The document discusses design principles and user interface elements for Android apps. It recommends keeping the user experience simple, using visual elements like images to convey information efficiently, and following Android design patterns and guidelines to provide consistency across apps. Key interface elements discussed include the status bar, navigation bar, and use of themes to apply consistent styles.

1. Design Architecture
Rakesh Kumar Jha

2. Creative Vision
Enchant me (charming)
Simplify my life
Make me amazing

3. Design Principles
Design by Android User Experience Team to
keep users' best interests
Use a A beautiful surface
 a carefully-placed animation
 a well-timed sound effect
Use real objects

4. Design Principles
Keep data brief
Pictures are equal to 1000 words
Show what I need & when I need

5. UI overview
Android's system UI provides the framework
on top of that you build your app
UI will play an important role to apps

6. Important UI Play Main Role
Status Bar
• Displays pending notifications on the left and status,
such as time, battery level, or signal strength, on the
right. Swipe down from the status bar to show
notification details.
Navigation Bar
• New for phones in Android 4.0, the navigation bar is
present only on devices that don't have the traditional
hardware keys. It houses the device navigation controls
Back, Home, and Recents, and also displays a menu for
apps written for Android 2.3 or earlier.

7. Style
What is Style ?
How it works ?
What are important feature of Style ?
Why we prefer to use Style ?

8. Devices & Displays
Millions of devices are
LDPI (120 DPI)
MDPI (160 DPI)
HDPI (240 DPI)
XHDPI (320 DPI)
categories in 4 types –
xhdpi: 2.0
hdpi: 1.5
mdpi: 1.0 (baseline)
ldpi: 0.75

9. Typographic Scale

10. Color
Choose colors that fit with your brand
Blue is the standard accent color in Android's
color palette.

11. Iconography
Take care when using icon to apps
 Sizes & scale
 Style

12. Writing Text
Keep it brief
Keep it simple
Be friendly
Put the most important things first
Describe only what’s necessary
Avoid repetition

13. Themes
Themes are Android's mechanism for applying
a consistent style to an app or activity.
Android will provide you 3 default themes –
 Holo Light
 Holo Dark
 Holo Light with dark action bars

14. Themes
Themes are Android's mechanism for applying
a consistent style to an app or activity.
Android will provide you 3 default themes –
 Holo Light
 Holo Dark
 Holo Light with dark action bars

15. Patterns
What are the new pattern in Android
Why to prioritize patterns

16. New in Android
What are the new pattern in Android
Why to prioritize patterns
Different types of Gestures

17. Patterns
What are the new pattern in Android
Why to prioritize patterns