The file containing the source code shown below is located in the corresponding directory in <sdk>/platforms/android-<version>/samples/...
/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.apis.view;
// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R;
import android.app.ListActivity;
import android.database.Cursor;
import android.provider.Contacts.People;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ListAdapter;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;
/**
* A list view example where the data comes from a cursor.
*/
public class List7 extends ListActivity implements OnItemSelectedListener {
private static String[] PROJECTION = new String[] {
People._ID, People.NAME, People.NUMBER
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_7);
mPhone = (TextView) findViewById(R.id.phone);
getListView().setOnItemSelectedListener(this);
// Get a cursor with all people
Cursor c = getContentResolver().query(People.CONTENT_URI, PROJECTION, null, null, null);
startManagingCursor(c);
mPhoneColumnIndex = c.getColumnIndex(People.NUMBER);
ListAdapter adapter = new SimpleCursorAdapter(this,
android.R.layout.simple_list_item_1, // Use a template
// that displays a
// text view
c, // Give the cursor to the list adatper
new String[] {People.NAME}, // Map the NAME column in the
// people database to...
new int[] {android.R.id.text1}); // The "text1" view defined in
// the XML template
setListAdapter(adapter);
}
public void onItemSelected(AdapterView parent, View v, int position, long id) {
if (position >= 0) {
Cursor c = (Cursor) parent.getItemAtPosition(position);
mPhone.setText(c.getString(mPhoneColumnIndex));
}
}
public void onNothingSelected(AdapterView parent) {
mPhone.setText(R.string.list_7_nothing);
}
private int mPhoneColumnIndex;
private TextView mPhone;
}