When the “Print Document” button is touched by the user, the printDocument() onClick event handler method will be called. All that now remains before testing can commence, therefore, is to add this method to the MainActivity.java file, taking particular care to ensure that it is placed outside of the MyPrintDocumentAdapter class:
package com.ebookfrenzy.customprint;
.
.
import android.print.PrintManager;
import android.view.View;
public class MainActivity extends AppCompatActivity {
public void printDocument(View view)
{
PrintManager printManager = (PrintManager) this
.getSystemService(Context.PRINT_SERVICE);
...