bindingappBarMainfabsetOnClickListener view - Snackbarmakeview Replace with your own action SnackbarLENGTH_LONG setActionAction nullshow 改成下载 https1270011jar文件到 内部存储画

binding.appBarMain.fab.setOnClickListener { view -> val url = "https://127.0.0.1/1.jar" val request = DownloadManager.Request(Uri.parse(url)) request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "画世界/1.jar") val downloadManager = getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager downloadManager.enqueue(request) }