forked from GitHub-Mirror/riotX-android
51 lines
1.7 KiB
Kotlin
51 lines
1.7 KiB
Kotlin
/*
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* Copyright 2019 New Vector Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package im.vector.riotx.core.di
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.ViewModelProvider
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import javax.inject.Inject
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import javax.inject.Provider
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/**
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* ViewModelFactory which uses Dagger to create the instances.
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*/
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class VectorViewModelFactory @Inject constructor(
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private val creators: @JvmSuppressWildcards Map<Class<out ViewModel>, Provider<ViewModel>>
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) : ViewModelProvider.Factory {
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override fun <T : ViewModel> create(modelClass: Class<T>): T {
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var creator: Provider<out ViewModel>? = creators[modelClass]
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if (creator == null) {
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for ((key, value) in creators) {
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if (modelClass.isAssignableFrom(key)) {
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creator = value
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break
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}
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}
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}
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if (creator == null) {
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throw IllegalArgumentException("Unknown model class: $modelClass")
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}
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try {
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@Suppress("UNCHECKED_CAST")
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return creator.get() as T
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} catch (e: Exception) {
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throw RuntimeException(e)
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}
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}
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}
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