1 /* 2 * Copyright (C) 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.car.view; 18 19 import android.annotation.NonNull; 20 import android.annotation.Nullable; 21 import android.annotation.SystemApi; 22 import android.view.Display; 23 24 /** 25 * Provide access to {@code android.view.Display} calls. 26 * @hide 27 */ 28 @SystemApi 29 public final class DisplayHelper { 30 31 /** The same value as {@code android.car.builtin.view.DisplayHelper.INVALID_PORT} */ 32 public static final int INVALID_PORT = -1; 33 DisplayHelper()34 private DisplayHelper() { 35 throw new UnsupportedOperationException(); 36 } 37 38 /** 39 * @return the uniqueId of the given display. 40 */ 41 @Nullable getUniqueId(@onNull Display display)42 public static String getUniqueId(@NonNull Display display) { 43 return android.car.builtin.view.DisplayHelper.getUniqueId(display); 44 } 45 46 /** 47 * @return the physical port of the given display. 48 */ getPhysicalPort(@onNull Display display)49 public static int getPhysicalPort(@NonNull Display display) { 50 return android.car.builtin.view.DisplayHelper.getPhysicalPort(display); 51 } 52 } 53