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.wifi; 18 19 import android.app.Activity; 20 import android.app.AlertDialog; 21 import android.app.Dialog; 22 import android.app.DialogFragment; 23 import android.content.DialogInterface; 24 import android.content.Intent; 25 import android.content.pm.ApplicationInfo; 26 import android.content.pm.PackageManager; 27 import android.net.wifi.WifiManager; 28 import android.os.Bundle; 29 import android.provider.Settings; 30 31 import com.android.settings.R; 32 33 /** 34 * This activity requests users permission to allow scanning even when Wi-Fi is turned off 35 */ 36 public class WifiScanModeActivity extends Activity { 37 private DialogFragment mDialog; 38 private String mApp; 39 40 @Override onCreate(Bundle savedInstanceState)41 protected void onCreate(Bundle savedInstanceState) { 42 super.onCreate(savedInstanceState); 43 Intent intent = getIntent(); 44 if (savedInstanceState == null) { 45 if (intent != null && intent.getAction() 46 .equals(WifiManager.ACTION_REQUEST_SCAN_ALWAYS_AVAILABLE)) { 47 ApplicationInfo ai; 48 mApp = getCallingPackage(); 49 try { 50 PackageManager pm = getPackageManager(); 51 ai = pm.getApplicationInfo(mApp, 0); 52 mApp = (String)pm.getApplicationLabel(ai); 53 } catch (PackageManager.NameNotFoundException e) { } 54 } else { 55 finish(); 56 return; 57 } 58 } else { 59 mApp = savedInstanceState.getString("app"); 60 } 61 createDialog(); 62 } 63 createDialog()64 private void createDialog() { 65 if (mDialog == null) { 66 mDialog = AlertDialogFragment.newInstance(mApp); 67 mDialog.show(getFragmentManager(), "dialog"); 68 } 69 } 70 dismissDialog()71 private void dismissDialog() { 72 if (mDialog != null) { 73 mDialog.dismiss(); 74 mDialog = null; 75 } 76 } 77 doPositiveClick()78 private void doPositiveClick() { 79 Settings.Global.putInt(getContentResolver(), 80 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 1); 81 setResult(RESULT_OK); 82 finish(); 83 } 84 doNegativeClick()85 private void doNegativeClick() { 86 setResult(RESULT_CANCELED); 87 finish(); 88 } 89 90 @Override onSaveInstanceState(Bundle outState)91 public void onSaveInstanceState(Bundle outState) { 92 super.onSaveInstanceState(outState); 93 outState.putString("app", mApp); 94 } 95 96 @Override onPause()97 public void onPause() { 98 super.onPause(); 99 dismissDialog(); 100 } 101 onResume()102 public void onResume() { 103 super.onResume(); 104 createDialog(); 105 } 106 107 public static class AlertDialogFragment extends DialogFragment { newInstance(String app)108 static AlertDialogFragment newInstance(String app) { 109 AlertDialogFragment frag = new AlertDialogFragment(app); 110 return frag; 111 } 112 113 private final String mApp; AlertDialogFragment(String app)114 public AlertDialogFragment(String app) { 115 super(); 116 mApp = app; 117 } 118 AlertDialogFragment()119 public AlertDialogFragment() { 120 super(); 121 mApp = null; 122 } 123 124 @Override onCreateDialog(Bundle savedInstanceState)125 public Dialog onCreateDialog(Bundle savedInstanceState) { 126 return new AlertDialog.Builder(getActivity()) 127 .setMessage(getString(R.string.wifi_scan_always_turnon_message, mApp)) 128 .setPositiveButton(R.string.wifi_scan_always_confirm_allow, 129 new DialogInterface.OnClickListener() { 130 public void onClick(DialogInterface dialog, int whichButton) { 131 ((WifiScanModeActivity) getActivity()).doPositiveClick(); 132 } 133 } 134 ) 135 .setNegativeButton(R.string.wifi_scan_always_confirm_deny, 136 new DialogInterface.OnClickListener() { 137 public void onClick(DialogInterface dialog, int whichButton) { 138 ((WifiScanModeActivity) getActivity()).doNegativeClick(); 139 } 140 } 141 ) 142 .create(); 143 } 144 @Override onCancel(DialogInterface dialog)145 public void onCancel(DialogInterface dialog) { 146 ((WifiScanModeActivity) getActivity()).doNegativeClick(); 147 } 148 } 149 } 150