1 /* 2 * Copyright (C) 2021 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 com.google.android.car.kitchensink.bluetooth; 18 19 import android.annotation.Nullable; 20 import android.app.Activity; 21 import android.content.pm.PackageManager; 22 23 import androidx.activity.result.contract.ActivityResultContracts; 24 import androidx.fragment.app.Fragment; 25 26 public final class BluetoothPermissionChecker { BluetoothPermissionChecker()27 private BluetoothPermissionChecker() { 28 } 29 isPermissionGranted(Activity mActivity, String permission)30 static boolean isPermissionGranted(Activity mActivity, String permission) { 31 return mActivity.checkSelfPermission(permission) 32 == PackageManager.PERMISSION_GRANTED; 33 } 34 requestPermission(String permission, Fragment fragment, @Nullable Runnable isGrantedRunnable, @Nullable Runnable isNotGrantedRunnable)35 static void requestPermission(String permission, Fragment fragment, 36 @Nullable Runnable isGrantedRunnable, @Nullable Runnable isNotGrantedRunnable) { 37 fragment.registerForActivityResult(new ActivityResultContracts.RequestPermission(), 38 isGranted -> { 39 if (isGranted) { 40 if (isGrantedRunnable != null) { 41 isGrantedRunnable.run(); 42 } 43 } else { 44 if (isNotGrantedRunnable != null) { 45 isNotGrantedRunnable.run(); 46 } 47 } 48 }).launch(permission); 49 } 50 requestMultiplePermissions(String[] permissions, Fragment fragment, @Nullable Runnable isGrantedRunnable, @Nullable Runnable isNotGrantedRunnable)51 static void requestMultiplePermissions(String[] permissions, Fragment fragment, 52 @Nullable Runnable isGrantedRunnable, @Nullable Runnable isNotGrantedRunnable) { 53 fragment.registerForActivityResult( 54 new ActivityResultContracts.RequestMultiplePermissions(), 55 isGrantedMap -> { 56 // I.e., true if *all* permissions in the map have been granted 57 if (!isGrantedMap.containsValue(false)) { 58 if (isGrantedRunnable != null) { 59 isGrantedRunnable.run(); 60 } 61 } else { 62 if (isNotGrantedRunnable != null) { 63 isNotGrantedRunnable.run(); 64 } 65 } 66 }).launch(permissions); 67 } 68 } 69