Tutorials and more

Thursday, July 28, 2016

Android Debugging

Two great ways to debug better. Happy testing.

1. In Android Studio add font color to logcat.

How to add color font to logcat follow the below steps:

Open Android Studio
Preferences -> Editor -> Colors & Fonts -> Android Logcat.
Click button ‘Save As’, and name your new Scheme. (uncheck ‘Use inherited attributes’)
In the right side select a color for each component: Assert, Debug, Error, Info, Verbose, Warning.

2. Add color to terminal adb logcat.

Take a look at this tool from Jake Wharton pidcast:

Easy to use.

Install: $brew install pidcat

Use: $adb logcat -v brief | pidcat com.myPackage.Name

Third party tool optioon: Mac tool LogRabbit http://lograbbit.com $10

Let me know if you have any questions.

Thursday, July 21, 2016

Update Android SDK and Tools from terminal

1. Open Terminal and type below commands.

Opens Android SDK Manager UI. (same as
$android

Software available to update
$android list sdk -a

Install software
$android update sdk -a -u -t #
$enter 'y' to accept license

-----------------------------------------
Example
$android list sdk -a

outputs:
140- GPU Debugging tools, revision 3.1
141- GPU Debugging tools, revision 1.0.3
142- Android Support Repository, revision 34

We want to update "Android Support Repository, revision 34".
we need to use below command:
$android update sdk -a -u -t 142
$enter 'y' to accept license
Done command installs Android Support Repository, revision 34 :)

Wednesday, July 20, 2016

In Android Studio 2.2 gradlew command can donwload android.sdk dependencies

For more info watch video from GoogleIO 2016 What's new in Android Development tools (min 11:55-12:15)

Gradle Build System release notes

Add to gradle.properties:
android.builder.sdkDownload=true

According to this post:
Command will only download android sdk, it will not download google service, repository etc..

Saturday, May 21, 2016

Firebase - Android

First of all: Thank you Google for improving Firebase!!!

Great examples every android developer must do:
https://github.com/firebase/quickstart-android
Firebase Documentation
https://firebase.google.com/docs/android/setup#prerequisites

Videos to watch:
Google io 2016 https://events.google.com/io2016/schedule#day1
Firebase videos https://events.google.com/io2016/schedule?filters=Firebase%2CSessions

To use Firebase:
1. You need to register here
2. Create a new App
3. Download and move google.services,json to /AndroidProject/app/google.services,json
4. Run demo apps provided by google.
5. Have fun learning.

Espresso UI testing
https://events.google.com/io2016/schedule?sid=1ac924f1-0bef-e511-a517-00155d5066d7#day2/1ac924f1-0bef-e511-a517-00155d5066d7

Add ads
https://firebase.google.com/docs/admob/android/quick-start#load_the_ad_in_the_mainactivity_class

Firebase code samples
https://firebase.google.com/docs/samples/

Whats new in AS 2.2 Preview
http://thenextweb.com/google/2016/05/20/android-studio-new-layout-editor-ui-test-recorder-firebase-integration/#gref

Sunday, May 15, 2016

Android Best Pratices - useful Libraries

Best Practices:

Building Android Apps — 30 things that experience made me learn the hard way
https://medium.com/@cesarmcferreira/building-android-apps-30-things-that-experience-made-me-learn-the-hard-way-313680430bf9#.ouwdjf99u

https://laanayabdrzak.github.io/2016/03/22/android-developement-best-practices.html

Android Shell commands
https://github.com/AndreSand/AndroidShell

Third party Libraries
https://guides.codepath.com/android/Must-Have-Libraries

Debug Library(Faceboook)
http://facebook.github.io/stetho/

RxJava
https://github.com/ReactiveX/RxAndroid
https://github.com/codepath/android_guides/wiki/RxJava
https://vimeo.com/144812843

Medium
Architecting Modern Mobile Applications
https://medium.com/@laanayabdrzak/architecting-modern-mobile-applications-bf896120f0c2#.yoe82u7v5

Wednesday, April 6, 2016

Kotlin Tutorials

Kotlin could be the future of Android Development :)

Todo App in Kotlin: https://lordraydenmk.github.io/2016/converting-a-todo-app-to-kotlin-part-1/

Book writer: http://antonioleiva.com/api-request-kotlin/
Book: https://leanpub.com/kotlin-for-android-developers/
ebook sample: file:///Users/andres/Downloads/kotlin-for-android-developers-sample.pdf

Testing:
*** read http://blog.wittchen.biz.pl/hello-kotlin/
It’s also worth mentioning that there is a project created in Kotlin by JetBrains called Spek which is a specification framework for the JVM and you can use it for writing unit tests in the JVM projects in order to get human readable output.

Build
Kotlin Meets Gradle I was lucky to attend this talk by the creator of Gradle.