The document discusses the importance of design patterns in iOS app development, categorizing them into three main types: creational, behavioral, and structural patterns. It outlines prominent patterns such as the observer, memento, facade, adapter, and decorator patterns, highlighting their use cases and benefits. The conclusion emphasizes the significance of these patterns in organizing features and facilitating feature implementation in iOS applications.

1. 9 Best Design Patterns in iOS to Develop
Powerful iPhone Apps
17 June
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2. What is iOS Patterns Design?
● There are two types of solutions: Creational patterns create
objects for you without much effort. Structural patterns define
how classes should be organized and work together. They’re
more complex than creational patterns because they can affect
multiple classes or many parts of your program at once.
● Now you know about design patterns. Let’s now discuss the
different types of software design patterns. If you are looking
for a design for an ios app, make sure you Hire IPhone
Application Development Company that has a great
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3. How Many Design Patterns Are There?
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4. There are mainly three types of Ios design patterns:-
● Creational Design Patterns
a. Abstract Factory
b. Builder
c. Singleton
d. Factory Method Pattern
● Behavioral Design Patterns
a. Observer Pattern
b. Memento Pattern
c . Command Pattern
● Structural Design Patterns
a. Facade
b. Decorator
c. Adapter Pattern
d . Bridge
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5. Top 3 Behavioral Design Patterns for iOS App
Development
1. Observer Design Pattern
● The observer behavioral design pattern is a type of event
notification system. In particular, it’s used in situations where one
or more observers register their interest in a particular event and
then get informed automatically when that event occurs. Consider
a chat room application.
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6. 2. Memento Design Pattern
● The Memento design pattern lets an object record state
information and later allows you to recreate that state.
Memento performs tasks such as the Archiving, UserDefaults,
and NSCoding protocol to use CoreData. However, the privacy
of the data is not violated. For example, if you have a card
game, one memento might be each player’s hand of cards.
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7. 3. Template Method
● It is one of those you didn’t know you had until you needed it.
The Template Method allows you to define both an interface
and a body method, which acts as an intermediary between
your client code and any existing subclasses.
● This allows subclasses of an algorithm to define its phases
without changing the overall structure. Each part of the
algorithm can be broken down using the template approach.
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8. Top 3 Structural Design Pattern in iOS App
Development
1. Facade Design Pattern
● When an app’s primary function isn’t connected to its visual
design, it makes sense to use Facade.
● The Facade design pattern is an iOS UI pattern with a simple
interface. It can be equipped with classes, frameworks, or library
systems. This design pattern is part of the GoF (Gang of Four)
classified under structural patterns.
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9. 2. Adapter Design Pattern
● The Adapter transforms an object’s interface and expects it to
adapt to another object. An adapter wraps an object by
covering it with another object.
● Wrapping objects that handle adapter meters can be done.
These meters are used for data and foot conversion.
● The Adapter pattern lets you present a consistent interface for
objects that implement different interfaces.
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10. 3. Decorator Design Pattern
● The decorator design pattern is used when you want to extend
or alter the functionality of an object at runtime. This design
pattern is useful for changing several behaviors at once
instead of changing each behavior individually.
● This pattern is also known as the Wrapper design. You will
need to use the Decorator design pattern to activate the
behavior of your target object. It also includes its
characteristics.
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11. Conclusion
● They help organize how different features will work together, and
they also provide a tool for us iPhone app developers to
implement new features into our apps without making mistakes.
● We are a prominent IPhone App Development Company that
provides top-of-the-line iPhone app design services. We should
always consider implementing them when developing applications
for both Apple’s iOS platform and other platforms such as Android.
● It was one of many reasons why Apple implemented Swift into its
new programming language for developing native mobile apps.
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12. Web & Mobile App Development Company
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