Android DesignShyamala Prayaga

About Me Passionate User Experience Evangelist

My Experiences Pramati Kony Solutions Yodlee Mindtree AOL

Today’s agenda Understanding need and context

Android design challenges

Android design goals

Process

Understanding need and context

Name: Rex Lee

Age: 28

Occupation: Businessman

Interest: Travelling, playing guitar, listening music and photography

Technology freak, Android and smartphone user

About the persona

Needs

Checking mails

Mobile Banking

Socializing with friends

Photography

Navigation

Listening music

Latest updates

Online shopping

Context of use

While driving

Dining

Work

Challenges

ProblemNeed to launch frequently usedapps from the menu

SolutionIntegrate Widgets for frequently used tasks

Solution

Integrate Notifications for Time Sensitive Events

Problem

Need to share news, information, pictures, notes etc with friends

SolutionIntegration with social media

ProblemContent is buried deeper in app.

Solution

Show Interesting results immediately

Problem

Need to get in touch with contacts via mail, messenger, call from one application

Solution

Cross application access and Integration

Some Statistics

Metrics Android is the fastest growing mobile

platform in the world

More than 850,000 Android devices are activated each day

More than 300 million Android devices have been activated globally

How do I translate my website's experience to a phone

or tablet experience?

How do I best realizemy service as a singleextended experience?

Thinking Mobile Focus on essential use cases

Important things must be fast Manage progressive complexity

Double-down on emotional engagement The magic of direct manipulation Aesthetics & hero moments

Thinking Mobile Contd… Take advantage of uniquely mobile

opportunities

Fear complex navigational models

The consistency paradox Product consistency

The same product experience on different devices

My take on dealing with paradox

Start from device consistency

My take on dealing with paradox Fit as much product consistency

My take on dealing with paradox break device consistency in narrow,

targeted ways

Android Design Challenges

Screen Size

SolutionWork in the base standard (medium size, MDPI) and scale it up or down for the other buckets

Solution Start with the device with the largest screen

size

Scale down for smaller screen

Diagram of various screen configurations

Typography Limited fonts

available

can bundle external fonts

Typographic ScaleAndroid framework uses limited set of font size -

* scale-independent pixels (sp)

Screen pixel density

density-independent pixels (dp)

Solution Categorize devices into size and density

buckets

The density buckets are LDPI, MDPI, HDPI, and XHDPI

Provide alternative bitmap images for different density buckets

Other challenges Radios, sensors, and feedback

WiFi? 3G? 4G? Bluetooth? Front and rear-facing cameras Haptic (vibration) feedback GPS/Compass/accelerometer/NFC

Screen aspect ratio Primary / secondary orientations

Android Design Goals

Android design goals Enchant me

Simplify my life

Make me amazing

Enchant me

Delight me in surprising ways

Animated live wall paper which changes according to climate

A beautiful surface A carefully-placed

animation Well-timed sound

effect

Real objects are more fun than buttons and menus

Touch collage to add photos, touch photos to change them

Allow people to directly touch and manipulate objects

Get to know me

Learn people’s preferences over time

Remember previous choices

Seat selection choice for an airline booking app

Let me make it mine People love to add

personal touches Helps them feel at

home and in control

Personalized wallpaper selection

Keep it briefUse short phrases with simple words

Pictures are faster than words Consider using pictures

to explain idea Pictures get people’s

attention Can be efficient than

words

Decide for me but let me have the final say

Provide smart option based on user actions

Allow undo if something went wrong

Only show what I need when I need it Teach people as they go

Never lose my stuff Remember settings, personal touches, and

creations

Simplify my life

If it looks the same, it should act the same Help people discern functional differences

by making them visually distinct

Only interrupt me if it’s important shield people from unimportant

minutiae

Make important things fast Decide what's most important in your app Make it easy to find and fast to use

Make me amazing

Give me tricks that work everywhere Make your app easier to

learn by leveraging visual patterns

Sprinkle encouragement Break complex tasks into

smaller steps Give feedback on actions

Do the heavy lifting for me

Make novices feel like experts by enabling new tasks

It’s not my fault Be gentle in how you prompt people to

make corrections If something goes wrong, give clear

recovery instructions

Process

Establish shared, ambitious UX goals

Iterate and validate

Explore designs

We are all user experience advocates

Resourceshttp://developer.android.com/design/index.html

Questions