Every React Native component like View, Text, Image etc… accepts a style prop which is an object of CSS rules. The only difference between CSS rules and CSS object used in React Native is key in CSS object has CSS rules in camelCase, for example, CSS rule background-colour will become backgroundColour in React Native. There are few restrictions over values of some CSS rules. But still, available CSS rules are enough to style a mobile app UI beautifully. React Native supports CSS flexbox to build UI layouts. We style our mobile screen like below snippet: Stylesheet object is provided by React native library which has the method “create”. It takes an argument of type object and this object is the collection of CSS rules. As you can see in the above example, font-size CSS property in the web becomes font size in React native and flex-direction becomes flexDirection. I hope you got the idea about styling in React native application development. You can find the complete code on https://gist.github.com/PavanKu/98f92103af84faaf540aa348cf1a1126
Why do you need to install watchman software when setting up a development environment for React Native on MacOS?
Introduction: Watchman is an open-source project developed by Facebook that monitors files and tracks changes. Functionality: It can trigger actions based on file changes. Hot Reloading in React Native: Automation: When a developer makes changes in a React Native project file, Watchman detects the changes and triggers an automatic build, reflecting updates without manual intervention. Developer Benefits: The hot reloading feature makes React Native a developer-friendly framework, accelerating the development process. Setup: Installation of Watchman is included in the React Native environment setup instructions.
How do you start the React Native app development?
Starting a project from scratch is always a little bit harder that is why there are some tooling available which we can use to bootstrap a React Native project.
Smart Task Prioritization
Help users prioritize their tasks more effectively using algorithms. Implementing Smart Task Prioritization Identify key factors, such as deadlines, importance, and user history. Assign scores to tasks based on their criteria. Show users their tasks in order of priority. Step 2: Integration with Fitness Tracking Encourage users to maintain a balance between productivity and wellness by integrating with fitness apps. Implementing Fitness Tracking Integration Consider APIs from Fitbit, Apple Health, or Google Fit. Implement OAuth for users to connect their fitness accounts. Show users their fitness data alongside task completion metrics. Allow users to set productivity goals that incorporate physical activity (e.g., “Complete 5 tasks and walk 10,000 steps”). Step 3: Dynamic Task Templates Allow users to create and reuse templates for common tasks or projects. Implementing Dynamic Task Templates Create a UI for users to define a task template (e.g., checklists, due dates). Store templates in the database or AsyncStorage. Enable users to select a template when creating a new task. Step 4: Video Tutorials and Onboarding Enhance user experience by providing tutorials and a smooth onboarding process. Implementing Video Tutorials Design onboarding screens that introduce the app’s features. Use react-native-video to embed tutorial videos within the app. Create interactive tutorials that guide users through the app’s functionalities. Step 5: Push Notifications for Deadlines Remind users of approaching deadlines to help them stay on track. Implementing Push Notifications Use libraries like @react-native-firebase/messaging or react-native-push-notification. Allow users to set notifications for task deadlines. Let users customize how they receive notifications (e.g., sound, vibration).
What is state in the React component?
State is another way apart from props by which we can modify a React component. React component’s state value changes in the life cycle of component, unlike props. We should not directly change state value of react component. React framework gives the setState method by which state of a component should be changed. Above code is an implementation of a counter component. This component has a state count whose value is changed by clicking on the plus (+) and minus (-) button. As the state count of this component is changing the number displayed on UI is also changing. Whenever we create any component in React, first we divide the screen in the component then decide what state a component should have. The beauty of this component is that it is an independent component and can be used anywhere in the application. That is how we make several fully functional component in React to build the complete application.
What are props in React Component?
Props are parameters which are used to customise a component at the time of creation and on re-render. Props are like arguments passed to a React component. For example, Image is a very basic component provided by React Native library to display an image. It accepts a prop called source which is used to control what image it shows. By passing different values of props, one component can show different UI and different functionality. So we can say that props help use and reuse the same component at different places. Props are set by the parent component and remain fixed for an entire lifecycle of a component.
What is component driven development and what are the benefits of using component driven development?
Long time back, web developer realises that there are few elements which are frequently used in web development like drop down and different type of button. The developer started making CSS frameworks which provide already developed components. Bootstrap was first very popular CSS framework which helped web developer to build user experience very quickly. React also follows the same approach in web development. Component driven development is a methodology where we break the complete UI design into several small reusable components and develop them independently. Then the complete UI is built by composing these small components. This methodology helps us write UI code in a modular way. UI development will be faster as we will be reusing components at multiple places. Less code also results in less effort in maintaining the code and also less number of bugs. So we can say that component driven development was already there in web development but React JS made it very popular in the developer community. New frameworks like Angular4+ are also following the same methodology to develop the web application.
Customizable Reminders
Allow users to personalize their reminders with various sounds and repeat intervals. Implementing Customizable Reminders Provide users with a list of notification sounds they can choose from. Let users select how often they want reminders to repeat. When creating a task, allow users to schedule the reminder with the selected sound and repeat option. Step 2: Offline Functionality Enable users to manage their tasks even when they’re offline. Implementing Offline Functionality Store tasks in AsyncStorage for offline access. When the user reconnects to the internet, sync local changes with the server. Inform users when they are offline and any changes will be saved locally. Step 3: Integrate Third-Party Services Connect your app with popular productivity tools to enhance functionality. Implementing Third-Party Integrations Identify APIs for services like Slack, Trello, or Asana. Implement OAuth for user authentication with third-party services. Allow users to import/export tasks between your app and third-party services. Step 4: Social Features Create a social component where users can connect and interact with friends. Implementing Social Features Allow users to send and receive friend requests. Let users share specific tasks with friends. Enable users to view friends’ progress on shared tasks or goals. Step 5: Personalized Dashboard Create a customizable dashboard where users can prioritize tasks. Implementing a Personalized Dashboard Allow users to reorder tasks on their dashboard. Enable users to add or remove widgets, such as upcoming deadlines, progress bars, or priority tasks. Allow users to change the layout or color scheme of their dashboard.
What is JSX?
JSX is a system used for embedding XML in Javascript. You can say that JSX is a templating language for writing HTML/XML tags with Javascript. With the help of JSX, HTML/XML can be written inside Javascript file. JSX enables conditional rendering of React components. React includes building step which converts JSX into Javascript code which is ultimately executed by browser in case of a web app or react Native in case of React Native. JSX is added to improve the developer experience. ReactJS provides few APIs which make the HTML structure in a browser. Those APIs were a little cumbersome to frequently used. That is why React JS introduced JSX and added a tooling step to convert JSX into platform understandable code. With the help of JSX, we can execute javascript to build HTML tags very easily. Here is an example of a JSX code: Above JSX code is creating one View component which contains two TouchableOpacity component as its child element. We are accessing Javascript variable in Text component with curly brace.
How mobile app development with React Native is different than web app development with ReactJS
I’m listing down set of categories that shows how mobile app development is different than web app development using react — Origin and Architecture: Both developed and open-sourced by Facebook Inc., React Native follows ReactJS’s basic architecture and promotes a component-based approach to building mobile screens. They share similar lifecycle methods. UI Components: Platform and Browser Features: GitHub Projects: ReactJS and React Native are separate open-source projects on GitHub. Feature Implementation: New component architecture features are first implemented in ReactJS and later added to React Native. Development Tools: Both frameworks have different tools for getting started with development. Static Type Checking: The above list of differentiation make clear how react and react native are works and different.