RotaryPlayground/src/com/android/car/rotaryplayground/SurfaceViewFragment.java

/*
 * Copyright (C) 2021 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.car.rotaryplayground;

import android.app.Activity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;

import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

/** Fragment to demo a {@link SurfaceView} behind some buttons. */
public class SurfaceViewFragment extends Fragment {

    private CustomSurfaceView mSurfaceView;

    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
            @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.surface_view_fragment, container, false);
        mSurfaceView = view.findViewById(R.id.surface_view);

        // Some buttons sit on top of the left part of the SurfaceView, so tailor its left bound
        // so that RotaryService can find the correct nudge target.
        mSurfaceView.setBoundsOffset(300, 0, 0, 0);

        makeItFullScreen();
        return view;
    }

    private void makeItFullScreen() {
        Activity activity = getActivity();
        activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);

        DisplayMetrics displayMetrics = new DisplayMetrics();
        activity.getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
        ViewGroup.LayoutParams layoutParams = mSurfaceView.getLayoutParams();
        layoutParams.width = displayMetrics.widthPixels;
        layoutParams.height = displayMetrics.heightPixels;
    }
}