#libzxing二维码扫描库
-keep class com.jwsd.libzxing.** {  *;}
-dontwarn com.jwsd.libzxing.**
-keep class com.google.zxing.** {  *;}
-dontwarn com.google.zxing.**

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        //注册onActivityResult
        QRCodeManager.getInstance().with(this).onActivityResult(requestCode, resultCode, data);
    }

 public void onScanQR(View view) {
        QRCodeManager.getInstance()
                .with(this)
                .setReqeustType(1)//可以不设置，默认是0
                .scanningQRCode(new OnQRCodeScanCallback() {
                    @Override
                    public void onCompleted(String result) {//扫描成功之后回调，result就是扫描的结果
                        controlLog.append("\n\n(结果)" + result);
                    }

                    @Override
                    public void onError(Throwable errorMsg) {//扫描出错的时候回调
                        controlLog.append("\n\n(错误)" + errorMsg.toString());
                    }

                    @Override
                    public void onCancel() {//取消扫描的时候回调
                        controlLog.append("\n\n(取消)扫描任务取消了");
                    }
                });
    }

QRCodeManager.getInstance().with(this).scanningQRCode(requestCode);

   @Override
   protected void onActivityResult(int requestCode, int resultCode, Intent data) {
       super.onActivityResult(requestCode, resultCode, data);
       //扫描之后，自己处理扫描结果
      }