sdk/sources/android-23/android/app/TranslucentFancyActivity.java

   1 /*
   2  * Copyright (C) 2007 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package android.app;
  18
  19 import com.android.frameworks.coretests.R;
  20
  21 import android.app.Activity;
  22 import android.os.Bundle;
  23 import android.view.WindowManager;
  24
  25
  26 /**
  27  * <h3>Fancy Translucent Activity</h3>
  28  *
  29  * <p>This demonstrates the how to write an activity that is translucent,
  30  * allowing windows underneath to show through, with a fancy
  31  * compositing effect.</p>
  32  *
  33  * <h4>Demo</h4>
  34  * App/Activity/Translucent Fancy
  35  *
  36  * <h4>Source files</h4>
  37  * <table class="LinkTable">
  38  *         <tr>
  39  *             <td >src/com/android/samples/app/TranslucentFancyActivity.java</td>
  40  *             <td >The Translucent Fancy Screen implementation</td>
  41  *         </tr>
  42  *         <tr>
  43  *             <td >/res/any/layout/translucent_background.xml</td>
  44  *             <td >Defines contents of the screen</td>
  45  *         </tr>
  46  * </table>
  47  */
  48 public class TranslucentFancyActivity extends Activity
  49 {
  50     /**
  51      * Initialization of the Activity after it is first created.  Must at least
  52      * call {@link android.app.Activity#setContentView setContentView()} to
  53      * describe what is to be displayed in the screen.
  54      */
  55     @Override
  56     protected void onCreate(Bundle icicle)
  57     {
  58         // Be sure to call the super class.
  59         super.onCreate(icicle);
  60
  61         // Have the system blur any windows behind this one.
  62         getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND,
  63                 WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
  64
  65         // See assets/res/any/layout/translucent_background.xml for this
  66         // view layout definition, which is being set here as
  67         // the content of our screen.
  68         setContentView(R.layout.translucent_background);
  69     }
  70 }