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大佬们做过蓝牙打印吗 uniapp 里基于安卓的好像

 2 years ago
source link: https://www.v2ex.com/t/831112
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大佬们做过蓝牙打印吗 uniapp 里基于安卓的好像

  qwertyzzz · 1 天前 · 674 次点击

但是目前 80%可以打印 20%的概率会出现打印机的蓝牙图标闪烁 但是打印不出来。。

var BluetoothAdapter = plus.android.importClass("android.bluetooth.BluetoothAdapter");
		var BAdapter = BluetoothAdapter.getDefaultAdapter();
		var UUID = plus.android.importClass("java.util.UUID");
		var uuid = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
		var device = BAdapter.getRemoteDevice(bluetoothInfo.address);
		plus.android.importClass(device);
		var bluetoothSocket = device.createInsecureRfcommSocketToServiceRecord(uuid);
		plus.android.importClass(bluetoothSocket);
		if (!bluetoothSocket.isConnected()) {
			console.log(bluetoothSocket.isConnected())
			bluetoothSocket.connect()
			console.log('连接蓝牙')
			console.log(bluetoothSocket.isConnected())
			if (!bluetoothSocket.isConnected()) {
				return uni.$u.toast('蓝牙连接失败')
			}
		}

基本代码是这个 不过我每次打印都会调用一下这个代码 有的时候连续打也没问题


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