![]() I hate it when a tutorial goes halfway and never shows how the code would be in a real application so let’s try to refactor and split up our code to make it “production-ready”.įirst, let’s simplify the theme context provider into a component so that we don’t clutter up our app’s top-level component. In this component, we use the useContext hook to get the current theme value and setTheme function to display the state of the dropdown correctly and set the theme when the user selects a new theme.Īnd that is it, you now have a dark theme and should be able to add an arbitrary amount of themes into your app. ![]() Within the theme-setter component, I wanted to use a dropdown in this case but a toggle button should also work. Id like to implement switching between dark/light theme dynamically with Ant design v4. Then, at the top level of your app, you must wrap it with ThemeContext.Provider which you would pass in the current state of your theme and the setTheme function - this is the value that is returned in the component that uses useContext. It works surprisingly similar to what I was describing before so let takes a look at how you would set it up in your app.Īs you can see from this GitHub gist, you first create a context using React.createContext passing in the initial theme settings - you don’t need to but it is good practice. Context to the rescueĬontext is the React way of allowing for a piece of state to be used anywhere in the component tree without having to pass it down as props. This line of thinking, however, would have been close to the correct solution. And change the theme by triggering the changeTheme() with the right value (dark or white) We then see. The problem with this approach is that you have to remember that each time you use this hook inside the component, it is a separate instance of the hook that is created which has no memory of each other. I need to switch the dark mode to the opposite color. Then I would try to use the hook at the top level and the theme-setting component. This means that it would be quite a hassle to use useState at the top component (because the theme div must live at the top component) and passing down the current theme value and the set theme function to the theme-setter component.Ī mistake that I would have made if I was newer at React is that I would have tried to write my own hook called useTheme and have it return the value and theme setting function. The component that you are using to do the theme switching might be deeply nested within your application’s component tree. This theme switching method might seem simple at first but there is a caveat. We need to use a button that toggles our dark mode classes off and on and on so we can update the text appropriately. We also want to change the colour of our button in dark mode to reflect the dark mode theme. With SCSS, we can use variable names in our stylesheet. ![]() theme - to enable the theming throughout your entire application. We will be writing our very basic styles in SCSS it’s just cleaner. EventListener when mode/theme is changed window.matchMedia('(prefers-color-scheme: dark)').An important thing to note with this method before we go into the React code is that the Sass is being compiled down into. If I talk about the implementation part, I have used window.matchMedia to check for theme prefers-color-scheme. Makes it easier for anyone to use a device in a low-light environment.It improves visibility for users with low vision and those who are sensitive to bright light. Create A Dark/Light Mode Switch with CSS Variables webdevcssshowdev Giving your users a way to customise the interface to their preference is a huge win for user experience.Why it is important? Well there are few points that makes a website better when it has dark mode theme: Or we can also add a toggle functionality in websites to switch explicitly between light and dark themes. We can change this dark/light mode from Setting-> Display-> THEME in most of the devices. These two themes have some advantages and can be configured on mobile as well as on desktop. Remove line 12 background-color: 282c34 and line 19 color: white. First, we will remove the styles set in App.css. Now that we have the react app set up, we can start adding the dark mode. In Mac, we can set Dark or Light theme from General> As per the official documentation, carry out the following steps: This will launch the react app on localhost:3000 and it should look something like this.
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