React Native - Environment Setup - There are a couple of things you need to install to set up the environment for React Native. We will use OSX as our building platform. Structure of the project. The source is located in the src folder. Everything in this folder will be built automatically when running the app with yarn start. The build process compiles all stuff from the src folder and puts it into the app folder, so after the build has finished, your app folder contains the full, runnable application. Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Latest LTS Version: 14.16.0 (includes npm 6.14.11) Download the Node.js source code or a pre-built installer for your platform, and start developing today. Update - 25th Feb 2021. Npm 7.5.6 or greater now works with angular-cli versions 9.1.15, 10.2.3, 11.2.2, 12.0.0-next.2 or greater (within each major version) as per this comment from the Angular team.
- React Native Tutorial
- Core Concepts
Yarn Linux
- Components and APIs
- React Native Useful Resources
- Selected Reading
There are a couple of things you need to install to set up the environment for React Native. We will use OSX as our building platform.
| Sr.No. | Software | Description |
|---|---|---|
| 1 | NodeJS and NPM | You can follow our NodeJS Environment Setup tutorial to install NodeJS. |
Step 1: Install create-react-native-app
After installing NodeJS and NPM successfully in your system you can proceed with installation of create-react-native-app (globally as shown below).
Step 2: Create project
Browse through required folder and create a new react native project as shown below.
After executing the above command, a folder with specifies name is created with the following contents.
Step 3: NodeJS Python Jdk8
Make sure you have Python NodeJS and jdk8 installed in your system if not, install them. In addition to these it is recommended to install latest version of yarn to avoid certain issues.
Step 4: Install React Native CLI
You can install react native command line interface on npm, using the install -g react-native-cli command as shown below.
Step 5: Start react native
To verify the installation browse through the project folder and try starting the project using the start command.
If everything went well you will get a QR code as shown below.
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As instructed, one way to run react native apps on your android devise is to using expo. Install expo client in your android devise and scan the above obtained QR code.
Step 6: Eject the project
If you want to run android emulator using android studio, come out of the current command line by pressing ctrl+c.
Then, execute run eject command as
This prompts you options to eject, select the first one using arrows and press enter.
Then, you should suggest the name of the app on home screen and project name of the Android studio and Xcode projects.
Though your project ejected successfully, you may get an error as −
Ignore this error and run react native for android using the following command −
But, before that you need to install android studio.
Step 7: Installing Android Studio
Visit the web page https://developer.android.com/studio/ and download android studio.
After downloading the installation file of it, double click on it and proceed with the installation.
Step 8: Configuring AVD Manager
To configure the AVD Manager click on the respective icon in the menu bar.
Step 9: Configuring AVD Manager
Choose a device definition, Nexus 5X is suggestable.
Click on the Next button you will see a System Image window. Select the x86 Images tab. Apple latest operating system comparison.
Then, select Marshmallow and click on next.
Finally, click on the Finish button to finish the AVD configuration.
After configuring your virtual device click on the play button under the Actions column to start your android emulator.
Step 10: Running android
Open command prompt, browse through your project folder and, execute the react-native run-android command.
Then, your app execution begins in another prompt you can see its status.
In your android emulator you can see the execution of the default app as −
Step 11: local.properties
Open the android folder in your project folder SampleReactNative/android (in this case). Create a file with named local.properties and add the following path in it.
here, replace Tutorialspoint with your user name.
Step 12: Hot Reloading
And to build application modify the App.js and the changes will be automatically updated on the android emulator.
If not, click on the android emulator press ctrl+m then, select Enable Hot Reloading option.
Welcome to Apache Zeppelin! On this page are instructions to help you get started.
Requirements
Apache Zeppelin officially supports and is tested on the following environments:
| Name | Value |
|---|---|
| OpenJDK or Oracle JDK | 1.8 (151+) (set JAVA_HOME) |
| OS | Mac OSX Ubuntu 16.X |
Downloading Binary Package
Two binary packages are available on the download page. Only difference between these two binaries is interpreters are included in the package file.
- all interpreter package: unpack it in a directory of your choice and you're ready to go.
- net-install interpreter package: unpack and follow install additional interpreters to install interpreters. If you're unsure, just run
./bin/install-interpreter.sh --alland install all interpreters.
Building Zeppelin from source
Follow the instructions How to Build, If you want to build from source instead of using binary package.
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Starting Apache Zeppelin
Starting Apache Zeppelin from the Command Line
On all unix like platforms:
After Zeppelin has started successfully, go to http://localhost:8080 with your web browser.
Stopping Zeppelin
Start Apache Zeppelin with a service manager
Note : The below description was written based on Ubuntu.
Apache Zeppelin can be auto-started as a service with an init script, using a service manager like upstart.
This is an example upstart script saved as /etc/init/zeppelin.confThis allows the service to be managed with commands such as
Other service managers could use a similar approach with the upstart argument passed to the zeppelin-daemon.sh script.
Yarn Linux Mint
zeppelin.conf
Next Steps
Congratulations, you have successfully installed Apache Zeppelin! Here are few steps you might find useful:
New to Apache Zeppelin..
- For an in-depth overview, head to Explore Zeppelin UI.
- And then, try run Tutorial Notebook in your Zeppelin.
- And see how to change configurations like port number, etc.
Spark, Python, SQL, and more
- Spark support in Zeppelin, to know more about deep integration with Apache Spark.
- SQL support in Zeppelin for SQL support
- Python support in Zeppelin, for Matplotlib, Pandas, Conda/Docker integration.
Multi-user support ..
- Check Multi-user support