我有一台蓝牙打印机,我通常从我的Android应用程序打印英文字符,但是当我写阿拉伯字符时,它打印错误。 我在写入打印机时尝试对outputstream进行编码但没有结果。 这是我的代码
Set<BluetoothDevice> pairedDevices = mBluetoothAdapter
.getBondedDevices();
if (pairedDevices.size() > 0) {
for (BluetoothDevice device : pairedDevices) {
if (device.getName().equalsIgnoreCase("BlueTooth Printer")) {
mmDevice = device;
break;
}
}
}
这是我打印数据的方式:
void sendData() throws IOException {
try {
// the text typed by the user
String msg = myTextbox.getText().toString();
msg += "\n";
mmOutputStream.write(msg.getBytes(Charset.forName("UTF-8")));
// tell the user data were sent
myLabel.setText("Data Sent");
} catch (NullPointerException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}