我使用的uni-app <template> <view class="bluetooth"> <!-- 發送數據 --> <view class="send" v-if="send_data_onoff"> <view class="uni-textarea"> <textarea placeholder-style="color:#F76260" v-model="send_data_list" placeholder="請輸入發送數據"/> <view @tap="send_data" class="fasong">發送</view> </view> </view> <!-- 沒有匹配的藍牙設備 --> <view class="no_match_bluetooth_list" v-if="no_match_list.length!=0"> <view class="h1">已搜索的藍牙：</view> <block v-for="(item,index) in no_match_list" :key="index"> <view class="uni-list" @tap="search_bluetooth(item.SN)"> <view class="uni-list-cell" hover-class="uni-list-cell-hover"> <view class="uni-list-cell-navigate uni-navigate-right uni-media-list "> <view class="uni-media-list-body"> <view>藍牙名稱:{{item.name}}</view> <view>SN:{{item.SN}}</view> </view> </view> </view> </view> </block> </view> <!-- 已匹配的藍牙設備 --> <view class="no_match_bluetooth_list" v-if="match_list.length!=0"> <view class="h1">已匹配的藍牙：</view> <block v-for="(item,index) in match_list" :key="index"> <view class="uni-list" @tap="print(item.SN)"> <view class="uni-list-cell" hover-class="uni-list-cell-hover"> <view class="uni-list-cell-navigate uni-navigate-right uni-media-list "> <view class="uni-media-list-body"> <view>藍牙名稱:{{item.name}}</view> <view>SN:{{item.SN}}</view> </view> </view> </view> </view> </block> </view> <view class="btn"> <view class="btn_1" @tap="open_bluetooth">打開藍牙</view> <view class="btn_2" @tap="close_bluetooth">關閉藍牙</view> <view class="btn_3" @tap="search_bluetooth">搜索藍牙</view> </view> </view> </template> <script> var main, Context, BluetoothManager, BluetoothAdapter, BManager, BAdapter,BluetoothDevice,IntentFilter,bluetoothSocket,device; export default { data() { return { bArray:[],//用於搜索藍牙去重用的 no_match_list:[],//沒有配對的藍牙列表 match_list:[],//已配對的藍牙列表 send_data_onoff:false, send_data_list:'',//要發送的數據 }; }, onShow() { //獲取android應用Activity對象 main = plus.android.runtimeMainActivity(); Context = plus.android.importClass("android.content.Context"); BManager = main.getSystemService(Context.BLUETOOTH_SERVICE); //藍牙適配器 BluetoothAdapter = plus.android.importClass("android.bluetooth.BluetoothAdapter"); //藍牙本地適配器 BAdapter = BluetoothAdapter.getDefaultAdapter(); //藍牙設備 BluetoothDevice = plus.android.importClass('android.bluetooth.BluetoothDevice'); //過濾器 IntentFilter = plus.android.importClass('android.content.IntentFilter'); }, methods:{ /** * 根據藍牙地址，連接設備 * @param {Object} address * @return {Boolean} */ print(address){ console.log(address) let that=this uni.showModal({ title: '提示', content: '是連接此藍牙？', success: function (res) { if (res.confirm) { console.log('用戶點擊確定'); uni.showLoading({ title: '藍牙連接中...' }); that.print_bluetooth(address) } } }); }, //連接藍牙 print_bluetooth(mac_address){ let that=this uni.hideLoading() let UUID = plus.android.importClass("java.util.UUID"); let uuid = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); device = BAdapter.getRemoteDevice(mac_address); plus.android.importClass(device); bluetoothSocket = device.createInsecureRfcommSocketToServiceRecord(uuid); plus.android.importClass(bluetoothSocket); if (!bluetoothSocket.isConnected()) { console.log('檢測到設備未連接，嘗試連接....'); bluetoothSocket.connect(); } console.log('設備已連接'); // 打開輸入發送數據 that.send_data_onoff=true; }, //發送藍牙數據 send_data(){ let that=this console.log() if (bluetoothSocket.isConnected()) { console.log(22222) var outputStream = bluetoothSocket.getOutputStream(); plus.android.importClass(outputStream); var string = that.send_data_list var bytes = plus.android.invoke(string, 'getBytes', 'gbk');//創建輸出流失敗 outputStream.write(bytes); // outputStream.flush(); // device = null //這里關鍵 // bluetoothSocket.close(); //必須關閉藍牙連接否則意外斷開的話打印錯誤 } }, open_bluetooth(){ if(!BAdapter.isEnabled()) { BAdapter.enable();//啟動藍牙 uni.showToast({ title: '藍牙已啟動', duration: 2000 }) } }, //關閉藍牙 close_bluetooth(){ let that =this //關閉藍牙都把之前的清空 that.no_match_list=[]; that.match_list=[] if (BAdapter.isEnabled()) { BAdapter.disable();//關閉藍牙 uni.showToast({ title: '藍牙已關閉', duration: 2000 }) } }, //獲取已匹配藍牙設備 bluetooth_list(){ let that=this //先清空 that.match_list=[] var lists = BAdapter.getBondedDevices(); plus.android.importClass(lists); var iterator = lists.iterator(); plus.android.importClass(iterator); while (iterator.hasNext()) { var d = iterator.next(); plus.android.importClass(d); let arr={ "name": d.getName(), "SN": d.getAddress() } that.match_list.push(arr) } }, //搜索沒匹配的藍牙設備 search_bluetooth(address){ let that=this //判斷藍牙是否開啟 if (!BAdapter.isEnabled()) { uni.showToast({ title: '請先打開藍牙', duration: 3000 }); return } if(address.length!=undefined){ uni.showModal({ title: '提示', content: '是否配對此藍牙？', success: function (res) { if (res.confirm) { console.log('用戶點擊確定'); uni.showLoading({ title: '藍牙匹配中...' }); that.search_pipei(address) } } }); }else{ uni.showLoading({ title: '藍牙搜索中...' }); that.search_pipei() } }, //搜索和匹配藍牙 search_pipei(address){ let that=this //獲取已匹配的藍牙 that.bluetooth_list() //每次搜索都把之前的清空 that.bArray=[]; that.no_match_list=[]; var filter = new IntentFilter(); var BDevice = new BluetoothDevice(); BAdapter.startDiscovery(); //開啟搜索 var receiver = plus.android.implements('io.dcloud.android.content.BroadcastReceiver', { onReceive: function(context, intent) { //回調 try { plus.android.importClass(intent); //通過intent實例引入intent類 if(intent.getAction() == "android.bluetooth.adapter.action.DISCOVERY_FINISHED") { uni.hideLoading() main.unregisterReceiver(receiver); //取消監聽 } else { //從Intent中獲取設備對象 BDevice= intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); //配對藍牙 if (address == BDevice.getAddress()) { if (BDevice.createBond()) { //配對命令.createBond() console.log("配對成功"); uni.hideLoading() } } if(BDevice == null) { main.unregisterReceiver(receiver); //取消監聽 uni.hideLoading() //獲取已匹配的藍牙 that.bluetooth_list() return; } var name=BDevice.getAddress()+BDevice.getName(); if(that.bArray.indexOf(name) == -1){ //去重 that.bArray.push(name);//用於去重的 let arr={ "name": BDevice.getName(), "SN": BDevice.getAddress() } that.no_match_list.push(arr) console.log(JSON.stringify(that.no_match_list)) } } } catch(e) { console.error(e); } } }); filter.addAction(BDevice.ACTION_FOUND); filter.addAction(BAdapter.ACTION_DISCOVERY_STARTED); filter.addAction(BAdapter.ACTION_DISCOVERY_FINISHED); filter.addAction(BAdapter.ACTION_STATE_CHANGED); main.registerReceiver(receiver, filter); //注冊監聽 }, } } </script> <style scoped="scoped" lang="scss"> @import "./Bluetooth.scss"; </style>
css
.bluetooth{ padding: 20upx 20upx 120upx; .h1{ padding: 20upx 0;color: #1482D1;border-top: 1upx solid #EFEFF4; } .btn{ display:flex;position:fixed;bottom:0upx;padding:20upx 10upx;justify-content:space-around;width: 100%;color:#fff;border-top:1px solid #f2f2f2;background-color: #fff; view{ width: 200upx;height: 80upx;line-height:80upx;text-align: center;border-radius:10upx; } .btn_1{ background-color: #009BDE; } .btn_2{ background-color: red; } .btn_3{ background-color: #3CB371; } } .uni-textarea{ textarea{ border: 1px solid #EFEFF4;border-radius: 10px;width: 100%;padding: 10upx;box-sizing: border-box; } .fasong{ width: 100%;padding:15upx 10upx;box-sizing: border-box;border-radius: 10px;background: #1482D1;text-align: center;color: white;margin: 10px 0; } } }
如果報錯你可能需要下載一個藍牙開發助手當服務端