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我做了一個藍牙打印機應用程序（基於Android），用於打印一些使用datecs DPP-350打印機設備的文本。這個程序使用一個datecs外部庫，例如bluetoohconnector和RFComm包。它很好地工作，這裏的代碼：如何從phonegap javascript調用此android bluetooth打印程序？
package com.myapp.MobilePrinter1;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import com.djarum.MobilePrinter1.BluetoothConnector;
import com.datecs.api.card.FinancialCard;
import com.datecs.api.printer.Printer;
import com.datecs.api.printer.PrinterInformation;
import com.datecs.api.printer.ProtocolAdapter;
import com.datecs.api.printer.ProtocolAdapter.Channel;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnDismissListener;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MobilePrinter1Activity extends Activity {
public static final String CONNECTION_STRING = "connection_string";
private final Handler mHandler = new Handler();
private final Thread mConnectThread = new Thread() {
@Override
public void run() {
String connectionString = "bth://00:01:90:E6:40:52";
showProgress("Connecting");
if (connectionString.startsWith("bth://")) {
String address = connectionString.substring(6);
connectBth(address);
} else {
throw new IllegalArgumentException("Unsupported connection string");
}
dismissProgress();
}
void connectBth(String address) {
//setPrinterInfo(R.drawable.help, address);
try {
mBthConnector = BluetoothConnector.getConnector(MobilePrinter1Activity.this);
mBthConnector.connect(address);
mPrinter = getPrinter(
mBthConnector.getInputStream(),
mBthConnector.getOutputStream());
} catch (IOException e) {
//error(R.drawable.bluetooth, e.getMessage());
return;
}
mPrinterInfo = getPrinterInfo();
}
Printer getPrinter(InputStream in, OutputStream out) throws IOException {
ProtocolAdapter adapter = new ProtocolAdapter(in, out);
Printer printer = null;
if (adapter.isProtocolEnabled()) {
Channel channel = adapter.getChannel(ProtocolAdapter.CHANNEL_PRINTER);
InputStream newIn = channel.getInputStream();
OutputStream newOut = channel.getOutputStream();
printer = new Printer(newIn, newOut);
} else {
printer = new Printer(in, out);
}
return printer;
}
PrinterInformation getPrinterInfo() {
PrinterInformation pi = null;
try {
pi = mPrinter.getInformation();
//setPrinterInfo(R.drawable.printer, pi.getName());
} catch (IOException e) {
e.printStackTrace();
}
return pi;
}
};
private BluetoothConnector mBthConnector;
private Printer mPrinter;
private PrinterInformation mPrinterInfo;
private ProgressDialog mProgressDialog;
private BluetoothConnector mConnector;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
mConnector = BluetoothConnector.getConnector(this);
} catch (IOException e) {
Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT);
finish();
}
findViewById(R.id.button1).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
printText();
}
});
findViewById(R.id.button2).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
printBarcode();
}
});
findViewById(R.id.button3).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
printImage();
}
});
}
public void printText() {
new Thread() {
@Override
public void run() {
//showProgress(R.string.printing_text);
doPrintText2();
dismissProgress();
}
}.start();
}
public void printBarcode() {
new Thread() {
@Override
public void run() {
//showProgress(R.string.printing_text);
doPrintBarcode();
dismissProgress();
}
}.start();
}
public void printImage() {
new Thread() {
@Override
public void run() {
//showProgress(R.string.printing_text);
doPrintImage();
dismissProgress();
}
}.start();
}
@Override
protected void onStart() {
super.onStart();
mConnectThread.start();
}
@Override
protected void onStop() {
super.onStop();
if (mBthConnector != null) {
try {
mBthConnector.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
private void showProgress(final String text) {
mHandler.post(new Runnable() {
@Override
public void run() {
mProgressDialog = ProgressDialog.show(
MobilePrinter1Activity.this,
"Please wait",
text,
true);
}
});
}
private void showProgress(int resId) {
showProgress(getString(resId));
}
private void dismissProgress() {
mHandler.post(new Runnable() {
@Override
public void run() {
mProgressDialog.dismiss();
}
});
}
private void doPrintSelfTest() {
try {
mPrinter.printSelfTest();
} catch (IOException e) {
//error(R.drawable.selftest, getString(R.string.failed_print_self_test) + ". " +
//e.getMessage());
}
}
private void doPrintText2() {
EditText EditText1;
EditText1=(EditText)findViewById(R.id.editText1);
String temp;
try {
mPrinter.reset();
mPrinter.printTaggedText(EditText1.getText().toString());
//mPrinter.printTaggedText("Testing Testing!!");
mPrinter.feedPaper(110);
} catch (IOException e) {
//error(R.drawable.text, getString(R.string.failed_print_text) + ". " +
//e.getMessage());
}
}
private void doPrintBarcode() {
EditText EditText1;
EditText1=(EditText)findViewById(R.id.editText1);
try {
mPrinter.reset();
mPrinter.setBarcode(Printer.ALIGN_CENTER, false, 2, Printer.HRI_BOTH, 100);
mPrinter.printBarcode(Printer.BARCODE_CODE128, EditText1.getText().toString());
mPrinter.feedPaper(38);
mPrinter.feedPaper(110);
} catch (IOException e) {
//error(R.drawable.barcode, getString(R.string.failed_print_barcode) + ". " +
//e.getMessage());
}
}
private void doPrintImage() {
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.logo_djarum);
final int width = bitmap.getWidth();
final int height = bitmap.getHeight();
final int[] argb = new int[width * height];
bitmap.getPixels(argb, 0, width, 0, 0, width, height);
try {
mPrinter.reset();
mPrinter.printImage(argb, width, height, Printer.ALIGN_LEFT, true);
mPrinter.feedPaper(110);
} catch (IOException e) {
Toast.makeText(MobilePrinter1Activity.this, e.getMessage(), 1).show();
}
}
private void dialog(final int id, final String title, final String msg) {
mHandler.post(new Runnable() {
@Override
public void run() {
AlertDialog dlg = new AlertDialog.Builder(MobilePrinter1Activity.this)
.setTitle(title)
.setMessage(msg)
.create();
dlg.setIcon(id);
dlg.show();
}
});
}
private void error(final int resIconId, final String message) {
mHandler.post(new Runnable() {
@Override
public void run() {
AlertDialog dlg = new AlertDialog.Builder(MobilePrinter1Activity.this)
.setTitle("Error")
.setMessage(message)
.create();
dlg.setIcon(resIconId);
dlg.setOnDismissListener(new OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
MobilePrinter1Activity.this.finish();
}
});
dlg.show();
}
});
}
private void setPrinterInfo(final int resIconId, final String text) {
mHandler.post(new Runnable() {
@Override
public void run() {
//((ImageView)findViewById(R.id.icon)).setImageResource(resIconId);
//((TextView)findViewById(R.id.name)).setText(text);
}
});
}
}
現在的主要問題是如何從phonegap調用此程序？我試過使用droidGap，但它會給我錯誤，當我開始打印機的線程。有誰知道如何解決這個問題？非常感謝..
這是可能的在android中創建藍牙打印機API而不使用外部庫。 – Karthick 2013-04-05 07:27:14