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@yigit @dazza5000 @danysantiago
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/*
* 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 com.android.example.github.util
import androidx.lifecycle.LiveData
/**
* A LiveData class that has `null` value.
*/
class AbsentLiveData<T : Any?> private constructor(): LiveData<T>() {
init {
// use post instead of set since this can be created on any thread
postValue(null)
}
companion object {
fun <T> create(): LiveData<T> {
return AbsentLiveData()
}
}
}
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