Show Hide the side content view with UIButton click.

We need to display a help menu or content of book which scrolls up on the view and show new view to the user.

Declare a BOOL to check view is hidden or not.

In .h

BOOL _isContentVisible; 

UIView *_sideContentView;

-(IBAction)showHideContentView:(id)sender;




In .Xib


Connect the showHideContentView function to UIButton touchUpInside action.




In .m

-(void)showHideContentView:(id)sender

{

    //BOOL isContentVisible= CGRectIntersectsRect(self.view.bounds, _sideContentScrollView.frame); // you can check view visibility if its scrollview.

    [UIView animateWithDuration:1.0f

                          delay:0

                        options:UIViewAnimationOptionBeginFromCurrentState

                     animations:^{

                         //hide if visible else show

                         if (_isContentVisible) { // Hide

                             _isContentVisible = NO;

                             [_sideContentView setFrame:CGRectMake(-360 +40, 0, 360, 748)];// 40 pixels is button to be seen on the view. Set the frame according to your choice.

                         }

                         else { // Show

                             _isContentVisible = YES;

                             [_sideContentView setFrame:CGRectMake(0, 0, 360, 748)];

                         }

                     }

                     completion:^(BOOL finished) {

                         if (finished) {

                          // Do any custom stuff on completion.

                         }

                     }];

}