Rename
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package io.legato.kazusa.service
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import android.annotation.SuppressLint
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import android.app.DownloadManager
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import android.content.BroadcastReceiver
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import android.content.Context
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import android.content.Intent
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import android.content.IntentFilter
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import android.net.Uri
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import android.os.Environment
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import androidx.core.app.NotificationCompat
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import androidx.core.content.ContextCompat
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import androidx.lifecycle.lifecycleScope
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import io.legato.kazusa.R
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import io.legato.kazusa.base.BaseService
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import io.legato.kazusa.constant.AppConst
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import io.legato.kazusa.constant.AppLog
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import io.legato.kazusa.constant.IntentAction
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import io.legato.kazusa.constant.NotificationId
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import io.legato.kazusa.utils.IntentType
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import io.legato.kazusa.utils.openFileUri
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import io.legato.kazusa.utils.servicePendingIntent
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import io.legato.kazusa.utils.toastOnUi
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import kotlinx.coroutines.Job
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.isActive
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import kotlinx.coroutines.launch
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import splitties.init.appCtx
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import splitties.systemservices.downloadManager
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import splitties.systemservices.notificationManager
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/**
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* 下载文件
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*/
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class DownloadService : BaseService() {
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private val groupKey = "${appCtx.packageName}.download"
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private val downloads = hashMapOf<Long, DownloadInfo>()
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private val completeDownloads = hashSetOf<Long>()
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private var upStateJob: Job? = null
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private val downloadReceiver = object : BroadcastReceiver() {
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override fun onReceive(context: Context, intent: Intent) {
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queryState()
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}
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}
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@SuppressLint("UnspecifiedRegisterReceiverFlag")
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override fun onCreate() {
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super.onCreate()
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ContextCompat.registerReceiver(
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this,
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downloadReceiver,
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IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE),
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ContextCompat.RECEIVER_EXPORTED
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)
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}
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override fun onDestroy() {
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super.onDestroy()
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unregisterReceiver(downloadReceiver)
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}
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override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
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when (intent?.action) {
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IntentAction.start -> startDownload(
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intent.getStringExtra("url"),
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intent.getStringExtra("fileName")
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)
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IntentAction.play -> {
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val id = intent.getLongExtra("downloadId", 0)
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if (completeDownloads.contains(id)) {
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openDownload(id, downloads[id]?.fileName)
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} else {
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toastOnUi("未完成,下载的文件夹Download")
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}
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}
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IntentAction.stop -> {
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val downloadId = intent.getLongExtra("downloadId", 0)
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removeDownload(downloadId)
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}
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}
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return super.onStartCommand(intent, flags, startId)
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}
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/**
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* 开始下载
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*/
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@Synchronized
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private fun startDownload(url: String?, fileName: String?) {
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if (url == null || fileName == null) {
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if (downloads.isEmpty()) {
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stopSelf()
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}
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return
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}
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if (downloads.values.any { it.url == url }) {
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toastOnUi("已在下载列表")
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return
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}
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kotlin.runCatching {
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// 指定下载地址
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val request = DownloadManager.Request(Uri.parse(url))
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// 设置通知
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request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_HIDDEN)
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// 设置下载文件保存的路径和文件名
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request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName)
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// 添加一个下载任务
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val downloadId = downloadManager.enqueue(request)
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downloads[downloadId] =
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DownloadInfo(url, fileName, NotificationId.Download + downloads.size)
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queryState()
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if (upStateJob == null) {
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checkDownloadState()
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}
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}.onFailure {
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it.printStackTrace()
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val msg = when (it) {
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is SecurityException -> "下载出错,没有存储权限"
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else -> "下载出错,${it.localizedMessage}"
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}
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toastOnUi(msg)
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AppLog.put(msg, it)
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}
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}
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/**
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* 取消下载
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*/
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@Synchronized
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private fun removeDownload(downloadId: Long) {
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if (!completeDownloads.contains(downloadId)) {
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downloadManager.remove(downloadId)
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}
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downloads.remove(downloadId)
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completeDownloads.remove(downloadId)
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notificationManager.cancel(downloadId.toInt())
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}
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/**
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* 下载成功
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*/
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@Synchronized
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private fun successDownload(downloadId: Long) {
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if (!completeDownloads.contains(downloadId)) {
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completeDownloads.add(downloadId)
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val fileName = downloads[downloadId]?.fileName
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openDownload(downloadId, fileName)
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}
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}
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private fun checkDownloadState() {
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upStateJob?.cancel()
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upStateJob = lifecycleScope.launch {
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while (isActive) {
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queryState()
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delay(1000)
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}
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}
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}
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/**
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* 查询下载进度
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*/
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@Synchronized
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private fun queryState() {
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if (downloads.isEmpty()) {
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stopSelf()
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return
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}
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val ids = downloads.keys
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val query = DownloadManager.Query()
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query.setFilterById(*ids.toLongArray())
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downloadManager.query(query).use { cursor ->
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if (cursor.moveToFirst()) {
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val idIndex = cursor.getColumnIndex(DownloadManager.COLUMN_ID)
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val progressIndex =
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cursor.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR)
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val fileSizeIndex = cursor.getColumnIndex(DownloadManager.COLUMN_TOTAL_SIZE_BYTES)
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val statusIndex = cursor.getColumnIndex(DownloadManager.COLUMN_STATUS)
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do {
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val id = cursor.getLong(idIndex)
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val progress = cursor.getInt(progressIndex)
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val max = cursor.getInt(fileSizeIndex)
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val status = when (cursor.getInt(statusIndex)) {
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DownloadManager.STATUS_PAUSED -> getString(R.string.pause)
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DownloadManager.STATUS_PENDING -> getString(R.string.wait_download)
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DownloadManager.STATUS_RUNNING -> getString(R.string.downloading)
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DownloadManager.STATUS_SUCCESSFUL -> {
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successDownload(id)
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getString(R.string.download_success)
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}
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DownloadManager.STATUS_FAILED -> getString(R.string.download_error)
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else -> getString(R.string.unknown_state)
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}
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downloads[id]?.let { downloadInfo ->
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upDownloadNotification(
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id,
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downloadInfo.notificationId,
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"${downloadInfo.fileName} $status",
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max,
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progress,
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downloadInfo.startTime
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)
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}
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} while (cursor.moveToNext())
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}
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}
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}
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/**
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* 打开下载文件
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*/
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private fun openDownload(downloadId: Long, fileName: String?) {
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kotlin.runCatching {
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downloadManager.getUriForDownloadedFile(downloadId)?.let { uri ->
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val type = IntentType.from(fileName)
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openFileUri(uri, type)
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}
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}.onFailure {
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AppLog.put("打开下载文件${fileName}出错", it)
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}
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}
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override fun startForegroundNotification() {
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val notification = NotificationCompat.Builder(this, AppConst.channelIdDownload)
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.setSmallIcon(R.drawable.ic_download)
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.setSubText(getString(R.string.action_download))
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.setGroup(groupKey)
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.setGroupSummary(true)
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.setOngoing(true)
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.build()
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startForeground(NotificationId.DownloadService, notification)
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}
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/**
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* 更新通知
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*/
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private fun upDownloadNotification(
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downloadId: Long,
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notificationId: Int,
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content: String,
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max: Int,
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progress: Int,
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startTime: Long
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) {
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val notificationBuilder = NotificationCompat.Builder(this, AppConst.channelIdDownload)
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.setSmallIcon(R.drawable.ic_download)
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.setSubText(getString(R.string.action_download))
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.setContentTitle(content)
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.setOnlyAlertOnce(true)
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.setContentIntent(
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servicePendingIntent<DownloadService>(IntentAction.play, downloadId.toInt()) {
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putExtra("downloadId", downloadId)
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}
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)
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.setDeleteIntent(
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servicePendingIntent<DownloadService>(IntentAction.stop, downloadId.toInt()) {
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putExtra("downloadId", downloadId)
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}
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)
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.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
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.setGroup(groupKey)
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.setWhen(startTime)
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if (progress < max) {
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notificationBuilder.setProgress(max, progress, false)
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}
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notificationManager.notify(notificationId, notificationBuilder.build())
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}
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private data class DownloadInfo(
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val url: String,
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val fileName: String,
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val notificationId: Int,
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val startTime: Long = System.currentTimeMillis()
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)
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}
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