触摸事件处理

//- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
//{
//    return [super hitTest:point withEvent:event];
//}

/**
 告诉系统:触摸点point是否在这个UI控件身上
 如果该对象返回NO,那么不会调用该对象的上面的方法hitTest方法
 */
- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
{
    // 初始化矩形框
    [self setupSpecialRects];

    // 根据触摸点获得被触摸的特殊字符串
    LZSpecial *special = [self touchingSpecialWithPoint:point];

    if (special) {
        return YES;
    } else {
        return NO;
    }
}

// 触摸事件的处理
// 1.判断触摸点在谁身上: 调用所有UI控件的- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
// 2.pointInside返回YES的控件就是触摸点所在的UI控件
// 3.由触摸点所在的UI控件选出处理事件的UI控件: 调用- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event



// 把Main.storyboard里面的view,换成greenView
// LZGreenView.h
#import <UIKit/UIKit.h>

@interface LZGreenView : UIView

@end

// LZGreenView.m
#import "LZGreenView.h"
#import "LZRedView.h"

@interface LZGreenView()
@property (nonatomic, weak) UIButton *button;
@property (nonatomic, weak) LZRedView *redView;
@end

@implementation LZGreenView

- (void)awakeFromNib
{
    self.backgroundColor = [UIColor greenColor];

//    UIButton *button = [UIButton buttonWithType:UIButtonTypeContactAdd];
//    button.center = CGPointMake(100, 100);
//    [button addTarget:self action:@selector(click) forControlEvents:UIControlEventTouchUpInside];
//    [self addSubview:button];
//    self.button = button;

    LZRedView *redView = [[LZRedView alloc] init];
    redView.frame = CGRectMake(100, 100, 100, 100);
    [self addSubview:redView];
    self.redView = redView;
}

//- (void)click
//{
//    NSLog(@"点击了按钮");
//}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    NSLog(@"HMGreenView----touchesBegan");
}

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
    return self.redView;
}
@end


// LZRedView.h
#import <UIKit/UIKit.h>

@interface LZRedView : UIView

@end

// LZRedView.m
#import "LZRedView.h"

@implementation LZRedView

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor = [UIColor redColor];
    }
    return self;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    NSLog(@"LZRedView****----touchesBegan");
}
@end