how android api's evolved: viewflipper vs viewpager

How Android API’s evolved

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jueves, 23 de enero de 14

+ Who i am?+ The problem+ + Demo+ Resumen+ Q & A

Index

1


Who i am?

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GDG AndroidTitlan founderAndroid Hacker

Enrique Díaz

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The problem

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The problem

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Aha!

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How we implement HomeScreen-like

functionality?

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0. Create an object which extends from ViewFlipper.1. In order to recognize gestures, we need an object which extends GestureDetector.2. Also we need gestureListener interface to recognize when user has touched the screen.3. From each XML file, we define 4 animations( left intro, left outro, right intro, right outro ).4. Create a class which extends from SimpleOnGestureListener, then add business logic to start an animation based on fling direction.5. Last, we define a ViewFlipper element from XML which contains layouts that gets animated based in business logic.

ViewFlipper+ GestureDetector+Animations

Lots of things to do here!

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Demo

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Yes, it hurts

what i wantedWorse, it’s not

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Download the code here:

https://github.com/nRike/Swipe-with-ViewFlip--.git

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https://github.com/nRike/GCM-Demo




How we implement HomeScreen-like

functionality?

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0. We create a class which extends PageAdapter, then assign the amount of existing elements to swipe and inflate them. 1. Create an element in XML which extends from android.support.v4.view.ViewPager.2. Assign our PageAdapter to a ViewPager object in our main Activity.3. We create each resource through XML.4. There’s no step 4.

PageAdapter + ViewPager Lots of fun to enjoy here!

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Demo

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Yes, it doesn’t hurts

it is what i wanted!

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Download the code here:

https://github.com/nRike/SimpleViewPager.git

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Q & A

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Resume0. Use the latest API level, because there’s lots of awesome API’s to write less code and DO MORE. 1. Simple is better.2. Think users first and last.3. Keep calm and Gagnam Style 18


How Android API’s evolved

Thank you!

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how android api's evolved: viewflipper vs viewpager

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