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December 26, 2022 05:06 am GMT
Original Link: https://dev.to/dhruvjoshi9/how-to-make-a-clock-android-app-in-android-studio-5724
How to make a clock Android app in Android Studio?
To create a clock app in Android Studio, you can follow these steps:
- Open Android Studio and create a new project with an Empty Activity.
- In the main activity layout file (activity_main.xml), add a TextView element to display the current time.
- In the MainActivity.java file, you can use the Calendar class to get the current time and display it in the TextView. You can do this in the onCreate() method, like this:
Calendar calendar = Calendar.getInstance();SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm:ss", Locale.getDefault());String currentTime = simpleDateFormat.format(calendar.getTime());TextView textView = findViewById(R.id.text_view);textView.setText(currentTime);
- To update the time in the TextView every second, you can use a Handler and a Runnable to run a piece of code every second.
final TextView textView = findViewById(R.id.text_view);final Handler handler = new Handler();final Runnable runnable = new Runnable() { @Override public void run() { Calendar calendar = Calendar.getInstance(); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm:ss", Locale.getDefault()); String currentTime = simpleDateFormat.format(calendar.getTime()); textView.setText(currentTime); handler.postDelayed(this, 1000); }};handler.post(runnable);
- To display the date in addition to the time, you can add another TextView element and update it in the same way as the time TextView.
- To test your app, click the Run button in the toolbar. Choose a device or emulator to run the app on and click "OK."
I hope this helps! Let me know if you have any other questions. Reach me if you have ideas and want to develop apps.
Original Link: https://dev.to/dhruvjoshi9/how-to-make-a-clock-android-app-in-android-studio-5724
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