FastBluetooth

一个快速连接蓝牙打印机的工具。

使用方法

build.gradle

Step 1. Add the JitPack repository to your build file

Add it in your root build.gradle at the end of repositories:

allprojects {
	repositories {
		...
		maven { url 'https://jitpack.io' }
	}
}

Step 2. Add the dependency

dependencies {
	 implementation 'com.github.chenxkang:FastBluetooth:v1.0.3'
}

示例

1、检查系统是否支持蓝牙

  BTManager.getDefault().isSupport()；

2、检查蓝牙开启/关闭

  BTManager.getDefault().isEnabled()；

3、初始化，注册广播、销毁广播

  BTManager.getDefault().init();
  
  BTManager.getDefault().register(this, mReceiver,
            BluetoothAdapter.ACTION_STATE_CHANGED);
            
  BTManager.getDefault().unregister(this, mReceiver);

4、通过蓝牙地址连接打印机

  BTManager.getDefault().connect(address, new OnConnectListener() {
              @Override
              public void onPreConnect() {
                  // 连接之前
              }
  
              @Override
              public void onPostConnect() {
                  // 连接成功
              }
  
              @Override
              public void onError(String error) {
                  // 连接失败
              }
  });

5、自定义打印机指令

 List<byte[]> commands = null;
 try {
     commands = BTCommand.getDefault()
             .init(BTCommand.CPCL, 76, 130)
             .printLine(10, 60, 500, 60, 1)
             .printText(BTCommand.TEXT, 10, 70, 8, 2, 2, true, "中华人民共和国")
             .printBox(10, 130, 500, 160, 1)
             .printText(BTCommand.TEXT_WHITE, 10, 170, 8, "我爱你")
             .printBarcode(BTCommand.BARCODE, BTCommand.CODE128, 10, 210, 2, 1, 80, true, "20200520")
             .printQRCode(BTCommand.BARCODE, 300, 210, 5, "我爱中国")
             .printImage(10, 320, BitmapFactory.decodeResource(getResources(), R.drawable.icon_fu), 100, 100)
             .commit();
 } catch (Exception e) {
     e.printStackTrace();
 }

6、向蓝牙打印机发送数据

 BTManager.getDefault().post(address, commands, new OnResultListener() {
             @Override
             public void onSuccess() {
                 // 打印成功
             }
 
             @Override
             public void onError(String error) {
                 // 打印失败
             }
 });