Question

In my list view inflator i have an image and a textview. When the user selects the any item in the listview, I want to increase the font size of the text in the textview. I am using a custom adapter. Can I do this in getview method ? And also is it possible to do this without calling notifydatasetchanged() always ?

Answer 1

You can use setTag() and getTag().

setTag() in your adapter’s getView()

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

    convertView=  getLayoutInflater().inflate(R.layout.layoutfile, null);
    TextView mTextViewNumber= (TextView) convertView.findViewById(R.id.TvId);
    ImageView mImageView= (ImageView) convertView.findViewById(R.id.ImgId)
    mTextViewNumber.setText("Hi hello");
    mImageView.setBackgroundResource(R.x.xxxx);
    convertView.setTag(mTextViewNumber, R.id.TvId);
    convertView.setTag(mImageView, R.id.ImgId);
    return convertView;
}

Change the Textsize by getTag() OnItemClickListener().

mListView=(ListView) findViewById(R.id.list_call_log_listview);
mListView.setOnItemClickListener(new OnItemClickListener() {

    @Override
    public void onItemClick(AdapterView<?> arg0, View view, int arg2,
                    long arg3) {
        TextView mTextView= (TextView) view.getTag(R.id.TvId);
        mTextView.setTextSize(20);
        ImageView mImageView= (ImageView) view.getTag(R.id.ImgId);
        mImageView.setBackgroundResource(R.x.xxxx);
    }

});