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      1 /*
      2  * Copyright (C) 2014 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.example.android.permissionrequest;
     17 
     18 import android.app.AlertDialog;
     19 import android.app.Dialog;
     20 import android.content.DialogInterface;
     21 import android.os.Bundle;
     22 import android.support.v4.app.DialogFragment;
     23 import android.text.TextUtils;
     24 
     25 /**
     26  * Prompts the user to confirm permission request.
     27  */
     28 public class ConfirmationDialogFragment extends DialogFragment {
     29 
     30     private static final String ARG_RESOURCES = "resources";
     31 
     32     /**
     33      * Creates a new instance of ConfirmationDialogFragment.
     34      *
     35      * @param resources The list of resources requested by PermissionRequeste.
     36      * @return A new instance.
     37      */
     38     public static ConfirmationDialogFragment newInstance(String[] resources) {
     39         ConfirmationDialogFragment fragment = new ConfirmationDialogFragment();
     40         Bundle args = new Bundle();
     41         args.putStringArray(ARG_RESOURCES, resources);
     42         fragment.setArguments(args);
     43         return fragment;
     44     }
     45 
     46     @Override
     47     public Dialog onCreateDialog(Bundle savedInstanceState) {
     48         String[] resources = getArguments().getStringArray(ARG_RESOURCES);
     49         return new AlertDialog.Builder(getActivity())
     50                 .setMessage(getString(R.string.confirmation, TextUtils.join("\n", resources)))
     51                 .setNegativeButton(R.string.deny, new DialogInterface.OnClickListener() {
     52                     @Override
     53                     public void onClick(DialogInterface dialog, int which) {
     54                         ((Listener) getParentFragment()).onConfirmation(false);
     55                     }
     56                 })
     57                 .setPositiveButton(R.string.allow, new DialogInterface.OnClickListener() {
     58                     @Override
     59                     public void onClick(DialogInterface dialog, int which) {
     60                         ((Listener) getParentFragment()).onConfirmation(true);
     61                     }
     62                 })
     63                 .create();
     64     }
     65 
     66     /**
     67      * Callback for the user's response.
     68      */
     69     public interface Listener {
     70 
     71         /**
     72          * Called when the PermissoinRequest is allowed or denied by the user.
     73          *
     74          * @param allowed True if the user allowed the request.
     75          */
     76         public void onConfirmation(boolean allowed);
     77     }
     78 
     79 }
     80