Initial set up for CustomizationPickerActivity

    package="com.android.wallpaper">

    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="28"/>

    <application

        android:extractNativeLibs="false"

        android:hardwareAccelerated="true"

        android:icon="@mipmap/product_logo_wallpapers_launcher_color_48"

        android:label="@string/app_name"

        android:theme="@style/WallpaperTheme"

        android:requiredForAllUsers="true"

        android:restoreAnyVersion="true"

        android:supportsRtl="true">

        <activity android:name="com.android.theme.picker.ThemePickerActivity"

            android:label="@string/app_name"

            android:theme="@style/WallpaperTheme"

            android:resizeableActivity="true">

            <intent-filter>

                <action android:name="android.intent.action.SET_WALLPAPER"/>

                <category android:name="android.intent.category.DEFAULT"/>

            </intent-filter>

        </activity>

    </application>

</manifest>

<!--

     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.

-->

<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">

    <!-- The name of this application, a theme picker. [CHAR LIMIT=50] -->

    <string name="app_name">Themes &amp; Styles</string>

</resources>

/*

 * 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.customization.picker;

import android.content.Intent;

import android.os.Bundle;

import android.util.Log;

import androidx.annotation.Nullable;

import com.android.wallpaper.model.WallpaperInfo;

import com.android.wallpaper.module.FormFactorChecker;

import com.android.wallpaper.module.Injector;

import com.android.wallpaper.module.InjectorProvider;

import com.android.wallpaper.module.UserEventLogger;

import com.android.wallpaper.picker.BaseActivity;

import com.android.wallpaper.picker.CategoryFragment;

import com.android.wallpaper.picker.CategoryFragment.CategoryFragmentHost;

import com.android.wallpaper.picker.MyPhotosLauncher.PermissionChangedListener;

import com.android.wallpaper.picker.TopLevelPickerActivity;

import com.android.wallpaper.picker.WallpaperPickerDelegate;

import com.android.wallpaper.picker.WallpapersUiContainer;

//TODO(santie): implement

public class CustomizationPickerActivity extends BaseActivity implements WallpapersUiContainer,

        CategoryFragmentHost {

    private static final String TAG = "CustomizationPickerActivity";

    private WallpaperPickerDelegate mDelegate;

    private UserEventLogger mUserEventLogger;

    @Override

    protected void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        Injector injector = InjectorProvider.getInjector();

        mDelegate = new WallpaperPickerDelegate(this, this, injector);

        mUserEventLogger = injector.getUserEventLogger(this);

        if (!supportsCustomization()) {

            Log.w(TAG, "Themes not supported, reverting to Wallpaper Picker");

            Intent intent = new Intent(this, TopLevelPickerActivity.class);

            startActivity(intent);

            finish();

        }

    }

    private boolean supportsCustomization() {

        // TODO (santie): check for actual themes support

        return mDelegate.getFormFactor() == FormFactorChecker.FORM_FACTOR_MOBILE;

    }

    @Override

    public void requestExternalStoragePermission(PermissionChangedListener listener) {

    }

    @Override

    public boolean isReadExternalStoragePermissionGranted() {

        return false;

    }

    @Override

    public void showViewOnlyPreview(WallpaperInfo wallpaperInfo) {

    }

    /**

     * Shows the picker activity for the given category.

     */

    @Override

    public void show(String collectionId) {

        mDelegate.show(collectionId);

    }

    @Override

    public void onWallpapersReady() {

    }

    @Nullable

    @Override

    public CategoryFragment getCategoryFragment() {

        return null;

    }

    @Override

    public void doneFetchingCategories() {

    }

}

package com.android.theme.picker;

import com.android.wallpaper.picker.BaseActivity;

//TODO(santie): implement

public class ThemePickerActivity extends BaseActivity {

}