package cc.shinichi.library
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import android.app.Application
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import android.content.ContentProvider
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import android.content.ContentValues
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import android.database.Cursor
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import android.net.Uri
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import androidx.media3.common.util.UnstableApi
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import androidx.media3.database.StandaloneDatabaseProvider
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import androidx.media3.datasource.DefaultDataSource
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import androidx.media3.datasource.DefaultHttpDataSource
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import androidx.media3.datasource.cache.CacheDataSource
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import androidx.media3.datasource.cache.LeastRecentlyUsedCacheEvictor
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import androidx.media3.datasource.cache.SimpleCache
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import java.io.File
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/**
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* 文件名: InitProvider.java
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* 作者: kirito
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* 描述: 初始化
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* 创建时间: 2024/11/27
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*/
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@UnstableApi
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class InitProvider : ContentProvider() {
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override fun onCreate(): Boolean {
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// 获取 Application 实例
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val application = context?.applicationContext as? Application
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if (application != null) {
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// 在这里进行初始化操作
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initializeLibrary(application)
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}
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return true // 返回 true 表示成功初始化
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}
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private fun initializeLibrary(application: Application) {
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// downloadDirectory
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val downloadDirectory = File(application.cacheDir, "media_cache")
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// maxBytes 500MB
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val maxBytes = 500 * 1024 * 1024L
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// Note: This should be a singleton in your app.
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val databaseProvider = StandaloneDatabaseProvider(application)
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// An on-the-fly cache should evict media when reaching a maximum disk space limit.
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val cache = SimpleCache(
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downloadDirectory,
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LeastRecentlyUsedCacheEvictor(maxBytes),
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databaseProvider
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)
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val dataSourceFactory = DefaultDataSource.Factory(
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application,
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DefaultHttpDataSource.Factory()
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)
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// Configure the DataSource.Factory with the cache and factory for the desired HTTP stack.
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var cacheDataSourceFactory =
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CacheDataSource.Factory()
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.setCache(cache)
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.setUpstreamDataSourceFactory(dataSourceFactory)
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GlobalContext.init(application, cacheDataSourceFactory)
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}
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override fun query(
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uri: Uri, projection: Array<out String>?, selection: String?,
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selectionArgs: Array<out String>?, sortOrder: String?
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): Cursor? = null
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override fun insert(uri: Uri, values: ContentValues?): Uri? = null
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override fun delete(uri: Uri, selection: String?, selectionArgs: Array<out String>?): Int = 0
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override fun update(
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uri: Uri, values: ContentValues?, selection: String?, selectionArgs: Array<out String>?
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): Int = 0
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override fun getType(uri: Uri): String? = null
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}
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