二维码

• 扫描区域的绘制

  • 布局实现

    <SurfaceView
    android:id="@+id/preview_view"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" />

    <com.google.zxing.client.android.decode.ViewfinderView
    android:id="@+id/viewfinder_view"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true" />

• 初始化相机管理器

    cameraManager = new CameraManager(getApplication());
  
    viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view);
    viewfinderView.setCameraManager(cameraManager);
  
    handler = null;
    SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view);
    SurfaceHolder surfaceHolder = surfaceView.getHolder();
    if (hasSurface) {
        // The activity was paused but not stopped, so the surface still
        // exists. Therefore
        // surfaceCreated() won't be called, so init the camera here.
        initCamera(surfaceHolder);
    } else {
        // Install the callback and wait for surfaceCreated() to init the
        // camera.
        surfaceHolder.addCallback(this);
        surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    }
  

• 解析扫描结果

    public void handleDecode(Result rawResult, Bitmap barcode) {
    inactivityTimer.onActivity();
    ResultHandler resultHandler = ResultHandlerFactory.makeResultHandler(
            this, rawResult);
  
    boolean fromLiveScan = barcode != null;
    if (fromLiveScan) {
        // Then not from history, so beep/vibrate and we have an image to
        // draw on
        beepManager.playBeepSoundAndVibrate();
        // drawResultPoints(barcode, rawResult);
        viewfinderView.drawResultBitmap(barcode);
    }
  
    String text = rawResult.getText();
  
    Toast.makeText(this, "扫描结果:" + text, Toast.LENGTH_LONG).show();
    Log.d(TAG, "result-->" + text);
  

  }