02 GUI Interactions

Read about Android's String Resources

The user sees 3 GUI elements; a Button, EditText, and TextView {Not covered in tutorial, see teacher if you have questions.}

• The user can enter their name into the EditText, when the button is pressed the name is placed into the TextView

• Remember to use "android:hint" instead of "android:text" in your EditText. Example: "android:hint="@string/enter_your_name"

• Optional:

  • Replace button with a TextChangedListener() to update TextView as text is entered. 

String Resources

• Create a string-array in the strings.xml resource file (messages sent to the user)

  • Optional:  Use arguments in your resource file

• Create another Button and TextView

• Every time the button is pressed, display a new string message in the TextView (cycling back to the beginning when complete)

  • Optional:  Use RadioGroup and RadioButtons to determine direction of the cycling

• Set text with string resource using placeholders

  • Formatting Strings