MVVM android

This is very simaple idea to understand concept of android MVVM(Model View View Model) .

Transcript

1. MVVM Design Pattern Ronak Thakkar By :
2. Index - Introduction - Traditional approach - What is MVVM? - Model - View - ViewModel - Setup - Code sample
3. Introduction - According to wikipedia, Software Architecture refers to the high level structures of a software system, the discipline of creating such structures and dah dah and blah blah… we all know what is architecture!! - In simple words, having decided and implementing a specific code architecture or a design pattern is all about solving problems that we developers face from time to time. - Design patterns is set of guidelines not rules - Why MVVM?
4. What is MVVM?
5. Model - This holds the data of the application. - It cannot directly talk to the View. - Exposes streams of data relevant to the View - Generally, it’s recommended to expose the data to the ViewModel through Observables.
6. View - It represents the UI of the application devoid of any Application Logic. - It observes the ViewModel. - Also informs the ViewModel about the user’s actions
7. ViewModel - It acts as a link between the Model and the View. - It’s responsible for transforming the data from the Model. - It provides data streams to the View. - It also uses hooks or callbacks to update the View. It’ll ask for the data from the Model.
8. Set up - Androidx implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version" - Support Android implementation "android.arch.lifecycle:extensions:$lifecycle_version"
13. Any questions?
14. Thank you :)