google's obsession with sweet treats. what's new in ics and the future of android
DESCRIPTION
Ice cream sandwich is Googles most ambitious version of Android to date and the reviews have been positive. Get an in-depth ride through Ice cream sandwich, what it has to offer and what the future holds of Android's next version Jellybean. We will cover topics such as dealing with multiple screen sizes, Async Tasks, the new powerful animation framework and lastly we will look into what we can expect from Jellybean, Android 5.0.TRANSCRIPT
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Faisal Abid @faisalabidwww.faisalabid.com
GOOGLE’S OBSESSION WITH SWEET TREATS
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Faisal Abid @faisalabidwww.faisalabid.com
ICECREAM SANDWICH AND OTHER DELICIOUS THINGS
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Faisal Abid @faisalabidwww.faisalabid.com
• Software Developer working with Android
since the beta days
• Previously a Flex/Flash and ColdFusion developer.
• Co-Author Flex 3 in Action
• Currently apart from Android, heavily involved in
the Node.js and CoffeeScript community.
• Entrepreneur, Author, Teacher & Developer
WHO AM I?
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Faisal Abid @faisalabidwww.faisalabid.com
ABOUT THIS TALK
What’s cool in 3.0/4.0
• Design Guidelines
• Animation Framework
• ActionBar Framework
• Fragments
• New Views
• Dialog Fragments
The Future of Android Development
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Faisal Abid @faisalabidwww.faisalabid.com
DESIGN GUIDELINES
Previous versions of Android looked like crap. There I said it.
• ICS looks beautiful.
• ICS focuses on simplicity
• Bye bye menu button
• Bye bye hardware keys
ICS is designed for multiple screens.
Flat look. Easy to scale.
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Faisal Abid @faisalabidwww.faisalabid.com
ACTIONBAR
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Faisal Abid @faisalabidwww.faisalabid.com
SWIPING (VIEW PAGER)➸
➸
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Faisal Abid @faisalabidwww.faisalabid.com
HOLO THEME
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Faisal Abid @faisalabidwww.faisalabid.com
ANIMATION FRAMEWORK
• Previous versions of Android did not do animations well
• I hated the anim.xml files for simple animations
• With Honeycomb, Android introduced .animate()
on all views.
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Faisal Abid @faisalabidwww.faisalabid.com
DEMO
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Faisal Abid @faisalabidwww.faisalabid.com
OBJECTANIMATOR, VALUEANIMATOR
• .animate() is powerful, but ObjectAnimator and
ValueAnimator are even more powerful.
• ObjectAnimator allows you to animate any property
of an object
objectAnimatorNext = ObjectAnimator.ofFloat(this, “translationX”, 100f);
objectAnimatorNext.setInterpolator(new DecelerateInterpolator());
objectAnimatorNext.start();
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Faisal Abid @faisalabidwww.faisalabid.com
QUICK WALKTHROUGH
PARALLAXParallax is cool, everyone wants to do it
and wants to know how.
Lets walk through how to do a simple parallax
effect using ObjectAnimator
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Faisal Abid @faisalabidwww.faisalabid.com
SUMMARY HOW IT WORKS
• Foreground has to be faster.
• ObjectAnimator animates it forward and backwards
• Check if Animation already running to prevent it going nuts
• To make it usable in the real world you will need to fix the
edges of the imageview so that it doesn’t overflow.
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Faisal Abid @faisalabidwww.faisalabid.com
VALUEANIMATOR
• Not all views have all the properties ready to be animated
using .animate()
• ValueAnimator will handle the rest for you.
• Animates the values from x to y.
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Faisal Abid @faisalabidwww.faisalabid.com
DEMO
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Faisal Abid @faisalabidwww.faisalabid.com
VALUEANIMATOR
That’s cool but how do I animate it?• So we ran it. But.. It didn’t do anything. It knows nothing of
the progressbar.
• Enter onAnimateUpdateListener
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Faisal Abid @faisalabidwww.faisalabid.com
DEMO
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Faisal Abid @faisalabidwww.faisalabid.com
ACTIONBAR
• Bigger screens, thumb easier to click on top.
• Android introduced ActionBar in Honeycomb,
but ICS makes it much more cooler.
• ActionBar can support multiple screen resolution
with ease.
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Faisal Abid @faisalabidwww.faisalabid.com
HOW TO USE ACTIONBAR
• ActionBar a = getActionBar()
• Actionbar uses the menuInflator and the
onCreateOptionsMenu
• Why? To support backwards compatibility.
Do I like it? No.
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Faisal Abid @faisalabidwww.faisalabid.com
IFROOM | WITHTEXT
• One thing I like very much is the IfRoom|WithText
parameters.
• If the screen is small, they will just appear in the
overflow icon for GalaxyNexus+ or in the menu on
phones with hardware keys.
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Faisal Abid @faisalabidwww.faisalabid.com
DEMO
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Faisal Abid @faisalabidwww.faisalabid.com
FRAGMENTS
• Android is fragmented, so they introduced Fragments. Heh heh.
• Support large and small screen layouts.
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Faisal Abid @faisalabidwww.faisalabid.com
ON A SINGLE SCREEN
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Faisal Abid @faisalabidwww.faisalabid.com
ON A TABLET
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Faisal Abid @faisalabidwww.faisalabid.com
GRIDLAYOUT AND SPACE
• ICS introduces two new Views.
• GridLayout and Space
• Gridlayout lets you get an amazing layout structure while
space, well spaces out your layout
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Faisal Abid @faisalabidwww.faisalabid.com
GRIDLAYOUT
• Previous, we used LinearLayout, FrameLayout and
a combination of other Layouts to get a pretty cool
UI done.
• With GridLayout, we can achieve the same without
multiple views
• Less views = faster load times.
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Faisal Abid @faisalabidwww.faisalabid.com
DEMO
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Faisal Abid @faisalabidwww.faisalabid.com
DIALOG FRAGMENT
• Recently introduced
• DialogFragment gets rid of the ugly onCreateDialog(int)
No more case switching for no reason.
• Scales perfectly on all phone sizes
• Easy to use. You can pass listeners objects to the dialog
for notification results!
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Faisal Abid @faisalabidwww.faisalabid.com
DEMO
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Faisal Abid @faisalabidwww.faisalabid.com
FUTURE OF ANDROID
Im not a Google employee so I have no idea. But I can make
some educated guesses.
PROS
• Better API support for Cloud.
• Siri altnerative with an open API
• More Focus on Gaming. Android
Game Center? OpenFient Acquisition?
• More options for TV development,
Google Glasses Integration.
CONS
• More and More phones. Android is
growing at a crazy rate. Which means
more trouble for developers to port on
different phones.
• Which means Bad android reviews and
discouragement to develop further.
• iPhone starts to look very promising in
this scenario.
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Faisal Abid @faisalabidwww.faisalabid.com
THANK YOUANY QUERIES?