iOS 事件穿透

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];

btn.frame = CGRectMake(80, 100, 100, 50);

btn.backgroundColor = [UIColor redColor];

[btn setTitle:@"click me" forState:UIControlStateNormal];

[btn addTarget:self action:@selector(click) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:btn];

MyView1 *view = [[MyView1 alloc] initWithTestFrame:CGRectMake(100, 100, 200, 200)];

[self.view addSubview:view];

}

// ---------------------------------------------自定义VIEW

#import "MyView1.h"

@implementation MyView1

/*

// Only override drawRect: if you perform custom drawing.

// An empty implementation adversely affects performance during animation.

- (void)drawRect:(CGRect)rect {

// Drawing code

}

*/

UIButton *btn;

-(id)initWithTestFrame:(CGRect) frame

{

self = [super initWithFrame:frame];

if(self)

{

self.backgroundColor = [UIColor blueColor];

[self drawView];

//        self.userInteractionEnabled = NO;

}

return self;

}

-(void) drawView

{

btn = [UIButton buttonWithType:UIButtonTypeCustom];

btn.frame = CGRectMake(0, 0, 50, 30);

btn.backgroundColor = [UIColor blackColor];

[btn setTitle:@"btn" forState:UIControlStateNormal];

[btn addTarget:self action:@selector(click) forControlEvents:UIControlEventTouchUpInside];

[self addSubview:btn];

}

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

{

CGRect rect = btn.frame;

BOOL containsPoint = CGRectContainsPoint(rect, point);

if(containsPoint)

{

self.userInteractionEnabled = YES;

}

else

{

self.userInteractionEnabled = NO;

}

UIView *touchedView = [super hitTest:point withEvent:event];

return touchedView;

}

-(void)click

{

NSLog(@"black...");

}

@end