Add audio switch UI in sound settings

- Build two controller to control list preferences. - MediaOutputPreferenceController which allows switching the media output between current device and connected BT device supporting A2DP. It also controls disabling media output switching during a call or cast mode. - HandsFreeProfilePreferenceController which allows switching between HFP-connected BT devices while in on-call state. - Add test cases for controllers. Bug: 74130772 Test: make RunSettingsRoboTests ROBOTEST_FILTER="MediaOutputPreferenceControllerTest" -j56 Test: make RunSettingsRoboTests ROBOTEST_FILTER="HandsFreeProfileOutputPreferenceControllerTest" -j56 Test: make RunSettingsRoboTests ROBOTEST_FILTER="AudioOutputSwitchPreferenceControllerTest" -j56 Change-Id: I37f5418442ce77e72cdff07f071ea519ab1047f3
2018-03-23 16:57:51 +08:00
parent 751a3953da
commit 63bdfa8998
11 changed files with 1485 additions and 7 deletions
--- a/src/com/android/settings/sound/MediaOutputPreferenceController.java
+++ b/src/com/android/settings/sound/MediaOutputPreferenceController.java
@@ -0,0 +1,116 @@
+/*
+ * 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.sound;
+
+import static android.media.MediaRouter.ROUTE_TYPE_REMOTE_DISPLAY;
+
+import android.bluetooth.BluetoothDevice;
+import android.content.Context;
+import android.media.AudioManager;
+import android.media.MediaRouter;
+import android.support.v7.preference.Preference;
+
+import com.android.internal.util.ArrayUtils;
+import com.android.settings.R;
+import com.android.settingslib.bluetooth.A2dpProfile;
+
+
+/**
+ * This class which allows switching between a2dp-connected BT devices.
+ * A few conditions will disable this switcher:
+ * - No available BT device(s)
+ * - Media stream captured by cast device
+ * - During a call.
+ */
+public class MediaOutputPreferenceController extends AudioSwitchPreferenceController {
+
+    public MediaOutputPreferenceController(Context context, String key) {
+        super(context, key);
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        if (preference == null) {
+            // In case UI is not ready.
+            return;
+        }
+
+        if (mAudioManager.isMusicActiveRemotely() || isCastDevice(mMediaRouter)) {
+            // TODO(76455906): Workaround for cast mode, need a solid way to identify cast mode.
+            // In cast mode, disable switch entry.
+            preference.setEnabled(false);
+            preference.setSummary(mContext.getText(R.string.media_output_summary_unavailable));
+            return;
+        }
+
+        if (isOngoingCallStatus()) {
+            // Ongoing call status, switch entry for media will be disabled.
+            preference.setEnabled(false);
+            preference.setSummary(
+                    mContext.getText(R.string.media_out_summary_ongoing_call_state));
+            return;
+        }
+
+        // Otherwise, list all of the A2DP connected device and display the active device.
+        mConnectedDevices = null;
+        BluetoothDevice activeDevice = null;
+        if (mAudioManager.getMode() == AudioManager.MODE_NORMAL) {
+            final A2dpProfile a2dpProfile = mProfileManager.getA2dpProfile();
+            if (a2dpProfile != null) {
+                mConnectedDevices = a2dpProfile.getConnectedDevices();
+                activeDevice = a2dpProfile.getActiveDevice();
+            }
+        }
+
+        final int numDevices = ArrayUtils.size(mConnectedDevices);
+        if (numDevices == 0) {
+            // Disable switch entry if there is no connected devices.
+            preference.setEnabled(false);
+            preference.setSummary(mContext.getText(R.string.media_output_default_summary));
+            return;
+        }
+
+        preference.setEnabled(true);
+        CharSequence[] mediaOutputs = new CharSequence[numDevices + 1];
+        CharSequence[] mediaValues = new CharSequence[numDevices + 1];
+
+        // Setup devices entries, select active connected device
+        setupPreferenceEntries(mediaOutputs, mediaValues, activeDevice);
+
+        if (mAudioManager.isWiredHeadsetOn() && !mAudioManager.isBluetoothA2dpOn()) {
+            // If wired headset is plugged in and active, select to default device.
+            mSelectedIndex = getDefaultDeviceIndex();
+        }
+
+        // Display connected devices, default device and show the active device
+        setPreference(mediaOutputs, mediaValues, preference);
+    }
+
+    @Override
+    public void setActiveBluetoothDevice(BluetoothDevice device) {
+        if (mAudioManager.getMode() == AudioManager.MODE_NORMAL) {
+            mProfileManager.getA2dpProfile().setActiveDevice(device);
+        }
+    }
+
+    private static boolean isCastDevice(MediaRouter mediaRouter) {
+        final MediaRouter.RouteInfo selected = mediaRouter.getSelectedRoute(
+                ROUTE_TYPE_REMOTE_DISPLAY);
+        return selected != null && selected.getPresentationDisplay() != null
+                && selected.getPresentationDisplay().isValid();
+    }
+}