IOS状态栏的显示隐藏

首先在info.plist中添加View controller-based status bar appearance

如果把View controller-based status bar appearance设置为NO

[UIApplication sharedApplication].statusBarHidden = hide;

如果View controller-based status bar appearance是YES

- (void)HideStatusBar:(BOOL)hide {
    mbStatusBarHidden = hide;
    if (IOS_7) {//>=IOS7
        if ([self respondsToSelector:@selector(setNeedsStatusBarAppearanceUpdate)]) {
            [self prefersStatusBarHidden];
            [self performSelector:@selector(setNeedsStatusBarAppearanceUpdate)];
        }
    }
    else {
        [UIApplication sharedApplication].statusBarHidden = hide;
    }
}

- (BOOL)prefersStatusBarHidden
{
    return mbStatusBarHidden;
}