Discover React Native for creating rich, cross-platform mobile apps with reusable components. Gain insights into UI components, styling, navigation, Hooks, state, and database management.

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reactNative

React Native is a well-known mobile application development framework that allows developers to create rich, cross-platform mobile application UI using reusable components. It's ideal for building mobile applications and supports multi-platform reusable code, pre-built components, and a rich UI. Most well-known social media platforms, such as Facebook and Instagram, have been built using React Native. 

In this course, you’ll start with a brief introduction to React Native and then cover various built-in components of React Native categorized into different categories such as basic, user interface, user interaction, and list view components. Next, you’ll learn about concepts such as application styling, navigation, Hooks, state management, and database management. You’ll find interactive quizzes and challenges throughout the course to test your understanding.

By the end of this course, you’ll be able to develop mobile applications and kickstart your journey as a React Native developer.

Getting Started with Mobile App Development with React Native

React Native offers the `PermissionsAndroid` API in Android applications to protect users' privacy. This API can be used to ask users for permission before accessing sensitive data such as location, contacts, messages, etc. It can also be used to ask permission to access specific system functionalities such as the camera and voice recorder.

# Types of permissions

Android permissions can be divided into the following two categories:

* **Normal permissions**: Normal permissions are those that the application does not need to ask for from the user. Android always allows normal permissions by default. These are some of the normal permissions that do not require a runtime request:
    - `BLUETOOTH`

    - `BLUETOOTH_ADMIN`

    - `ACCESS_NETWORK_STATE`

    - `ACCESS_WIFI_STATE`

    - `CHANGE_WIFI_STATE`

    - `CHANGE_NETWORK_STATE`


- **Dangerous permissions**: Dangerous permissions are those that the application must ask for from the user. Android does not allow dangerous permissions by default. 
These are some of the dangerous permissions that must be asked for:

     - `CAMERA`

     - `READ_CONTACTS`

     - `RECORD_AUDIO`

     - `READ_SMS`

     - `ANSWER_PHONE_CALLS`

     - `ACCESS_BACKGROUND_LOCATION`


# Usage

To implement and use the `PermissionsAndroid` API, we first have to import it from the `react-native` library.


Learn how to ask for permission from the user to access sensitive data using the PermissionsAndroid API.

Before We Begin

Introduction to React Native

Basic Components

User Interface and User Interaction

List View

Android Components and APIs

Miscellaneous Components and APIs

Application Styling

Navigation

Hooks

State Management

Database Management

Appendix

PermissionsAndroid

Types of permissions