CustomNVToolBarVC.m

//
//  CustomNVToolBarVC.m
//  customToolBar
//

#import "CustomNVToolBarVC.h"
#import <objc/runtime.h>

@interface UIToolbar (Override)
@property (strong, nonnull, nonatomic) UIView *targetView;
@end

@implementation UIToolbar (Override)

- (void)setTargetView:(UIView *)targetView
{
	objc_setAssociatedObject(self, "targetView", targetView, OBJC_ASSOCIATION_RETAIN);
}

- (UIView *)targetView
{
	return objc_getAssociatedObject(self, "targetView");
}

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
	CGPoint pointForTargetView = [self.targetView convertPoint:point fromView:self];
	if (CGRectContainsPoint(self.targetView.bounds, pointForTargetView)) {
		return [self.targetView hitTest:pointForTargetView withEvent:event];
	}
	return [super hitTest:point withEvent:event];
}
@end

@interface CustomNVToolBarVC ()

@property UIView * subView ;
@property UIButton * subButton;
- (void) pressed;

@end

@implementation CustomNVToolBarVC

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    
    self.subView =  [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
    self.subView.backgroundColor = [UIColor blueColor];
    
    self.subButton = [[UIButton alloc]initWithFrame:CGRectMake(0 ,0 ,50 ,50)];
    self.subButton.backgroundColor = [UIColor greenColor];
    [self.subButton setTitle:@"Press" forState:UIControlStateNormal];
    
    [self.subButton addTarget:self action:@selector(pressed) forControlEvents:UIControlEventTouchUpInside];
    
    [self.subView addSubview:self.subButton];
    [self.toolbar addSubview:self.subView];
	self.toolbar.targetView = self.subView;
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

-(void)pressed {
    NSLog(@"pressed");
    
    [UIView animateWithDuration:0.5 animations:^{
        self.subView.frame = CGRectMake(0, -100, 100, 100);
    }];

}



/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end