Mohsin Ali’s Post

Explain dependency configs for Android projects 1. implementation - This configuration is used to declare dependencies that are required for compiling the production source code of your app or library module. - Dependencies in this configuration are exposed to consumers of your library module (transitive dependencies). 2. api - Similar to implementation, but dependencies in this configuration are also exposed to consumers of your library module with their transitive dependencies. - Use this configuration when you want to expose a dependency and its transitive dependencies to other modules that depend on your module. 3. compileOnly - Declares dependencies that are required for compiling the production source code but should not be included in the packaged output (e.g., APK). - Useful for dependencies that are provided by the runtime environment, like the Android framework itself. 4. runtimeOnly - Declares dependencies that are not required for compiling the production source code but are required for running the packaged output. - Useful for dependencies that are dynamically loaded at runtime, like a logging framework. 5. testImplementation - Declares dependencies that are required for compiling and running local unit tests (tests in the test source set). 6. androidTestImplementation - Declares dependencies that are required for compiling and running instrumented tests (tests in the androidTest source set) on an Android device or emulator. 7. debugImplementation - Declares dependencies that are only required for the debug build type of your app or library module. - Useful for including debugging tools or libraries that should not be included in release builds. 8. releaseImplementation - Declares dependencies that are only required for the release build type of your app or library module. - Useful for including libraries or tools specific to release builds, like obfuscation or optimization tools. #gradle #android #androiddev #androidstudio #kotlin

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What is the MVP Pattern? - The Model doesn't know about the View or the Presenter. - The View has a reference to the Presenter, but not the Model. - The Presenter has references to both the View and the Model. This involves separating the user interface presentation layer (View) from the business logic of the application (Model) using a third layer, called the Presenter. As a result, the application code becomes more readable and easier to maintain, and it also enables easier testing of the individual elements of the application. Benefits? - Cleaner, more maintainable code: Clear separation of concerns makes code easier to understand and modify. - Improved testability: You can test the Model and Presenter independently of the UI framework. - Flexibility: The UI can be easily swapped out without affecting the business logic. In the example, the model represents the layer responsible for data access (e.g., database or network), the view is the user interface, and the presenter plays the role of intermediary between the model and the view. In this way, the business logic is in the presenter, and the view focuses solely on data presentation. I hope this post is informative! Follow/Connect me at Mohsin Ali for more informative content. #androiddev #MVP #architecture #kotlin #android

What is the MVI Pattern? The MVI (Model-View-Intent) pattern is a popular architecture pattern for Android development that promotes clean code and a clear separation of concerns. In MVI, there is a unidirectional data flow between the View, Intent, and Model. This means that the View sends user interactions to the Intent, the Intent processes the interactions and updates the Model, and the Model provides an updated state to the View. Here are the benefits of using the MVI pattern: - Improved Testability: Because the data flow is unidirectional, it is easier to test each component of the MVI architecture in isolation. - Reduced Boilerplate Code: MVI can help to reduce boilerplate code by providing a clear separation of concerns between the View, Intent, and Model. - Easier to Reason About: The unidirectional data flow of MVI makes it easier to reason about how changes in the UI will affect the application state. Here is an example of how the MVI pattern can be implemented for a login screen: I hope this post is informative! Follow/Connect me at Mohsin Ali for more informative content. #androiddev #MVI #architecture #kotlin #android

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Describe Adapter pattern The Adapter pattern in object-oriented programming is a design approach that allows the combination of different interfaces for different classes. This makes it possible to use existing classes, even if their interfaces are not compatible with other classes in the project. The Adapter pattern allows the "fitting" of one class's interface to another class's interface, allowing both classes to cooperate with each other. A common example of using the Adapter on Android? RecyclerView.Adapter, which fits a data set to the way it is to be displayed. Connect/Follow me at Mohsin Ali for updates! #designpattern #softwareengineer #android #kotlin #adapterpattern #selflearningjourney

Describe Observer pattern The Observer pattern is a design pattern that lets objects, called observers, stay informed about the state of another object, called the subject. Whenever the subject's state changes, it notifies all its registered observers, who can then react accordingly. Benefits of Observer Pattern: - Loose Coupling: Observers don't need to know the internal workings of the subject. They simply care about being notified of changes. - Flexibility: You can easily add or remove observers without affecting the subject itself. - Scalability: The pattern can handle a large number of observers efficiently. Imagine a news app... You're scrolling through your favorite news app, eagerly waiting for updates on that breaking story. Suddenly, a notification pops up with the latest headline! This notification is like an "observer" in the Observer pattern, and the news app itself is the "subject." Let's Code! Here's how the Observer pattern can be implemented in Kotlin: #designpattern #kotlin #android #androiddev #kotlindev #softwareengineer