Abstract Factory of IOS design mode

Design patterns are an essential knowledge of program promotion, and here's how iOS implements abstract factory design patterns. This article is a look at the OC programming of the Abstract factory this chapter after writing, if you do not understand the principle can look at the book.

TestView.h first create a view

  testview.h//  abstractfactory////  Created by du Jia Li on 11/10/14.//  Copyright (c) 2014 DuPont. All rights reserved.//#import <UIKit/UIKit.h> @interface testview:uiview@end

testview.m

  testview.m//  abstractfactory////  Created by du Jia Li on 11/10/14.//  Copyright (c) 2014 DuPont. All rights reserved.//#import ' TestView.h ' @implementation testview-(ID) initWithFrame: (cgrect) frame{    if (self = [ Super Initwithframe:frame]) {        Self.backgroundcolor = [Uicolor redcolor];            }    return self;} @end

Next, create two classes testfactory, testbrandingfactory whichTestfactory inherits Testbrandingfactory. The specific implementation is as follows:

TestBrandingFactory.h

  testbrandingfactory.h//  abstractfactory////  Created by du Jia Li on 11/10/14.//  Copyright (c) 2014 DuPont. All rights reserved.//#import <Foundation/Foundation.h> #import <UIKit/UIKit.h> @interface testbrandingfactory:nsobject+ (Testbrandingfactory *) factory;-(UIView *) Createtestview: (CGRect) frame; @end

Testbrandingfactory.m

  testbrandingfactory.m//  abstractfactory////  Created by du Jia Li on 11/10/14.//  Copyright (c) 2014 DuPont. All rights reserved.//#import "TestBrandingFactory.h" #import "TestFactory.h" @implementation testbrandingfactory+ ( Testbrandingfactory *) factory{    return [[Testfactory alloc] init];} -(UIView *) Createtestview: (cgrect) frame{    return nil;} @end

TestFactory.h

  testfactory.h//  abstractfactory////  Created by du Jia Li on 11/10/14.//  Copyright (c) 2014 DuPont. All rights reserved.//#import "TestBrandingFactory.h" @interface testfactory:testbrandingfactory@end

Testfactory.m

  testfactory.m//  abstractfactory////  Created by du Jia Li on 11/10/14.//  Copyright (c) 2014 DuPont. All rights reserved.//#import "TestFactory.h" #import "TestView.h" @implementation testfactory-(UIView *) Createtestview: (cgrect) frame{    return [[TestView alloc] initwithframe:frame];} @end

Finally post the implementation

Testbrandingfactory * tmp = [testbrandingfactory factory];    UIView *v = [tmp createtestview:cgrectmake (+, +, +)];    [Self.view Addsubview:v];

Abstract Factory of IOS design mode