Question

I’m creating an app that has five activities. I have one class with functions and variables that are used in all five activities. I have created a local variable in each activity that initializes the class like this;

localclass = new globalclass(getResouces());

I’m new to android/java development and was wondering about memoryfootprints and such when I tried something. In the first actvity that gets started, localclass get set as formentioned. I then tried to access this variable from the other activities and did this successfully like this in activity second, third and so on;

localclass = com.firstactivity.localclass;

One of the variables the I use are a reference to application resources. In acticity second on onwards I dont get resources like this;

res = getResources();

but like this;

res = com.firstactivity.localclass.res;

This works as long as variables are static. I also access functions in globalclass the same way.

Is this bad pratice?

Answer 1

Generally using static class as a variable holder really isn’t a good practice. Try passing variables you need in other activities by intents instead. See this as it explains more why this is not a good approach.