代码改变世界

iOS 事件穿透

2015-10-15 17:44  xiangjune  阅读(365)  评论(0编辑  收藏  举报

 

- (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