我希望把自定义的边框围绕zxing捕捉屏幕（相机屏幕）。我需要什么修改，使这个？哪些活动和布局，我需要改变，以有这样的效果吗？

I want to put custom border around zxing capture screen (camera screen). What modification would I need to make for this? Which activity and layouts would I need to change to have this effect?

推荐答案

您并不需要在所有的编辑布局。

You don't need to edit layouts at all.

在 ViewfinderView 找到的OnDraw 方法。这是绘制扫描矩形的核心。你可以修改你想要的方式。

In ViewfinderView find onDraw method. It's the core that draws the "scanning rectangle". You can modify it the way you want.

在code，实际上绘制矩形，可以发现here:

The code that actually draws the rectangle can be found here:

// Draw the exterior (i.e. outside the framing rect) darkened
paint.setColor(resultBitmap != null ? resultColor : maskColor);
canvas.drawRect(0, 0, width, frame.top, paint);
canvas.drawRect(0, frame.top, frame.left, frame.bottom + 1, paint);
canvas.drawRect(frame.right + 1, frame.top, width, frame.bottom + 1, paint);
canvas.drawRect(0, frame.bottom + 1, width, height, paint);