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구글.안드로이드.Google.Android.소스. TranslucentFancyActivity.java

원본 : http://code.google.com/android/samples/ApiDemos/src/com/google/android/samples/app/TranslucentFancyActivity.html/* 
 * Copyright (C) 2007 Google Inc.
 *
 * 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.google.android.samples.app;

// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.google.android.samples.R;

import android.app.Activity;
import android.os.Bundle;
import android.view.WindowManager;


/**
 * <h3>Fancy Translucent Activity</h3>
 *
 * <p>This demonstrates the how to write an activity that is translucent,
 * allowing windows underneath to show through, with a fancy
 * compositing effect.</p>
 *
 * <h4>Demo</h4>
 * App/Activity/Translucent Fancy
 *
 * <h4>Source files</h4>
 * <table class="LinkTable">
 *         <tr>
 *             <td >src/com/google/android/samples/app/TranslucentFancyActivity.java</td>
 *             <td >The Translucent Fancy Screen implementation</td>
 *         </tr>
 *         <tr>
 *             <td >/res/any/layout/translucent_background.xml</td>
 *             <td >Defines contents of the screen</td>
 *         </tr>
 * </table>
 */

public class TranslucentFancyActivity 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 icicle)
   
{
       
// Be sure to call the super class.
       
super.onCreate(icicle);

       
// Have the system blur any windows behind this one.
        getWindow
().setFlags(WindowManager.LayoutParams.BLUR_BEHIND_FLAG,
               
WindowManager.LayoutParams.BLUR_BEHIND_FLAG);

       
// Apply a tint to any windows behind this one.  Doing a tint this
       
// way is more efficient than using a translucent background.  Note
       
// that the tint color really should come from a resource.
       
WindowManager.LayoutParams lp = getWindow().getAttributes();
        lp
.tintBehind = 0x60000820;
        getWindow
().setAttributes(lp);

       
// See assets/res/any/layout/translucent_background.xml for this
       
// view layout definition, which is being set here as
       
// the content of our screen.
        setContentView
(R.layout.translucent_background);
   
}
}