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 com.example.android.apis.app;
18 
19 // Need the following import to get access to the app resources, since this
20 // class is in a sub-package.
21 import com.example.android.apis.R;
22 
23 import android.app.Activity;
24 import android.os.Bundle;
25 import android.view.WindowManager;
26 
27 
28 /**
29  * <h3>Fancy Blur Activity</h3>
30  *
31  * <p>This demonstrates the how to write an activity that is translucent,
32  * allowing windows underneath to show through, with a fancy blur
33  * compositing effect.</p>
34  */
35 public class TranslucentBlurActivity extends Activity {
36     /**
37      * Initialization of the Activity after it is first created.  Must at least
38      * call {@link android.app.Activity#setContentView setContentView()} to
39      * describe what is to be displayed in the screen.
40      */
41     @Override
onCreate(Bundle icicle)42     protected void onCreate(Bundle icicle) {
43         // Be sure to call the super class.
44         super.onCreate(icicle);
45 
46         // Have the system blur any windows behind this one.
47         getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND,
48                 WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
49 
50         // See assets/res/any/layout/translucent_background.xml for this
51         // view layout definition, which is being set here as
52         // the content of our screen.
53         setContentView(R.layout.translucent_background);
54     }
55 }
56