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Qué es un patrón de diseño y qué tipos existen

10/32
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What is a design pattern?

Design patterns are proven solutions to common problems faced by software developers. They emerged when the famous group known as the "Gang of Four" realized that many challenges in software development were recurring. By implementing specific solutions to these problems, the group put together an essential book on design patterns.

What are the categories of design patterns?

Design patterns fall into three broad categories:

  1. Creation Patterns: These patterns improve the way class instances are created within software development. They focus on encapsulating and hiding the creation of classes so that developers can use them without exposing internal details. The most common patterns in Android are:

    • Singleton
    • Builder
    • Factory
  2. Structural Patterns: Their objective is to facilitate the structuring of projects, making software structures robust. They allow, when expanding a class, to have a solid base to develop new components. Common structural patterns include:

    • Adapter
    • Proxy
    • Facade (also known as "Facade")
  3. Behavioral Patterns: These patterns focus on decoupling and delegating responsibility for communication between classes, facilitating better interaction between them. The most used in Android are:

    • Observer, which is fundamental in libraries such as LiveData.
    • Command

Why are design patterns important in Android?

In Android development, design patterns are crucial for several reasons:

  • Standardization: They allow developers to follow a set of best practices, ensuring that code is clean, efficient and easy to understand.

  • Reusability: They facilitate the reuse of proven solutions, saving time and effort in the development of new functionality.

  • Maintainability: They help create code that is easier to maintain and scale over time, which is essential in an environment as dynamic as mobile development.

Practical tips for implementing design patterns

  • Understand the problem: Before choosing a pattern, make sure you fully understand the problem to be solved.

  • Follow examples: Review how other developers have applied patterns in similar projects and learn from their implementations.

  • Prototyping: Before introducing a pattern in a large project, test its implementation in a controlled environment to make sure it meets your needs.

  • Document your code: Explain why a certain pattern has been implemented and how, to facilitate maintenance and future developments.

As you advance in your development skills, these patterns will become essential tools that will allow you to approach the challenges of software development in a more structured and efficient way. Don't stop here, keep exploring and perfecting your mastery of the art of programming!

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Patrones de diseño Creacionales nos ayudan a delegar las instancias de nuestras clase, el mismo encapsula el conocimiento de las clases y oculta como se crean y se instancia.
-Singleton
-Builder
-Factory
Patrones Estructurales nos ayudan a tener una base solida de estructura en nuestro código.
-Adapter
-Proxy
-Facade
Patrones de comportamiento nos indica como es la comunicación entre objetos
-Observer
-Command

PATRONES DE DISEÑO
Son plantillas para soluciones a problemas comunes en el desarrollo de software que se pueden usar en diferentes contextos.
Nos dan soluciones fáciles a problemas complejos sin importar el lenguaje que estemos usando.

Les comparto mis notas de la clase 😄

esta página ayuda mucho a entender más https://refactoring.guru/es/design-patterns

Los patrones de dise;o son una solucion a problemas que se repite

Patrones de diseño Creacionales nos ayudan a delegar las instancias de nuestras clase, el mismo encapsula el conocimiento de las clases y oculta como se crean y se instancia.
-Singleton
-Builder
-Factory
Patrones Estructurales nos ayudan a tener una base solida de estructura en nuestro código.
-Adapter
-Proxy
-Facade
Patrones de comportamiento nos indica como es la comunicación entre objetos
-Observer
-Command

magic of the 90's
Un patron de diseño es una estrategia mayormente aceptada para solucionar problemas comunes en el desarrollo de software. Problemas que tienen que ver con la creación, estructura y comportamiento de nuestro proyecto.

Deberían poner la fecha de publicación del curso en la descripción de este. Es una pésima practica la de Platzi de ocultar deliberadamente este dato. Obviamente cuesta más saber que tan obsoleto está el curso. En este caso, este curso esta atrasadísimo en temas conceptuales actuales.

Un patrón de diseño es una solución a problemas comunes. Los patrones de diseño surgieron a partir de un grupo de chicos ‘Gang of four’ que notaron los problemas al momento de desarrollar software.

Porfin llegamos a ver que es un patrón de diseño, muy buena la clase.