3 Combining Object Tree and Composite

The Professional Description Composition pattern is a structural design pattern that you can use to compose objects into a tree-like structure and use them as if they were independent objects. Real-World Analogies Most countries' militaries are managed hierarchically. Each unit consists of several divisions, which are made up of brigades, whi ...

Posted by Phoenix~Fire on Thu, 05 May 2022 21:48:30 +0300

Flutter native plug-in - Android

Flutter native plug-in 1, What is the Flutter plug-in 1. Four engineering types of Flutter a,Flutter Application The new APP, the standard shuttle APP project, includes the standard Dart layer and Native platform layer b,Flutter Module Mix into existing Android / iOS projects c,Flutter Plugin The fluent platform plug-in project includes ...

Posted by AshleyByrom on Thu, 05 May 2022 15:21:25 +0300

A practice of Tencent TBS browsing service integration

This sharing stems from the recent actual development work. Project requirements are Embed WebView in the native Android application and place the Web page used to support the audio and video live broadcasting service; In addition, the content preview of common document formats such as Word, Excel, PowerPoint and PDF shall be provided. Af ...

Posted by wudiemperor on Thu, 05 May 2022 01:11:53 +0300

[design mode] agent mode

Proxy mode: provide an avatar for an object to control access to the object. That is, the target object is accessed through the proxy object The advantage of this is that on the basis of the realization of the target object, additional function operations can be enhanced, that is, the function of the target object can be extended. The prox ...

Posted by shiny_spoon on Tue, 03 May 2022 22:03:53 +0300

Responsibility chain mode common code kill if else

Responsibility chain mode common code kill if... else Today I want to discuss with you how to kill if else. People who have worked may have a deep understanding: there is nothing that if else can't handle. If so, nest it one more layer. Most people are engaged in business development, and if else cannot be avoided, but how to make the logic ...

Posted by eshban on Tue, 03 May 2022 16:30:39 +0300

Summary of common design patterns

This article is my study notes, mainly Learn self fashion Silicon Valley design pattern video Shang Silicon Valley design mode Factory mode mainly comes from Snail college design mode 1 observer mode The meteorological station designs an open API to push data to the website. When updating meteorological data, it needs to * * inform (push) ...

Posted by n00byboy on Mon, 02 May 2022 23:07:35 +0300

[design mode] Chapter 10: appearance mode, the joy of driving a small broken car

The joy of driving a small broken car I don't know if you've ever driven or sat in such a "small broken car" and he can run, but the internal entertainment or some auxiliary equipment can be almost ignored. Although the conditions are harder, we still have to create happiness for ourselves. In summer, it's too hot to install an air ...

Posted by JovanLo on Mon, 02 May 2022 06:19:49 +0300

Xiaodi classroom - learning notes: do you know structural design mode, decorator + agent mode? Stay and talk

Vision: "make programming no longer difficult to learn and make technology and life more interesting" For more architecture courses, please visit xdclass net   catalogue Episode 1 design mode of adding wings to the tiger - Introduction to decorator design mode Episode 2 meet Lao Wang's refitting collocation - play with the desig ...

Posted by Russia on Sun, 01 May 2022 23:20:46 +0300

Learning notes [23 design patterns - Section 14: Command Pattern]

Command Pattern sketch Command mode: in software design, we often need to send a request to the European Association object, but we don't know who the receiver of the request is or what the requested operation is. We just need to specify the specific receiver of the request when the program is running. At this time, we can use the command mo ...

Posted by ludwig on Sun, 01 May 2022 08:40:53 +0300

Design Mode - Combination Mode (Did you understand the double eleven combination discount)

Combination mode The Composite Pattern, also known as the Part Whole Pattern, is used to treat a group of similar objects as a single object. The composition pattern composes objects according to a tree structure, which is used to represent parts and whole hierarchies. This type of design pattern is a structural pattern that creates a tr ...

Posted by Gaoshan on Sun, 01 May 2022 03:45:42 +0300