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 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
