📖 This project was created to display my tech knowledge in native Android development with Kotlin. More techincal info below.
Notes App is a native Android App made with Kotlin. The app is capable of doing CRUD(Create, Read, Update and Delete) operations thanks to Room (SQLite Database); displaying the data (LiveData) in Note cards, inside a Recycler View; maintaining the model and view separation with MVVM and utilizing Clean Architecture and SOLID patterns to make the code clean, reusable and decoupled.
Download the APK directly from this repo. You can check out here how to install an APK to your Android device.
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Minimum SDK Level 25
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- Live Data: Used for observe data from a reactive point of view. Allowing the data used in UI to be updated automatically.
- Lifecycle: Observe the Android lifecycle and manipulate the states from the UI after the lifecycle change.
- ViewModel: Used to retrieve the data from the Model layer and update the data from View.
- ViewBinding: Manages the XML layout views in Kotlin through a class.
- Recycler View: Show a more efficient way of displaying a list of Views in the screen, recycling the views for better performance.
- Room: The persistency library that offers a abstraction layer on top of SQLite to allow for a more robust database access.
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Architecture
- MVVM (Model-View-ViewModel) + Clean Architecture: The first item is used to separate the logic of the app's UI, helping with testability and organization; also, the Clean Architecture helps to build the app's main system with well designed layers, who work with independency, facilitating with the scalability and maintenance.
- Repository pattern: This pattern help with the data layer´s abstraction
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Libraries
NotesApp was built using MVVM, Clean Architecture and the Repository pattern. Following Google´s official recomendation
List all the created notes stored in the database. The list was created with CardView, Constraint Layout and Recycler View.
Users can add as many notes as they want, specifying the text and the preferred color. This activity was created with Constraint Layout and Radio Group
Users also have the possibility to edit their notes, changing the text and color. Also, there´s a possibility to delete the note. Activity created with TopBar, Icon Buttons, Radio Group.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
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More Information
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This policy is effective as of Sep 2023.