Question

I have to transfer objects between activities.
Objects are with complex structure.
I’m not sure what to do: to add bundle to intent or to store data in application class.
Which method is better /performance and garbage produced/?

Answer 1

The safest method is to bundle the data to pass with the Intent. This will be re-usable and avoid cluttering the global object space of the application. However this method is slightly more time consuming in that you have to implement Serializable for your custom types or create a custom Parcelable.