system activity for scan always available setting
Takes user permission via a dialog to enable scans to be always available.
Bug: 8141918
Change-Id: I1e5e45e514726c2cbfd86e747123e477e00fd7ed
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 4668dd9..abbd703 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1179,6 +1179,15 @@
</intent-filter>
</activity>
+ <activity android:name=".wifi.WifiScanModeActivity"
+ android:excludeFromRecents="true"
+ android:theme="@style/Transparent">
+ <intent-filter>
+ <action android:name="android.net.wifi.action.REQUEST_SCAN_ALWAYS_AVAILABLE" />
+ <category android:name="android.intent.category.DEFAULT" />
+ </intent-filter>
+ </activity>
+
<activity android:name=".bluetooth.RequestPermissionHelperActivity"
android:label="@string/bluetooth_pairing_request"
android:excludeFromRecents="true"
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 1e19d28..4aab395 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1433,6 +1433,9 @@
<!-- Do not translate. Concise terminology for wifi with 802.1x EAP security -->
<string name="wifi_security_eap">802.1x EAP</string>
+ <string name="wifi_scan_always_turnon_message">To improve location accuracy and for other purposes, <xliff:g id="app_name">%1$s</xliff:g> wants to turn on network scanning, even when Wi-Fi is off.\n\nAllow this for all apps that want to scan?</string>
+ <string name="wifi_scan_always_confirm_allow">Allow</string>
+ <string name="wifi_scan_always_confirm_deny">Deny</string>
<!-- Button label to connect to a Wi-Fi network -->
<string name="wifi_connect">Connect</string>
diff --git a/src/com/android/settings/wifi/WifiScanModeActivity.java b/src/com/android/settings/wifi/WifiScanModeActivity.java
new file mode 100644
index 0000000..b83b22f
--- /dev/null
+++ b/src/com/android/settings/wifi/WifiScanModeActivity.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.wifi;
+
+import com.android.settings.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.DialogFragment;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.wifi.WifiManager;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.util.Log;
+
+/**
+ * This activity requests users permission to allow scanning even when Wi-Fi is turned off
+ */
+public class WifiScanModeActivity extends Activity {
+ private DialogFragment mDialog;
+ private String mApp;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ Intent intent = getIntent();
+ if (savedInstanceState == null) {
+ if (intent != null && intent.getAction()
+ .equals(WifiManager.ACTION_REQUEST_SCAN_ALWAYS_AVAILABLE)) {
+ mApp = getCallingPackage();
+ } else {
+ finish();
+ return;
+ }
+ } else {
+ mApp = savedInstanceState.getString("app");
+ }
+ createDialog();
+ }
+
+ private void createDialog() {
+ if (mDialog == null) {
+ mDialog = AlertDialogFragment.newInstance(mApp);
+ mDialog.show(getFragmentManager(), "dialog");
+ }
+ }
+
+ private void dismissDialog() {
+ if (mDialog != null) {
+ mDialog.dismiss();
+ mDialog = null;
+ }
+ }
+
+ private void doPositiveClick() {
+ Settings.Global.putInt(getContentResolver(),
+ Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 1);
+ setResult(RESULT_OK);
+ finish();
+ }
+
+ private void doNegativeClick() {
+ setResult(RESULT_CANCELED);
+ finish();
+ }
+
+ @Override
+ public void onSaveInstanceState(Bundle outState) {
+ super.onSaveInstanceState(outState);
+ outState.putString("app", mApp);
+ }
+
+ @Override
+ public void onPause() {
+ super.onPause();
+ dismissDialog();
+ }
+
+ public void onResume() {
+ super.onResume();
+ createDialog();
+ }
+
+ public static class AlertDialogFragment extends DialogFragment {
+ static AlertDialogFragment newInstance(String app) {
+ AlertDialogFragment frag = new AlertDialogFragment(app);
+ return frag;
+ }
+
+ private final String mApp;
+ public AlertDialogFragment(String app) {
+ super();
+ mApp = app;
+ }
+
+ public AlertDialogFragment() {
+ super();
+ mApp = null;
+ }
+
+ @Override
+ public Dialog onCreateDialog(Bundle savedInstanceState) {
+ return new AlertDialog.Builder(getActivity())
+ .setMessage(getString(R.string.wifi_scan_always_turnon_message, mApp))
+ .setPositiveButton(R.string.wifi_scan_always_confirm_allow,
+ new DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialog, int whichButton) {
+ ((WifiScanModeActivity) getActivity()).doPositiveClick();
+ }
+ }
+ )
+ .setNegativeButton(R.string.wifi_scan_always_confirm_deny,
+ new DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialog, int whichButton) {
+ ((WifiScanModeActivity) getActivity()).doNegativeClick();
+ }
+ }
+ )
+ .create();
+ }
+ @Override
+ public void onCancel(DialogInterface dialog) {
+ ((WifiScanModeActivity) getActivity()).doNegativeClick();
+ }
+ }
+}