Transcript coursework2_4_phonegap

Coursework 2: getting started (4) –
using PhoneGap to build mobile
applications (optional)
Chris Greenhalgh
G54UBI / 2011-02-24
Introduction
• PhoneGap is an open source project which allows HTML/Javascript
mobile browser applications to be converted to installable
applications (i.e. no web server at all)
• You will need to use PhoneGap if and only if:
– You want to run applications where there is no wireless network or
– You want to access sensors other than GPS, in particular compass,
accelerometer, camera or
– You want to add other native functionality not available in a web
browser, e.g. starting other apps
• You do NOT need to use PhoneGap to create a browser-based
application that uses GPS and/or user input where a wireless
network is present
• Note that Google AppInventor also allows simple installable apps to
be created which can use other inputs and do not require a local
network: http://appinventor.googlelabs.com/about/ (but with other
limitations)
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Contents
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Installing Eclipse
Starting Eclipse
Setting the web proxy
Installing the ADT plugin
Configuring the ADT plugin
Creating an initial project
A very brief introduction to using Eclipse
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Installing the Android SDK
Note: this step should NOT be required in the labs: should already be installed in
C:\Program Files\Android\android-sdk-windows\
• See the slide set on running the emulator for details
of installing the Android SDK
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Installing Eclipse
Note: this should already be installed in the labs under C:\G54UBI\
• Follow the instruction for Android on this
page: http://www.phonegap.com/start
– Ensure you have JDK 1.6 installed
– Download and install (unpack) Eclipse “classic”
– Install and configure the Android SDK (see slides
on running an emulator)
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Starting Eclipse
Note: this should already be installed in the labs under C:\G54UBI\
– Start Eclipse (double click eclipse\eclipse.exe)
• N.B. don’t use the version of eclipse in the labs on the
desktop – it is out of date and doesn’t have the ADT or
other plugins installed
– Select the initial “workspace”, i.e. where you
“projects” will be stored (make a note of it)
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Setting the web proxy
Note: this should only need to be done ONCE
– Check that the proxy is configured correctly for
Eclipse
• Window  Preferences: General / Network Connections
(e.g. Manual, HTTP host 128.243.253.109 port 8080)
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Installing the ADT plugin
Note: this should already be installed in the labs under C:\G54UBI\
• (http://www.phonegap.com/start step 3)
• See http://developer.android.com/sdk/eclipse-adt.html#installing
– Downloading the ADT plugin – see link
• You may also wish to install (from the standard
“Helios” repository) the following:
– Eclipse Web Development Tools
– Eclipse XML Editors and tools
– JavaScript Development Tools
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Configuring the ADT plugin
Note: this should only need to be done ONCE
– Check that the ADT Plugin is configured with the
location of the Android SDK
• Window  Preferences: Android
• (SDK was previously installed, e.g. in C:\Program
Files\Android\android-sdk-windows)
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Creating an initial project
• http://www.phonegap.com/start steps 4-6 go
through setting up an initial project and
running it
• Alternatively you can do the following to
achieve the same result…
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Downloading the sample project
• Download the project file:
http://www.cs.nott.ac.uk/~cmg/G54UBI/mobile/HelloPhoneGap.zip
• Unzip it into your Eclipse workspace directory
– (remember when Eclipse started… e.g.
workspace/ in your home directory)
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Importing the sample project
• In Eclipse select File  Import…,
– expand “General”, select “Existing Projects into
Workspace” and click “Next”
– Click “Browse…” and select the project directory
in the workspace
– Click “Finish”
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Eclipse interface overview
Explorer:
all files
File
editor
The
project
“Web”
files
Main
page
Other
views,
e.g.
errors
Project
settings
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A simple web page
File
editor
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Changing application settings
“package”
Must be
different
for each
app.
= App
“package”
App
version
must
increase
for each
version of
one app.
Project
settings
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Running the application
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The sample application
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Conclusions
• You should now be able to
– Install and configure Eclipse and the ADT plugin
– Set up, edit and run a simple PhoneGap project
• You can use this sample as the basis for your
own development if you wish
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