package pdfviewer.pdfviewer

import android.annotation.SuppressLint
import android.app.Activity
import android.os.AsyncTask
import android.os.Bundle
import com.github.barteksc.pdfviewer.PDFView
import java.io.BufferedInputStream
import java.io.IOException
import java.io.InputStream
import java.net.HttpURLConnection
import java.net.MalformedURLException
import java.net.URL

class PdfRender : Activity() {

lateinit var pdfView: PDFView

override fun onCreate( savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.pdf_render)
}

@SuppressLint("StaticFieldLeak")
inner class DownloadPdf : AsyncTask<String, Void, InputStream>() {

    override fun doInBackground(vararg strings: String): InputStream? {
        var inputStream: InputStream? = null
        try {
            val uri = URL(strings[0])
            val urlConnection = uri.openConnection() as HttpURLConnection
            if (urlConnection.responseCode == 200) {
                inputStream = BufferedInputStream(urlConnection.inputStream)
            }
        } catch (e: MalformedURLException) {
            e.printStackTrace()
        } catch (e: IOException) {
            e.printStackTrace()
        }

        return inputStream
    }

    override fun onPostExecute(inputStream: InputStream) {
        pdfView.fromStream(inputStream).load()
    }
     }
    }