Package for Button

1. Through the encapsulation of the button, thus reducing the amount of code, we do not need a large paragraph to create a button, as long as through the encapsulated button class can be created, here we use block to encapsulate.

(1) First create a class that inherits the Button class

(2) then define block

(3) Defining class methods

(4) Implementing a class method in. m

2. The specific code is as follows:

(1) in the. h file

#import <UIKit/UIKit.h>

@class Mgbutton;

typedef void (^block) (Mgbutton *button);

@interface Mgbutton:uibutton

+ (Mgbutton *) Buttonwithframe: (CGRect) frame type: (uibuttontype) type title: (NSString *) title Addblock: (Block) Tempblock;

@end

(2) Implementing a class method in a. m file

#import "MGButton.h"

@interface Mgbutton ()

Note: To write composite access to the block variable, be sure to use copy

@property (nonatomic,copy) block Myblock;

@end

@implementation Mgbutton

Generating a button object using block

+ (Mgbutton *) Buttonwithframe: (CGRect) frame type: (uibuttontype) type title: (NSString *) title Addblock: (Block) Tempblock {

Mgbutton *button = [Mgbutton buttonwithtype:type];

[Button Settitle:title Forstate:uicontrolstatenormal];

Button.frame = frame;

[Button Addtarget:button action: @selector (buttoncilcked:) forcontrolevents:uicontroleventtouchupinside];

Button.myblock = Tempblock;

return button;

}

Button's Click event

-(void) buttoncilcked: (Mgbutton *) button {

NSLog (@ "Here is the interior of the Buttoncilcked method");

Trigger button

Button.tag = 10;

Button.myblock (button);

}

@end

3. Create a button, you can introduce the Mgbutton header file, through the class method to create a button

The code is as follows:

UIButton *btn = [Mgbutton buttonwithframe:cgrectmake (0, 0, $) type:uibuttontypecustom title:@ "button" addblock:^ ( Mgbutton *button) {

NSLog (@ "button click event");

}];

[Self.view ADDSUBVIEW:BTN];

4. Other forms of the button can be customized according to the needs of your project, the implementation of the Block method.

Package for Button