彻底解决iOS7状态栏隐藏的问题(以及setStatusBarHidden:YES不起作用问题)

@interface IFImagePickerControllerEx :UIImagePickerController

- (void)viewDidDisappear:(BOOL)animated;

- (void)viewDidAppear:(BOOL)animated;

- (void)viewWillDisappear:(BOOL)animated;

@end

@implementation IFImagePickerControllerE x

- (void)viewDidAppear:(BOOL)animated

{

    [superviewDidAppear:animated];

    [[UIApplicationsharedApplication]setStatusBarStyle:UIStatusBarStyleDefault];

}

- (void)viewWillDisappear:(BOOL)animated

{

    [superviewWillDisappear:animated];

    [[UIApplicationsharedApplication] setStatusBarHidden:YES withAnimation:NO];

}

- (void)viewDidDisappear:(BOOL)animated

{

    [superviewDidDisappear:animated];

    [[UIApplicationsharedApplication] setStatusBarHidden:YES withAnimation:NO];

}