How to get the object of fragmentA from fragmentB in a Activity

Question

What i have

I have an activity
MainActivity.java here in this activity I have a fragment(MainFragment.java)
In MainFragment.java I have two child fragments ChildOne.java and ChildTwo.java
I have a editText in ChildOne.java

What I am trying to do:

I need to get the value in the editText of ChildOne.java from ChildTwo.java
how to achieve this !

why don't you use that `EditText` in your activity? what do you want to do with that? — Mohammad Rahchamani, Nov 27 '14 at 06:24
are you showing both the child fragment at the same time? if not this can be done — Pankaj Nimgade, Nov 27 '14 at 06:28
1- define one public method in childTwo,2- define an interface in childOne , 3- implement that in your activity , 4- add watch listener for your editText on childOne , 5- in that call your interface method and in that method call your public method on childTwo — Shayan Pourvatan, Nov 27 '14 at 06:30

score 0 · Answer 1 · answered Nov 27 '14 at 06:29

You can achieve this in multiple ways, but I'll give you one supposing that both Fragments are displayed at the same time.

In your ChildTwo use getParentFragment to get MainFragment.

MainFragment parent = (MainFragment) getParentFragment();
String edit_text_value = parent.getChildOneText();

In your MainFragment you need a reference object to your ChildOne fragment.

public String getChildOneText()
{
     return mFirstFragment.getEditTextValue();
}

Finally in your ChildOne fragment create a method to return your EditText.

public String getEditTextValue()
{
   return my_edit.getText().toString();
}

Hope it helps!

score 0 · Answer 2 · edited May 23 '17 at 12:05

You may create one function in mainActivity and a variable that holds the value in there. And call that function when you want to save the data of editText, And can create a function to get the data in MainActivity as well. Call those functions like this -

((Home) getActivity()).shareData("example string"); ((Home) getActivity()).receiveData("example string");

May check this answer and this one

How to get the object of fragmentA from fragmentB in a Activity

What i have

What I am trying to do:

2 Answers2