Pass object data between fragments and activity in android

Question

I want to pass a complex object between activity and fragments as well as fragments and fragments. Currently, the main activity create a fragment input object and set that as a

Answer 1

In this case you can use static holder (it's a bit similar to a singleton pattern).

Create a new class

public class Holder
{
    private static FragmentInput input = null;

    public static void setInput(FragmentInput value) { this.input = value; }
    public static FragmentInput getInput() { return input; }
}

In your main activity, after you create your new FragmentInput object hold it on the Holder

Holder.setInput(input);

And you can access it anywhere, simply call

FragmentInput myInput = Holder.getInput();