Android Program to Demonstrate an Adapter

Android Program to Demonstrate an Adapter

MainActivity.java

import android.os.Bundle;
import android.app.Activity;
import android.app.ListActivity;
import android.view.Menu;
 
public class MainActivity extends ListActivity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        String str[] = new String[] { "C", "C++", "Java", "Andorid" };
        MyAdapter adapter = new MyAdapter(this, str);
        setListAdapter(adapter);
    }
 
}

MyAdapter

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
 
public class MyAdapter extends ArrayAdapter<String> {
 
    private final Context context;
    private final String[] var;
 
    public MyAdapter(Context context, String[] var) {
        super(context, R.layout.rowlayout, var);
        // TODO Auto-generated constructor stub
        this.context = context;
        this.var = var;
    }
 
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        LayoutInflater li = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View row = li.inflate(R.layout.rowlayout, parent, false);
        TextView text = (TextView) row.findViewById(R.id.label);
        ImageView img = (ImageView) row.findViewById(R.id.icon);
        text.setText(var[position]);
        String s = var[position];
        if (s.startsWith("C")) {
 
            img.setImageResource(R.drawable.c_pic);
        }
        else if(s.startsWith("Java")){
            img.setImageResource(R.drawable.java);
        }
        else if(s.startsWith("Android")){
            img.setImageResource(R.drawable.ic_launcher);
        }
        else{
            //c++
            img.setImageResource(R.drawable.c_prog);
        }
            return row;
    }
 
}

RowLayout.xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >
 
    <ImageView
        android:id="@+id/icon"
        android:layout_width="100px"
        android:layout_height="100px"
        android:layout_marginLeft="4px"
        android:layout_marginRight="10px"
        android:layout_marginTop="4px"
        android:src="@drawable/ic_launcher" >
    </ImageView>
 
    <TextView
        android:id="@+id/label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@+id/label"
        android:textSize="80px" >
    </TextView>
 
</LinearLayout>