#import <UIKit/UIKit.h>

@interface RicNavigationBar : UINavigationBar

@property (nonatomic, assign) BOOL shouldExtendbackgroundColorToStatusBar;

@end

//
//  RicNavigationBar.m
//  Kuoke
//
//  Created by Rice on 2017/11/13.
//  Copyright © 2017年 Rice. All rights reserved.
//

#import "RicNavigationBar.h"
#import "UIView+Const.h"

@interface RicNavigationBar()
{
UIColor *bgColor;
}
@property (nonatomic, assign) CGFloat extendHeight;
@property (nonatomic, strong) UIView *backgroundView;

@end

@implementation RicNavigationBar

- (instancetype)initWithFrame:(CGRect)frame{
self = [super initWithFrame:frame];
if(self){
}
return self;
}

- (CGFloat)extendHeight{
return self.shouldExtendbackgroundColorToStatusBar ? 100:0;
}

- (void)setBackgroundColor:(UIColor *)backgroundColor{
bgColor = backgroundColor;
[self layoutIfNeeded];
[self setNeedsLayout];
}

- (UIColor *)backgroundColor{
return bgColor;
}

- (UIView *)backgroundView{
if(!_backgroundView){
CGFloat extend = [self extendHeight];
_backgroundView = [[UIView alloc] initWithFrame:CGRectMake(0, [UIView navigationBarHeight] - [UIView topHeight] - extend, CGRectGetWidth([UIScreen mainScreen].bounds), [UIView topHeight] + extend)];
_backgroundView.layer.zPosition = -10000;
[self addSubview:_backgroundView];
[self sendSubviewToBack:_backgroundView];
}
return _backgroundView;
}

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event{

UINavigationItem *lastItem = [self.items lastObject];
if(lastItem){
UIView *__block targetView = nil;
[lastItem.leftBarButtonItems enumerateObjectsUsingBlock:^(UIBarButtonItem * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
UIView *view = [self responsePoint:point view:[obj customView]];
targetView = view;
*stop = view != nil;
}];
BOOL willStop = targetView != nil;
if(!willStop){
[lastItem.rightBarButtonItems enumerateObjectsUsingBlock:^(UIBarButtonItem * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
UIView *view = [self responsePoint:point view:[obj customView]];
targetView = view;
*stop = view != nil;
}];
}
willStop = targetView != nil;
if(!willStop && lastItem.titleView){
targetView = [self responsePoint:point view:lastItem.titleView];
willStop = targetView != nil;
}
return targetView;
}else{
return [super hitTest:point withEvent:event];
}
}

- (UIView *)responsePoint:(CGPoint)point view:(UIView *)view{
if(!view){
return nil;
}
UIView *targetView = nil;
CGRect viewFrame = view.frame;
if(CGPointEqualToPoint(viewFrame.origin, CGPointZero)){
viewFrame = [view convertRect:view.frame toView:self];
}
CGFloat width = CGRectGetWidth(viewFrame);
CGFloat height = CGRectGetHeight(viewFrame);
CGFloat minDemension = MIN(width, height);
if(minDemension < 44){
if(width < 44){
viewFrame = CGRectMake(viewFrame.origin.x-22, viewFrame.origin.y, viewFrame.size.width+44, viewFrame.size.height);
}else{
viewFrame = CGRectMake(viewFrame.origin.x, viewFrame.origin.y-22, viewFrame.size.width, viewFrame.size.height+44);
}
}
if([view isKindOfClass:[UIButton class]] && CGRectContainsPoint(viewFrame, point)){
targetView = view;
}
return targetView;
}

- (UIView *)responsePoint:(CGPoint)point item:(UIBarButtonItem *)item{
UIView *view = [item customView];
return [self responsePoint:point view:view];
}

- (void)drawRect:(CGRect)rect {
// Drawing
UIColor *backImageColor = bgColor ? : [UIColor whiteColor];
self.backgroundView.backgroundColor = backImageColor;
}

@end

@interface RicBaseViewController ()
/**
补充视图，用来挡住navigationBar透明时造成下一个页面动画过渡的时候还显示上一个页面的title的问题
*/
@property (nonatomic, strong) UIView *makeupView;

@end
@implementation RicBaseViewController

- (void)viewDidLoad {
[super viewDidLoad];
self.edgesForExtendedLayout = UIRectEdgeNone;
self.navigationController.navigationBar.backgroundColor = [UIColor whiteColor];
[self.view addSubview:self.makeupView];
// Do any additional setup after loading the view.
}
@end

- (void)viewDidLoad {
[super viewDidLoad];
self.edgesForExtendedLayout  = UIRectEdgeTop;
self.shouldSynchnizedNavBarColorToMarkupView = YES;
self.navigationController.navigationBar.backgroundColor = [UIColor clearColor];
// Do any additional setup after loading the view.
}
@end

RicHomeViewController *homeVC = [[RicHomeViewController alloc] init];
RicNavigationController *navVC = [[RicNavigationController alloc] initWithNavigationBarClass:[RicNavigationBar class] toolbarClass:NULL];
[navVC setViewControllers:@[homeVC]];