1 /* 2 * Copyright (C) 2010 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.view; 18 19 import com.example.android.apis.R; 20 21 import android.content.Context; 22 import android.util.AttributeSet; 23 import android.view.View; 24 import android.view.ViewGroup; 25 26 /** 27 * This view is part of the {@link SecureView} demonstration activity. 28 * 29 * This view is constructed in such a way as to obscure the buttons and descriptive 30 * text of the activity in a poor attempt to fool the user into clicking on the buttons 31 * despite the activity telling the user that they may be harmful. 32 */ 33 public class SecureViewOverlay extends ViewGroup { 34 private SecureView mActivity; 35 SecureViewOverlay(Context context, AttributeSet attrs)36 public SecureViewOverlay(Context context, AttributeSet attrs) { 37 super(context, attrs); 38 } 39 setActivityToSpoof(SecureView activity)40 public void setActivityToSpoof(SecureView activity) { 41 this.mActivity = activity; 42 } 43 44 @Override onMeasure(int widthMeasureSpec, int heightMeasureSpec)45 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 46 measureChildren(widthMeasureSpec, heightMeasureSpec); 47 48 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 49 } 50 51 @Override onLayout(boolean changed, int l, int t, int r, int b)52 protected void onLayout(boolean changed, int l, int t, int r, int b) { 53 spoofLayout(findViewById(R.id.secure_view_overlay_description), 54 mActivity.findViewById(R.id.secure_view_description)); 55 spoofLayout(findViewById(R.id.secure_view_overlay_button1), 56 mActivity.findViewById(R.id.secure_view_unsecure_button)); 57 spoofLayout(findViewById(R.id.secure_view_overlay_button2), 58 mActivity.findViewById(R.id.secure_view_builtin_secure_button)); 59 spoofLayout(findViewById(R.id.secure_view_overlay_button3), 60 mActivity.findViewById(R.id.secure_view_custom_secure_button)); 61 } 62 spoofLayout(View spoof, View original)63 private void spoofLayout(View spoof, View original) { 64 final int[] globalPos = new int[2]; 65 getLocationOnScreen(globalPos); 66 int x = globalPos[0]; 67 int y = globalPos[1]; 68 69 original.getLocationOnScreen(globalPos); 70 x = globalPos[0] - x; 71 y = globalPos[1] - y; 72 spoof.layout(x, y, x + original.getWidth(), y + original.getHeight()); 73 } 74 } 75