Examples with PrinterInfo android.print.PrinterInfo used on opensource projects

Example 46 with PrinterInfo

use of android.print.PrinterInfo in project android_frameworks_base by crdroidandroid.

the class PrinterDiscoverySession method sendOutOfDiscoveryPeriodPrinterChanges.

private void sendOutOfDiscoveryPeriodPrinterChanges() {
    // Noting changed since the last discovery period - nothing to do.
    if (mLastSentPrinters == null || mLastSentPrinters.isEmpty()) {
        mLastSentPrinters = null;
        return;
    }
    // Determine the added printers.
    List<PrinterInfo> addedPrinters = null;
    for (PrinterInfo printer : mPrinters.values()) {
        PrinterInfo sentPrinter = mLastSentPrinters.get(printer.getId());
        if (sentPrinter == null || !sentPrinter.equals(printer)) {
            if (addedPrinters == null) {
                addedPrinters = new ArrayList<PrinterInfo>();
            }
            addedPrinters.add(printer);
        }
    }
    // Send the added printers, if such.
    if (addedPrinters != null) {
        try {
            mObserver.onPrintersAdded(new ParceledListSlice<PrinterInfo>(addedPrinters));
        } catch (RemoteException re) {
            Log.e(LOG_TAG, "Error sending added printers", re);
        }
    }
    // Determine the removed printers.
    List<PrinterId> removedPrinterIds = null;
    for (PrinterInfo sentPrinter : mLastSentPrinters.values()) {
        if (!mPrinters.containsKey(sentPrinter.getId())) {
            if (removedPrinterIds == null) {
                removedPrinterIds = new ArrayList<PrinterId>();
            }
            removedPrinterIds.add(sentPrinter.getId());
        }
    }
    // Send the removed printers, if such.
    if (removedPrinterIds != null) {
        try {
            mObserver.onPrintersRemoved(new ParceledListSlice<PrinterId>(removedPrinterIds));
        } catch (RemoteException re) {
            Log.e(LOG_TAG, "Error sending removed printers", re);
        }
    }
    mLastSentPrinters = null;
}