ListView Adapter

package com.example.leaderinfo;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class CustomAdapter extends BaseAdapter {
    int[] imgs;
    String[] leaderNames;
    Context context;
    private LayoutInflater inflater;

    CustomAdapter(Context context, String[] leaderNames,int[] imgs)
    {
        this.context=context;
        this.leaderNames=leaderNames;
        this.imgs=imgs;
    }
    @Override
    public int getCount() {
        return leaderNames.length;
    }

    @Override
    public Object getItem(int i) {
        return null;
    }

    @Override
    public long getItemId(int i) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if(convertView ==null)
        {
          inflater=(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
          convertView = inflater.inflate(R.layout.sample_view,parent,false);
        }

        ImageView imageView= (ImageView) convertView.findViewById(R.id.imageViewId);
        TextView textView= (TextView) convertView.findViewById(R.id.leaderName);
        imageView.setImageResource(imgs[position]);
        textView.setText(leaderNames[position]);
        return convertView;
    }
}