1 /* 2 * Copyright (C) 2016 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 package com.android.phone; 17 18 import android.app.AlertDialog; 19 import android.app.Dialog; 20 import android.app.DialogFragment; 21 import android.app.Fragment; 22 import android.app.FragmentManager; 23 import android.content.Context; 24 import android.content.DialogInterface; 25 import android.content.DialogInterface.OnClickListener; 26 import android.os.Bundle; 27 import android.os.PersistableBundle; 28 import android.telephony.CarrierConfigManager; 29 30 /** 31 * A dialog fragment that asks the user if they are sure they want to turn on data roaming 32 * to avoid accidental charges. 33 */ 34 public class RoamingDialogFragment extends DialogFragment implements OnClickListener { 35 36 public static final String SUB_ID_KEY = "sub_id_key"; 37 38 private CarrierConfigManager mCarrierConfigManager; 39 private int mSubId; 40 41 /** 42 * The interface we expect a host activity to implement. 43 */ 44 public interface RoamingDialogListener { onPositiveButtonClick(DialogFragment dialog)45 void onPositiveButtonClick(DialogFragment dialog); 46 } 47 48 // the host activity which implements the listening interface 49 private RoamingDialogListener mListener; 50 51 @Override onAttach(Context context)52 public void onAttach(Context context) { 53 super.onAttach(context); 54 Bundle args = getArguments(); 55 mSubId = args.getInt(SUB_ID_KEY); 56 mCarrierConfigManager = new CarrierConfigManager(context); 57 58 // Verify host activity implemented callback interface 59 FragmentManager fragmentManager = getFragmentManager(); 60 Fragment fragment = fragmentManager.findFragmentById(R.id.network_setting_content); 61 try { 62 mListener = (RoamingDialogListener) fragment; 63 } catch (ClassCastException e) { 64 throw new ClassCastException(fragment.toString() + 65 "must implement RoamingDialogListener"); 66 } 67 } 68 69 @Override onCreateDialog(Bundle savedInstanceState)70 public Dialog onCreateDialog(Bundle savedInstanceState) { 71 AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); 72 int title = R.string.roaming_alert_title; 73 PersistableBundle carrierConfig = mCarrierConfigManager.getConfigForSubId(mSubId); 74 if (carrierConfig != null && carrierConfig.getBoolean( 75 CarrierConfigManager.KEY_CHECK_PRICING_WITH_CARRIER_FOR_DATA_ROAMING_BOOL)) { 76 title = R.string.roaming_check_price_warning; 77 } 78 builder.setMessage(getResources().getString(R.string.roaming_warning)) 79 .setTitle(title) 80 .setIconAttribute(android.R.attr.alertDialogIcon) 81 .setPositiveButton(android.R.string.yes, this) 82 .setNegativeButton(android.R.string.no, this); 83 return builder.create(); 84 } 85 86 @Override onClick(DialogInterface dialog, int which)87 public void onClick(DialogInterface dialog, int which) { 88 // let the host know that the positive button has been clicked 89 if (which == dialog.BUTTON_POSITIVE) { 90 mListener.onPositiveButtonClick(this); 91 } 92 } 93 } 94