The Art of Doing: Dive Into Android Development with Kotlin - Writing Our Main Activity Part 4

The video tutorial explains how to hide the keyboard in an Android app after a button click. It discusses the challenge of controlling a native Android OS feature from within an app and introduces the context class to access system services. The tutorial provides a detailed walkthrough of implementing a function to hide the keyboard using the input method manager. Finally, it demonstrates testing the function to ensure it works as expected, concluding with a successful implementation.

What issue does the narrator want to address in the app's current functionality?

• The app crashes frequently.

• The app does not display messages correctly.

• The keyboard remains visible after an update.

• The update button is not responsive.

What is the role of the context class in Android development?

• To manage app permissions.

• To interact with the Android operating system.

• To design the user interface.

• To store user data.

Which method is used to retrieve services like the input method service?

• fetchService

• getSystemService

• retrieveService

• getServiceMethod

What is the purpose of the input method manager in the app?

• To handle network requests.

• To control the visibility of the keyboard.

• To manage app updates.

• To manage user sessions.

How does the app specify which window to hide the keyboard from?

• By using the window name.

• By specifying the window ID.

• By using a window token.

• By selecting the window type.

Where is the hide keyboard function called in the app?

• At the start of the app.

• In the main activity's onCreate method.

• In the app's settings menu.

• At the end of the update message function.

What is demonstrated at the end of the video?

• The app's new user interface.

• The successful hiding of the keyboard.

• A new feature for managing user data.

• An error in the app's functionality.