iOS Development-Hide status bar (battery bar)

There are two types of situations:

1. Want to hide the status bar of a view, for example, from interface A, push to interface B, interface a originally displayed the status bar, but we need interface B does not display the status bar.

At this point, you can do this:

Implemented in B:

-(void) viewdidload{    [Super Viewdidload];        if ([Self respondstoselector: @selector (setneedsstatusbarappearanceupdate)])    {        //IOS 7        [self Prefersstatusbarhidden];        [Self performselector: @selector (Setneedsstatusbarappearanceupdate)];}    } -(BOOL) prefersstatusbarhidden{    return yes;//hidden as YES, shown as No}

Also, add the following in the Plist file:

Set Key:view controller-based status bar appearance Yes

2. This comparison simply hides the status bar from all views directly. is also relatively simple.

(set in plist):
First set Key:status bar is initially hidden Yes
Then set Key:view controller-based status bar appearance to No
You can implement the global hidden status bar.