UIView独占响应事件

#import "RootViewController.h"

@interface RootViewController ()

@property (nonatomic, strong) UIButton   *button1;
@property (nonatomic, strong) UIButton   *button2;

@end

@implementation RootViewController

- (void)viewDidLoad
{
    [super viewDidLoad];

    _button1 = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
    [self.view addSubview:_button1];
    _button1.backgroundColor = [UIColor redColor];
    [_button1 addTarget:self
                 action:@selector(buttonsEvent:)
       forControlEvents:UIControlEventTouchUpInside];
    
    _button1.exclusiveTouch = YES;

    _button2 = [[UIButton alloc] initWithFrame:CGRectMake(0, 100, 100, 100)];
    [self.view addSubview:_button2];
    _button2.backgroundColor = [UIColor greenColor];
    [_button2 addTarget:self
                 action:@selector(buttonsEvent:)
       forControlEvents:UIControlEventTouchUpInside];
    
    
    _button2.exclusiveTouch = YES;
}

- (void)buttonsEvent:(id)sender
{
    if (_button1 == sender)
    {
        NSLog(@"1");
    }
    
    if (_button2 == sender)
    {
        NSLog(@"2");
    }
}

@end