46 lines
1.4 KiB
Kotlin
46 lines
1.4 KiB
Kotlin
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package org.mariotaku.twidere.util.sync
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import android.content.Context
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import android.content.SharedPreferences
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import java.io.Closeable
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import java.util.*
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/**
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* Created by mariotaku on 2017/1/2.
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*/
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abstract class FileBasedPreferencesValuesSyncHelper<DownloadSession : Closeable, UploadSession : Closeable>(
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context: Context,
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var preferences: SharedPreferences,
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val processor: Processor
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) : FileBasedKeyValueSyncHelper<DownloadSession, UploadSession>(context) {
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override final val snapshotFileName: String = processor.snapshotFileName
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override final val whatData: String = processor.whatData
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override final fun MutableMap<String, String>.saveToLocal() {
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val editor = preferences.edit()
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editor.clear()
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for ((k, v) in this) {
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processor.saveValue(editor, k, v)
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}
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editor.apply()
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}
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override final fun loadFromLocal(): MutableMap<String, String> {
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val result = HashMap<String, String>()
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for ((k, v) in preferences.all) {
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processor.loadValue(result, k, v)
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}
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return result
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}
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interface Processor {
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val snapshotFileName: String
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val whatData: String
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fun saveValue(editor: SharedPreferences.Editor, key: String, value: String)
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fun loadValue(map: MutableMap<String, String>, key: String, value: Any?)
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}
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}
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