Efficiency issue with android games

Hi community!

I have made a 2D game for android and it is running fluently in the unity game view. But on my Device (Galaxy Note 1) it is a little bit sluggy. So I have to boost the performance of the game and I am wondering where to start. So this should be a general discussion about the Efficiency issue with android games. My Questions are:

1. Is it more important to check the code for expensive methods (like Gameobject.Find()) or to decrease the resolution and size of the Sprites used in the game. What is heavier for an android device?

2. What is the best practise I mean the best tactic to boost the efficiency of a completed game project? Changing things could be problematic for the funcionality you know.

 

You could use a profiler to see what takes the most juice from your device.
Anyway, I believe expensive methods are more important in terms of performance, try to see if you can replace some of them in the Update or FixedUpdate calls into the Start so that it calculates it at the beginning only.
Use mobile shaders and see if you can replace some meshes with quads, be careful with your alpha settings and reduce the camera sight distance a bit

 

Thanks for these cool advices. What is a profiler? Where can I get it?

 

The profiler gives you some stats about processing time spent, memory usage, draw calls, etc.
It helps you see if your game runs slow because of CPU or GPU

If you have Unity Pro check this: http://docs.unity3d.com/Manual/Profiler.html

if not, then this: http://docs.unity3d.com/Manual/iphone-InternalProfiler.html

Many things were written for iOS but they are very similar (and work) for Android..