1 /* 2 * Copyright (C) 2013 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.settings; 18 19 import android.app.Activity; 20 import android.app.AlertDialog; 21 import android.content.DialogInterface; 22 import android.content.res.Resources; 23 import android.graphics.drawable.Drawable; 24 import android.os.Bundle; 25 import android.os.SystemProperties; 26 import android.text.TextUtils; 27 import android.view.Gravity; 28 import android.view.View; 29 import android.widget.ImageView; 30 import android.widget.TextView; 31 32 /** 33 * {@link Activity} that displays regulatory information for the "Regulatory information" 34 * preference item, and when "*#07#" is dialed on the Phone keypad. To enable this feature, 35 * set the "config_show_regulatory_info" boolean to true in a device overlay resource, and in the 36 * same overlay, either add a drawable named "regulatory_info.png" containing a graphical version 37 * of the required regulatory info (If ro.bootloader.hardware.sku property is set use 38 * "regulatory_info_<sku>.png where sku is ro.bootloader.hardware.sku property value in lowercase"), 39 * or add a string resource named "regulatory_info_text" with an HTML version of the required 40 * information (text will be centered in the dialog). 41 */ 42 public class RegulatoryInfoDisplayActivity extends Activity implements 43 DialogInterface.OnDismissListener { 44 private final String REGULATORY_INFO_RESOURCE = "regulatory_info"; 45 46 /** 47 * Display the regulatory info graphic in a dialog window. 48 */ 49 @Override onCreate(Bundle savedInstanceState)50 protected void onCreate(Bundle savedInstanceState) { 51 super.onCreate(savedInstanceState); 52 Resources resources = getResources(); 53 54 if (!resources.getBoolean(R.bool.config_show_regulatory_info)) { 55 finish(); // no regulatory info to display for this device 56 } 57 58 AlertDialog.Builder builder = new AlertDialog.Builder(this) 59 .setTitle(R.string.regulatory_information) 60 .setOnDismissListener(this); 61 62 boolean regulatoryInfoDrawableExists = false; 63 int resId = getResourceId(); 64 if (resId != 0) { 65 try { 66 Drawable d = getDrawable(resId); 67 // set to false if the width or height is <= 2 68 // (missing PNG can return an empty 2x2 pixel Drawable) 69 regulatoryInfoDrawableExists = (d.getIntrinsicWidth() > 2 70 && d.getIntrinsicHeight() > 2); 71 } catch (Resources.NotFoundException ignored) { 72 regulatoryInfoDrawableExists = false; 73 } 74 } 75 76 CharSequence regulatoryText = resources.getText(R.string.regulatory_info_text); 77 78 if (regulatoryInfoDrawableExists) { 79 View view = getLayoutInflater().inflate(R.layout.regulatory_info, null); 80 ImageView image = (ImageView) view.findViewById(R.id.regulatoryInfo); 81 image.setImageResource(resId); 82 builder.setView(view); 83 builder.show(); 84 } else if (regulatoryText.length() > 0) { 85 builder.setMessage(regulatoryText); 86 AlertDialog dialog = builder.show(); 87 // we have to show the dialog first, or the setGravity() call will throw a NPE 88 TextView messageText = (TextView) dialog.findViewById(android.R.id.message); 89 messageText.setGravity(Gravity.CENTER); 90 } else { 91 // neither drawable nor text resource exists, finish activity 92 finish(); 93 } 94 } 95 getResourceId()96 private int getResourceId() { 97 // Use regulatory_info by default. 98 int resId = getResources().getIdentifier( 99 REGULATORY_INFO_RESOURCE, "drawable", getPackageName()); 100 101 // When hardware sku property exists, use regulatory_info_<sku> resource if valid. 102 String sku = SystemProperties.get("ro.boot.hardware.sku", ""); 103 if (!TextUtils.isEmpty(sku)) { 104 String regulatory_info_res = REGULATORY_INFO_RESOURCE + "_" + sku.toLowerCase(); 105 int id = getResources().getIdentifier( 106 regulatory_info_res, "drawable", getPackageName()); 107 if (id != 0) { 108 resId = id; 109 } 110 } 111 return resId; 112 } 113 114 @Override onDismiss(DialogInterface dialog)115 public void onDismiss(DialogInterface dialog) { 116 finish(); // close the activity 117 } 118 } 119