All that remains is to implement a mechanism for calling the getCurrentTime() method and displaying the result to the user. As is now customary, Android Studio will have created a template activity_main.xml file for the activity containing only a TextView. Load this file into the Layout Editor tool and, using Design mode, select the TextView component and change the ID to myTextView. Add a Button view beneath the TextView and change the text on the button to read “Show Time”, extracting the text to a string resource named show_time. On completion of these changes, the layout should resemble that illustrated in Figure 68-1. If any constraints are missing, click on the Infer Constraints button in the Layout Editor toolbar.
Complete the user interface design by selecting the Button and configuring the onClick property to call a method named showTime.
Finally, edit the code in the MainActivity.kt file to implement the showTime...