Android Compose 通过 OkHttp v4 下载并保存文件

okhttp：https://square.github.io/okhttp/

fun saveImage(url: String, file: File) {
    val client = OkHttpClient()
    val request= Request.Builder().url(url).build()
    client.newCall(request).execute().use { response ->
        if (!response.isSuccessful) throw IOException("Unexpected code $response")
        for ((name, value) in response.headers) {
            // Timber.d("$name: $value")
        }
        val source = response.body!!.source()
        val sink = file.sink().buffer()
        source.use { input ->
            sink.use { output ->
                output.writeAll(input)
            }
        }
    }
}
coroutineScope.launch(Dispatchers.IO) {
    val file = File.createTempFile(
        "${context.getString(R.string.app_name)}_",
        ".png",
        Environment.getExternalStoragePublicDirectory(
            Environment.DIRECTORY_DOWNLOADS
        )
    )
    saveImage(blobUrl, file)
    withContext(Dispatchers.Main) {
        // showToast("File saved")
    }
}