77.3 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.java file, add the template for this new class so that it reads as follows:

package com.ebookfrenzy.customprint;

.

.

import android.os.CancellationSignal;

import android.os.ParcelFileDescriptor;

import android.print.PageRange;

import android.print.PrintAttributes;

import android.print.PrintDocumentAdapter;

import android.content.Context;

 

public class MainActivity extends AppCompatActivity {

 

    public class MyPrintDocumentAdapter extends PrintDocumentAdapter

    {

        Context context;

 

      ...