直接上代码；对UIImagePickerController扩展：
//// UIImagePickerController+StatusBarHidden.m// //// Created by fangmi-huangchengda on 15/7/28.////#import "UIImagePickerController+StatusBarHidden.h"#import <objc/runtime.h>@implementation UIImagePickerController (StatusBarHidden)- (void)viewDidLoad{[super viewDidLoad];[self setHidetatusBar:YES];[self performSelector:@selector(hideStatusBar) withObject:nil afterDelay:0.5];}- (BOOL)prefersStatusBarHidden{if ([self hidetatusBar]) {BOOL hide = (self.sourceType== UIImagePickerControllerSourceTypeCamera)? YES : NO;return hide;}return NO;}- (UIViewController *)childViewControllerForStatusBarHidden{if ([self hidetatusBar]) {return nil;}return [self.childViewControllers lastObject];}- (void)setHidetatusBar:(BOOL)hidetatusBar{objc_setAssociatedObject(self, (__bridge const void *)(@"hidetatusBar"), [NSNumber numberWithBool:hidetatusBar], OBJC_ASSOCIATION_RETAIN_NONATOMIC);}-(BOOL)hidetatusBar{NSNumber *hidetatusBar = objc_getAssociatedObject(self, (__bridge const void *)(@"hidetatusBar"));return [hidetatusBar boolValue];}- (void)hideStatusBar{[self setHidetatusBar:YES];[self prefersStatusBarHidden];if ([self respondsToSelector:@selector(setNeedsStatusBarAppearanceUpdate)]) {[self performSelector:@selector(setNeedsStatusBarAppearanceUpdate)];}}- (void)showStatusBar{[self setHidetatusBar:NO];[self prefersStatusBarHidden];if ([self respondsToSelector:@selector(setNeedsStatusBarAppearanceUpdate)]) {[self performSelector:@selector(setNeedsStatusBarAppearanceUpdate)];}}@end最后需要配置info.plist设置“View controller-based status bar appearance”为NO
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