Apps 1 Image moving across screen. Slow performance. Why? :(

[RyanRitten]

Hey all,

I have been a game developer for almost 20 years (mostly flash/html5). I have a great idea for a new game but thought, if I was gunna make it, i'll do it right and write it in native code (ie. java for android).

I followed a very basic tutorial that made a background image scroll across the screen. (

)

I was super disappointed when i went to run it on my device (Galaxy Note 4) and the performance was not perfect. I expected it to run at a full 60 FPS without issues as all i'm doing is moving 1 image across the screen). What i saw was it kinda smooth but with the occasional stutter.

I don't want to take the time to build a full featured game when I can't even have 1 image scroll smoothly.

Am i missing something? Thanks!

 

[steve]

Assuming your code is good I would investigate hardware vs software acceleration.

Lots of things you can test/debug and force within the developer settings on your device. This is a hidden menu that you can enable by tapping multiple times on the build info in settings > about.

 

[joeynebula]

Take a look at the application using DDMS https://developer.android.com/studio/profile/ddms.html

In there you can look at object memory allocation and other data to see what is causing the slow performance. Should give you an idea of what is up.