var device = null,
	    BAdapter = null,  
	    BluetoothAdapter = null,  
		UUID=null,
	    uuid = null,  
	    main = null,  
	    bluetoothSocket = null; 
		
		
/*
调用实例
let printStr = '! 0 200 200 640 1\n'
									+'PAGE-WIDTH 640\n'
									+'PW 848\n'
									+'TONE 0\n'
									+'SPEED 0\n'
									+'GAP-SENSE\n'
									+'NO-PACE\n'
									+'POSTFEED 0\n'
									+'LEFT\n'
									+'T 65 1 20 20 物料编码：\n'
									+'SETBOLD 2\n'
									+'T 65 1 135 20 44-02929-1\n'
									+'SETBOLD 0\n'
									+'T 65 0 20 50 物料描述：\n'
									+'T 65 1 135 50 面板440220101\n'
									+'T 65 1 20 80 供应商代码：\n'
									+'T 65 1 160 80 S00001 \n' 
									+'T 65 0 20 110 供应商：\n'
									+'T 65 1 135 110 成都京东方科技公司\n'
									+'T 65 0 20 140 制造日期：\n'
									+'T 65 1 135 140 2023.01.06 00:00\n'
									+'T 65 0 20 170 有效期至：\n'
									+'T 65 1 135 170 2024.01.06 00:00\n'
									+'T 65 0 20 200 批次：\n'
									+'T 65 1 135 200 LOT102901\n'
									+'T 65 0 20 230 数量：\n'
									+'T 65 1 135 230 300\n'
									+'T 65 0 20 260 SN：\n'
									+'T 65 1 135 260 BXX2212150006001\n' 
									+'SETBOLD 2\n'
									+'SETBOLD 0\n'
									+'B QR 20 290 M 12 H 4\n'
									+'MA,BXX2212150006001\n'
									+'ENDQR\n'
									+'B 128 2 1 50 50 560 BXX2212150006001\n'
									+'T 65 1 200 620 BXX2212150006001\n'
									+'FORM\n'
									+'PRINT\n'; 
print("00:21:76:63:88:22",printStr) //mac地址，可以在打印机上看;

适用于蓝牙打印机CPLP协议指令集
*/		
function print(mac_address,printStr) { 
    if (!mac_address) {  
        mui.toast('请选择蓝牙打印机');  
        return false;  
    }  
	
    main = plus.android.runtimeMainActivity();  
    BluetoothAdapter = plus.android.importClass("android.bluetooth.BluetoothAdapter");  
    UUID = plus.android.importClass("java.util.UUID");  
    uuid = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");  
    BAdapter = BluetoothAdapter.getDefaultAdapter()
	device = BAdapter.getRemoteDevice(mac_address) 
    
	plus.android.importClass(device);  
    bluetoothSocket = device.createInsecureRfcommSocketToServiceRecord(uuid);
    plus.android.importClass(bluetoothSocket);  

    if (!bluetoothSocket.isConnected()) {  
        console.log('检测到设备未连接，尝试连接....');  
        bluetoothSocket.connect(); 
    }  
	
	if (bluetoothSocket.isConnected()) {
	    console.log('设备已连接');
	}  
      

    if (bluetoothSocket.isConnected()) {  
        var outputStream = bluetoothSocket.getOutputStream();  
        plus.android.importClass(outputStream);   
        var bytes = plus.android.invoke(printStr, 'getBytes', 'gbk');  
		console.log('打印的标签是'+printStr);  
        outputStream.write(bytes);  
        outputStream.flush();  
        device = null //这里关键  
        bluetoothSocket.close(); //必须关闭蓝牙连接否则意外断开的话打印错误  
		return true;
    } 
	 else
	 {
		return false;
	 }

}
export {
	print,
	//getDefaultPrinterIndex
}