85.3 Creating the Custom Print Adapter

Most of the work involved in printing a custom document from within an Android application involves the implementation of the custom print adapter. This example will require a print adapter with the onLayout() and onWrite() callback methods implemented. Within the MainActivity.kt file, add the template for this new class so that it reads as follows:

package com.ebookfrenzy.customprint

 

import androidx.appcompat.app.AppCompatActivity

import android.os.Bundle

import android.os.ParcelFileDescriptor

import android.print.PageRange

import android.print.PrintAttributes

import android.print.PrintDocumentAdapter

import android.os.CancellationSignal

import android.content.Context

 

class MainActivity : AppCompatActivity() {

 

    inner class MyPrintDocumentAdapter(private var context: Context)

             &...