Introduce BluetoothAudioBitsPerSamplePrefCtrl

- Create new BluetoothAudioBitsPerSamplePreferenceController
 - Create controller inside the DashboardFragment
 - Port logic from DevelopmentSettings into the controller

Bug: 34203528
Test: make RunSettingsRoboTests -j40
Change-Id: I86575d171a005f62f731d9001f08ddcf976ad826

src/com/android/settings/development/BluetoothAudioBitsPerSamplePreferenceController.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2017 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;
+
+import android.bluetooth.BluetoothCodecConfig;
+import android.content.Context;
+
+import com.android.settings.R;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+
+public class BluetoothAudioBitsPerSamplePreferenceController extends
+        AbstractBluetoothA2dpPreferenceController {
+
+    private static final int DEFAULT_INDEX = 0;
+    private static final String BLUETOOTH_SELECT_A2DP_BITS_PER_SAMPLE_KEY =
+            "bluetooth_select_a2dp_bits_per_sample";
+
+    public BluetoothAudioBitsPerSamplePreferenceController(Context context, Lifecycle lifecycle,
+            BluetoothA2dpConfigStore store) {
+        super(context, lifecycle, store);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return BLUETOOTH_SELECT_A2DP_BITS_PER_SAMPLE_KEY;
+    }
+
+    @Override
+    protected String[] getListValues() {
+        return mContext.getResources().getStringArray(
+                R.array.bluetooth_a2dp_codec_bits_per_sample_values);
+    }
+
+    @Override
+    protected String[] getListSummaries() {
+        return mContext.getResources().getStringArray(
+                R.array.bluetooth_a2dp_codec_bits_per_sample_summaries);
+    }
+
+    @Override
+    protected int getDefaultIndex() {
+        return DEFAULT_INDEX;
+    }
+
+    @Override
+    protected void writeConfigurationValues(Object newValue) {
+        final int index = mPreference.findIndexOfValue(newValue.toString());
+        int bitsPerSampleValue = BluetoothCodecConfig.BITS_PER_SAMPLE_NONE; // default
+        switch (index) {
+            case 0:
+                // Reset to default
+                break;
+            case 1:
+                bitsPerSampleValue = BluetoothCodecConfig.BITS_PER_SAMPLE_16;
+                break;
+            case 2:
+                bitsPerSampleValue = BluetoothCodecConfig.BITS_PER_SAMPLE_24;
+                break;
+            case 3:
+                bitsPerSampleValue = BluetoothCodecConfig.BITS_PER_SAMPLE_32;
+                break;
+            default:
+                break;
+        }
+        mBluetoothA2dpConfigStore.setBitsPerSample(bitsPerSampleValue);
+    }
+
+    @Override
+    protected int getCurrentA2dpSettingIndex(BluetoothCodecConfig config) {
+        final int bitsPerSample = config.getBitsPerSample();
+        int index = DEFAULT_INDEX;
+        switch (bitsPerSample) {
+            case BluetoothCodecConfig.BITS_PER_SAMPLE_16:
+                index = 1;
+                break;
+            case BluetoothCodecConfig.BITS_PER_SAMPLE_24:
+                index = 2;
+                break;
+            case BluetoothCodecConfig.BITS_PER_SAMPLE_32:
+                index = 3;
+                break;
+            case BluetoothCodecConfig.BITS_PER_SAMPLE_NONE:
+            default:
+                break;
+        }
+        return index;
+    }
+}

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -381,7 +381,8 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
                 bluetoothA2dpConfigStore));
         controllers.add(new BluetoothAudioSampleRatePreferenceController(context, lifecycle,
                 bluetoothA2dpConfigStore));
-        // bluetooth audio bits per sample
+        controllers.add(new BluetoothAudioBitsPerSamplePreferenceController(context, lifecycle,
+                bluetoothA2dpConfigStore));
         // bluetooth audio channel mode
         // bluetooth audio ldac codec: playback quality
         controllers.add(new ShowTapsPreferenceController(context));