Fix discoverability timeout issues. (a) implement timeout logic (b) persist 'never timeout' after reboot (c) code cleanup

Change-Id: Ia7a8611d7212b9201994034d17da1d18e106107b

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

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008 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.bluetooth;
+
+import android.content.BroadcastReceiver;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.Intent;
+import android.bluetooth.BluetoothAdapter;
+import android.util.Log;
+
+public class BluetoothDiscoverableTimeoutReceiver extends BroadcastReceiver {
+    private static final String TAG = "BluetoothDiscoverableTimeoutReceiver";
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        LocalBluetoothAdapter localBluetoothAdapter = LocalBluetoothAdapter.getInstance();
+
+         if(null != localBluetoothAdapter && localBluetoothAdapter.getState() == BluetoothAdapter.STATE_ON) {
+            Log.d(TAG, "Disable discoverable...");
+
+            localBluetoothAdapter.setScanMode(BluetoothAdapter.SCAN_MODE_CONNECTABLE);
+         } else {
+            Log.e(TAG, "localBluetoothAdapter is NULL!!");
+        }
+    }
+};
+