SwiftDownloader 是基于OkHttp和kotlin协程实现的下载器，它能在后台进行下载任务并轻松地让您在下载文件时获取进度，它能随时停止、恢复、取消任务，还可以方便地查询下载的任务和已完成的任务的信息。
⭐ 下载文件
⭐ 监听下载
⭐ 断点续传
⭐ 随时控制下载
⭐ 查询下载任务 (支持返回LiveData)
⭐ 可通过通知栏显示下载情况
⭐ 下载多媒体文件加入多媒体库
⭐ 自动/手动清除缓存文件
⭐ 支持链式调用
- 把它添加到你的根目录build.gradle中，在repositories的最后:
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
- 添加依赖：
repositories {
google()
mavenCentral()
}
dependencies {
implementation 'io.github.hunimeizi:haolinSwiftDownloader:1.0.3'
}
1.申请读写权限，网络权限
2.初始化下载器，传入Application的context
kotlin：
SwiftDownloader.initWithServiceMode(application)java：
SwiftDownloader.INSTANCE.initWithServiceMode(getApplicationContext());3.下载文件
kotlin:
val url = "https://storage.jd.com/jdmobile/JDMALL-PC2.apk"
//获取应用外部照片储存路径
val filePath = PathSelector(applicationContext).getPicturesDirPath()
val fileName = "jd.apk"
//加入下载队列
SwiftDownloader.enqueue(url, filePath, fileName)java：
String url="https://storage.jd.com/jdmobile/JDMALL-PC2.apk";
//获取应用外部照片储存路径
String filePath = new PathSelector(getApplicationContext()).getPicturesDirPath();
String fileName = "jd.apk";
//加入下载队列
SwiftDownloader.INSTANCE.enqueue(url,filePath,fileName);4.下载控制
kotlin:
//停止全部
SwiftDownloader.stopAll()
//恢复下载
SwiftDownloader.resumeAndStart()
//取消当前
SwiftDownloader.cancel()
//取消全部
SwiftDownloader.cancelAll()5.设置监听
kotlin:
SwiftDownloader.setOnProgressChange { progress ->
//do something...
}.setOnStop { downloadBytes, totalBytes ->
//do something...
}.setOnFinished { filePath, fileName ->
//do something...
}.setOnError { exception ->
//do something...
}6.设置自定义通知栏
设置中确保showNotification为true
SwiftDownloader.option.showNotification = true调用setNotificationSender()
override 抽象类NotificationSender 的三个方法
kotlin:
val remoteViews = RemoteViews(packageName, R.layout.notify_download) // Android12 展开布局
val remoteViewsCustom = RemoteViews(packageName, R.layout.notify_download_custom) // Android12收起后通知的布局
SwiftDownloader.notificationSender = object : NotificationSender(applicationContext) {
//创建显示任务下载进度的Notification
override fun buildDownloadProgressNotification(
progress: Int,
fileName: String
): Notification {
remoteViews.setProgressBar(R.id.pb_progress, 100, progress, false)
remoteViews.setTextViewText(R.id.tv_progress, "已下载$progress%")
remoteViewsCustom.setTextViewText(R.id.tv_progress, "已下载$progress%")
return NotificationCompat.Builder(context, DOWNLOAD_CHANNEL_ID)
.setSmallIcon(R.mipmap.ic_launcher)
.setContent(remoteViews)
.setStyle(NotificationCompat.DecoratedCustomViewStyle())
.setCustomContentView(remoteViewsCustom)
.setCustomBigContentView(remoteViews)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.build()
}
//创建显示任务下载停止的Notification
override fun buildDownloadStopNotification(fileName: String): Notification {
remoteViewsCustom.setTextViewText(R.id.tv_progress, "下载停止")
return NotificationCompat.Builder(context, DOWNLOAD_CHANNEL_ID)
.setSmallIcon(R.mipmap.ic_launcher)
.setContent(remoteViews)
.setStyle(NotificationCompat.DecoratedCustomViewStyle())
.setCustomContentView(remoteViewsCustom)
.setCustomBigContentView(remoteViews)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.build()
}
//创建显示任务下载完成的Notification
override fun buildDownloadDoneNotification(
filePath: String,
fileName: String
): Notification {
remoteViews.setProgressBar(R.id.pb_progress, 100, 100, false)
remoteViews.setTextViewText(R.id.tv_progress, "下载完成")
remoteViewsCustom.setTextViewText(R.id.tv_progress, "下载完成")
return if (isApkFile(fileName)) {
val file = File("$filePath/$fileName")
val uri = Uri.fromFile(file)
val intent = Intent(Intent.ACTION_VIEW)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
val contentUri = FileProvider.getUriForFile(
this@MainActivity, BuildConfig.APPLICATION_ID + ".fileprovider", file
)
intent.setDataAndType(contentUri, "application/vnd.android.package-archive")
} else {
intent.setDataAndType(uri, "application/vnd.android.package-archive")
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
}
val pendingIntent = PendingIntent.getActivities(
this@MainActivity, 0,
arrayOf(intent), if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT else PendingIntent.FLAG_UPDATE_CURRENT
)
NotificationCompat.Builder(context, DOWNLOAD_CHANNEL_ID)
.setSmallIcon(R.mipmap.ic_launcher)
.setContent(remoteViews)
.setStyle(NotificationCompat.DecoratedCustomViewStyle())
.setCustomContentView(remoteViewsCustom)
.setCustomBigContentView(remoteViews)
.setContentIntent(pendingIntent)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.build()
} else {
NotificationCompat.Builder(context, DOWNLOAD_CHANNEL_ID)
.setSmallIcon(R.mipmap.ic_launcher)
.setContent(remoteViews)
.setStyle(NotificationCompat.DecoratedCustomViewStyle())
.setCustomContentView(remoteViewsCustom)
.setCustomBigContentView(remoteViews)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.build()
}
}
}(通过setNotificationSender()设置的通知栏)