how to send data from one fragment to another fragment in android?

Question

Hello I make a simple tab view using pager and fragment . So I have two tabs in my view .In one tab I have list view in which each row have textview and favourite

Answer 1

There are few ways to do it.

The most basic and recommended one is define an interface in your sending Fragment, then make the container Activity implement that interface, so you can send data from your Fragment to the Activity. From that you can send data to your receiving Fragment.
Take a look at this official tutorial from Google:
http://developer.android.com/training/basics/fragments/communicating.html

Another way is using Bus event style, it's much cooler than the previous one. You can do so with Otto. Subscribe in your receiving Fragment, then just send any data you want from your sending Fragment, no need to communicate or write lengthy interfaces.

Answer 2

Create an interface in your fragment and implement that in your corresponding activity.

You can refer this link: https://developer.android.com/training/basics/fragments/communicating.html

Answer 3

Suppose you are sending data from FragmentA to FragmentB, then the best practice is to use Interfaces and then communicate between fragment via the container activity. Below is a small snippet that will provide with the skeleton of what i am trying to say:

Step-1: In your FragmentA define an Interface and override onAttach() method to make it mandatory for your container activity to implement the interface and provide body to its method.

    public interface MyInterfaceListener{
      public void myMethod(yourParameters)//this method will hold parameters which you can then use in your container activity to send it to FragmentB 
}

private MyInterfaceListener listener;
@Override
public void onAttach(Activity activity) {
  super.onAttach(activity);
  if (activity instanceof MyInterfaceListener) {
    listener = (MyInterfaceListener) activity;// This makes sure that the container activity has implemented
    // the callback interface. If not, it throws an exception 
  } else {
    throw new ClassCastException(activity.toString()
        + " must implemenet MyListFragment.OnItemSelectedListener");
  }
}

Now, in your FragmentA you can pass value to myMethod() like: if (listener!=null) { listener.myMethod(yourArguments); }

Step-2: Now, In your container activity implement the callback Interface

public class MyActivity extends Activity implements MyInterfaceListener{
        @Override
         public void myMethod(yourParameters) {
              //do your stuff here. do whatever you want to do with the //parameter list which is nothing but data from FragmentA.
                FragmentB fragment = (FragmentB) getSupportFragmentManager().findFragmentById(R.id.yourFragmentB);
                fragment.methodInFragmentB(sendDataAsArguments);// calling a method in FragmentB and and sending data as arguments. 
        }
}

Step-3: In FragmentB have a method say for example methodInFragmentB(yourParameters)

    public void methodInFragmentB(yourParameters){
      //do whatever you want to do with the data..... 
}

I hope the above description helps. Thanks.