Merge "[Audiosharing] Display broadcast QR code." into main

res/xml/bluetooth_audio_streams_qr_code.xml

@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:clipToPadding="false"
+        android:paddingLeft="25dp"
+        android:paddingRight="25dp"
+        android:gravity="center_horizontal"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@android:id/summary"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="start"
+            android:textSize="15sp"
+            android:textColor="?android:attr/textColorPrimary"
+            android:text="Scan this QR code with another device connected to LE audio headphones to start sharing audio"/>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:orientation="vertical"
+            android:paddingTop="70dp">
+
+            <ImageView
+                android:id="@+id/qrcode_view"
+                android:layout_width="@dimen/qrcode_size"
+                android:layout_height="@dimen/qrcode_size"
+                android:src="@android:color/transparent"/>
+        </LinearLayout>
+
+    </LinearLayout>
+
+</LinearLayout>

src/com/android/settings/connecteddevice/audiosharing/AudioSharingNamePreference.java

@@ -16,6 +16,7 @@
 
 package com.android.settings.connecteddevice.audiosharing;
 
+import android.app.settings.SettingsEnums;
 import android.content.Context;
 import android.util.AttributeSet;
 import android.widget.ImageButton;
@@ -23,6 +24,7 @@ import android.widget.ImageButton;
 import androidx.preference.PreferenceViewHolder;
 
 import com.android.settings.R;
+import com.android.settings.core.SubSettingLauncher;
 import com.android.settings.widget.ValidatedEditTextPreference;
 
 public class AudioSharingNamePreference extends ValidatedEditTextPreference {
@@ -60,5 +62,12 @@ public class AudioSharingNamePreference extends ValidatedEditTextPreference {
         super.onBindViewHolder(holder);
         final ImageButton shareButton = (ImageButton) holder.findViewById(R.id.button_icon);
         shareButton.setImageDrawable(getContext().getDrawable(R.drawable.ic_qrcode_24dp));
+        shareButton.setOnClickListener(
+                unused ->
+                        new SubSettingLauncher(getContext())
+                                .setTitleText("Audio sharing QR code")
+                                .setDestination(AudioStreamsQrCodeFragment.class.getName())
+                                .setSourceMetricsCategory(SettingsEnums.AUDIO_SHARING_SETTINGS)
+                                .launch());
     }
 }

src/com/android/settings/connecteddevice/audiosharing/AudioStreamsQrCodeFragment.java

@@ -0,0 +1,97 @@
+/*
+ * 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;
+
+import android.bluetooth.BluetoothLeBroadcastMetadata;
+import android.graphics.Bitmap;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+
+import com.android.settings.R;
+import com.android.settings.bluetooth.Utils;
+import com.android.settings.core.InstrumentedFragment;
+import com.android.settingslib.bluetooth.BluetoothLeBroadcastMetadataExt;
+import com.android.settingslib.bluetooth.LocalBluetoothLeBroadcast;
+import com.android.settingslib.qrcode.QrCodeGenerator;
+
+import com.google.zxing.WriterException;
+
+import java.util.Optional;
+
+public class AudioStreamsQrCodeFragment extends InstrumentedFragment {
+    private static final String TAG = "AudioStreamsQrCodeFragment";
+
+    @Override
+    public int getMetricsCategory() {
+        // TODO(chelseahao): update metrics id
+        return 0;
+    }
+
+    @Override
+    public final View onCreateView(
+            LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.xml.bluetooth_audio_streams_qr_code, container, false);
+        getQrCodeBitmap().ifPresent(
+                bm -> ((ImageView) view.requireViewById(R.id.qrcode_view)).setImageBitmap(bm));
+        return view;
+    }
+
+    private Optional<Bitmap> getQrCodeBitmap() {
+        String broadcastMetadata = getBroadcastMetadataQrCode();
+        if (broadcastMetadata.isEmpty()) {
+            Log.d(TAG, "onCreateView: broadcastMetadata is empty!");
+            return Optional.empty();
+        }
+
+        try {
+            int qrcodeSize = getContext().getResources().getDimensionPixelSize(R.dimen.qrcode_size);
+            Bitmap bitmap = QrCodeGenerator.encodeQrCode(broadcastMetadata, qrcodeSize);
+            return Optional.of(bitmap);
+        } catch (WriterException e) {
+            Log.d(TAG, "onCreateView: broadcastMetadata "
+                    + broadcastMetadata
+                    + " qrCode generation exception "
+                    + e);
+        }
+
+        return Optional.empty();
+    }
+
+    private String getBroadcastMetadataQrCode() {
+        LocalBluetoothLeBroadcast localBluetoothLeBroadcast =
+                Utils.getLocalBtManager(getActivity())
+                        .getProfileManager()
+                        .getLeAudioBroadcastProfile();
+        if (localBluetoothLeBroadcast == null) {
+            Log.d(TAG, "getBroadcastMetadataQrCode: localBluetoothLeBroadcast is null!");
+            return "";
+        }
+
+        BluetoothLeBroadcastMetadata metadata =
+                localBluetoothLeBroadcast.getLatestBluetoothLeBroadcastMetadata();
+        if (metadata == null) {
+            Log.d(TAG, "getBroadcastMetadataQrCode: metadata is null!");
+            return "";
+        }
+
+        return BluetoothLeBroadcastMetadataExt.INSTANCE.toQrCodeString(metadata);
+    }
+}