package foo.bar.printservice; import android.content.Intent; import android.net.Uri; import android.os.AsyncTask; import android.os.Handler; import android.os.Looper; import android.os.Message; import android.os.SystemClock; import android.print.PrintAttributes; import android.print.PrintAttributes.Margins; import android.print.PrintAttributes.MediaSize; import android.print.PrintAttributes.Resolution; import android.print.PrintAttributes.Tray; import android.print.PrintJobInfo; import android.print.PrinterId; import android.print.PrinterInfo; import android.printservice.PrintJob; import android.printservice.PrintService; import android.util.Log; import android.widget.Toast; import libcore.io.IoUtils; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.ArrayList; import java.util.List; public class MyPrintService extends PrintService { private static final String LOG_TAG = MyPrintService.class.getSimpleName(); private Handler mHandler; @Override protected void onConnected() { mHandler = new MyHandler(getMainLooper()); Log.i(LOG_TAG, "#onConnected()"); } @Override protected void onDisconnected() { cancellAddingFakePrinters(); Log.i(LOG_TAG, "#onDisconnected()"); } @Override protected void onStartPrinterDiscovery() { Log.i(LOG_TAG, "#onStartDiscoverPrinters()"); Message message1 = mHandler.obtainMessage(MyHandler.MESSAGE_ADD_FIRST_FAKE_PRINTER); mHandler.sendMessageDelayed(message1, 0); Message message2 = mHandler.obtainMessage(MyHandler.MESSAGE_ADD_SECOND_FAKE_PRINTER); mHandler.sendMessageDelayed(message2, 10000); } @Override protected void onStopPrinterDiscovery() { cancellAddingFakePrinters(); Log.i(LOG_TAG, "#onStopDiscoverPrinters()"); } @Override public void onPrintJobQueued(final PrintJob printJob) { Log.i(LOG_TAG, "#onPrintJobQueued()"); PrintJobInfo info = printJob.getInfo(); final File file = new File(getFilesDir(), info.getLabel() + ".pdf"); if (file.exists()) { file.delete(); } AsyncTask task = new AsyncTask() { @Override protected Void doInBackground(Void... params) { InputStream in = new BufferedInputStream( new FileInputStream(printJob.getDocument().getData())); OutputStream out = null; try { out = new BufferedOutputStream(new FileOutputStream(file)); final byte[] buffer = new byte[8192]; while (true) { final int readByteCount = in.read(buffer); if (readByteCount < 0) { break; } out.write(buffer, 0, readByteCount); } } catch (IOException ioe) { /* ignore */ } finally { IoUtils.closeQuietly(in); IoUtils.closeQuietly(out); } return null; } @Override protected void onPostExecute(Void result) { file.setExecutable(true, false); file.setWritable(true, false); file.setReadable(true, false); Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(file), "application/pdf"); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent, null); if (printJob.isQueued()) { printJob.start(); } PrintJobInfo info = printJob.getInfo(); Toast.makeText(MyPrintService.this, "[STARTED] Printer: " + info.getPrinterId().getLocalId(), Toast.LENGTH_SHORT).show(); SystemClock.sleep(5000); Toast.makeText(MyPrintService.this, "[COMPLETED] Printer: " + info.getPrinterId().getLocalId(), Toast.LENGTH_SHORT).show(); if (printJob.isStarted()) { printJob.complete(); } } }; task.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR, (Void[]) null); } private void addFirstFakePrinter() { PrinterId printerId = generatePrinterId("1"); PrinterInfo printer = new PrinterInfo.Builder(printerId, "Printer 1") .setStatus(PrinterInfo.STATUS_READY) .setMinMargins(new Margins(0, 0, 0, 0), new Margins(0, 0, 0, 0)) .addMediaSize(MediaSize.createMediaSize(getPackageManager(), MediaSize.ISO_A2), true) .addMediaSize(MediaSize.createMediaSize(getPackageManager(), MediaSize.ISO_A3), false) .addMediaSize(MediaSize.createMediaSize(getPackageManager(), MediaSize.ISO_A4), false) .addMediaSize(MediaSize.createMediaSize(getPackageManager(), MediaSize.NA_LETTER), false) .addResolution(new Resolution("R1", getString( R.string.resolution_600x600), 600, 600), true) .addInputTray(new Tray("FirstInputTray", getString( R.string.input_tray_first)), false) .addOutputTray(new Tray("FirstOutputTray", getString( R.string.output_tray_first)), false) .setDuplexModes(PrintAttributes.DUPLEX_MODE_NONE | PrintAttributes.DUPLEX_MODE_LONG_EDGE | PrintAttributes.DUPLEX_MODE_SHORT_EDGE, PrintAttributes.DUPLEX_MODE_NONE) .setColorModes(PrintAttributes.COLOR_MODE_COLOR | PrintAttributes.COLOR_MODE_MONOCHROME, PrintAttributes.COLOR_MODE_COLOR) .setFittingModes(PrintAttributes.FITTING_MODE_NONE | PrintAttributes.FITTING_MODE_FIT_TO_PAGE, PrintAttributes.FITTING_MODE_NONE) .setOrientations(PrintAttributes.ORIENTATION_PORTRAIT | PrintAttributes.ORIENTATION_LANDSCAPE, PrintAttributes.ORIENTATION_PORTRAIT) .create(); List printers = new ArrayList(); printers.add(printer); addDiscoveredPrinters(printers); } private void addSecondFakePrinter() { PrinterId printerId = generatePrinterId("2"); PrinterInfo printer = new PrinterInfo.Builder(printerId, "Printer 2") .setStatus(PrinterInfo.STATUS_READY) .setMinMargins(new Margins(0, 0, 0, 0), new Margins(0, 0, 0, 0)) .addMediaSize(MediaSize.createMediaSize(getPackageManager(), MediaSize.ISO_A4), true) .addMediaSize(MediaSize.createMediaSize(getPackageManager(), MediaSize.ISO_A5), false) .addResolution(new Resolution("R1", getString( R.string.resolution_200x200), 200, 200), true) .addResolution(new Resolution("R2", getString( R.string.resolution_300x300), 300, 300), false) .addInputTray(new Tray("FirstInputTray", getString( R.string.input_tray_first)), false) .addInputTray(new Tray("SecondInputTray", getString( R.string.input_tray_second)), true) .addOutputTray(new Tray("FirstOutputTray", getString( R.string.output_tray_first)), false) .addOutputTray(new Tray("SecondOutputTray", getString( R.string.output_tray_second)), true) .setDuplexModes(PrintAttributes.DUPLEX_MODE_NONE | PrintAttributes.DUPLEX_MODE_LONG_EDGE | PrintAttributes.DUPLEX_MODE_SHORT_EDGE, PrintAttributes.DUPLEX_MODE_SHORT_EDGE) .setColorModes(PrintAttributes.COLOR_MODE_COLOR | PrintAttributes.COLOR_MODE_MONOCHROME, PrintAttributes.COLOR_MODE_MONOCHROME) .setFittingModes(PrintAttributes.FITTING_MODE_FIT_TO_PAGE | PrintAttributes.FITTING_MODE_NONE, PrintAttributes.FITTING_MODE_FIT_TO_PAGE) .setOrientations(PrintAttributes.ORIENTATION_PORTRAIT | PrintAttributes.ORIENTATION_LANDSCAPE, PrintAttributes.ORIENTATION_LANDSCAPE) .create(); List printers = new ArrayList(); printers.add(printer); addDiscoveredPrinters(printers); } private void cancellAddingFakePrinters() { mHandler.removeMessages(MyHandler.MESSAGE_ADD_FIRST_FAKE_PRINTER); mHandler.removeMessages(MyHandler.MESSAGE_ADD_FIRST_FAKE_PRINTER); } private final class MyHandler extends Handler { public static final int MESSAGE_ADD_FIRST_FAKE_PRINTER = 1; public static final int MESSAGE_ADD_SECOND_FAKE_PRINTER = 2; public MyHandler(Looper looper) { super(looper, null, true); } @Override public void handleMessage(Message message) { switch (message.what) { case MESSAGE_ADD_FIRST_FAKE_PRINTER: { addFirstFakePrinter(); } break; case MESSAGE_ADD_SECOND_FAKE_PRINTER: { addSecondFakePrinter(); } break; } } } }