85.5 Implementing the onWrite() Callback Method

The onWrite() callback method is responsible for rendering the pages of the document and then notifying the Printing framework that the document is ready to be printed. When completed, the onWrite() method reads as follows:

package com.ebookfrenzy.customprint

 

import java.io.FileOutputStream

import java.io.IOException

.

.

override fun onWrite(pageRanges: Array<out PageRange>?,

                     destination: ParcelFileDescriptor,

                     cancellationSignal: android.os.CancellationSignal?,

                     callback: WriteResultCallback?) {

 

  &...