Firebase gives you freedom and autonomy with almost no investment. You can get it up and run even if you know nothing about servers, lambdas, node.js or hosting.

https://goo.gl/DEf6fG

#firebase

MapMe is an Android library written in Kotlin, bringing the adapter pattern to maps.

Know how to use a RecyclerView Adapter? Then you know how to use MapMe!

Read more: https://goo.gl/RRf2ZL

#lib

[8 min read]

- Implementing AsyncListUtil
- AsyncListUtil & viewport changes
- Sample with source code

Read more: https://goo.gl/zejJEz

#lib

[4 min read]

- Guidelines [% vs dp]
- Barriers usage
- Horizontal/Vertical Chain
- Groups

Read more: https://goo.gl/mFD3DX

#ui

[6 min read]

- vector formats
- compatibility
- when to use
- vector animation

Read more: https://goo.gl/etTtDs

#ui

[12 min read]

- MVVM architecture + repository pattern + Android Manager Wrappers
- RxJava2 in architecture
- Dagger 2.11
- Retrofit (+ Rx Java2)
- Room

Read more: https://goo.gl/shCGcD

#kotlin

Chatbot in Android [3 min read]

- predefined answers
- voice commands

Read more: https://goo.gl/uhZqre

#firebase

- min SDK: API 21
- quality range: 0~100%
- works with Bitmap and File objects
- formats: JPEG, PNG, WEBP
- RxJava support

Read more: https://goo.gl/JBvxU6

#lib

- StackTrace pointing to the exact line of code that created the issue
- integrated with Crashlytics reports
- StackTrace filtering

Read more: https://goo.gl/EXzDNH

#lib #rx

Secure Android Application - [8 min read]

- network
- intents
- data storage
- keys
- libs

Read more: https://goo.gl/FDFmku

#security

Generate app shortcuts from Shortcut annotations.

- no need to touch the manifest
- no need to create XML files
- no need to use the shortcut manager

Link: http://bit.ly/2yYib32

#lib

Android Studio 3.0 Release [3 min read]

- Kotlin fully supported
- Adaptive Icon Wizard
- Instant App Support
- New Android Profiler
- Android Emulator Quick Boot

Read more: http://bit.ly/2gDkBc6

All changes in 6 min

Features:
- JPEG, PNG, GIF, MPEG, MP4
- works with Glide and Picasso
- different themes for picker screen
- custom image filter rules

Link: http://bit.ly/2gKax16

#lib

Features:
- customize crop area's aspect ratio
- resize a crop area
- customize theme and colors
- crop area shape (support custom shapes)

Link: http://bit.ly/2gLa7aZ

#lib

Features:
- does not depend on any library
- uses an asynchronous thread pool
- supports File, Bitmap

Link: http://bit.ly/2gIU7Gh

#lib

Still using Dagger2? Try Koin! [6 min read]

- don’t require any special Android classes
- no need to write annotation
- no need to regenerate & recompile code

Read more: http://bit.ly/2ziDPwg

#lib

[3 min read] Rxjava 2.0 wrapper on Google’s Android Firebase library.

- RxFirebaseAuth
- RxFirebaseUser
- RxFirebaseDatabase
- RxFirebaseStorage

Link: http://bit.ly/2yOT5zV

#rx

Staging rollout [5 min read]

- choose the right %
- halting staged rollout
- deliver fixes for staged rollout users

Full article: http://bit.ly/2yXlDYb

#tips

-no rule
-keep
-keepclassmembers
-keepnames
-keepclassmembernames
-keepclasseswithmembers
-keepclasseswithmembernames

Read mode: http://bit.ly/2BcxfYP

#tools @android_united

7 TOP tutorials to learn Kotlin for Android [5 min read]

Full article: http://bit.ly/2BjNTWr

#kotlin @android_united