Add sample rate preference controller for Bluetooth developer option

Bug: 142227996 Test: make -j50 RunSettingsRoboTests Change-Id: I84198ae04221c2f28c1d8e596e4a8f295e7a76d1
2019-12-09 13:56:54 +08:00
parent e7e4dd905a
commit 6ba89c33a4
2 changed files with 271 additions and 0 deletions
--- a/src/com/android/settings/development/bluetooth/BluetoothSampleRateDialogPreferenceController.java
+++ b/src/com/android/settings/development/bluetooth/BluetoothSampleRateDialogPreferenceController.java
@@ -0,0 +1,133 @@
+/*
+ * 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.BluetoothCodecConfig;
+import android.content.Context;
+import android.util.Log;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.development.BluetoothA2dpConfigStore;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Dialog preference controller to set the Bluetooth A2DP config of sample rate
+ */
+public class BluetoothSampleRateDialogPreferenceController extends
+        AbstractBluetoothDialogPreferenceController {
+
+    private static final String KEY = "bluetooth_sample_rate_settings";
+    private static final String TAG = "BtSampleRateCtr";
+
+    public BluetoothSampleRateDialogPreferenceController(Context context, Lifecycle lifecycle,
+                                                         BluetoothA2dpConfigStore store) {
+        super(context, lifecycle, store);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        ((BaseBluetoothDialogPreference) mPreference).setCallback(this);
+    }
+
+    @Override
+    protected void writeConfigurationValues(final int index) {
+        int sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_NONE; // default
+        switch (index) {
+            case 0:
+                final BluetoothCodecConfig currentConfig = getCurrentCodecConfig();
+                if (currentConfig != null) {
+                    sampleRateValue = getHighestSampleRate(getSelectableByCodecType(
+                            currentConfig.getCodecType()));
+                }
+                break;
+            case 1:
+                sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_44100;
+                break;
+            case 2:
+                sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_48000;
+                break;
+            case 3:
+                sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_88200;
+                break;
+            case 4:
+                sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_96000;
+                break;
+            default:
+                break;
+        }
+        mBluetoothA2dpConfigStore.setSampleRate(sampleRateValue);
+    }
+
+    @Override
+    protected int getCurrentIndexByConfig(BluetoothCodecConfig config) {
+        if (config == null) {
+            Log.e(TAG, "Unable to get current config index. Config is null.");
+        }
+        return convertCfgToBtnIndex(config.getSampleRate());
+    }
+
+    @Override
+    public List<Integer> getSelectableIndex() {
+        List<Integer> selectableIndex = new ArrayList<>();
+        selectableIndex.add(getDefaultIndex());
+        final BluetoothCodecConfig currentConfig = getCurrentCodecConfig();
+        if (currentConfig != null) {
+            final int configs =
+                    getSelectableByCodecType(currentConfig.getCodecType()).getSampleRate();
+            for (int sampleRate : SAMPLE_RATES) {
+                if ((configs & sampleRate) != 0) {
+                    selectableIndex.add(convertCfgToBtnIndex(sampleRate));
+                }
+            }
+        }
+        return selectableIndex;
+    }
+
+    @VisibleForTesting
+    int convertCfgToBtnIndex(int config) {
+        int index = getDefaultIndex();
+        switch (config) {
+            case BluetoothCodecConfig.SAMPLE_RATE_44100:
+                index = 1;
+                break;
+            case BluetoothCodecConfig.SAMPLE_RATE_48000:
+                index = 2;
+                break;
+            case BluetoothCodecConfig.SAMPLE_RATE_88200:
+                index = 3;
+                break;
+            case BluetoothCodecConfig.SAMPLE_RATE_96000:
+                index = 4;
+                break;
+            default:
+                Log.e(TAG, "Unsupported config:" + config);
+                break;
+        }
+        return index;
+    }
+}