Android Tech Blog

I'm trying to use the rng from java when I click a button but each time I click it the program … Read more Attempt To Invoke Virtual Method 'int Java.util.random.nextint(int)' On A Null Object Reference [android]

I have set up a technique for shuffling Strings. int Random = (int) (Math.random() *4); I am … Read more Shuffling An Array Of Strings

I am getting an error in my project with eclipse: Cannot refer to the non-final local variable but… Read more Cannot Refer To The Non-final Local Variable Button Defined In An Enclosing Scope, Random Method Error

Users can purchase a 'Pro' version of my app. When they do, I store and verify their purcha… Read more Securerandom Provider "crypto" Unavailable In Android N For Deterministially Generating A Key

I'm Beginner. I want change my image on imageview in Android and that images are periodically c… Read more Thread Random Change Image On Imageview

I have a question about how to make a button randomly move every second. The black tiles are a butt… Read more How To Make A Button Randomly Move