PyS60 in Real World - Python

In an earlier article I wrote, the topic of discussion covered the basic UI controls that PyS60 provides. These controls are useful when the solution to be developed is simple in terms of interaction. However, if a scenario presents itself where interaction becomes complex, then the basic controls would not suffice. Keep reading to learn about the advanced controls you'll need to deal with these kinds of issues.

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By: A.P.Rajshekhar

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December 29, 2008

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In the last discussion, a guessing game was developed. The code was as follows

from appuifw import *

continue_guess=true

while continue_guess:

guess_no=random()

user_guess=query(u”Enter your guess”, ‘number’)

if user_guess is Null:

note(u”You have opted out”)

continue_guess=false

elif user_guess<guess_no:

note(u”Your guess is lesser than the goal”)

elif user_guess>guess_no:

note(u”Your guess is higher than the goal”)

else:

note(u”Congrats for excellent guess”)

user_choice=query(u”Enter Y to continue or N to quit”)

if user_choice is Null or user_choice==’N’:

continue_guess=false

else:

continue_guess=true

Now, let us change the display part for displaying the choices. Instead of taking user’s input using a query dialog, let us show a selection list from which the user can select a value. The following code

user_guess=query(u”Enter your guess”, ‘number’)

needs to be changed to

list = [guess-100, guess, guess*200, u”Quit”]

user_guess = selection_list(list)

First, a list is created using the guess number and its combination. Then the list is given as an argument to the selection_list() method. The returned index, which is the value selected by the user, is then stored in the user_guess variable.

Next: Reprocessing the Result >>