Android-Notes

Android

• Native :

  • Java (Android Studio, Eclipse)-OOP
  • Kotlin (Android Studio, Intellij IDE)- OOP and Structure
  • Scala (Intellij IDE)-OOP and Structure

• Cross platform

  • PhoneGap
  • Titanium
  • React Native

• How to learn: https://blog.aritraroy.in/what-my-2-years-of-android-development-have-taught-me-the-hard-way-52b495ba5c51#.t6r7jqw7u

• Project and Code guidelines: https://github.com/ribot/android-guidelines/blob/master/project_and_code_guidelines.md

A. Native

I. Java

1. Language and IDE Write with Java (currently Java 7 and supported Java 8) and write on Android Studio and Eclipse IDE
2. Database local (ussually used):

• SQLite (SQL):
  • Can use some framework ORM (Sugar ORM?) to convert data from database to object model in OOP
  • greenDao: http://lomza.totem-soft.com/tutorial-how-to-integrate-greendao/ https://www.youtube.com/watch?v=zDdu1MlXjZw
• Realm:
  • https://realm.io/docs/java/latest/
• SQLighter (SQL):
  • https://github.com/vals-productions/sqlighter
• Couchbase Lite (NoSQL)

-DBFlow

-SnappyDB

3. Other Libraries:

• GSON : Parse JSON- https://github.com/google/gson
• Hackson-databind: https://github.com/FasterXML/jackson-databind
• Otto/EventBus: stream bus
  • http://square.github.io/otto/
  • EventBus : https://medium.com/@cainwong/using-an-eventbus-in-android-pt-1-why-an-eventbus-c2c9cdff41d7#.u1s04p9gh
• Parceler (base on Parcelable): https://github.com/johncarl81/parceler
• Retrofit/Volley: Network calls
  • http://laptrinhandroid.xyz/2015/09/16/gioi-thieu-retrofit-2-0-a-type-safe-http-client-for-android/
  • http://code.tutsplus.com/tutorials/an-introduction-to-volley--cms-23800
• Robolectric
• Dagger 2 : https://medium.com/@_tiwiz/di-101-part-1-81896c2858a0#.j8y67vk7d
• Rx Java, Android: http://x-team.com/2016/02/introduction-reactivex-android/ https://gist.github.com/staltz/868e7e9bc2a7b8c1f754 https://medium.com/@Viraj.Tank/art-of-subscribe-unsubscribe-in-rxjava-12c30d315777#.wq67j5v3v
  • https://medium.com/crunching-rxandroid/crunching-rxandroid-intro-c27eb6f009ea#.j9ylr84hx
  • https://medium.com/fuzz/howdy-rxjava-8f40fef88181#.suvzbishp
  • https://medium.com/we-are-yammer/converting-callback-async-calls-to-rxjava-ebc68bde5831#.7nuddblmo
• Rx binding: https://realm.io/news/donn-felker-reactive-android-ui-programming-with-rxbinding/
• Lambda expression and Method Reference: https://blog.idrsolutions.com/2015/02/java-8-method-references-explained-5-minutes/
• Others you can find here: https://android-arsenal.com/

3.1 Design Pattern: - Java design patterns: https://github.com/iluwatar/java-design-patterns - Creational Pattern (Khởi tạo object): Builder, Abtract Factory, Factory Method, Singleton, Prototype - Structural Pattern (Thiết lập, định nghĩa quan hệ giữa các object): Adapter, Bridge, Composite, Decorator, Façade, Proxy, Flyweight - Bahavioral Pattern (Dùng trong thực hiện các hành vi của object): Interpretor, Iterator, Observer,Template Method, Chain of Responsibility, Command, Mediator, Memento, State, Startegy and Visitor - References: + http://laptrinh.vn/d/4346-design-pattern-la-gi-huong-dan-design-pattern.html - MVP: http://hannesdorfmann.com/mosby/mvp/

3.2 Notes: - Best practice Android: https://github.com/futurice/android-best-practices#java-packages-architecture - Save States Fragment/Activity: http://inthecheesefactory.com/blog/fragment-state-saving-best-practices/en - Style writing: http://www.google.com/design/spec/style/writing.html#writing-capitalization-punctuation - http://saulmm.github.io/avoding-android-cold-starts - Memory leak: http://daynhauhoc.com/t/memory-leak-nguyen-nhan-gay-leak-trong-android/11343 - http://blog.appconus.com/2015/08/16/memory-leak-trong-android-nguyen-nhan-va-cach-xu-ly-phan-1/ - Scale type ImageView: https://robots.thoughtbot.com/android-imageview-scaletype-a-visual-guide - Load more RecyclerView: https://codentrick.com/load-more-recyclerview-bottom-progressbar/ - Sticker Header RecyclerView: https://github.com/edubarr/header-decor

3.3 Awesome libraries - UX/UI: https://github.com/wasabeef/awesome-android-ui - Libraries: https://github.com/wasabeef/awesome-android-libraries - https://snowdream.github.io/awesome-android/

3.4 Some explains: - Fragment: + A Fragment must always be embedded in an Activity + Use android.app.Fragment with Activity

- FragmentActivity:
	+ Use the FragmentActivity to hold your Fragments
	+ Use android.support.v4.app.Fragment with FragmentActivity
	
Don't add the support package Fragment to an Activity as it will cause an Exception to be thrown.

- Fragment transitions with shared elements: https://medium.com/@bherbst/fragment-transitions-with-shared-elements-7c7d71d31cbb#.mqmwvhldz

- Annotation: 
	+ http://o7planning.org/web/fe/default/vi/document/18678/huong-dan-su-dung-java-annotation
	+ http://beginnersbook.com/2014/09/java-annotations/
	
- Android : http://icetea-vn.blogspot.com/search/label/Android

- Android thread: 
	+ "background" or "worker" threads (same)
	+ UI thread or main thread (same)

4. Some bug may occur on Gradle

4.1 Gradle sync failed: - Cause: org/gradle/api/publication/maven/internal/DefaultMavenFactory

   + if your "gradle.properties" file which is located at the root level of your project contains :

 classpath 'com.github.dcendents:android-maven-plugin:1.2',

 try to change to:

 classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'

 And change classpath 'android-maven'

 to classpath

 apply plugin: 'com.github.dcendents.android-maven'

5. Some plugins support fast coding:

5.1 Android DPI Caculator

5.2 Android Material Design Icon Generator Plugin

5.3 Android Parcelable Code Generator

5.4 CheckStyle

5.5 9-Patch-Resizer: https://github.com/redwarp/9-Patch-Resizer/releases

6. Bug notes:

   6.1 Set size Dialog: You can custom your size of Dialog

   http://stackoverflow.com/questions/2306503/how-to-make-an-alert-dialog-fill-90-of-screen-size

   6.2 Dismiss SoftKeyboard when click outside of Edittext

   http://stackoverflow.com/questions/20713273/dismiss-keyboard-when-click-outside-of-edittext-in-android

   6.3 Popup button at bottom when show SoftKeyboard:

   Add this snippet code to Activity class in AndroidManifest:

   android:windowSoftInputMode="adjustPan|adjustResize"
   

   6.4 Hide shadow toolbar:

   Add this snippet code to AppBarLayout:

   app:elevation="0dp"
   

   --------------------------------- Coming soon ------------------------------------------

II. Kotlin

1. Language and IDE Kotlin language and you can write on Android Studio IDE with plugin Kotlin or Intellij IDE
2. Some tutorials: - http://cirorizzo.net/2016/03/04/building-a-kotlin-project/

-------------------------------- Coming soon -----------------------------------------

B. CrossPlatform

I. React Native

--------------------------- Coming soon ------------------------------------------