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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 ?
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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
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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 > ???
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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
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? --> 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！
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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
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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);???? ????}???? ?????? ????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;???? ????}???? ???? ????? ? ???? ????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();???? ????}???? ???? ????? ? ???? ????@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())?{???? ?????????????????? ????????????????System.out.println("藍牙關閉的情況" );???? ????????????????this .bluetoothService.openBluetooth(activity);???? ????????????}?else ?{???? ?????????????????? ????????????????System.out.println("藍牙打開的情況" );???? ????????????????this .bluetoothService.closeBluetooth();???? ???? ????????????}???? ???? ????????}???? ????}???? ???? }</span>?? ?
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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 ;??? ????private ?ArrayList<BluetoothDevice>?bondDevices?=?null ;?? ????private ?Button?switchBT?=?null ;???? ????private ?Button?searchDevices?=?null ;???? ????private ?ListView?unbondDevicesListView?=?null ;???? ????private ?ListView?bondDevicesListView?=?null ;???? ???? ????? ? ???? ????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);?? ????????}???? ????????String[]?from?=?{?"deviceName" ?};???? ????????int []?to?=?{?R.id.device_name?};???? ????????SimpleAdapter?simpleAdapter?=?new ?SimpleAdapter(this .context,?data,???? ????????????????R.layout.bonddevice_item,?from,?to);???? ?????????? ????????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);???? ????????????????????}???? ????????????????});???? ???? ????}???? ???? ????? ? ???? ????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);?? ????????}???? ????????String[]?from?=?{?"deviceName" ?};???? ????????int []?to?=?{?R.id.device_name?};???? ????????SimpleAdapter?simpleAdapter?=?new ?SimpleAdapter(this .context,?data,???? ????????????????R.layout.unbonddevice_item,?from,?to);???? ???? ?????????? ????????this .unbondDevicesListView.setAdapter(simpleAdapter);???? ???? ?????????? ????????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));???? ?????????????????????????????? ????????????????????????????bondDevices.add(unbondDevices.get(arg2));???? ?????????????????????????????? ????????????????????????????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 .unbondDevices?=?new ?ArrayList<BluetoothDevice>();???? ????????this .bondDevices?=?new ?ArrayList<BluetoothDevice>();???? ????????this .switchBT?=?switchBT;???? ????????this .searchDevices?=?searchDevices;???? ????????this .initIntentFilter();???? ???? ????}???? ???? ????private ?void ?initIntentFilter()?{???? ?????????? ????????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);???? ?????????? ????????context.registerReceiver(receiver,?intentFilter);???? ???? ????}???? ???? ????? ? ???? ????public ?void ?openBluetooth(Activity?activity)?{???? ????????Intent?enableBtIntent?=?new ?Intent(???? ????????????????BluetoothAdapter.ACTION_REQUEST_ENABLE);???? ????????activity.startActivityForResult(enableBtIntent,?1 );???? ???? ????}???? ???? ????? ? ???? ????public ?void ?closeBluetooth()?{???? ????????this .bluetoothAdapter.disable();???? ????}???? ???? ????? ? ? ? ???? ????public ?boolean ?isOpen()?{???? ????????return ?this .bluetoothAdapter.isEnabled();???? ???? ????}???? ???? ????? ? ???? ????public ?void ?searchDevices()?{???? ????????this .bondDevices.clear();???? ????????this .unbondDevices.clear();???? ???? ?????????? ????????this .bluetoothAdapter.startDiscovery();???? ????}???? ???? ????? ? ? ? ???? ????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);???? ????????}???? ????}???? ???? ????? ? ? ? ???? ????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);???? ????????}???? ????}???? ???? ????? ? ???? ????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();???? ?????????????????? ????????????}???? ????????????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
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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。。。。。
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PrintDataActivity.java
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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();???? ????}???? ???? ????? ? ? ???? ????private ?String?getDeviceAddress()?{???? ?????????? ????????Intent?intent?=?this .getIntent();???? ?????????? ????????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()?{???? ?????????? ????????this .deviceName.setText(this .printDataService.getDeviceName());???? ?????????? ????????boolean ?flag?=?this .printDataService.connect();???? ????????if ?(flag?==?false )?{???? ?????????????? ????????????this .connectState.setText("連接失敗！" );???? ????????}?else ?{???? ?????????????? ????????????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" ,?"標準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 ?},?? ????????????{?0x1b ,?0x4d ,?0x00 ?},?? ????????????{?0x1b ,?0x4d ,?0x01 ?},?? ????????????{?0x1d ,?0x21 ,?0x00 ?},?? ????????????{?0x1d ,?0x21 ,?0x11 ?},?? ????????????{?0x1b ,?0x45 ,?0x00 ?},?? ????????????{?0x1b ,?0x45 ,?0x01 ?},?? ????????????{?0x1b ,?0x7b ,?0x00 ?},?? ????????????{?0x1b ,?0x7b ,?0x01 ?},?? ????????????{?0x1d ,?0x42 ,?0x00 ?},?? ????????????{?0x1d ,?0x42 ,?0x01 ?},?? ????????????{?0x1b ,?0x56 ,?0x00 ?},?? ????????????{?0x1b ,?0x56 ,?0x01 ?},?? ????};???? ???? ????public ?PrintDataService(Context?context,?String?deviceAddress)?{???? ????????super ();???? ????????this .context?=?context;???? ????????this .deviceAddress?=?deviceAddress;???? ????????this .device?=?this .bluetoothAdapter.getRemoteDevice(this .deviceAddress);???? ????}???? ???? ????? ? ? ? ???? ????public ?String?getDeviceName()?{???? ????????return ?this .device.getName();???? ????}???? ???? ????? ? ???? ????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 ;???? ????????}???? ????}???? ???? ????? ? ???? ????public ?static ?void ?disconnect()?{???? ????????System.out.println("斷開藍牙設備連接" );???? ????????try ?{???? ????????????bluetoothSocket.close();???? ????????????outputStream.close();???? ????????}?catch ?(IOException?e)?{???? ?????????????? ????????????e.printStackTrace();???? ????????}???? ???? ????}???? ???? ????? ? ???? ????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();???? ????}???? ???? ????? ? ???? ????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
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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
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< 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 plaincopy
< 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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0 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) 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臺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 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：這個代碼只能用于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 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) {? 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 您還沒有登錄,請[登錄]或[注冊] * 以上用戶言論只代表其個人觀點，不代表CSDN網站的觀點或立場
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reality_jie ?
2013年11月(4) 2013年10月(7) 2013年09月(6) android(11) javaSE(2) oracle(4) 安卓手機連接藍牙打印機實現打印功能(958) android通過服務實現消息推送(363) android加載大圖片到內存(304) android從圖庫(gallery)選擇一張圖片(299) 安卓短信發送器(247) oracle變異表觸發器中ORA-04091錯誤原因及解決方案(243) android.view.ViewRootImpl$CalledFromWrongThreadException異常處理(231) java多線程同步：生產者與消費者問題(203) android+lucene實現全文檢索并高亮關鍵字(192) andorid使用異步http框架和第三方HttpClinet上傳文件(171) 安卓手機連接藍牙打印機實現打印功能(28) android加載大圖片到內存(1) android從圖庫(gallery)選擇一張圖片(0) android通過服務實現消息推送(0) 安卓短信發送器(0) java多線程同步：生產者與消費者問題(0) andorid使用異步http框架和第三方HttpClinet上傳文件(0) android.view.ViewRootImpl$CalledFromWrongThreadException異常處理(0) android.os.NetworkOnMainThreadException異常處理(0) adb server is out of date. killing解決方案(0) 安卓手機連接藍牙打印機實現打印功能 泓豆奶茶: 按你說的還是成功不了，能加QQ聊嗎？qq:1584166172
安卓手機連接藍牙打印機實現打印功能 zywxsg0612: @reality_jie:謝謝。。。
安卓手機連接藍牙打印機實現打印功能 reality_jie: @zywxsg0612:uuid沒有特殊的，直接用生成器生成一個復制過去可以
安卓手機連接藍牙打印機實現打印功能 zywxsg0612: LZ 你好 問個問題createRfcommSocketToServiceRecord(uuid)對...
安卓手機連接藍牙打印機實現打印功能 xingzjx: 謝謝樓主分享!!!
安卓手機連接藍牙打印機實現打印功能 reality_jie: @superbinbin1:親，這個問題我也有待研究哦
安卓手機連接藍牙打印機實現打印功能 reality_jie: @qq624196743:謝謝^_^o~ 努力！
安卓手機連接藍牙打印機實現打印功能 qq624196743: 碉堡了，好文啊
安卓手機連接藍牙打印機實現打印功能 reality_jie: @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...
安卓手機連接藍牙打印機實現打印功能 csaily504768527: @wang158210867:哥們，你那個亂碼問題找到解決辦法木有。。或者是思路。。
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