Edit listView content - Android

Question

I have a custom ArrayAdapter set to a listView. Inside each element of the listView I have an item that matches a .xml I created. Codes shown below:

listContent.xml

<RelativeLayout
[... some code ommited]
    <ImageView
    [...]
    <TextView
    android:id="@+id/listViewText"
    [...]

Custom Array Adapter getView(int position, View convertView, ViewGroup parent)

if (position < 4)
{
    convertView = inflater.inflate(R.layout.listContent,null);

    TextView tv = (TextView) findViewById(R.id.listViewText);

    tv.setTextSize(18);
    if (position == 0) tv.setText("0");
    else if (position == 1) tv.setText("1");
    else if (position == 2) tv.setText("2");
    else if (position == 3) tv.setText("3");

    return convertView;
}
return null;

I can't seem to get this to work, I always get some error. What do I need to do in order to edit the TextView inside my listView item?

define 'some error', and post relevant stacktrace. Plus, use convertView.findById, as findById is not defined for an ArrayAdapter — njzk2

ρяσѕρєя K ρяσѕρєя K · Accepted Answer · 2012-12-12T12:54:48

Change your Custom Array Adapter getView code as:

@Override
public View getView(int position, View convertView, ViewGroup parent){

 View row = convertView;

 if(row==null){
  LayoutInflater inflater=getLayoutInflater();
  row=inflater.inflate(R.layout.listContent, parent, false);
 }

 TextView tv=(TextView)row.findViewById(R.id.listViewText);


tv.setTextSize(18);
    if (position == 0) tv.setText("0");
    else if (position == 1) tv.setText("1");
    else if (position == 2) tv.setText("2");
    else if (position == 3) tv.setText("3");

 return row;
}

Edit listView content - Android

2 Answers