43 lines
1.5 KiB
Kotlin
43 lines
1.5 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.service
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import android.database.ContentObserver
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import android.os.Handler
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class MediaStoreObserver(
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private val musicService: MusicService,
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private val mHandler: Handler
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) : ContentObserver(mHandler), Runnable {
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override fun onChange(selfChange: Boolean) {
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// if a change is detected, remove any scheduled callback
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// then post a new one. This is intended to prevent closely
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// spaced events from generating multiple refresh calls
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mHandler.removeCallbacks(this)
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mHandler.postDelayed(this, REFRESH_DELAY)
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}
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override fun run() {
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// actually call refresh when the delayed callback fires
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// do not send a sticky broadcast here
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musicService.handleAndSendChangeInternal(MusicService.MEDIA_STORE_CHANGED)
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}
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companion object {
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// milliseconds to delay before calling refresh to aggregate events
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private const val REFRESH_DELAY: Long = 500
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}
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} |