Create Grid using React native

Create Grid using React native

  1:18 PM    admin

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After fist post about react native I feel I'm getting familiar with react native, this framework quite easy to use, today I continue with another tutorial about create a simple grid card in react native. Let see the our final result first:

                         

 

Let's start...

Analytics
Assump our data has below structure: We have an array of rows and each row has an array of columns, then I decided to use FlatList to display object in cloumns array in horizontal direction, you can imaging like below image.

Gridcard design

Card Item

each card has a logo and a text. I'm using the Icon from lib react-native-vector-icons To have a flatlist in horizontal we use horizontal={true}property, and to make sure the width of flatlist is same as screen with we use contentContainerStyle={{ flexGrow: 1, justifyContent: 'center' }}

Grid

Now the implementation quite easy now, just need to loop to rows in our data and display FlatList.

Let's enjoy...

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My first React native app - Simple weather app

My first React native app - Simple weather app

  4:08 AM    admin

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I'm learning the react native and today I'll write a post about my first app - Simple weather app (from a to z) to apply what I have learned.

source https://github.com/jbohnvn/reactnative

I'm a window and android boy so this tutorial only run with android, so if you guys can run it on iOS please comment, then other people can get it as an example as well.

Requirements:
- Familiar with JavaScript and React
- Nodejs, Android SDK installed on your local machine
- VSCode is using (but you can use any other IDE or editor)
- Having Weather API - OpenWeatherMap account for get API KEY
...let's start

Creating a new project

Use the react native command line interface to generate a new React Native project

npm install -g react-native-cli
react-native init AwesomeProject
cd AwesomeProject
react-native run-android

Make sure you installed android build version defined in SimpleWeather/android/build.gradle

 ext {
        buildToolsVersion = "27.0.3"
        minSdkVersion = 16
        compileSdkVersion = 27
        targetSdkVersion = 26
        supportLibVersion = "27.1.1"
    }

Really eager to write more code now...

The Prototype
In this step, we develop our first screen, which will be a simple loading screen.
In your App.js, define a local state:


Check out the weather response

Request:

http://api.openweathermap.org/data/2.5/weather?lat=37.4219983333333&lon=-122.0840000&APPID=<<REPLACE_BY_YOUR_API_KEY>>&units=metric

We will get lat and lon by piece of code in App.js


Response: 
We will get below information to display
- temperature: json.main.temp,
- weatherCondition: json.weather[0].main,
- position : { country : json.sys.country, name : json.name }
Create Weather component 

Very nice, now we have weather information, we will create a Weather component to display them:

We put the information corresponse to TextViewes and creating a dynamid backgroud base on weather condition:  <View style={[styles.weatherContainer,{ backgroundColor: weatherConditions[weather].color }]}
Integrate with App component
HOPE YOU GUY ENJOY THIS TUTORIAL!!!

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