android藍牙打印機

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[置頂] 安卓手機連接藍牙打印機實現打印功能

分類： android 2013-09-22 14:22 958人閱讀評論(28) 收藏舉報

android 藍牙打印

最近在做一個安卓應用，其中有一個需求是要求用藍牙連接打印機實現打印功能。一開始沒有一點頭緒，網上找了很多資料也找不到有用的數據。所以自己就去研究，最終，功夫不負有心人，順利的完成了這個功能。下邊貼出我寫的代碼，共有需要的IT哥們參考學習。

完整源碼下載

我們先看看運行效果圖吧。。。

1.這是主界面的效果圖

貼上布局文件的代碼：bluetooth_layout.xml

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<span style="font-size:12px"><?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/openBluetooth_tb"
android:layout_width="130dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginRight="18dp"
android:layout_marginTop="5dp"
android:text="打開藍牙" />
<Button
android:id="@+id/searchDevices"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/openBluetooth_tb"
android:layout_marginTop="20dp"
android:text="搜索設備" />
<View
android:layout_width="match_parent"
android:layout_height="3dp"
android:layout_alignParentLeft="true"
android:layout_below="@+id/searchDevices"
android:background="@android:color/darker_gray" />
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_marginTop="125dp"
android:orientation="vertical" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="未配對設備" />
<ListView
android:id="@+id/unbondDevices"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="3dp"
android:layout_alignParentLeft="true"
android:layout_below="@+id/searchDevices"
android:layout_marginTop="160dp"
android:background="@android:color/darker_gray" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="190dp"
android:layout_marginTop="288dp"
android:orientation="vertical" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="已配對設備" />
<ListView
android:id="@+id/bondDevices"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/linearLayout1" >
</ListView>
</LinearLayout>
<Button
android:id="@+id/return_Bluetooth_btn"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_above="@+id/searchDevices"
android:layout_alignParentLeft="true"
android:text="返回" />
</RelativeLayout></span>

從上邊的布局文件中不難看出，其中有兩個ListView，OK，那下邊貼出對應的兩個item布局文件

--> 第一個item：unbonddevice_item.xml

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<span style="font-size:14px"><?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="@+id/device_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="未綁定設備"
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout></span>

-->第二個item：bonddevice_item.xml

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<span style="font-size:14px"><?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="@+id/device_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="已綁定設備"
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout></span>

2.還有另外一個布局文件，就是當點擊已綁定藍牙設備下邊的某個item時進入打印的界面，不多說，看圖！

代碼如下：printdata_layout.xml

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<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<EditText
android:id="@+id/print_data"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="46dp" >
</EditText>
<TextView
android:id="@+id/device_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="16dp"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/connect_state"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/device_name"
android:layout_alignBottom="@+id/device_name"
android:layout_marginLeft="42dp"
android:layout_toRightOf="@+id/device_name"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<Button
android:id="@+id/send"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/print_data"
android:layout_marginTop="21dp"
android:text="打印" />
<Button
android:id="@+id/command"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/send"
android:text="指令" />
</RelativeLayout>

至此，布局文件就搞定了，接下來就要編寫java代碼了。主要有一下這么幾個類，一個一個來哈

BluetoothActivity.java

這個類的主要作用是初始化主界面，看代碼

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public class BluetoothActivity extends Activity {
private Context context = null;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.context = this;
setTitle("藍牙打印");
setContentView(R.layout.bluetooth_layout);
this.initListener();
}
private void initListener() {
ListView unbondDevices = (ListView) this
.findViewById(R.id.unbondDevices);
ListView bondDevices = (ListView) this.findViewById(R.id.bondDevices);
Button switchBT = (Button) this.findViewById(R.id.openBluetooth_tb);
Button searchDevices = (Button) this.findViewById(R.id.searchDevices);
BluetoothAction bluetoothAction = new BluetoothAction(this.context,
unbondDevices, bondDevices, switchBT, searchDevices,
BluetoothActivity.this);
Button returnButton = (Button) this
.findViewById(R.id.return_Bluetooth_btn);
bluetoothAction.setSearchDevices(searchDevices);
bluetoothAction.initView();
switchBT.setOnClickListener(bluetoothAction);
searchDevices.setOnClickListener(bluetoothAction);
returnButton.setOnClickListener(bluetoothAction);
}
//屏蔽返回鍵的代碼:
public boolean onKeyDown(int keyCode,KeyEvent event)
{
switch(keyCode)
{
case KeyEvent.KEYCODE_BACK:return true;
}
return super.onKeyDown(keyCode, event);
}
}

BluetoothAction.java

這個類顧名思義，是處理bluetoothActivity中各種操作事件的action類，看代碼

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<span style="font-size:14px">public class BluetoothAction implements OnClickListener {
private Button switchBT = null;
private Button searchDevices = null;
private Activity activity = null;
private ListView unbondDevices = null;
private ListView bondDevices = null;
private Context context = null;
private BluetoothService bluetoothService = null;
public BluetoothAction(Context context, ListView unbondDevices,
ListView bondDevices, Button switchBT, Button searchDevices,
Activity activity) {
super();
this.context = context;
this.unbondDevices = unbondDevices;
this.bondDevices = bondDevices;
this.switchBT = switchBT;
this.searchDevices = searchDevices;
this.activity = activity;
this.bluetoothService = new BluetoothService(this.context,
this.unbondDevices, this.bondDevices, this.switchBT,
this.searchDevices);
}
public void setSwitchBT(Button switchBT) {
this.switchBT = switchBT;
}
public void setSearchDevices(Button searchDevices) {
this.searchDevices = searchDevices;
}
public void setUnbondDevices(ListView unbondDevices) {
this.unbondDevices = unbondDevices;
}
/**
* 初始化界面
*/
public void initView() {
if (this.bluetoothService.isOpen()) {
System.out.println("藍牙有開!");
switchBT.setText("關閉藍牙");
}
if (!this.bluetoothService.isOpen()) {
System.out.println("藍牙沒開!");
this.searchDevices.setEnabled(false);
}
}
private void searchDevices() {
bluetoothService.searchDevices();
}
/**
* 各種按鈕的監聽
*/
@Override
public void onClick(View v) {
if (v.getId() == R.id.searchDevices) {
this.searchDevices();
} else if (v.getId() == R.id.return_Bluetooth_btn) {
activity.finish();
} else if (v.getId() == R.id.openBluetooth_tb) {
if (!this.bluetoothService.isOpen()) {
// 藍牙關閉的情況
System.out.println("藍牙關閉的情況");
this.bluetoothService.openBluetooth(activity);
} else {
// 藍牙打開的情況
System.out.println("藍牙打開的情況");
this.bluetoothService.closeBluetooth();
}
}
}
}</span>

這個類會把各種請求動作分門別類，交給BluetoothService.java來處理，看代碼

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public class BluetoothService {
private Context context = null;
private BluetoothAdapter bluetoothAdapter = BluetoothAdapter
.getDefaultAdapter();
private ArrayList<BluetoothDevice> unbondDevices = null; // 用於存放未配對藍牙設備
private ArrayList<BluetoothDevice> bondDevices = null;// 用於存放已配對藍牙設備
private Button switchBT = null;
private Button searchDevices = null;
private ListView unbondDevicesListView = null;
private ListView bondDevicesListView = null;
/**
* 添加已綁定藍牙設備到ListView
*/
private void addBondDevicesToListView() {
ArrayList<HashMap<String, Object>> data = new ArrayList<HashMap<String, Object>>();
int count = this.bondDevices.size();
System.out.println("已綁定設備數量：" + count);
for (int i = 0; i < count; i++) {
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("deviceName", this.bondDevices.get(i).getName());
data.add(map);// 把item項的數據加到data中
}
String[] from = { "deviceName" };
int[] to = { R.id.device_name };
SimpleAdapter simpleAdapter = new SimpleAdapter(this.context, data,
R.layout.bonddevice_item, from, to);
// 把適配器裝載到listView中
this.bondDevicesListView.setAdapter(simpleAdapter);
this.bondDevicesListView
.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
BluetoothDevice device = bondDevices.get(arg2);
Intent intent = new Intent();
intent.setClassName(context,
"com.lifeng.jdxt.view.PrintDataActivity");
intent.putExtra("deviceAddress", device.getAddress());
context.startActivity(intent);
}
});
}
/**
* 添加未綁定藍牙設備到ListView
*/
private void addUnbondDevicesToListView() {
ArrayList<HashMap<String, Object>> data = new ArrayList<HashMap<String, Object>>();
int count = this.unbondDevices.size();
System.out.println("未綁定設備數量：" + count);
for (int i = 0; i < count; i++) {
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("deviceName", this.unbondDevices.get(i).getName());
data.add(map);// 把item項的數據加到data中
}
String[] from = { "deviceName" };
int[] to = { R.id.device_name };
SimpleAdapter simpleAdapter = new SimpleAdapter(this.context, data,
R.layout.unbonddevice_item, from, to);
// 把適配器裝載到listView中
this.unbondDevicesListView.setAdapter(simpleAdapter);
// 為每個item綁定監聽，用於設備間的配對
this.unbondDevicesListView
.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
try {
Method createBondMethod = BluetoothDevice.class
.getMethod("createBond");
createBondMethod
.invoke(unbondDevices.get(arg2));
// 將綁定好的設備添加的已綁定list集合
bondDevices.add(unbondDevices.get(arg2));
// 將綁定好的設備從未綁定list集合中移除
unbondDevices.remove(arg2);
addBondDevicesToListView();
addUnbondDevicesToListView();
} catch (Exception e) {
Toast.makeText(context, "配對失敗！", Toast.LENGTH_SHORT)
.show();
}
}
});
}
public BluetoothService(Context context, ListView unbondDevicesListView,
ListView bondDevicesListView, Button switchBT, Button searchDevices) {
this.context = context;
this.unbondDevicesListView = unbondDevicesListView;
this.bondDevicesListView = bondDevicesListView;
// this.bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
this.unbondDevices = new ArrayList<BluetoothDevice>();
this.bondDevices = new ArrayList<BluetoothDevice>();
this.switchBT = switchBT;
this.searchDevices = searchDevices;
this.initIntentFilter();
}
private void initIntentFilter() {
// 設置廣播信息過濾
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(BluetoothDevice.ACTION_FOUND);
intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
intentFilter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
// 注冊廣播接收器，接收並處理搜索結果
context.registerReceiver(receiver, intentFilter);
}
/**
* 打開藍牙
*/
public void openBluetooth(Activity activity) {
Intent enableBtIntent = new Intent(
BluetoothAdapter.ACTION_REQUEST_ENABLE);
activity.startActivityForResult(enableBtIntent, 1);
}
/**
* 關閉藍牙
*/
public void closeBluetooth() {
this.bluetoothAdapter.disable();
}
/**
* 判斷藍牙是否打開
*
* @return boolean
*/
public boolean isOpen() {
return this.bluetoothAdapter.isEnabled();
}
/**
* 搜索藍牙設備
*/
public void searchDevices() {
this.bondDevices.clear();
this.unbondDevices.clear();
// 尋找藍牙設備，android會將查找到的設備以廣播形式發出去
this.bluetoothAdapter.startDiscovery();
}
/**
* 添加未綁定藍牙設備到list集合
*
* @param device
*/
public void addUnbondDevices(BluetoothDevice device) {
System.out.println("未綁定設備名稱：" + device.getName());
if (!this.unbondDevices.contains(device)) {
this.unbondDevices.add(device);
}
}
/**
* 添加已綁定藍牙設備到list集合
*
* @param device
*/
public void addBandDevices(BluetoothDevice device) {
System.out.println("已綁定設備名稱：" + device.getName());
if (!this.bondDevices.contains(device)) {
this.bondDevices.add(device);
}
}
/**
* 藍牙廣播接收器
*/
private BroadcastReceiver receiver = new BroadcastReceiver() {
ProgressDialog progressDialog = null;
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
BluetoothDevice device = intent
.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (device.getBondState() == BluetoothDevice.BOND_BONDED) {
addBandDevices(device);
} else {
addUnbondDevices(device);
}
} else if (BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action)) {
progressDialog = ProgressDialog.show(context, "請稍等...",
"搜索藍牙設備中...", true);
} else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED
.equals(action)) {
System.out.println("設備搜索完畢");
progressDialog.dismiss();
addUnbondDevicesToListView();
addBondDevicesToListView();
// bluetoothAdapter.cancelDiscovery();
}
if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(action)) {
if (bluetoothAdapter.getState() == BluetoothAdapter.STATE_ON) {
System.out.println("--------打開藍牙-----------");
switchBT.setText("關閉藍牙");
searchDevices.setEnabled(true);
bondDevicesListView.setEnabled(true);
unbondDevicesListView.setEnabled(true);
} else if (bluetoothAdapter.getState() == BluetoothAdapter.STATE_OFF) {
System.out.println("--------關閉藍牙-----------");
switchBT.setText("打開藍牙");
searchDevices.setEnabled(false);
bondDevicesListView.setEnabled(false);
unbondDevicesListView.setEnabled(false);
}
}
}
};
}

到這里，第一個界面的代碼就寫完了，當我們點擊要打印的藍牙設備時就會跳轉到打印頁面，跳轉代碼在BluetoothService.java的addBondDevicesToListView()中

接下來讓我們來看看第二個界面的代碼，結構和第一個界面的代碼一樣，分類三個類，請看代碼。。。。。

PrintDataActivity.java

[java] view plain copy

public class PrintDataActivity extends Activity {
private Context context = null;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setTitle("藍牙打印");
this.setContentView(R.layout.printdata_layout);
this.context = this;
this.initListener();
}
/**
* 獲得從上一個Activity傳來的藍牙地址
* @return String
*/
private String getDeviceAddress() {
// 直接通過Context類的getIntent()即可獲取Intent
Intent intent = this.getIntent();
// 判斷
if (intent != null) {
return intent.getStringExtra("deviceAddress");
} else {
return null;
}
}
private void initListener() {
TextView deviceName = (TextView) this.findViewById(R.id.device_name);
TextView connectState = (TextView) this
.findViewById(R.id.connect_state);
PrintDataAction printDataAction = new PrintDataAction(this.context,
this.getDeviceAddress(), deviceName, connectState);
EditText printData = (EditText) this.findViewById(R.id.print_data);
Button send = (Button) this.findViewById(R.id.send);
Button command = (Button) this.findViewById(R.id.command);
printDataAction.setPrintData(printData);
send.setOnClickListener(printDataAction);
command.setOnClickListener(printDataAction);
}
@Override
protected void onDestroy() {
PrintDataService.disconnect();
super.onDestroy();
}
}

PrintDataAction.java

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<span style="font-size:14px">public class PrintDataAction implements OnClickListener {
private Context context = null;
private TextView deviceName = null;
private TextView connectState = null;
private EditText printData = null;
private String deviceAddress = null;
private PrintDataService printDataService = null;
public PrintDataAction(Context context, String deviceAddress,
TextView deviceName, TextView connectState) {
super();
this.context = context;
this.deviceAddress = deviceAddress;
this.deviceName = deviceName;
this.connectState = connectState;
this.printDataService = new PrintDataService(this.context,
this.deviceAddress);
this.initView();
}
private void initView() {
// 設置當前設備名稱
this.deviceName.setText(this.printDataService.getDeviceName());
// 一上來就先連接藍牙設備
boolean flag = this.printDataService.connect();
if (flag == false) {
// 連接失敗
this.connectState.setText("連接失敗！");
} else {
// 連接成功
this.connectState.setText("連接成功！");
}
}
public void setPrintData(EditText printData) {
this.printData = printData;
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.send) {
String sendData = this.printData.getText().toString();
this.printDataService.send(sendData + "\n");
} else if (v.getId() == R.id.command) {
this.printDataService.selectCommand();
}
}
}</span>

PrintDataService.java

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<span style="font-size:14px">public class PrintDataService {
private Context context = null;
private String deviceAddress = null;
private BluetoothAdapter bluetoothAdapter = BluetoothAdapter
.getDefaultAdapter();
private BluetoothDevice device = null;
private static BluetoothSocket bluetoothSocket = null;
private static OutputStream outputStream = null;
private static final UUID uuid = UUID
.fromString("00001101-0000-1000-8000-00805F9B34FB");
private boolean isConnection = false;
final String[] items = { "復位打印機", "標准ASCII字體", "壓縮ASCII字體", "字體不放大",
"寬高加倍", "取消加粗模式", "選擇加粗模式", "取消倒置打印", "選擇倒置打印", "取消黑白反顯", "選擇黑白反顯",
"取消順時針旋轉90°", "選擇順時針旋轉90°" };
final byte[][] byteCommands = { { 0x1b, 0x40 },// 復位打印機
{ 0x1b, 0x4d, 0x00 },// 標准ASCII字體
{ 0x1b, 0x4d, 0x01 },// 壓縮ASCII字體
{ 0x1d, 0x21, 0x00 },// 字體不放大
{ 0x1d, 0x21, 0x11 },// 寬高加倍
{ 0x1b, 0x45, 0x00 },// 取消加粗模式
{ 0x1b, 0x45, 0x01 },// 選擇加粗模式
{ 0x1b, 0x7b, 0x00 },// 取消倒置打印
{ 0x1b, 0x7b, 0x01 },// 選擇倒置打印
{ 0x1d, 0x42, 0x00 },// 取消黑白反顯
{ 0x1d, 0x42, 0x01 },// 選擇黑白反顯
{ 0x1b, 0x56, 0x00 },// 取消順時針旋轉90°
{ 0x1b, 0x56, 0x01 },// 選擇順時針旋轉90°
};
public PrintDataService(Context context, String deviceAddress) {
super();
this.context = context;
this.deviceAddress = deviceAddress;
this.device = this.bluetoothAdapter.getRemoteDevice(this.deviceAddress);
}
/**
* 獲取設備名稱
*
* @return String
*/
public String getDeviceName() {
return this.device.getName();
}
/**
* 連接藍牙設備
*/
public boolean connect() {
if (!this.isConnection) {
try {
bluetoothSocket = this.device
.createRfcommSocketToServiceRecord(uuid);
bluetoothSocket.connect();
outputStream = bluetoothSocket.getOutputStream();
this.isConnection = true;
if (this.bluetoothAdapter.isDiscovering()) {
System.out.println("關閉適配器！");
this.bluetoothAdapter.isDiscovering();
}
} catch (Exception e) {
Toast.makeText(this.context, "連接失敗！", 1).show();
return false;
}
Toast.makeText(this.context, this.device.getName() + "連接成功！",
Toast.LENGTH_SHORT).show();
return true;
} else {
return true;
}
}
/**
* 斷開藍牙設備連接
*/
public static void disconnect() {
System.out.println("斷開藍牙設備連接");
try {
bluetoothSocket.close();
outputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 選擇指令
*/
public void selectCommand() {
new AlertDialog.Builder(context).setTitle("請選擇指令")
.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
try {
outputStream.write(byteCommands[which]);
} catch (IOException e) {
Toast.makeText(context, "設置指令失敗！",
Toast.LENGTH_SHORT).show();
}
}
}).create().show();
}
/**
* 發送數據
*/
public void send(String sendData) {
if (this.isConnection) {
System.out.println("開始打印！！");
try {
byte[] data = sendData.getBytes("gbk");
outputStream.write(data, 0, data.length);
outputStream.flush();
} catch (IOException e) {
Toast.makeText(this.context, "發送失敗！", Toast.LENGTH_SHORT)
.show();
}
} else {
Toast.makeText(this.context, "設備未連接，請重新連接！", Toast.LENGTH_SHORT)
.show();
}
}
}</span>

到此，全部代碼貼完，也就大功告成了

對了對了，差點忘記一件很重要的事情！！清單文件忘記給權限啦！！

權限

[html] view plain copy

<span style="font-size:14px"><uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> </span>

注冊Activity

[html] view plain copy

<span style="font-size:14px"><activity android:name=".BluetoothActivity" />
<activity android:name=".PrintDataActivity" /> </span><span style="font-size:14px">
</span>

這下子就真的搞定了！

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查看評論

12樓泓豆奶茶昨天 10:32發表 [回復]: 按你說的還是成功不了，能加QQ聊嗎？qq:1584166172

11樓 zywxsg0612 4天前 15:42發表 [回復]: LZ 你好問個問題createRfcommSocketToServiceRecord(uuid)
對於其中的ＵＵＩＤ，我直接用生成器生成一個復制過去，在這里是可以用的嗎？
還是說uuid有什么特殊的？？百度了下貌似這個識別碼生成后就可以用了。。
還有就是后邊的打印指令
0x1b, 0x40
1b應該是esc 40是@ ？？
剛開始學着寫android 很多不是很懂，有些問題類似USB 啊打印機搜出來的都是各種廣告，很少和開發有關。。。

Re: reality_jie 4天前 16:25發表 [回復]: 回復zywxsg0612：uuid沒有特殊的，直接用生成器生成一個復制過去可以

Re: zywxsg0612 前天 09:59發表 [回復]: 回復reality_jie：謝謝。。。

10樓 xingzjx 2013-12-06 15:07發表 [回復]: 謝謝樓主分享!!!

9樓 qq624196743 2013-11-29 17:52發表 [回復]: 碉堡了，好文啊

Re: reality_jie 2013-11-29 18:09發表 [回復]: 回復qq624196743：謝謝^_^o~ 努力！

8樓 csaily504768527 2013-11-29 11:07發表 [回復]: 樓主你好。我想請問一下，你的那些打印指令還有么。使用你上面的代碼打印中文時候會出現亂碼。。

Re: reality_jie 2013-11-29 11:10發表 [回復]: 回復csaily504768527：指令就這些。。但是我在我這里的幾台打印機測試都不會出現亂碼哦，如果出現亂碼，你嘗試在里邊修改一下
byte[] data = sendData.getBytes("gbk")：把gbk修改成utf-8

Re: csaily504768527 2013-11-29 11:33發表 [回復]: 回復reality_jie：樓主。。還是不成功。。我測試的設備是HP 100 便攜式藍牙打印機。。還嘗試了。。GB2312 .. BIG5... GBK 。等。都還是亂碼。。這怎么搞起。。好不科學啊。。-_-.......淚崩的節奏中。。

Re: reality_jie 2013-11-29 14:16發表 [回復]: 回復csaily504768527：出現亂碼的根本原因是打印機和手機發送的數據的編碼不統一。你先去確認一下你的打印機是用什么編碼來表示中文的

7樓蝸蝸牛快跑 2013-11-27 20:32發表 [回復]: 樓主，您好，我最近也想實現一個藍牙打印的功能。但是在藍牙通信的時候遇到了點問題，我的socket在connet這步，一直報錯：java.io.IOException: Service discovery failed。我用的UUID跟你是一樣的，我目前是想連接其他手機（已開啟藍牙服務）。您知道怎么解決么？

Re: reality_jie 2013-11-27 21:12發表 [回復]: 回復superbinbin1：這個代碼只能用於手機與打印機之間的連接哦

Re: 蝸蝸牛快跑 2013-11-27 23:15發表 [回復]: 回復reality_jie：這樣呀，那手機之間連接。。。用什么UUID？UUID的類型不是根據服務來選的么？因為我很好奇，安卓自帶的藍牙分享功能，幾乎是無論對方是什么藍牙，都可以把文件分享過去，手機之間自然不用說，電腦端的藍牙適配器也可以傳，hp的打印機我也有試過，可以直接發圖片過去打印。那么他是如何設計的???樓主大神幫忙解答疑惑呀，感激不盡。

Re: reality_jie 2013-11-29 18:11發表 [回復]: 回復superbinbin1：親，這個問題我也有待研究哦

6樓微揚的嘴角 2013-11-07 14:31發表 [回復]: 對任意型號藍牙打印機通用嗎？

Re: reality_jie 2013-11-07 14:40發表 [回復]: 回復feng52101：可以

5樓 bhald6821935 2013-10-18 11:20發表 [回復]: 樓主能發個源碼麼。謝謝646965572@qq.com

Re: reality_jie 2013-10-18 13:42發表 [回復]: 回復bhald6821935：http://download.csdn.net/detail/reality_jie/6418413
完整源碼

4樓 wang158210867 2013-10-12 16:01發表 [回復]: 有沒有遇到打不了中文或者中文亂碼問題呀

Re: csaily504768527 2013-11-29 11:37發表 [回復]: 回復wang158210867：哥們，你那個亂碼問題找到解決辦法木有。。或者是思路。。

Re: reality_jie 2013-10-12 17:25發表 [回復]: 回復wang158210867：我自己做的測試都沒有出現中文亂碼哦

3樓 zhafei1311 2013-09-27 15:50發表 [回復]: 有沒有打印圖片的代碼

Re: reality_jie 2013-09-27 17:38發表 [回復]: 回復u012243481：暫時沒有

2樓紅姬茄子 2013-09-25 14:45發表 [回復]: 樓主，我想問下這個android手機連接藍牙打印能不能指定文件打印呢，譬如說我指定一張圖片，或一個文檔什么的讓打印機打印，這種功能能否實現嘞，求指教，嘿嘿

Re: reality_jie 2013-09-25 17:08發表 [回復]: public void send(String sendData) {
if (this.isConnection) {
System.out.println("開始打印！！");
try {
byte[] data = sendData.getBytes("gbk");
outputStream.write(data, 0, data.length);
outputStream.flush();
} catch (IOException e) {
Toast.makeText(this.context, "發送失敗！", Toast.LENGTH_SHORT)
.show();
}
} else {
Toast.makeText(this.context, "設備未連接，請重新連接！", Toast.LENGTH_SHORT)
.show();

}
從這個打印方法可以看出，打印的數據是以二進制流發送出去的。也就是說，如果你想打印外部文檔，只要用一個輸入流，比如BufferedReader把數據讀入再轉成二進制流交給outputStream，應該是能實現的。至於圖片。。。暫時我就不知道怎么弄了

1樓紅姬茄子 2013-09-24 17:04發表 [回復]: 不錯不錯，多謝樓主分享，學習了，贊一個

Re: reality_jie 2013-09-24 17:31發表 [回復]: Y(^_^)Y

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