The Adapter design pattern is a structural pattern that allows two or more incompatible classes to work together by creating an interface that all of the classes can understand.
The Adapter design pattern can be implemented by defining a protocol that defines the desired interface, and then creating a wrapper class that conforms to that protocol and contains an instance of the original class. The wrapper class can then implement the methods defined in the protocol and delegate the calls to the corresponding methods of the original class, converting the parameters as needed.
One example of the Adapter design pattern could be an app that allows a user to log in using multiple social media accounts, such as Facebook, Twitter, and Google. Each social media platform has its own SDK for logging in, and the interfaces for each SDK are different.
To implement this, you could create a protocol called `LoginProtocol` that defines the methods required for logging in, such as login() and logout().
The Adapter design pattern can be implemented by defining a protocol that defines the desired interface, and then creating a wrapper class that conforms to that protocol and contains an instance of the original class. The wrapper class can then implement the methods defined in the protocol and delegate the calls to the corresponding methods of the original class, converting the parameters as needed.
One example of the Adapter design pattern could be an app that allows a user to log in using multiple social media accounts, such as Facebook, Twitter, and Google. Each social media platform has its own SDK for logging in, and the interfaces for each SDK are different.
To implement this, you could create a protocol called `LoginProtocol` that defines the methods required for logging in, such as login() and logout().
Then, you could create separate adapter classes for each social media platform that conform to the `LoginProtocol` and adapt the SDK's specific interface to the protocol's methods. For example, the `FacebookLoginAdapter` class would have a property of type `FBSDKLoginManager` and would implement the login() and logout() methods using the SDK's corresponding methods.
Next, let's implement the `TwitterLoginAdapter` class:
Finally, we'll implement the `GoogleLoginAdapter` class:
Finally, in the main view controller of the app, you could use the appropriate adapter class depending on the user's choice of social media account to log in with. This way, the rest of the app only needs to interact with the `LoginProtocol` and is not concerned with the specific implementation details of each social media platform's SDK.
In this example, the `FacebookLoginAdapter`, `TwitterLoginAdapter`, and `GoogleLoginAdapter` classes all conform to the `LoginProtocol` and provide a specific implementation for logging in and logging out using the respective social media platform's SDK. The `MainViewController` uses the appropriate adapter based on user's choice and the rest of the app can call the login and logout methods on the `LoginProtocol` without knowing the implementation details of the specific adapter being used.
Note that this is just an example, it might not work as is because it uses SDKs that you need to import and configure to work properly.
Note that this is just an example, it might not work as is because it uses SDKs that you need to import and configure to work properly.
