Google Android - это несложно

Код: Выделить всё

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {
	String[] textMass = new String[] { "один", "два", "три", "четыре" };
	TextView textView;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		ListView listView = (ListView) findViewById(R.id.listView1);
		textView = (TextView) findViewById(R.id.textView1);
		ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
				android.R.layout.simple_list_item_1, textMass);
		listView.setAdapter(adapter);
		listView.setOnItemClickListener(new OnItemClickListener() {
			@Override
			public void onItemClick(AdapterView<?> arg0, View arg1, int pos,
					long arg3) {
				textView.setText(textMass[pos]);
			}
		});

	}
}

Код: Выделить всё

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {
	String[] textMass = new String[] { "один", "два", "три", "четыре" };
	TextView textView;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.menu);
		ListView listView = (ListView) findViewById(R.id.listView1);
		textView = (TextView) findViewById(R.id.textView1);
		ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, textMass);
		
		listView.setAdapter(adapter);
		listView.setOnItemClickListener(new OnItemClickListener() {
			@Override
			public void onItemClick(AdapterView<?> arg0, View view, int pos,
					long arg3) {
				TextView t=(TextView) view.findViewById(android.R.layout.simple_list_item_1);
				textView.setText(t.getText().toString());
			}
		});

	}
}