IOS custom checkbox

// Author: smilelance

// From: http://blog.csdn.net/smilelance

# Import <uikit/uikit. h>

@ Interface pdecheckbox: uibutton

{

Bool ischecked;

}

-(ID) initwithcenter :( cgpoint) center;

-(Bool) ischecked;

-(Void) setcheckstate :( bool) checked;

-(Void) switchcheckstate;

@ End

# Import "pdecheckbox. H"

# Define image_checked @ "checkbox_gray_sel.png"

# Define image_unchecked @ "checkbox_gray.png"

@ Implementation pdecheckbox

-(ID) initwithframe :( cgrect) Frame

{

Self = [Super
Initwithframe: frame];

If (Self ){

// Initialization code

}

Return self;

}

-(ID) initwithcenter :( cgpoint) Center

{

// Uiimage * imgchecked = [uiimage imagenamed: image_checked];

Uiimage * imgunchecked = [uiimageimagenamed: image_unchecked];

Cgsize size = imgunchecked. size;

Cgrect frame = cgrectmake (center. x-size.width/1, Center. y-size.height/2,

Size. Width, size. Height );

Self = [Super
Initwithframe: frame];

If (Self ){

// Initialization code

[Selfsetimage: imgunchecked
Forstate: uicontrolstatenormal];

Ischecked = no;

[Selfaddtarget: selfaction: @ selector (switchcheckstate) forcontrolevents: uicontroleventtouchupinside];

}

Return self;

}

-(Bool) ischecked

{

Returnischecked;

}

-(Void) switchcheckstate

{

[Selfsetcheckstate :! Ischecked];

}

-(Void) setcheckstate :( bool) checked

{

If (checked! = Ischecked ){

Ischecked = checked;

If (ischecked ){

[Selfsetimage: [uiimageimagenamed: image_checked] forstate: uicontrolstatenormal];

} Else {

[Selfsetimage: [uiimageimagenamed: image_unchecked] forstate: uicontrolstatenormal];

}

}

}

@ End