Introduce volume styles

res/layout/volume_style_option.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     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.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_margin="10dp"
+    android:gravity="center"
+    android:orientation="vertical">
+
+    <FrameLayout
+        android:id="@+id/option_tile"
+        android:layout_width="match_parent"
+        android:layout_height="75dp"
+        android:gravity="center"
+        android:layout_gravity="center"
+        android:paddingHorizontal="10dp"
+        android:paddingVertical="10dp"
+        android:background="@drawable/option_border_custom">
+
+        <TextView
+            android:id="@+id/option_label"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:textAppearance="@style/OptionTitleTextAppearance"/>
+
+    </FrameLayout>
+</LinearLayout>

res/values/alpha_strings.xml

@@ -137,6 +137,11 @@
     <string name="theme_customization_notifications_title">Notifications style</string>
     <string name="theme_customization_notifications_summary">Set custom notifications style</string>
 
+    <!-- Volume panel styles -->
+    <string name="theme_customization_volume_panel_styles_title">Volume panel style</string>
+    <string name="theme_customization_volume_panel_styles_summary">Set custom volume panel style</string>
+
+
     <!-- Extra battery styles -->
     <string name="status_bar_battery_style_icon_big_circle">Big circle</string>
     <string name="status_bar_battery_style_icon_big_dotted_circle">Big dotted circle</string>

res/xml/alpha_settings_sound.xml

@@ -44,6 +44,14 @@
         android:summary="@string/volume_steps_summary"
         android:fragment="com.alpha.settings.fragments.sound.VolumeSteps" />
 
+    <!-- Volume panel styles -->
+    <Preference
+        android:key="android.theme.customization.volume_style"
+        android:icon="@drawable/ic_settings_sound"
+        android:title="@string/theme_customization_volume_panel_styles_title"
+        android:summary="@string/theme_customization_volume_panel_styles_summary"
+        android:fragment="com.alpha.settings.fragments.sound.VolumePanelStyles" />
+
     <!-- Screenshot Sound  -->
     <com.alpha.settings.preferences.SystemSettingSwitchPreference
         android:key="screenshot_shutter_sound"

src/com/alpha/settings/fragments/sound/VolumePanelStyles.java

@@ -0,0 +1,215 @@
+/*
+ * Copyright (C) 2023 crDroid Android 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.alpha.settings.fragments.sound;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.res.Resources;
+import android.content.pm.PackageManager;
+import android.graphics.drawable.AnimationDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.os.UserHandle;
+import android.provider.SearchIndexableResource;
+import android.provider.Settings;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.Gravity;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.FrameLayout;
+import android.widget.TextView;
+import android.text.TextUtils;
+import androidx.preference.PreferenceViewHolder;
+import android.view.ViewGroup.LayoutParams;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.GridLayoutManager;
+import androidx.recyclerview.widget.RecyclerView.ViewHolder;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.preference.Preference;
+import androidx.preference.Preference.OnPreferenceChangeListener;
+import androidx.preference.PreferenceScreen;
+
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.Indexable;
+import com.android.settings.SettingsPreferenceFragment;
+
+import com.bumptech.glide.Glide;
+
+import com.android.internal.util.crdroid.ThemeUtils;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Arrays;
+
+import org.json.JSONObject;
+import org.json.JSONException;
+
+public class VolumePanelStyles extends SettingsPreferenceFragment {
+
+    private RecyclerView mRecyclerView;
+    private ThemeUtils mThemeUtils;
+    private String mCategory = "android.theme.customization.volume_style";
+
+    private List<String> mPkgs;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        setCategory("android.theme.customization.volume_style");
+        String title = getContext().getString(R.string.theme_customization_volume_panel_styles_title);
+        setTitle(title);
+        super.onCreate(savedInstanceState);
+        getActivity().setTitle(R.string.theme_customization_volume_panel_styles_title);
+
+        mThemeUtils = new ThemeUtils(getActivity());
+        mPkgs = mThemeUtils.getOverlayPackagesForCategory(mCategory, "com.android.systemui");
+    }
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
+            @Nullable Bundle savedInstanceState) {
+        View view = inflater.inflate(
+                R.layout.item_view, container, false);
+
+        mRecyclerView = (RecyclerView) view.findViewById(R.id.recycler_view);
+        GridLayoutManager gridLayoutManager = new GridLayoutManager(getActivity(), 1);
+        mRecyclerView.setLayoutManager(gridLayoutManager);
+        Adapter mAdapter = new Adapter(getActivity());
+        mRecyclerView.setAdapter(mAdapter);
+
+        return view;
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsEvent.ALPHA;
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+    }
+
+    public class Adapter extends RecyclerView.Adapter<Adapter.CustomViewHolder> {
+        Context context;
+        String mSelectedPkg;
+        String mAppliedPkg;
+
+        public Adapter(Context context) {
+            this.context = context;
+        }
+
+        @Override
+        public CustomViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+            View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.volume_style_option, parent, false);
+            CustomViewHolder vh = new CustomViewHolder(v);
+            return vh;
+        }
+
+        @Override
+        public void onBindViewHolder(CustomViewHolder holder, final int position) {
+            String navPkg = mPkgs.get(position);
+
+            String currentPackageName = mThemeUtils.getOverlayInfos(mCategory, "com.android.systemui").stream()
+                .filter(info -> info.isEnabled())
+                .map(info -> info.packageName)
+                .findFirst()
+                .orElse("com.android.systemui");
+
+            holder.name.setText("com.android.systemui".equals(navPkg) ? "Default" : getLabel(holder.name.getContext(), navPkg));
+
+            holder.name.setTextSize(24);
+
+            if (currentPackageName.equals(navPkg)) {
+                mAppliedPkg = navPkg;
+                if (mSelectedPkg == null) {
+                    mSelectedPkg = navPkg;
+                }
+            }
+
+            holder.itemView.setActivated(navPkg == mSelectedPkg);
+            holder.itemView.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    updateActivatedStatus(mSelectedPkg, false);
+                    updateActivatedStatus(navPkg, true);
+                    mSelectedPkg = navPkg;
+                    enableOverlays(position);
+                }
+            });
+        }
+
+        @Override
+        public int getItemCount() {
+            return mPkgs.size();
+        }
+
+        public class CustomViewHolder extends RecyclerView.ViewHolder {
+            TextView name;
+            public CustomViewHolder(View itemView) {
+                super(itemView);
+                name = (TextView) itemView.findViewById(R.id.option_label);
+            }
+        }
+
+        private void updateActivatedStatus(String pkg, boolean isActivated) {
+            int index = mPkgs.indexOf(pkg);
+            if (index < 0) {
+                return;
+            }
+            RecyclerView.ViewHolder holder = mRecyclerView.findViewHolderForAdapterPosition(index);
+            if (holder != null && holder.itemView != null) {
+                holder.itemView.setActivated(isActivated);
+            }
+        }
+    }
+
+    public Drawable getDrawable(Context context, String pkg, String drawableName) {
+        try {
+            PackageManager pm = context.getPackageManager();
+            Resources res = pm.getResourcesForApplication(pkg);
+            int resId = res.getIdentifier(drawableName, "drawable", pkg);
+            return res.getDrawable(resId);
+        }
+        catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public String getLabel(Context context, String pkg) {
+        PackageManager pm = context.getPackageManager();
+        try {
+            return pm.getApplicationInfo(pkg, 0)
+                    .loadLabel(pm).toString();
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+        }
+        return pkg;
+    }
+
+    public void enableOverlays(int position) {
+        mThemeUtils.setOverlayEnabled(mCategory, mPkgs.get(position), "com.android.systemui");
+    }
+}