The Weather App in Jetpack Compose using Kotlin | Part 1: Prerequisites | Android Knowledge
Summary
TLDRIn this tutorial series, the creator guides viewers through building a weather app using Jetpack Compose. They start by setting up prerequisites like adding dependencies for Retrofit and MVVM, defining colors, and obtaining an API key from OpenWeatherMap. The UI is kept simple, focusing on logic over design. The app will fetch and display weather data for a user-specified city, including temperature, humidity, and a description, using the OpenWeatherMap API. The series is divided into three parts: prerequisites, Retrofit setup, and UI design with Jetpack Compose.
Takeaways
- 🌐 The video is about creating a weather app using Jetpack Compose.
- 📱 The previous series focused on creating a contacts app with Room Database and MVVM.
- 📈 The new series will teach about Retrofit and API integration.
- 🎨 The UI is kept minimal, emphasizing logic over design.
- 🌡 The demo shows a weather app displaying city name, temperature, humidity, and description.
- 🔍 The app retrieves data from the OpenWeatherMap API.
- 🛠️ The tutorial is divided into three parts: prerequisites, Retrofit setup, and UI design with Jetpack Compose.
- 🧩 The first video covers the prerequisites for the project.
- 🎨 The second video will focus on setting up Retrofit.
- 📱 The third video will cover designing the UI using Jetpack Compose.
- 🔑 An API key from OpenWeatherMap is required for accessing the weather data.
Q & A
What is the main focus of the new series on the channel?
-The main focus of the new series is to create a weather app using Jetpack Compose.
What was the app created in the previous series?
-In the previous series, a contacts app was created where they learned about Room Database and MVVM.
What new concepts will be covered in the weather app series?
-The series will cover Retrofit and API usage within the context of Jetpack Compose.
What does the UI of the weather app look like?
-The UI is minimal, focusing on displaying the city name, temperature, humidity, and a description in cards.
How many attributes does the weather app display for each city?
-The weather app displays four attributes: city name, temperature, humidity, and a description.
Which API will be used to retrieve weather data?
-The Open Weather Map API will be used to retrieve weather data for the app.
What are the steps to get started with the weather app project?
-The steps include opening Android Studio, creating a new project, naming it 'The Weather App', and setting up the prerequisites.
What are the prerequisites for the weather app project?
-The prerequisites include adding Retrofit and MVVM dependencies, defining colors, adding a background image, requesting internet permissions in the Android manifest, and obtaining an API key from Open Weather Map.
Why is an API key necessary for the weather app?
-An API key is necessary for exclusive access to the Open Weather Map API to retrieve current weather data.
How long does it take for the API key to activate after registration?
-The API key might take up to an hour to activate after registration.
What is the structure of the video series for creating the weather app?
-The video series is divided into three parts: the first covers prerequisites, the second covers Retrofit, and the third covers designing the UI in Jetpack Compose.
Outlines
🌤️ Welcome to the Weather App Series
The video introduces a new series where the focus will be on creating a weather app using Jetpack Compose. The presenter recaps the previous series on building a contacts app, which included learning about Room Database and MVVM architecture. This new series will cover using Retrofit and API calls. A demo of the app shows how the user can input a city name (e.g., Mumbai), check the weather, and receive information like temperature, humidity, and description fetched from an API. The presenter explains the use of OpenWeatherMap API and Retrofit, mentioning the minimal UI design focus for the project.
🔧 Project Setup and Prerequisites
The video continues by explaining the setup process in Android Studio. It suggests creating a new project, naming it 'Weather App', and details the division of the project into three videos. The first video covers prerequisites, the second focuses on using Retrofit, and the third covers UI design with Jetpack Compose. The prerequisites include adding dependencies for Retrofit and MVVM, configuring colors for the app, and adding a background image. The video also covers adding internet permissions in the Android manifest to access the API.
🔑 API Key Setup for OpenWeatherMap
The video explains the process of obtaining an API key from OpenWeatherMap to access weather data. It mentions that different types of APIs are available, such as current weather data and forecasts, with only the current weather data being free. The presenter walks through subscribing to the free package, creating an account, confirming email, and obtaining the API key. They emphasize that the key might take an hour to activate and stress the importance of keeping the key safe for use in the upcoming videos.
Mindmap
Keywords
💡Jetpack Compose
💡MVVM
💡Retrofit
💡API
💡OpenWeatherMap API
💡UI Design
💡Android Studio
💡Dependency
💡Internet Permission
💡API Key
💡Room Database
Highlights
Introduction to a new series on creating a weather app using Jetpack Compose.
Previous series focused on creating a contacts app and learning about Room Database and MVVM.
The new series will cover Retrofit and API integration.
A demo of the weather app is provided, showcasing a minimalist UI design.
The app allows users to input a city name and check the weather.
Four attributes are displayed: city name, temperature, humidity, and weather description.
Data for these attributes is retrieved from an API.
The OpenWeatherMap API will be used for fetching weather data.
A brief overview of how Retrofit works in the context of Jetpack Compose.
The project is divided into three parts: prerequisites, Retrofit integration, and UI design.
Instructions on adding required dependencies for Retrofit and MVVM in the build.gradle file.
Adding colors to the app for visual enhancement.
Adding a background image to the app for aesthetic appeal.
Instructions on adding internet permission in the AndroidManifest.xml file.
Explanation of the need for an API key to access the OpenWeatherMap API.
A guide on how to obtain a free API key from OpenWeatherMap.
Note on the API key activation time and the importance of keeping it safe.
Encouragement for viewers to subscribe to the channel for upcoming videos.
Transcripts
hey everyone welcome back to my channel
we will start with a new series where
we'll create a weather app in Jetpack
compose in the previous series of
Jetpack compos we created a contacts app
where we learned about room database and
mvvm and now in this series we will
learn about retrofit and API so let me
quickly give you a
demo this is how it look I have kept the
UI minimal because UI designing is not
my thing I only focus on logic and you
should do here we are supposed to write
in city name so I will write
Mumbai then click on the check weather
button and look we have four attributes
the city's name is Mumbai the
temperature is 27° C the humidity is 83%
and lastly a description as dzel
we will retrieve these four things from
the API and display them in cards simple
but which API so I'll be using open
weather map API see we have already seen
how retrofit works but this time we will
see how it works in jeted compos okay
now let's create it open Android Studio
create a new project choose an empty
activity name the project the weather
app
and click on
finish now the project is quite big so
obviously I have divided the videos into
three parts this is our first video
where we will cover prerequisite then
the second video we will cover Red Roof
it which is very important then the
third and the final video will cover
designing the UI in jetre compose got it
so let's start with the
prerequisite go to grle build as we will
be using retrofit and MVM so add the
required
dependency then click on syn
now and add then go to
Colors here we will add two colors blue
and dark blue so let me quickly add them
and then then to make the app look more
fancy I'll simply add a background image
in the
drawable and then next go to Android
manifest here as we are retrieving the
data from API so obviously we will
require the internet for that right and
I will give the internet
permission and then now the last thing
in prerequisite is to get an API key to
use an API we need an API key for
exclusive access so go to open weather
map API I'll mention the website link in
the description box here we have
different types of API such as current
weather data early forecast daily
forecast climate forecast and many more
most of them have price except for the
current weather data it's free to use so
we are going to use that one and click
on subscribe here you will see a pricing
chart I will go with a free package so
click on get API
key then register Yourself by creating a
new
account and then click on create account
then write your company name and purpose
confirm your email ID click on API
keys there is the default API key that
you can use in your project also the API
key might take an hour to activate now
keep your API key safe because in the
next video we will be using it so stay
tuned for that for now that is it for
the video if you're new to this channel
then please consider subscribing to my
channel Channel and I'll see you in the
next video
[Music]
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