francescogatto

 override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        val dummy = dummyes[position]
        with(holder.itemView) {
            title.text = dummy.title
            downloadIcon.isVisible = !dummy.file.exists()
            documentTypeIcon.isVisible = dummy.file.exists()
            progressBarDocument.isVisible = dummy.isDownloading
            textProgress.isVisible = dummy.isDownloading
            setOnClickListener {
                listener(dummy)

francescogatto

 private fun downloadWithFlow(dummy: DummyData) {
        CoroutineScope(Dispatchers.IO).launch {
            ktor.downloadFile(dummy.file, dummy.url).collect {
                withContext(Dispatchers.Main) {
                    when (it) {
                        is DownloadResult.Success -> {
                            myAdapter.setDownloading(dummy, false)
                        }
                        is DownloadResult.Error -> {
                            myAdapter.setDownloading(dummy, false)

francescogatto

private fun downloadWithFlow(dummy: DummyData) {
        CoroutineScope(Dispatchers.IO).launch {
            ktor.downloadFile(dummy.file, dummy.url).collect {
                when (it) {
                    is DownloadResult.Success -> {

                    }
                    is DownloadResult.Error -> {

                    }

francescogatto

suspend fun HttpClient.downloadFile(file: File, url: String): Flow<DownloadResult> {
    return flow {
        val response = call {
            url(url)
            method = HttpMethod.Get
        }.response
        val data = ByteArray(response.contentLength()!!.toInt())
        var offset = 0
        do {
            val currentRead = response.content.readAvailable(data, offset, data.size)

francescogatto

sealed class DownloadResult {

    object Success : DownloadResult()

    data class Error(val message: String, val cause: Exception? = null) : DownloadResult()

    data class Progress(val progress: Int): DownloadResult()
}

francescogatto

suspend fun HttpClient.downloadFile(file: File, url: String, callback: suspend (boolean: Boolean) -> Unit) {
    val response = call {
        url(url)
        method = HttpMethod.Get
    }.response
    val data = ByteArray(response.contentLength()!!.toInt())
    var offset = 0
    do {
        val currentRead = response.content.readAvailable(data, offset, data.size)
        offset += currentRead

francescogatto

suspend fun HttpClient.downloadFile(file: File, url: String, callback: suspend (boolean: Boolean) -> Unit) {
    val call = call {
        url(url)
        method = HttpMethod.Get
    }
    if (!call.response.status.isSuccess()) {
        callback(false)
    }
    call.response.content.copyAndClose(file.writeChannel())
    return callback(true)

francescogatto

startKoin {
    androidContext(this@MyApplication)
    modules(module {
        single { initKtorClient() }
    })
}

francescogatto

fun initKtorClient() = HttpClient(Android) {
    install(Logging) {
        logger = Logger.ANDROID
        level = LogLevel.ALL
    }
}

francescogatto

packagingOptions {
    exclude 'META-INF/*.kotlin_module'
}
kotlinOptions {
    jvmTarget = "1.8"
}