IOS Hidden status bar

Battery status bar.

Method one (Code setting): Now iOS7 has been changed to transparent and does not occupy the screen height. The methods that are hidden and displayed are as follows: Under Uiviewcontroller subclasses, call: if ([Self respondstoselector: @selector (setneedsstatusbarappearanceupdate)]        ) {//IOS 7 [self prefersstatusbarhidden];    [Self performselector: @selector (setneedsstatusbarappearanceupdate)]; }-(BOOL) prefersstatusbarhidden{return yes;//is hidden as YES, shown as no} In view switching, such as Addsubview,present,pushin, also need to note and modify the status bar. Method Two (set in plist): First set Key:status bar is initially hidden Yes and set Key:view controller-based Status bar appearance to No Now hides the status bar globally
The

IOS Hidden status bar