Question

In this exercise you will modify an existed view by adding a new attribute. Extend the TextView class. Add an attribute longDate to show a date in long format. Use SimpleDateFormat and Calendar classes to format the long date. This exercise is similar to ModifiedViewExample from lecture 5/week05 covered in the class.

Answer 1

To add a 'longDate' attribute to a TextView, create a subclass of TextView, initialize Calendar and SimpleDateFormat with a long date pattern, and update the text accordingly to reflect the formatted date.

Step-by-step explanation:

To modify an existing TextView class and add a new attribute longDate to show a date in long format, you would need to extend the TextView class in Android and utilize the SimpleDateFormat and Calendar classes to format the date. Here is a simplified example of how you might accomplish this:

public class LongDateTextView extends TextView {

private Calendar calendar;
private SimpleDateFormat simpleDateFormat;

public LongDateTextView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}

private void init() {
calendar = Calendar.getInstance();
simpleDateFormat = new SimpleDateFormat("EEEE, MMMM d, yyyy", Locale.getDefault());
updateText();
}

private void updateText() {
String longDate = simpleDateFormat.format(calendar.getTime());
setText(longDate);
}

// Add methods to set and get the 'longDate' attribute if required
}

In this code, we initialize a Calendar instance and a SimpleDateFormat using a pattern that represents the long date format. The method updateText is used to format the date and set it as the text of our custom TextView. Remember to include the necessary import statements for the classes used.