79 lines
1.9 KiB
Kotlin
79 lines
1.9 KiB
Kotlin
/*
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* Copyright (c) 2019 Hemanth Savarala.
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*
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* Licensed under the GNU General Public License v3
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*
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* This is free software: you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by
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* the Free Software Foundation either version 3 of the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*/
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package code.name.monkey.retromusic.misc
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import android.content.Context
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import androidx.loader.content.AsyncTaskLoader
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/**
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* [Issue
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* 14944](http://code.google.com/p/android/issues/detail?id=14944)
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*
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* @author Alexander Blom
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*/
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abstract class WrappedAsyncTaskLoader<D>
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/**
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* Constructor of `WrappedAsyncTaskLoader`
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*
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* @param context The [Context] to use.
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*/
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(context: Context) : AsyncTaskLoader<D>(context) {
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private var mData: D? = null
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/**
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* {@inheritDoc}
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*/
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override fun deliverResult(data: D?) {
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if (!isReset) {
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this.mData = data
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super.deliverResult(data)
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} else {
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// An asynchronous query came in while the loader is stopped
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}
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}
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/**
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* {@inheritDoc}
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*/
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override fun onStartLoading() {
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super.onStartLoading()
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if (this.mData != null) {
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deliverResult(this.mData)
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} else if (takeContentChanged() || this.mData == null) {
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forceLoad()
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}
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}
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/**
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* {@inheritDoc}
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*/
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override fun onStopLoading() {
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super.onStopLoading()
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// Attempt to cancel the current load task if possible
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cancelLoad()
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}
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/**
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* {@inheritDoc}
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*/
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override fun onReset() {
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super.onReset()
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// Ensure the loader is stopped
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onStopLoading()
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this.mData = null
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}
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}
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