Graphical User Interface Basics

Graphical User Interface Basics

The native graphical user interface elements are some of the easiest to
learn of the features that Python for S60 offers. We cover them here at the
beginning of the book, to give you a smooth start in learning PyS60.
We explain the graphical user interface (UI) elements using small
exercises. Each exercise includes instructions, screenshots and detailed
code descriptions. These exercises should help you in understanding and
running the examples presented in the subsequent chapters. We also
cover some Python language lessons, which will help you to get to know
the Python programming language by heart, through learning by doing.
In Example 1 (see Chapter 2), we introduced two native graphical user
interface elements: the text input field (a single-field dialog) and the
popup note. Here we want to show a whole range of them:
• note – popup notes
• query – single-field input dialog
• multi-query – two-field text input dialog
• popup menu – simple menu
• selection list – simple list with find pane
• multi-selection list – list to make multiple selections
In the following paragraphs, we look at these elements in detail and
explain how you can use them in your own programs.