Getting Started with Android Development - Android Developer Resources

Android Developer Blog
https://android-developers.googleblog.com/

Android Development Glossary
https://developers.google.com/android/for-all/vocab-words/?hl=en

Here's a story how the Google I/O 2014 app was designed:
https://android-developers.googleblog.com/2014/08/material-design-in-2014-google-io-app.html

Android Developers on Google Plus
https://plus.google.com/+AndroidDevelopers

Follow Android Developers on Twitter
https://twitter.com/AndroidDev

Android Developers on Youtube
https://www.youtube.com/user/GoogleDevelopers


Popular blogs:
https://blog.stylingandroid.com/
https://chris.banes.me/
http://fragmentedpodcast.com/
https://plus.google.com/+KirillGrouchnikov

Layout https://developer.android.com/guide/topics/resources/layout-resource.html

LinearLayout https://developer.android.com/reference/android/widget/LinearLayout.LayoutParams.html

LinearLayout
https://developer.android.com/reference/android/widget/LinearLayout.html

Layout:

• android:gravity="center_horizontal" centering a text in the screen or within a parent view
• android:padding ="4dp" increase content size
• android:layout_margin ="4dp" increase content surrounding size

JAVA core timeline currently JAVA 8, JAVA 9 for  2018 JAVA 10 2019

Using default color @android:color/white

Display images on Android: scaleType including center, center crop (expand image uniformly maintains ratio). ImageView attributes. match_parent to expand to fill the screen. wrap_content will not expand to screen size.