[Audiosharing] Send intent to the qr code scanner.

Bug: 308368124
Test: Manual
Change-Id: I45abe790caecc6eb86e4ada2827ed740a5ee6a46

res/xml/bluetooth_audio_streams.xml

@@ -24,7 +24,8 @@
         android:key="audio_streams_scan_qr_code"
         android:title="@string/bluetooth_find_broadcast_button_scan"
         android:icon="@drawable/ic_add_24dp"
-        android:summary="@string/audio_streams_qr_code_summary" />
+        android:summary="@string/audio_streams_qr_code_summary"
+        settings:controller="com.android.settings.connecteddevice.audiosharing.audiostreams.AudioStreamsScanQrCodeController" />
 
     <Preference
         android:key="audio_streams_active_device"

src/com/android/settings/connecteddevice/audiosharing/audiostreams/AudioStreamsDashboardFragment.java

@@ -17,6 +17,7 @@
 package com.android.settings.connecteddevice.audiosharing.audiostreams;
 
 import android.content.Context;
+import android.content.Intent;
 import android.os.Bundle;
 
 import com.android.settings.R;
@@ -58,10 +59,17 @@ public class AudioStreamsDashboardFragment extends DashboardFragment {
     @Override
     public void onAttach(Context context) {
         super.onAttach(context);
+        use(AudioStreamsScanQrCodeController.class).setFragment(this);
     }
 
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
     }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        // TODO(chelseahao): implementation.
+    }
 }

src/com/android/settings/connecteddevice/audiosharing/audiostreams/AudioStreamsScanQrCodeController.java

@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2023 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.connecteddevice.audiosharing.audiostreams;
+
+import android.bluetooth.BluetoothProfile;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.lifecycle.DefaultLifecycleObserver;
+import androidx.lifecycle.LifecycleOwner;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.bluetooth.Utils;
+import com.android.settings.connecteddevice.audiosharing.AudioSharingUtils;
+import com.android.settings.connecteddevice.audiosharing.audiostreams.qrcode.QrCodeScanModeActivity;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.bluetooth.BluetoothBroadcastUtils;
+import com.android.settingslib.bluetooth.BluetoothCallback;
+import com.android.settingslib.bluetooth.BluetoothUtils;
+import com.android.settingslib.bluetooth.CachedBluetoothDevice;
+import com.android.settingslib.bluetooth.LocalBluetoothManager;
+import com.android.settingslib.utils.ThreadUtils;
+
+public class AudioStreamsScanQrCodeController extends BasePreferenceController
+        implements DefaultLifecycleObserver {
+    private static final String TAG = "AudioStreamsProgressCategoryController";
+    private static final boolean DEBUG = BluetoothUtils.D;
+    private static final String KEY = "audio_streams_scan_qr_code";
+    private static final int REQUEST_SCAN_BT_BROADCAST_QR_CODE = 0;
+    private final BluetoothCallback mBluetoothCallback =
+            new BluetoothCallback() {
+                @Override
+                public void onActiveDeviceChanged(
+                        @Nullable CachedBluetoothDevice activeDevice, int bluetoothProfile) {
+                    if (bluetoothProfile == BluetoothProfile.LE_AUDIO) {
+                        updateVisibility();
+                    }
+                }
+            };
+
+    private final LocalBluetoothManager mLocalBtManager;
+    private AudioStreamsDashboardFragment mFragment;
+    private Preference mPreference;
+
+    public AudioStreamsScanQrCodeController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+        mLocalBtManager = Utils.getLocalBtManager(mContext);
+    }
+
+    public void setFragment(AudioStreamsDashboardFragment fragment) {
+        mFragment = fragment;
+    }
+
+    @Override
+    public void onStart(@NonNull LifecycleOwner owner) {
+        if (mLocalBtManager != null) {
+            mLocalBtManager.getEventManager().registerCallback(mBluetoothCallback);
+        }
+    }
+
+    @Override
+    public void onStop(@NonNull LifecycleOwner owner) {
+        if (mLocalBtManager != null) {
+            mLocalBtManager.getEventManager().unregisterCallback(mBluetoothCallback);
+        }
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = screen.findPreference(getPreferenceKey());
+        if (mPreference == null) {
+            Log.w(TAG, "displayPreference() mPreference is null!");
+            return;
+        }
+        mPreference.setOnPreferenceClickListener(
+                preference -> {
+                    if (mFragment == null) {
+                        Log.w(TAG, "displayPreference() mFragment is null!");
+                        return false;
+                    }
+                    if (preference.getKey().equals(KEY)) {
+                        Intent intent = new Intent(mContext, QrCodeScanModeActivity.class);
+                        intent.setAction(
+                                BluetoothBroadcastUtils.ACTION_BLUETOOTH_LE_AUDIO_QR_CODE_SCANNER);
+                        mFragment.startActivityForResult(intent, REQUEST_SCAN_BT_BROADCAST_QR_CODE);
+                        if (DEBUG) {
+                            Log.w(TAG, "displayPreference() sent intent : " + intent);
+                        }
+                        return true;
+                    }
+                    return false;
+                });
+    }
+
+    private void updateVisibility() {
+        ThreadUtils.postOnBackgroundThread(
+                () -> {
+                    boolean hasActiveLe =
+                            AudioSharingUtils.getActiveSinkOnAssistant(mLocalBtManager).isPresent();
+                    ThreadUtils.postOnMainThread(() -> mPreference.setVisible(hasActiveLe));
+                });
+    }
+}

src/com/android/settings/connecteddevice/audiosharing/audiostreams/qrcode/QrCodeScanModeActivity.java

@@ -16,10 +16,6 @@
 
 package com.android.settings.connecteddevice.audiosharing.audiostreams.qrcode;
 
-import static com.android.settingslib.bluetooth.BluetoothBroadcastUtils.EXTRA_BLUETOOTH_DEVICE_SINK;
-import static com.android.settingslib.bluetooth.BluetoothBroadcastUtils.EXTRA_BLUETOOTH_SINK_IS_GROUP;
-
-import android.bluetooth.BluetoothDevice;
 import android.content.Intent;
 import android.os.Bundle;
 import android.util.Log;
@@ -44,9 +40,6 @@ public class QrCodeScanModeActivity extends QrCodeScanModeBaseActivity {
     private static final boolean DEBUG = BluetoothUtils.D;
     private static final String TAG = "QrCodeScanModeActivity";
 
-    private boolean mIsGroupOp;
-    private BluetoothDevice mSink;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -88,8 +81,6 @@ public class QrCodeScanModeActivity extends QrCodeScanModeBaseActivity {
             Log.d(TAG, "showQrCodeScannerFragment");
         }
 
-        mSink = intent.getParcelableExtra(EXTRA_BLUETOOTH_DEVICE_SINK);
-        mIsGroupOp = intent.getBooleanExtra(EXTRA_BLUETOOTH_SINK_IS_GROUP, false);
         if (DEBUG) {
             Log.d(TAG, "get extra from intent");
         }