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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<Void, Void, Void> task = new AsyncTask<Void, Void, Void>() {
@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<PrinterInfo> printers = new ArrayList<PrinterInfo>();
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<PrinterInfo> printers = new ArrayList<PrinterInfo>();
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;
}
}
}
}
|
