UIImagePickerController全屏

UIImagePickerController全屏设置

最新推荐文章于 2017-08-13 23:02:32 发布

原创最新推荐文章于 2017-08-13 23:02:32 发布 · 4.8k 阅读

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CC 4.0 BY-SA版权

文章标签：

#ios #Camera #图片 #相机

本文介绍如何将UIImagePickerController调整为全屏显示。通过设置cameraViewTransform属性并利用屏幕尺寸和期望的宽高比，可以实现该控件的全屏展示。

UIImagePickerController的默认比例是4：3，如果想要全屏的话，要对应的设置transform

Swift

let screenSize = UIScreen.mainScreen().bounds.size
let aspectRatio:CGFloat = 4.0/3.0
let scale = screenSize.height/screenSize.width * aspectRatio
self.imagePikerViewController.cameraViewTransform = CGAffineTransformMakeScale(scale, scale);

Objective C

CGSize screenSize = [[UIScreen mainScreen] bounds].size;
float aspectRatio = 4.0/3.0;
float scale = screenSize.height/screenSize.width * aspectRatio;
self.imagePikerViewController.cameraViewTransform = CGAffineTransformMakeScale(scale, scale);

效果