findViewById(R.id.tvProblemTitle);
TextView description = (TextView) row
.findViewById(R.id.tvProblemDecription);
title.setText(problemsList.get(position).problemName);
description
.setText(problemsList.get(position).problemComments);
} catch (Exception e) {
Log.d("VERIFIED PROBLEM ACTIVITY", e.getMessage());
}
return row;
}
}
}
and the following is the list item layout I am using.
<?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" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:gravity="center_vertical" >
<ImageView
android:id="#+id/imgProblemImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="5dp"
android:src="#drawable/ic_launcher" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:orientation="vertical" >
<TextView
android:id="#+id/tvProblemTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/tvProblemDecription"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Small Text"
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
</LinearLayout>
</LinearLayout>

Answer 1

java.lang.UnsupportedOperationException: addView(View, LayoutParams)
is not supported in AdapterView
I think problem is this:
View row = inflater.inflate(R.layout.list_item, parent);
AdapterView doesn't allow adding new View so you need to pass null as ViewGroup.
View row = inflater.inflate(R.layout.list_item, null, false);
Now it should works. Let me know.

Answer 2

problem in view.
change these methods
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(R.layout.list_item, parent);
to like this
View row = convertView
if(row==null){
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.list_item, null);
}
hope this will be helpful to you.