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ViewModelFactory.java
/* * Copyright (C) 2017 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 android.support.v17.leanback.supportleanbackshowcase.app.room.di.viewmodel; import android.arch.lifecycle.ViewModel; import android.arch.lifecycle.ViewModelProvider; import java.util.Map; import javax.inject.Inject; import javax.inject.Singleton; @Singleton public class ViewModelFactory implements ViewModelProvider.Factory{ private final Map
, ViewModel> creators; @Inject public ViewModelFactory(Map
, ViewModel> creators) { this.creators = creators; } @SuppressWarnings("unchecked") @Override public
T create(Class
modelClass) { return (T)creators.get(modelClass); } }