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mobile app development

Android Code Magnets

Here is the code to a program that queries your web server for the list of names as a JSON array
and then displays the list on the smartphone. The only trouble is, the second half of the program
is a bunch of mixed-up code magnets at the bottom of the screen. Your job is to rearrange the
magnets to complete the program.
import android
import json
import time Do the usual imports…these
ones pull in web client
functionality.
from urllib import urlencode
All of this from urllib2 import urlopen
program’s
messages are in
one place. hello_msg = "Welcome to Coach Kelly's Timing App"
list_title = 'Here is your list of athletes:'
quit_msg = "Quitting Coach Kelly’s App."
The name web_server = 'http://192.168.1.33:8080' Change this to the
web address that’s
of the CGI get_names_cgi = '/cgi-bin/generate_names.py' running your web
script to run
on the web def send_to_server(url, post_data=None): server.
server
if post_data:
This function takes both a
page = urlopen(url, urlencode(post_data)) web address (url) and some
else: optional data (post_data)
page = urlopen(url) and sends a web request to
return(page.read().decode("utf8")) your web server. The web
response is returned to the
caller.
This code’s a
mess…can you
fix it?

athlete_names = sorted(json.loads(send_to_server(web_server + get_names_cgi)))

status_update(quit_msg) resp = app.dialogGetResponse().result
app.dialogShow() app.dialogCreateAlert(list_title)
status_update(hello_msg)
def status_update(msg, how_long=2):
app.makeToast(msg) app.dialogSetPositiveButtonText('Select')
time.sleep(how_long) app = android.Android()

app.dialogSetNegativeButtonText('Quit')
app.dialogSetSingleChoiceItems(athlete_names)
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