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Lecture: Android Kotlin Architectural Components for Location Services and Google Maps API

Fused Location Provider API:

https://coda.io/@peter-sigurdson/fusedlocationprovider-api⁠

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Lab A: Google Maps API App:

https://coda.io/@peter-sigurdson/w23-april-4-android-maps-lab-a-r-1⁠

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Creating a new Project and Getting a Google Maps API Key Lab:

https://coda.io/@peter-sigurdson/create-a-new-project-in-the-google-cloud-console-pre-req-for-goo⁠

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Using Google Maps SDK for Android with Kotlin

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https://coda.io/@peter-sigurdson/lecture-android-kotlin-architectural-components-for-location-ser⁠

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April 4 Class Plan:

Android App Location Services and Google Maps API

Understand the classes and architecture.

Google Maps API Key at the Google Console.

Lab: 1 Google Maps and Location sheet

Welcome to this lecture on utilizing Android Kotlin architectural components to build robust apps leveraging Location Services and the Google Maps API. We will explore how these components work in harmony to create efficient, location-aware applications.

### Objectives:

- Understand Android's architectural components

- Learn how to integrate Location Services and Google Maps API

- Best practices for building location-aware apps in Kotlin

## Overview of Android Architectural Components Architectural components are part of Android Jetpack Composer, designed to make it easier to create robust, testable, and maintainable apps.

### LiveData and ViewModel - **LiveData**: An observable data holder that is lifecycle-aware. It ensures your app reacts to data changes in a lifecycle-conscious manner. - **ViewModel**: Manages UI-related data in a lifecycle-conscious way. It survives configuration changes such as screen rotations.

### Room Database - **Room**: An abstraction layer over SQLite. It provides a robust database access mechanism while harnessing the full power of SQLite.

### Navigation Component - **Navigation**: Manages app navigation and ensures a consistent user experience.

## Integrating Location Services Location-based features are essential in many apps. Android provides powerful APIs for location services.

### Accessing Device Location via the GPS sensor - Use `FusedLocationProviderClient` for location updates. - Ensure to check and request location permissions.

### LiveData with Location - Combine LiveData with location data to update the UI reactively.

## Implementing Google Maps Google Maps API offers extensive features to integrate maps into your apps.

### Setting Up Google Maps - Add the Google Maps dependency. - Obtain and configure the API key in the `AndroidManifest.xml`.

### Map Customization - Customize maps with markers, camera movements, and user interactions. - Use `MapFragment` or `MapView` in the layout.

## Best Practices: Employ best practices for performance and user experience.

### Responsiveness and Lifecycle Awareness - Ensure UI updates are responsive and lifecycle-aware using ViewModel and LiveData.

### Data Persistence - Use Room for storing any persistent location data.

### Navigation and User Experience - Utilize the Navigation component for seamless user navigation between different screens.

## Conclusion Leveraging architectural components with Location Services and Google Maps API enables you to build powerful, efficient, and user-friendly location-aware apps in Kotlin.

### Further Reading - [Android Developers Guide](https://developer.android.com/guide) - [Google Maps Platform Documentation](https://developers.google.com/maps/documentation)

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This lecture provides an overview of integrating location services and Google Maps in an Android app using Kotlin, emphasizing best practices and efficient use of Android's architectural components.

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