The button click on iOS added to the cell is not valid! Enlarge button's Click area (Black Magic)

In general, the Click Effect is normal! What else did you do to it? The general attentive small partners have not encountered this situation, but it!

Of course, I'm class two! Here I mainly talk about two questions, solve problems and popularize magic.

I. Popularity issues (Button clicked on cell is not valid)

Custom a Cell,cell inside creat a button! And then debugging for half a day, what reaction is not!

The Enable of 1.button is set to Yes clickable.

1. I thought I set the interactive disable!

self.userinteractionenabled = YES;

2.button frame is out of bounds!

First you need to understand the carrier of the action's passing vector, the parent trying.

Two. Universal Magic (Enlarge button's Click area)

Don't say anything, directly on the code!!!

//

Uibutton+enlargeedge.h

Peter.zhang

//

Created by Peter.zhang on 8/28/14.

Copyright (c) Peter. All rights reserved.

//

#import <objc/runtime.h>

@interface UIButton (Enlargeedge)

-(void) Setenlargeedge: (cgfloat) size;

-(void) Setenlargeedgewithtop: (cgfloat) Top right: (cgfloat) Right bottom: (cgfloat) bottom left: (CGFloat) left;

@end

---------------

//

Uibutton+enlargeedge.h

Peter.zhang

//

Created by Peter.zhang on 8/28/14.

Copyright (c) Peter. All rights reserved.

//

#import "Uibutton+enlargeedge.h"

@implementation UIButton (Enlargeedge)

static char Topnamekey;

static char Rightnamekey;

static char Bottomnamekey;

static char Leftnamekey;

-(void) Setenlargeedge: (cgfloat) size

{

Objc_setassociatedobject (self, &topnamekey, [NSNumber numberwithfloat:size], objc_association_copy_nonatomic);

Objc_setassociatedobject (self, &rightnamekey, [NSNumber numberwithfloat:size], objc_association_copy_nonatomic );

Objc_setassociatedobject (self, &bottomnamekey, [NSNumber numberwithfloat:size], Objc_association_copy_ Nonatomic);

Objc_setassociatedobject (self, &leftnamekey, [NSNumber numberwithfloat:size], objc_association_copy_nonatomic) ;

}

-(void) Setenlargeedgewithtop: (cgfloat) Top right: (cgfloat) Right bottom: (cgfloat) bottom left: (cgfloat) left

{

Objc_setassociatedobject (self, &topnamekey, [NSNumber numberwithfloat:top], objc_association_copy_nonatomic);

Objc_setassociatedobject (self, &rightnamekey, [NSNumber numberwithfloat:right], Objc_association_copy_ Nonatomic);

Objc_setassociatedobject (self, &bottomnamekey, [NSNumber Numberwithfloat:bottom], Objc_association_copy_ Nonatomic);

Objc_setassociatedobject (self, &leftnamekey, [NSNumber Numberwithfloat:left], objc_association_copy_nonatomic) ;

}

-(CGRect) Enlargedrect

{

nsnumber* TopEdge = Objc_getassociatedobject (self, &topnamekey);

nsnumber* Rightedge = Objc_getassociatedobject (self, &rightnamekey);

nsnumber* Bottomedge = Objc_getassociatedobject (self, &bottomnamekey);

nsnumber* Leftedge = Objc_getassociatedobject (self, &leftnamekey);

if (TopEdge && rightedge && bottomedge && Leftedge)

{

Return CGRectMake (Self.bounds.origin.x-leftedge.floatvalue,

Self.bounds.origin.y-topedge.floatvalue,

Self.bounds.size.width + Leftedge.floatvalue + rightedge.floatvalue,

Self.bounds.size.height + topedge.floatvalue + bottomedge.floatvalue);

}

Else

{

return self.bounds;

}

}

-(uiview*) HitTest: (cgpoint) point withevent: (uievent*) event

{

CGRect rect = [self enlargedrect];

if (Cgrectequaltorect (rect, self.bounds))

{

return [Super Hittest:point withevent:event];

}

Return Cgrectcontainspoint (rect, point)? Self:nil;

}

@end

Drag into the project directly with the line!!!! A lot of advice

UIButton *btncancel = [UIButton buttonwithtype:uibuttontypecustom];

Btncancel.frame = CGRectMake (100, 100, 10, 10);

Btncancel.backgroundcolor = [Uicolor Redcolor];

[Btncancel setenlargeedgewithtop:10 right:10 bottom:10 left:10];

[Btncancel addtarget:self Action: @selector (Cancelbtnclick:) forcontrolevents:uicontroleventtouchupinside];

[TopView Addsubview:btncancel];

The button click on iOS added to the cell is not valid! Enlarge button's Click area (Black Magic)