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.android.managedprovisioning.provisioning; 18 19 import androidx.lifecycle.ViewModel; 20 import androidx.lifecycle.ViewModelProvider; 21 22 import com.android.managedprovisioning.provisioning.TransitionAnimationHelper.TransitionAnimationState; 23 24 /** 25 * An {@link ViewModel} which maintains data related to provisioning. 26 */ 27 public class ProvisioningViewModel extends ViewModel { 28 29 private TransitionAnimationState mTransitionAnimationState; 30 31 /** 32 * Saves the state of the transition animation. 33 * 34 * @see #restoreTransitionAnimationState() 35 */ saveTransitionAnimationState(TransitionAnimationState state)36 public void saveTransitionAnimationState(TransitionAnimationState state) { 37 mTransitionAnimationState = state; 38 } 39 40 /** 41 * Returns the state that was saved via {@link 42 * #saveTransitionAnimationState(TransitionAnimationState)}. 43 */ restoreTransitionAnimationState()44 public TransitionAnimationState restoreTransitionAnimationState() { 45 return mTransitionAnimationState; 46 } 47 48 static class ProvisioningViewModelFactory implements ViewModelProvider.Factory { 49 @Override create(Class<T> modelClass)50 public <T extends ViewModel> T create(Class<T> modelClass) { 51 if (!ProvisioningViewModel.class.isAssignableFrom(modelClass)) { 52 throw new IllegalArgumentException("Invalid class for creating a " 53 + "PreProvisioningViewModel: " + modelClass); 54 } 55 return (T) new ProvisioningViewModel(); 56 } 57 } 58 } 59