1 files changed, 86 insertions, 0 deletions
diff --git a/src/com/android/settings/development/bluetooth/AbstractBluetoothPreferenceController.java b/src/com/android/settings/development/bluetooth/AbstractBluetoothPreferenceController.java
new file mode 100644
index 0000000000..c018bf7cf1
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+++ b/src/com/android/settings/development/bluetooth/AbstractBluetoothPreferenceController.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2019 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.development.bluetooth;
+
+import android.bluetooth.BluetoothA2dp;
+import android.content.Context;
+
+import com.android.settings.development.BluetoothA2dpConfigStore;
+import com.android.settings.development.BluetoothServiceConnectionListener;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnDestroy;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/**
+ * Abstract class for Bluetooth A2DP config controller in developer option.
+ */
+public abstract class AbstractBluetoothPreferenceController extends
+        DeveloperOptionsPreferenceController implements BluetoothServiceConnectionListener,
+        LifecycleObserver, OnDestroy {
+
+    protected final BluetoothA2dpConfigStore mBluetoothA2dpConfigStore;
+    protected volatile BluetoothA2dp mBluetoothA2dp;
+
+    public AbstractBluetoothPreferenceController(Context context, Lifecycle lifecycle,
+                                                 BluetoothA2dpConfigStore store) {
+        super(context);
+        mBluetoothA2dpConfigStore = store;
+        if (lifecycle != null) {
+            lifecycle.addObserver(this);
+        }
+    }
+
+    @Override
+    public void onBluetoothServiceConnected(BluetoothA2dp bluetoothA2dp) {
+        mBluetoothA2dp = bluetoothA2dp;
+        updateState(mPreference);
+    }
+
+    @Override
+    public void onBluetoothCodecUpdated() {
+        updateState(mPreference);
+    }
+
+    @Override
+    public void onBluetoothServiceDisconnected() {
+        mBluetoothA2dp = null;
+        updateState(mPreference);
+    }
+
+    @Override
+    public void onDestroy() {
+        mBluetoothA2dp = null;
+    }
+
+    /**
+     * Callback interface for this class to manipulate data from controller.
+     */
+    public interface Callback {
+        /**
+         * Callback method to notify preferences when the Bluetooth A2DP config is changed.
+         */
+        void onBluetoothCodecChanged();
+
+        /**
+         * Callback method to notify preferences when the HD audio(optional codec) state is changed.
+         *
+         * @param enabled Is {@code true} when the setting is enabled.
+         */
+        void onBluetoothHDAudioEnabled(boolean enabled);
+    }
+}