Add call volume in sound settings

* Add call volume slider
* move "Take call" controller from "Ring volume" to "Call volume"

Bug: 77254162
Test: make -j50 RunSettingsRoboTests

Change-Id: I3443021c1557f42293e9b7772fe9072e5a966cf8

src/com/android/settings/notification/CallVolumePreferenceController.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2018 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.notification;
+
+import android.content.Context;
+import android.media.AudioManager;
+
+import com.android.settings.R;
+
+
+public class CallVolumePreferenceController extends VolumeSeekBarPreferenceController {
+
+    private AudioManager mAudioManager;
+
+    public CallVolumePreferenceController(Context context, String key) {
+        super(context, key);
+        mAudioManager = context.getSystemService(AudioManager.class);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return mContext.getResources().getBoolean(R.bool.config_show_call_volume)
+                && !mHelper.isSingleVolume() ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+    @Override
+    public int getAudioStream() {
+        if (mAudioManager.isBluetoothScoOn()) {
+            return AudioManager.STREAM_BLUETOOTH_SCO;
+        }
+        return AudioManager.STREAM_VOICE_CALL;
+    }
+
+    @Override
+    public int getMuteIcon() {
+        // User will not be allowed to fully mute the call volume, use original
+        // icon for mute icon.
+        return R.drawable.ic_local_phone_24_lib;
+    }
+
+}