Skip to main content

How to navigate between activities in Kotlin Android

How to navigate between activities in Kotlin Android.

Here's a step-by-step tutorial on how to navigate between activities in Kotlin for Android:

Step 1: Create a new Android project​

  • Open Android Studio and click on "Start a new Android Studio project".
  • Choose a project template and click "Next".
  • Enter the project name, package name, and other details, then click "Finish".
  • Android Studio will generate the project structure for you.

Step 2: Create the first activity​

  • Right-click on the package name in the Project view, and select "New -> Activity -> Empty Activity".
  • Enter the activity name and layout name, then click "Finish".
  • Android Studio will create the new activity file and the associated layout file.

Step 3: Define the layout for the first activity​

  • Open the layout file for the first activity (activity_main.xml by default).
  • Design the layout using XML tags and attributes, such as TextView, Button, etc.
  • Save the layout file.

Step 4: Create the second activity​

  • Right-click on the package name in the Project view, and select "New -> Activity -> Empty Activity".
  • Enter the activity name and layout name, then click "Finish".
  • Android Studio will create the new activity file and the associated layout file.

Step 5: Define the layout for the second activity​

  • Open the layout file for the second activity (second_activity.xml by default).
  • Design the layout using XML tags and attributes, similar to the first activity.
  • Save the layout file.

Step 6: Add a button to navigate to the second activity​

  • Open the layout file for the first activity (activity_main.xml).
  • Add a Button element to the layout, and provide it with an id attribute (e.g., android:id="@+id/button").
  • Save the layout file.

Step 7: Handle the button click event​

  • Open the Kotlin file for the first activity (MainActivity.kt).
  • Inside the onCreate() method, find the button view using findViewById() and assign it to a variable.
  • Set a click listener on the button, and inside the onClick() method, create an Intent to start the second activity using startActivity().
  • Save the Kotlin file.

Step 8: Receive the intent in the second activity​

  • Open the Kotlin file for the second activity (SecondActivity.kt).
  • Inside the onCreate() method, use the intent property to retrieve any data passed from the first activity.
  • You can access the data using intent.getStringExtra(), intent.getIntExtra(), etc.
  • Save the Kotlin file.

Step 9: Start the app and test the navigation​

  • Run the app on an emulator or a physical device.
  • When the first activity appears, click the button to navigate to the second activity.
  • The second activity should open, and any data passed from the first activity should be displayed or processed accordingly.

That's it! You've successfully implemented navigation between activities in Kotlin for Android.