/* * 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 * *      http://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.app;// 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.Activity;import android.os.Bundle;/** * Simple example of writing an application Activity. * Hello World</a></h3><p>This demonstrates the basic code needed to write a Screen activity.</p><h4>Demo</h4>App/Activity/Hello World <h4>Source files</h4> * <table class="LinkTable"> *         <tr> *             <td >src/com.example.android.apis/app/HelloWorld.java</td> *             <td >The Hello World Screen implementation</td> *         </tr> *         <tr> *             <td >/res/any/layout/hello_world.xml</td> *             <td >Defines contents of the screen</td> *         </tr> * </table>  */public class HelloWorld extends Activity{    /**     * Initialization of the Activity after it is first created.  Must at least     * call {@link android.app.Activity#setContentView setContentView()} to     * describe what is to be displayed in the screen.     */    @Override	protected void onCreate(Bundle savedInstanceState)    {        // Be sure to call the super class.        super.onCreate(savedInstanceState);        // See assets/res/any/layout/hello_world.xml for this        // view layout definition, which is being set here as        // the content of our screen.        setContentView(R.layout.hello_world);    }}