NextQRCode ZXing开源库的精简版

基于ZXing Android实现生成二维码图片和相机扫描二维码图片即时解码的功能

与原ZXingMini项目对比

NextQRCode做了重大架构修改，原ZXingMini项目与当前NextQRCode不兼容

dependencies {    compile 'com.github.yoojia:next-qrcode:2.0-2'    ...}复制代码

生成二维码图案

// 二维码中间图标final Bitmap centerImage = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);// 生成的二维码图案Bitmap qrCodeImage = new QRCodeEncoder.Builder()        .width(size) // 二维码图案的宽度        .height(size)        .paddingPx(0) // 二维码的内边距        .marginPt(3) // 二维码的外边距        .centerImage(centerImage) // 二维码中间图标        .build()        .encode(content);复制代码

二维码解码

final QRCodeDecoder mDecoder = new QRCodeDecoder.Builder().build();// 传入二维码图案Bitmap对象然后解码成文本内容String content = mDecoder.decode(bitmap);复制代码

使用 LiveCameraView 自动扫描解码

public class QRCodeScanActivity extends AppCompatActivity {    public static final String TAG = QRCodeScanActivity.class.getSimpleName();    private LiveCameraView mLiveCameraView;    private ImageView mCaptureImage;    private TextView mContentView;    private final CaptureCallback mCaptureCallback = new CaptureCallback() {        @Override public void onCaptured(Bitmap bitmap) {            Log.i(TAG, "-> Got bitmap, show to capture view");            mCaptureImage.setImageBitmap(bitmap);            Observable.just(bitmap)                    .map(new Func1
    
     () {                        private final QRCodeDecoder mDecoder = new QRCodeDecoder.Builder().build();                        @Override                        public String call(Bitmap bitmap) {                            return mDecoder.decode(bitmap);                        }                    })                    .subscribeOn(Schedulers.computation())                    .observeOn(AndroidSchedulers.mainThread())                    .subscribe(new Action1
     
      () {                        @Override public void call(String content) {                            mContentView.setText(content);                        }                    });        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        Window window = getWindow();        window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);        setContentView(R.layout.activity_scan);        mCaptureImage = (ImageView) findViewById(R.id.capture_image);        mContentView = (TextView) findViewById(R.id.content);        mLiveCameraView = (LiveCameraView) findViewById(R.id.capture_preview_view);        mLiveCameraView.setPreviewReadyCallback(new CameraPreviewView.PreviewReadyCallback() {            @Override            public void onStarted(Camera camera) {                Log.i(TAG, "-> Camera started, start to auto capture");                mLiveCameraView.startAutoCapture(1500, mCaptureCallback);            }            @Override            public void onStopped() {                Log.i(TAG, "-> Camera stopped");                mLiveCameraView.stopAutoCapture();            }        });    }}复制代码
     
    

基于ZXing Android实现生成二维码图片和相机扫描二维码图片即时解码的功能