UIImagePickerController全屏

UIImagePickerController的默认比例是4&＃xff1a;3&＃xff0c;如果想要全屏的话&＃xff0c;要对应的设置transform

Swift

let screenSize &＃61; UIScreen.mainScreen().bounds.size
let aspectRatio:CGFloat &＃61; 4.0/3.0
let scale &＃61; screenSize.height/screenSize.width * aspectRatio
self.imagePikerViewController.cameraViewTransform &＃61; CGAffineTransformMakeScale(scale, scale);

Objective C

CGSize screenSize &＃61; [[UIScreen mainScreen] bounds].size;
float aspectRatio &＃61; 4.0/3.0;
float scale &＃61; screenSize.height/screenSize.width * aspectRatio;
self.imagePikerViewController.cameraViewTransform &＃61; CGAffineTransformMakeScale(scale, scale);

效果

stackoverflow这个问题链接

http://stackoverflow.com/a/31152178/3940672
那个leo就是博主我啦