在中心缩放实时iPhone相机视图，“CGAffineTransformTranslate”不工作 [英] Scaled live iPhone Camera view in center, "CGAffineTransformTranslate" not working

问题描述

我有一点我无法解决的问题。我真的希望有人可以帮助我。我想调整实时相机视图的大小并将其放在中心，使用下面的代码：

I have a little problem which I could not solve. I really hope someone can help me with that. I wanted to resize the live camera view and place it in the center, using the following code below:

    picker.cameraViewTransform = CGAffineTransformScale(picker.cameraViewTransform, 0.5, 0.56206);
    picker.cameraViewTransform = CGAffineTransformTranslate(picker.cameraViewTransform, 80, 120);

但我得到的只是屏幕左上角的1​​/2尺寸缩放视图。似乎CGAffineTransformTranslate什么都不做。即使在我使用时翻译也不起作用：

But all I got was a scaled 1/2 sized view on the top left of the screen. It seems as though "CGAffineTransformTranslate" does nothing at all. The translation didn't work even when I used:

     picker.cameraViewTransform = CGAffineTransformMake(1, 0, 0, 1, 80, 120);

翻译部分似乎对实时摄像机视图没有影响。
希望有人可以启发我。

The translation portion seems to have no effect on the live camera view. Hope someone can enlighten me.

谢谢。

推荐答案

<我是在同一条船上。我所做的是物理移动拾取器框架。

I was in the same boat. What I did was physically move the picker frame.

[picker.view setFrame:CGRectMake(xOffset,yOffset,picker.view.frame.size.width,picker.view.frame.size.height)];

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