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.android.internal.app; 18 19 import android.app.Activity; 20 import android.app.Dialog; 21 import android.content.DialogInterface; 22 import android.os.Bundle; 23 import android.view.KeyEvent; 24 import android.view.ViewGroup; 25 import android.view.accessibility.AccessibilityEvent; 26 27 /** 28 * An activity that follows the visual style of an AlertDialog. 29 * 30 * @see #mAlert 31 * @see #mAlertParams 32 * @see #setupAlert() 33 */ 34 public abstract class AlertActivity extends Activity implements DialogInterface { 35 36 /** 37 * The model for the alert. 38 * 39 * @see #mAlertParams 40 */ 41 protected AlertController mAlert; 42 43 /** 44 * The parameters for the alert. 45 */ 46 protected AlertController.AlertParams mAlertParams; 47 48 @Override onCreate(Bundle savedInstanceState)49 protected void onCreate(Bundle savedInstanceState) { 50 super.onCreate(savedInstanceState); 51 52 mAlert = AlertController.create(this, this, getWindow()); 53 mAlertParams = new AlertController.AlertParams(this); 54 } 55 cancel()56 public void cancel() { 57 finish(); 58 } 59 dismiss()60 public void dismiss() { 61 // This is called after the click, since we finish when handling the 62 // click, don't do that again here. 63 if (!isFinishing()) { 64 finish(); 65 } 66 } 67 68 @Override dispatchPopulateAccessibilityEvent(AccessibilityEvent event)69 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 70 return dispatchPopulateAccessibilityEvent(this, event); 71 } 72 dispatchPopulateAccessibilityEvent(Activity act, AccessibilityEvent event)73 public static boolean dispatchPopulateAccessibilityEvent(Activity act, 74 AccessibilityEvent event) { 75 event.setClassName(Dialog.class.getName()); 76 event.setPackageName(act.getPackageName()); 77 78 ViewGroup.LayoutParams params = act.getWindow().getAttributes(); 79 boolean isFullScreen = (params.width == ViewGroup.LayoutParams.MATCH_PARENT) && 80 (params.height == ViewGroup.LayoutParams.MATCH_PARENT); 81 event.setFullScreen(isFullScreen); 82 83 return false; 84 } 85 86 /** 87 * Sets up the alert, including applying the parameters to the alert model, 88 * and installing the alert's content. 89 * 90 * @see #mAlert 91 * @see #mAlertParams 92 */ setupAlert()93 protected void setupAlert() { 94 mAlert.installContent(mAlertParams); 95 } 96 97 @Override onKeyDown(int keyCode, KeyEvent event)98 public boolean onKeyDown(int keyCode, KeyEvent event) { 99 if (mAlert.onKeyDown(keyCode, event)) return true; 100 return super.onKeyDown(keyCode, event); 101 } 102 103 @Override onKeyUp(int keyCode, KeyEvent event)104 public boolean onKeyUp(int keyCode, KeyEvent event) { 105 if (mAlert.onKeyUp(keyCode, event)) return true; 106 return super.onKeyUp(keyCode, event); 107 } 108 } 109