Matej Vidaković Android app development in 2017
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Matej Vidaković
Android app development
in 2017
What’s up with Android Java?
● Some Java 8 feature support (in theory)
● Libs that help
○ Retrolambda
○ Lightweight-Stream-API
● Dalvik vs ART
● Alternatives?
○ Kotlin
○ Scala
○ Groovy
○ …
Which IDE to use?
● Eclipse - no longer officially supported
● Android Studio - official IDE
● NetBeans, IDEA - Android plugins
What makes Android Studio so cool?
● Modified IDEA
● Gradle build system support
○ Easily customizable
○ Build variants (type x flavor)
● Emulator now actually fast
I’m still not convinced...
● Android specific static code analysis (support annotations)
● Profiling tools
● Instant run
● Vector drawable
● Data Binding
● Samples browser
● Apk analyzer
● Layout inspector
● ...
What about testing?
● Local
○ No Android dependencies
○ Run on local JVM
● Instrumented
○ Android dependencies
○ Run on device or emulator
● JUnit 4
● Espresso UI testing
● Test recorder (beta)
2.3.3 - 2.3.7 Gingerbread 10 1.0%
4.0.3 - 4.0.4 Ice Cream Sandwich 15 1.1%
4.1.x Jelly Bean 16 4.0%
4.2.x 17 5.9%
4.3 18 1.7%
4.4 KitKat 19 22.6%
5.0 Lollipop 21 10.1%
5.1 22 23.3%
6.0 Marshmallow 23 29.6%
7.0 Nougat 24 0.5%
7.1 25 0.2%
Which versions to support?
IDEALLYminSdkVersion (lowest possible) <= targetSdkVersion == compileSdkVersion
(latest SDK)
Support library
MultidexPalette
Test
RecyclerView
Design
GridLayout
Leanback
Annotations
Percent
MediaRouterCardView
How to support ancient versions?
Appcompat
Is 64k method limit still a thing?
● Yes…
● Check method count of libs at methodscount.com
● Use Proguard / Dexguard (@Keep)
● If all else fails - Multidex
How should my app look like?
And how do I do that?
● Design guidelines - material.io/guidelines
● Standard icons - material.io/icons
● Support libs
○ Design
○ Appcompat
○ CardView
○ Palette
○ Percent
● Material Design Android Library
Some things never change...
Where can I learn more?
● Udacity.com - basic and advanced Android nanodegrees
● Coursera.org - Android App Development Specialization
● Android Programming: The Big Nerd Ranch Guide book (new
edition coming this month)
● Caster.io
● Google codelabs
Cool presentation, but I already knew all that…ool talk, but I already know all of that…
five.agency/about/careers/
Related Documents
