BLE peripheral mode (4/4): Settings change for advertising preference.

Change-Id: I5721f136267fe25e55f764bb4a6c53acd45b318b

src/com/android/settings/bluetooth/LocalBluetoothPreferences.java

@@ -17,8 +17,10 @@
 package com.android.settings.bluetooth;
 
 import android.app.QueuedWork;
+import android.bluetooth.BluetoothAdapter;
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
 import android.content.res.Configuration;
 import android.util.Log;
 
@@ -46,6 +48,10 @@ final class LocalBluetoothPreferences {
 
     private static final String KEY_DISCOVERABLE_END_TIMESTAMP = "discoverable_end_timestamp";
 
+    private static final String KEY_ADVERTISEMENT_PREFERENCE = "bt_advertisement_perference";
+
+    private static final boolean DEFAULT_ADVERTISING_ENABLED = false;
+
     private LocalBluetoothPreferences() {
     }
 
@@ -58,6 +64,17 @@ final class LocalBluetoothPreferences {
                 KEY_DISCOVERABLE_END_TIMESTAMP, 0);
     }
 
+    static boolean isAdvertisingEnabled(Context context) {
+        return getSharedPreferences(context).getBoolean(
+                KEY_ADVERTISEMENT_PREFERENCE, DEFAULT_ADVERTISING_ENABLED);
+    }
+
+    static void setAdvertisingEnabled(Context context, boolean advertisingEnabled) {
+        Editor preferenceEditor = getSharedPreferences(context).edit();
+        preferenceEditor.putBoolean(KEY_ADVERTISEMENT_PREFERENCE, advertisingEnabled);
+        preferenceEditor.apply();
+    }
+
     static boolean shouldShowDialogInForeground(Context context,
             String deviceAddress) {
         LocalBluetoothManager manager = LocalBluetoothManager.getInstance(context);