phedon rousou phedon rousou - 4 months ago 27
Android Question

How to pass data from a fragment to a dialogFragment

I know that this was asked before, but I dont quite understand how to implement it.
I have a fragment "myFragment" in which I create an object of a "myDialogueFragment".
I want to pass some value to the myDialogueFragment when I invoke it from the myFragment.
I have an integer num, that I want to pass to the myDialogueFragment and store that number in a local database along with some other info from the myDialogueFragment.

I might be mistaken, but all the code I have seen is about sending data from the myDialogueFragment back to the myFragment which is not what I really want.

static MyDialogFragment newInstance(int num) {

MyDialogFragment f = new MyDialogFragment();

// Supply num input as an argument.
Bundle args = new Bundle();
args.putInt("num", num);
f.setArguments(args);

return f;
}

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNum = getArguments().getInt("num");
...
}


So, this code gets the arguments within the myFragment onCreate() method. I want to sent the arguments within the myFragment() and receive them in the myDialogueFragment.

How can I achieve that?

Answer

What you need is to setArguments on the fragment as follows:

Bundle args = new Bundle();
args.putString("key", "value");
DialogFragment newFragment = new YourDialogFragment();  
newFragment.setArguments(args);
newFragment.show(getSupportFragmentManager(), "TAG");

All you have to do now, is catch those arguments in your fragment and use them...

AND IN THE DIALOG FRAGMENT YOU READ IT LIKE THIS...

Bundle mArgs = getArguments();
String myValue = mArgs.getString("keyUsed to send it...");

Regards!