CaptureActivity.java 文件源码

@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);

    Window window = getWindow();
    window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    setContentView(R.layout.activity_capture);

    scanPreview = (SurfaceView) findViewById(R.id.capture_preview);
    scanContainer = (RelativeLayout) findViewById(R.id.capture_container);
    scanCropView = (RelativeLayout) findViewById(R.id.capture_crop_view);
    scanLine = (ImageView) findViewById(R.id.capture_scan_line);

    inactivityTimer = new InactivityTimer(this);
    beepManager = new BeepManager(this);

    TranslateAnimation animation = new TranslateAnimation(Animation.RELATIVE_TO_PARENT, 0.0f, Animation
            .RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT,
            0.9f);
    animation.setDuration(4500);
    animation.setRepeatCount(-1);
    animation.setRepeatMode(Animation.RESTART);
    scanLine.startAnimation(animation);
}