我想要它做的是，连接到打印机（自动或带针，无论如何） 然后按“下一个活动”并能够在下一个活动中打印我想要的蓝牙打印机。但是当下一个活动加载时，连接关闭，我无法使用打印机，除非我一起创建连接方法进入该活动，我需要一遍又一遍地配对设备。所以这是我的SDK。我真的希望有人可以帮助我，因为我会疯狂，我尝试使用getbondeddevices但我不认为我足够聪明......所以这里。也许有人可以看到打印机如何连接以及如何在整个活动中分享它？
甚至可能是关于如何配对设备然后在下一个活动中使用它的教程...任何帮助都会很棒
public class PrintTestAcitvity extends Activity {
// btOperation bo = new btOperation();
//// ¶ÔÆ뷽ʽ
/**
* printing text align left
*/
public static final int AT_LEFT = 0;
/**
* printing text align center
*/
public static final int AT_CENTER = 1;
/**
* printing text align right
*/
public static final int AT_RIGHT = 2;
private static final String GetBondedDevice = null;
// public String curentDateTimeString = DateFormat.getDateTimeInstance().format(new Date());
public static String curentDateTimeString() {
SimpleDateFormat sdfDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//dd/MM/yyyy
Date now = new Date();
String strDate = sdfDate.format(now);
return strDate;
}
private Button btConnect = null;
private Button btCancel = null;
private Button asciiSend = null;
private Button graphicSend = null;
private regoPrinter mobileprint = null;
private boolean bConnect = true;
private TextView textTitle = null;
// private EditText portName;
private int iObjectCode;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btConnect = (Button)findViewById(R.id.connect);
btCancel = (Button)findViewById(R.id.cancel);
asciiSend = (Button)findViewById(R.id.asc_send);
graphicSend = (Button)findViewById(R.id.gra_send);
textTitle = (TextView)findViewById(R.id.title);
// portName = (EditText)findViewById(R.id.portName);
iObjectCode = 0;
mobileprint = new regoPrinter();
asciiSend.setEnabled(false);
graphicSend.setEnabled(false);
btConnect.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String strName = "MPT-II"; // portName.getText().toString();
if(strName.length() == 0)
{
Toast.makeText(PrintTestAcitvity.this, "Error:port name empty", Toast.LENGTH_SHORT).show();
return;
}
if(bConnect)
{
try
{
mobileprint.CON_LnitPrintLib();
iObjectCode = mobileprint.CON_ConnectDevice(strName);
}
catch(printLibException e)
{
Toast.makeText(PrintTestAcitvity.this, e.GetMessage(),
Toast.LENGTH_LONG).show();
}
finally
{
if(iObjectCode != 0)
{
// connect succeed
textTitle.setText(strName + PrintTestAcitvity.this.getString(R.string.consucceed));
btConnect.setText(R.string.disconnect);
bConnect = false;
asciiSend.setEnabled(true);
graphicSend.setEnabled(true);
}
}
}
else
{
textTitle.setText(strName + PrintTestAcitvity.this.getString(R.string.disconnect));
asciiSend.setEnabled(false);
graphicSend.setEnabled(false);
try {
mobileprint.CON_CloseConnect(iObjectCode);
} catch (printLibException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
bConnect = true;
btConnect.setText(R.string.connect);
}
}
});
btCancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(!bConnect)
{
try {
mobileprint.CON_CloseConnect(iObjectCode);
} catch (printLibException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
mobileprint.CON_FreePrintLib();
finish();
return;
}
});
asciiSend.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
// mobileprint.CON_PageStart(iObjectCode, 576, 0) &&
if(mobileprint.ASCII_QueryPrinterStatus(iObjectCode))
{
//Çå³ý´òÓ¡»ú»º³å
mobileprint.ASCII_Reset(iObjectCode);
//´òÓ¡LogoͼƬ£¬ÏȽ«Í¼Æ¬ÏÂÔØÖÁ´òÓ¡»úÖÐÔÙÖ´Ðд˺¯Êý
//mobileprint.PrintFlashPic(1, 0);
//´òÓ¡title
mobileprint.ASCII_AlignType(iObjectCode, 1);
mobileprint.ASCII_FormatString(iObjectCode,false,false,true,false,false);
mobileprint.ASCII_SendString(iObjectCode, "Plate:" +" " + "ABCD123", "gb2312");
// mobileprint.ASCII_PrintCRLF(iObjectCode, 2);
mobileprint.ASCII_FeedLines(iObjectCode, 1);
mobileprint.ASCII_Reset(iObjectCode);
mobileprint.ASCII_PrintCRLF(iObjectCode, 2);
mobileprint.CON_PageEnd(iObjectCode);
}
else
{
Toast.makeText(PrintTestAcitvity.this, "Printer status error",
Toast.LENGTH_LONG).show();
}
} catch (printLibException e) {
// TODO Auto-generated catch block
Toast.makeText(PrintTestAcitvity.this, e.GetMessage(),
Toast.LENGTH_LONG).show();
}
}
});
graphicSend.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
if(mobileprint.CON_PageStart(iObjectCode, 576, 450) && mobileprint.ASCII_QueryPrinterStatus(iObjectCode))
{
//Çå³ý´òÓ¡»ú»º³å
mobileprint.ASCII_Reset(iObjectCode);
mobileprint.DRAW_Line(iObjectCode,0, 1, 575, 1,3);
mobileprint.DRAW_Line(iObjectCode,0, 1, 0, 450,3);
mobileprint.DRAW_Line(iObjectCode,575, 1, 575, 450,3);
mobileprint.DRAW_Line(iObjectCode,0, 450, 575, 450,3);
mobileprint.DRAW_Line(iObjectCode,465, 1, 465, 450,1);
mobileprint.DRAW_Rectangle(iObjectCode, 0, 0, 80, 50, 1, true);
/* mobileprint.DRAW_Text(iObjectCode, 30, 80, "ÉϺ£¿ì½Ý¿ìÔËÓÐÏÞ¹«Ë¾ ", 40);
mobileprint.DRAW_Text(iObjectCode,90, 185, "ÉϺ£ -> ±±¾©", 35);
mobileprint.DRAW_Text(iObjectCode,80, 245, "(ÉϺ£±±Ç๫·°ì)", 20);
mobileprint.DRAW_Text(iObjectCode,310, 245, "(»ðʮ·վ)", 20);
mobileprint.DRAW_Text(iObjectCode,20, 305, "20112-02100100-0101-2112-10", 30);
mobileprint.DRAW_Code128(iObjectCode, 60, 350, 1, 60, "754432112-2");
mobileprint.DRAW_CreateRotalBlock(iObjectCode,476, 0, 450,100, 2);//(0.0) Ϊ×óÉϽǵľØÐÎ
mobileprint.DRAW_Code128(iObjectCode, 40, 5, 1, 60, "754432112-2");
*/
mobileprint.CON_PageEnd(iObjectCode);
}
else
{
Toast.makeText(PrintTestAcitvity.this, "Printer status error",
Toast.LENGTH_LONG).show();
}
} catch (printLibException e) {
// TODO Auto-generated catch block
Toast.makeText(PrintTestAcitvity.this, e.GetMessage(),
Toast.LENGTH_LONG).show();
}
}
});
}
}