使垂直红线（机器人zxing栏code扫描仪） [英] Make vertical red line (android zxing barcode scanner )

问题描述

我能够改变zxing吧code扫描仪纵向模式。

I was able to change zxing barcode scanner portrait mode.

不过，红线仍显示水平。

However, the red line is still showing horizontally.

我怎样才能让红线垂直？

How can I make the red line vertically?

好像我有编辑以下codeS在ViewfinderView.java

It seems like I have to edit the following codes in ViewfinderView.java

 // Draw a red "laser scanner" line through the middle to show decoding is active
  paint.setColor(laserColor);
  paint.setAlpha(SCANNER_ALPHA[scannerAlpha]);
  scannerAlpha = (scannerAlpha + 1) % SCANNER_ALPHA.length;
  int middle = frame.height() / 2 + frame.top;`enter code here`
  canvas.drawRect(frame.left + 2, middle - 1, frame.right - 1, middle + 2, paint);

有人可以帮我编辑这些codeS？

Can somebody help me to edit those codes?

推荐答案

刚刚过去的两行改成这样：

Just change the last two lines to this:

int middle = frame.width() /2 + frame.left;
canvas.drawRect(frame.middle - 1, frame.top + 1, frame.middle + 1, frame.bottom -1, paint);

如果你想要的行越厚，最后一行改为

In case you want the line thicker, change the last line to

canvas.drawRect(frame.middle - 2, frame.top + 1, frame.middle + 2, frame.bottom -1, paint);

或者只是玩弄它一下。

Or just play around with it a bit.

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