Java tutorial
package com.dynamixsoftware.printingsample; import android.content.Context; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Matrix; import android.graphics.Paint; import android.graphics.Rect; import android.graphics.RectF; import android.os.Bundle; import android.os.Handler; import android.os.Looper; import android.os.RemoteException; import android.support.annotation.NonNull; import android.support.v4.app.Fragment; import android.support.v7.app.AlertDialog; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Toast; import com.dynamixsoftware.printingsdk.DriverHandleEntry; import com.dynamixsoftware.printingsdk.DriversSearchEntry; import com.dynamixsoftware.printingsdk.IDiscoverCloudListener; import com.dynamixsoftware.printingsdk.IDiscoverListener; import com.dynamixsoftware.printingsdk.IDiscoverSmb; import com.dynamixsoftware.printingsdk.IDiscoverSmbListener; import com.dynamixsoftware.printingsdk.IFindDriversListener; import com.dynamixsoftware.printingsdk.IGetDriversListener; import com.dynamixsoftware.printingsdk.IPage; import com.dynamixsoftware.printingsdk.IPrintListener; import com.dynamixsoftware.printingsdk.IServiceCallback; import com.dynamixsoftware.printingsdk.ISetLicenseCallback; import com.dynamixsoftware.printingsdk.ISetupPrinterListener; import com.dynamixsoftware.printingsdk.Printer; import com.dynamixsoftware.printingsdk.PrinterOption; import com.dynamixsoftware.printingsdk.PrinterOptionValue; import com.dynamixsoftware.printingsdk.PrintingSdk; import com.dynamixsoftware.printingsdk.Result; import com.dynamixsoftware.printingsdk.ResultType; import com.dynamixsoftware.printingsdk.SmbFile; import com.dynamixsoftware.printingsdk.TransportType; import java.io.FileInputStream; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.Random; public class PrintServiceFragment extends Fragment implements View.OnClickListener { private PrintingSdk printingSdk; private final List<Printer> discoveredPrinters = new ArrayList<>(); private final List<DriversSearchEntry> driversSearchEntries = new ArrayList<>(); private final List<DriverHandleEntry> driverHandleEntries = new ArrayList<>(); private IDiscoverSmb discoverSmb; private Handler mainHandler = new Handler(Looper.getMainLooper()); @Override public void onAttach(final Context context) { super.onAttach(context); printingSdk = new PrintingSdk(context); printingSdk.startService(new IServiceCallback() { @Override public void onServiceConnected() { Toast.makeText(context.getApplicationContext(), "Service connected", Toast.LENGTH_SHORT).show(); } @Override public void onServiceDisconnected() { Toast.makeText(context.getApplicationContext(), "Service disconnected", Toast.LENGTH_SHORT).show(); } }); } @Override public void onDetach() { super.onDetach(); printingSdk.stopService(); } @Override public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View root = inflater.inflate(R.layout.fragment_print_service, container, false); root.findViewById(R.id.set_license).setOnClickListener(this); root.findViewById(R.id.init_current_and_recent_printers).setOnClickListener(this); root.findViewById(R.id.get_current_printer).setOnClickListener(this); root.findViewById(R.id.get_recent_printers).setOnClickListener(this); root.findViewById(R.id.discover_wifi).setOnClickListener(this); root.findViewById(R.id.discover_bluetooth).setOnClickListener(this); root.findViewById(R.id.discover_google_cloud).setOnClickListener(this); root.findViewById(R.id.discover_smb).setOnClickListener(this); root.findViewById(R.id.discover_usb).setOnClickListener(this); root.findViewById(R.id.find_driver).setOnClickListener(this); root.findViewById(R.id.get_drivers).setOnClickListener(this); root.findViewById(R.id.setup_recent_printer).setOnClickListener(this); root.findViewById(R.id.setup_discovered_printer).setOnClickListener(this); root.findViewById(R.id.change_options).setOnClickListener(this); root.findViewById(R.id.print_image).setOnClickListener(this); return root; } @Override public void onClick(View v) { final Context appContext = requireContext().getApplicationContext(); switch (v.getId()) { case R.id.set_license: printingSdk.setLicense("YOUR_LICENSE_HERE", new ISetLicenseCallback.Stub() { @Override public void start() { Toast.makeText(appContext, "set license start", Toast.LENGTH_SHORT).show(); } @Override public void serverCheck() { Toast.makeText(appContext, "set license check server", Toast.LENGTH_SHORT).show(); } @Override public void finish(Result result) { Toast.makeText(appContext, "set license finish " + (result == Result.OK ? "ok" : "error"), Toast.LENGTH_SHORT).show(); } }); break; case R.id.init_current_and_recent_printers: try { printingSdk.initRecentPrinters(new ISetupPrinterListener.Stub() { @Override public void start() { toastInMainThread(appContext, "ISetupPrinterListener start"); } @Override public void libraryPackInstallationProcess(int arg0) { toastInMainThread(appContext, "ISetupPrinterListener libraryPackInstallationProcess " + arg0 + " %"); } @Override public void finish(Result arg0) { toastInMainThread(appContext, "ISetupPrinterListener finish " + arg0.name()); if (arg0.getType().equals(ResultType.ERROR_LIBRARY_PACK_NOT_INSTALLED)) { // printingSdk.setup should be called with forceInstall = true to download required drivers } } }); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.get_current_printer: try { Printer currentPrinter = printingSdk.getCurrentPrinter(); showDialog(getString(R.string.success), "Current printer:\n" + (currentPrinter != null ? currentPrinter.getName() : "null")); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.get_recent_printers: try { List<Printer> recentPrinters = printingSdk.getRecentPrintersList(); String message = ""; for (Printer printer : recentPrinters) message += printer.getName() + "\n"; if (message.length() == 0) message = "No recent printers"; showDialog(getString(R.string.success), message); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.discover_wifi: try { printingSdk.startDiscoverWiFi(new IDiscoverListener.Stub() { @Override public void start() { toastInMainThread(appContext, "IDiscoverListener start"); } @Override public void printerFound(List<Printer> arg0) { toastInMainThread(appContext, "IDiscoverListener printerFound"); discoveredPrinters.clear(); discoveredPrinters.addAll(arg0); } @Override public void finish(Result arg0) { toastInMainThread(appContext, "IDiscoverListener finish " + arg0.name()); } }); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.discover_bluetooth: try { printingSdk.startDiscoverBluetooth(new IDiscoverListener.Stub() { @Override public void start() { toastInMainThread(appContext, "IDiscoverListener start"); } @Override public void printerFound(List<Printer> arg0) { toastInMainThread(appContext, "IDiscoverListener printerFound"); discoveredPrinters.clear(); discoveredPrinters.addAll(arg0); } @Override public void finish(Result arg0) { toastInMainThread(appContext, "IDiscoverListener finish " + arg0.name()); } }); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.discover_google_cloud: try { printingSdk.startDiscoverCloud("YOUR_GOOGLE_ACCOUNT_NAME", new IDiscoverCloudListener.Stub() { @Override public void start() { toastInMainThread(appContext, "IDiscoverCloudListener start"); } @Override public void showAuthorization(Intent arg0) { // Launch Intent arg0 to show authorization activity } @Override public void printerFound(List<Printer> arg0) { toastInMainThread(appContext, "IDiscoverCloudListener printerFound"); discoveredPrinters.clear(); discoveredPrinters.addAll(arg0); } @Override public void finish(Result arg0) { toastInMainThread(appContext, "IDiscoverCloudListener finish " + arg0.name()); } }); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.discover_smb: try { discoverSmb = printingSdk.startDiscoverSmb(new IDiscoverSmbListener.Stub() { @Override public void start() { toastInMainThread(appContext, "IDiscoverSmbListener start"); } @Override public void smbFilesFound(List<SmbFile> arg0) { // Show list of SMB files. This listener is used for navigation. // You should call discoverSmbControl.move(arg0) to change location. } @Override public void showAuthorization() { // You have to ask user for authorization credentials and call discoverSmbControl.login(arg0, arg1); } @Override public void printerFound(List<Printer> arg0) { toastInMainThread(appContext, "IDiscoverSmbListener printerFound"); discoveredPrinters.clear(); discoveredPrinters.addAll(arg0); } @Override public void finish(Result arg0) { toastInMainThread(appContext, "IDiscoverSmbListener finish " + arg0.name()); } }); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.discover_usb: try { printingSdk.startDiscoverUSB(new IDiscoverListener.Stub() { @Override public void start() { toastInMainThread(appContext, "IDiscoverListener start"); } @Override public void printerFound(List<Printer> arg0) { toastInMainThread(appContext, "IDiscoverListener printerFound"); discoveredPrinters.clear(); discoveredPrinters.addAll(arg0); } @Override public void finish(Result arg0) { toastInMainThread(appContext, "IDiscoverListener finish " + arg0.name()); } }); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.find_driver: if (!discoveredPrinters.isEmpty()) { Printer printer = discoveredPrinters.get(0); try { printingSdk.findDrivers(printer, new IFindDriversListener.Stub() { @Override public void start() { toastInMainThread(appContext, "IFindDriversListener start"); } @Override public void finish(List<DriversSearchEntry> arg0) { toastInMainThread(appContext, "IFindDriversListener finish; Found " + arg0.size() + " drivers entries;" + ((arg0.size() == 0) ? "" : "")); driversSearchEntries.clear(); driversSearchEntries.addAll(arg0); } }); } catch (RemoteException e) { e.printStackTrace(); } } else showDialog(getString(R.string.error), "Discover printers first"); break; case R.id.get_drivers: if (!discoveredPrinters.isEmpty()) { Printer printer = discoveredPrinters.get(0); TransportType transportType = printer.getTransportTypes().get(0); if (transportType != null) { try { printingSdk.getDriversList(printer, transportType, new IGetDriversListener.Stub() { @Override public void start() { toastInMainThread(appContext, "IGetDriversListener start"); } @Override public void finish(List<DriverHandleEntry> arg0) { toastInMainThread(appContext, "IGetDriversListener finish"); driverHandleEntries.clear(); driverHandleEntries.addAll(arg0); } }); } catch (RemoteException e) { e.printStackTrace(); } } } else showDialog(getString(R.string.error), "Discover printers first"); break; case R.id.setup_recent_printer: try { List<Printer> printerList = printingSdk.getRecentPrintersList(); if (!printerList.isEmpty()) printingSdk.setup(printerList.get(0), true, new ISetupPrinterListener.Stub() { @Override public void start() { toastInMainThread(appContext, "ISetupPrinterListener start"); } @Override public void libraryPackInstallationProcess(int arg0) { toastInMainThread(appContext, "ISetupPrinterListener libraryPackInstallationProcess " + arg0 + " %"); } @Override public void finish(Result arg0) { toastInMainThread(appContext, "ISetupPrinterListener finish " + arg0.name()); if (arg0.getType().equals(ResultType.ERROR_LIBRARY_PACK_NOT_INSTALLED)) { // printingSdk.setup should be called with forceInstall = true to download required drivers } } }); else showDialog(getString(R.string.error), "No recent printers"); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.setup_discovered_printer: if (!discoveredPrinters.isEmpty()) { if (!driversSearchEntries.isEmpty()) { Printer printer = discoveredPrinters.get(0); DriversSearchEntry driversSearchEntry = driversSearchEntries.get(0); try { printingSdk.setup(printer, driversSearchEntry.getDriverHandlesList().get(0), driversSearchEntry.getTransportType(), false, new ISetupPrinterListener.Stub() { @Override public void start() { toastInMainThread(appContext, "ISetupPrinterListener start"); } @Override public void libraryPackInstallationProcess(int arg0) { toastInMainThread(appContext, "ISetupPrinterListener libraryPackInstallationProcess " + arg0 + " %"); } @Override public void finish(Result arg0) { toastInMainThread(appContext, "ISetupPrinterListener finish " + arg0.name()); if (arg0.getType().equals(ResultType.ERROR_LIBRARY_PACK_NOT_INSTALLED)) { // printingSdk.setup should be called with forceInstall = true to download required drivers } } }); } catch (RemoteException e) { e.printStackTrace(); } } else showDialog(getString(R.string.error), "Find driver first"); } else showDialog(getString(R.string.error), "Discover printers first"); break; case R.id.change_options: try { Printer currentPrinter = printingSdk.getCurrentPrinter(); if (currentPrinter != null) { List<PrinterOption> options = currentPrinter.getOptions(); if (options.size() > 0) { Random random = new Random(); PrinterOption option = options.get(random.nextInt(options.size())); PrinterOptionValue currentValue = option.getOptionValue(); List<PrinterOptionValue> valuesList = option.getOptionValueList(); PrinterOptionValue newValue = valuesList.get(random.nextInt(valuesList.size())); printingSdk.setCurrentPrinterOptionValue(option, newValue); Toast.makeText(requireContext().getApplicationContext(), "option " + option.getName() + " changed from " + currentValue + " to " + newValue, Toast.LENGTH_LONG).show(); } } else showDialog(getString(R.string.error), "Setup printer first"); } catch (RemoteException e) { e.printStackTrace(); } break; case R.id.print_image: try { if (printingSdk.getCurrentPrinter() != null) { List<IPage> pages = new ArrayList<>(); pages.add(new IPage() { @Override public Bitmap getBitmapFragment(Rect fragment) { Printer printer = null; try { printer = printingSdk.getCurrentPrinter(); } catch (RemoteException e) { e.printStackTrace(); } if (printer != null) { Bitmap bitmap = Bitmap.createBitmap(fragment.width(), fragment.height(), Bitmap.Config.ARGB_8888); for (int i = 0; i < 3; i++) try { BitmapFactory.Options options = new BitmapFactory.Options(); options.inPreferredConfig = Bitmap.Config.ARGB_8888; options.inDither = false; if (i > 0) { options.inSampleSize = 1 << i; } Bitmap imageBMP = BitmapFactory.decodeStream(new FileInputStream( FilesUtils.getFilePath(requireContext(), FilesUtils.FILE_PNG)), null, options); Paint p = new Paint(); int imageWidth = 0; int imageHeight = 0; if (imageBMP != null) { imageWidth = imageBMP.getWidth(); imageHeight = imageBMP.getHeight(); } int xDpi = printer.getContext().getHResolution(); int yDpi = printer.getContext().getVResolution(); // in dots int paperWidth = printer.getContext().getPaperWidth() * xDpi / 72; int paperHeight = printer.getContext().getPaperHeight() * yDpi / 72; float aspectH = (float) imageHeight / (float) paperHeight; float aspectW = (float) imageWidth / (float) paperWidth; RectF dst = new RectF(0, 0, fragment.width() * aspectW, fragment.height() * aspectH); float sLeft = 0; float sTop = fragment.top * aspectH; float sRight = imageWidth; float sBottom = fragment.top * aspectH + fragment.bottom * aspectH; RectF source = new RectF(sLeft, sTop, sRight, sBottom); Canvas canvas = new Canvas(bitmap); canvas.drawColor(Color.WHITE); // move image to actual printing area dst.offsetTo(dst.left - fragment.left, dst.top - fragment.top); Matrix matrix = new Matrix(); matrix.setRectToRect(source, dst, Matrix.ScaleToFit.FILL); canvas.drawBitmap(imageBMP, matrix, p); break; } catch (IOException ex) { ex.printStackTrace(); break; } catch (OutOfMemoryError ex) { if (bitmap != null) { bitmap.recycle(); bitmap = null; } continue; } return bitmap; } else return null; } }); try { printingSdk.print(pages, 1, new IPrintListener.Stub() { @Override public void startingPrintJob() { toastInMainThread(appContext, "IPrintListener startingPrintJob"); } @Override public void start() { toastInMainThread(appContext, "IPrintListener start"); } @Override public void sendingPage(int arg0, int arg1) { toastInMainThread(appContext, "IPrintListener sendingPage " + arg0 + "; progress " + arg1 + "%"); } @Override public void preparePage(int arg0) { toastInMainThread(appContext, "IPrintListener preparePage " + arg0); } @Override public boolean needCancel() { toastInMainThread(appContext, "IPrintListener needCancel"); // Return false if cancel needed. return false; } @Override public void finishingPrintJob() { toastInMainThread(appContext, "IPrintListener finishingPrintJob"); } @Override public void finish(Result arg0, int arg1, int arg2) { toastInMainThread(appContext, "IPrintListener finish Result " + arg0 + "; Result type " + arg0.getType() + "; Total pages " + arg1 + "; Pages sent " + arg2); } }); } catch (RemoteException e) { e.printStackTrace(); } } else showDialog(getString(R.string.error), "You must setup printer before print"); } catch (RemoteException e) { e.printStackTrace(); } break; } } private void showDialog(String title, String message) { new AlertDialog.Builder(requireContext()).setTitle(title).setMessage(message) .setPositiveButton(R.string.ok, null).show(); } private void toastInMainThread(final Context appContext, final String message) { mainHandler.post(new Runnable() { @Override public void run() { Toast.makeText(appContext, message, Toast.LENGTH_SHORT).show(); } }); } }