在我們平常的開發(fā)過程中、在自定義View里面觸發(fā)點(diǎn)擊方法，實(shí)現(xiàn)Push到另一個(gè)ViewController里面一般通過代理、block、通知等方法

這里介紹一種直接在View里面實(shí)現(xiàn)跳轉(zhuǎn)比較方便的一種方法：

#import <UIKit/UIKit.h>
@interface CustomView : UIView
@end

#import "CustomView.h"
#import "ViewPushViewController.h"
@implementation CustomView

//初始化
- (instancetype)init{
if (self = [super init]) {
    [self createUI];
}
return self;
}

//懶加載
- (UIViewController *)viewController {
for (UIView *next = [self superview]; next; next = next.superview) {
    UIResponder *nextResponder = [next nextResponder];
    if ([nextResponder isKindOfClass:[UIViewController class]]) {
        return (UIViewController *)nextResponder;
    }
}
return nil;
}

//創(chuàng)建UI
- (void)createUI{
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
[self addSubview:btn];
btn.frame = CGRectMake(100, 100, 100, 50);
btn.center = CGPointMake([UIScreen mainScreen].bounds.size.width/2, [UIScreen mainScreen].bounds.size.height/2);
[btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[btn setTitle:@"點(diǎn)擊跳轉(zhuǎn)" forState:UIControlStateNormal];
btn.backgroundColor = [UIColor yellowColor];
[btn addTarget:self action:@selector(pushToNextController) forControlEvents:UIControlEventTouchUpInside];
}
- (void)pushToNextController{
//需要跳轉(zhuǎn)的ViewController
ViewPushViewController *vc = [[ViewPushViewController alloc]init] ;
vc.hidesBottomBarWhenPushed = YES ;
//通過找到的控制器進(jìn)行跳轉(zhuǎn)
[[self viewController].navigationController pushViewController:vc animated:YES] ;
}
@end

思路：

觸發(fā)點(diǎn)擊事件的控件都是需要加載到控制器所在的view上的，找到控件的事件的響應(yīng)者鏈就可以找到視圖所加載在的Controller，通過這個(gè)controller找到navigationController進(jìn)行跳轉(zhuǎn)。

主要方法：

OC

- (UIViewController *)viewController {
for (UIView *next = [self superview]; next; next = next.superview) {
    UIResponder *nextResponder = [next nextResponder];
    if ([nextResponder isKindOfClass:[UIViewController class]]) {
        return (UIViewController *)nextResponder;
    }
}
return nil;
}

Swift

public func viewController()->UIViewController? {
        var nextResponder: UIResponder? = self
        repeat {
            nextResponder = nextResponder?.next
            if let viewController = nextResponder as? UIViewController {
                return viewController
            }
        } while nextResponder != nil
        return nil
    }

以上方法最好寫在分類里面、方便調(diào)用
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