Send data between activities with custom variable

Question

How can I send data, using a custom variable type I created, between activities? I have checked and the "putExtra/putExtras" option does not allow me to send my custom made variable, it only allows string/boolean/int/....

Answer 1

Use a Bundle and make your custom variable Serializable.

Bundle bundle = new Bundle();
bundle.putSerializable("key", CustomVariableObject());
intent.putExtras(bundle);

Answer 2

you need to serialize your object

intent.putExtra("MyData", data);

getIntent().getSerializableExtra("MyData");

you can see more informations in this post

How to pass an object from one activity to another on Android