Communication between one fragment to another

Question

I am new to fragments. I added two edit texts in first fragment and I want to send that edittext data to second fragment.

I am using a bundle, but its printing null in second fragment.

Can anyone tell me how to send data to other fragment?

First fragment

    nextt.setOnClickListener(new Button.OnClickListener() {
        @Override
        public void onClick(View _view) {
            int viewId = _view.getId();
            FragmentTransaction ft;
            switch (viewId) {
                case R.id.Button1:
                    FragmentManager fm = getFragmentManager();
                    ft = fm.beginTransaction();
                    SecondFrag secondFrag = new SecondFrag();
                    Bundle bundle = new Bundle();
                    bundle.putInt("deviceInst",viewId);
                    secondFrag.setArguments(bundle);
                    ft.replace(R.id.total_frame_content, secondFrag);
                    ft.addToBackStack(null);
                    ft.commit();
                    break;
            }
        }
    });

In second fragment

      @Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    View v = inflater.inflate(R.layout.second_new, container, false);
    String value = getArguments().getString("deviceInst");
    System.out.println("TTTT"+ value);

you have to read this https://developer.android.com/training/basics/fragments/communicating.html — Raghunandan, Jun 10 '16 at 06:43
@Ashwini Bhat..if i want to pass both string and int in that case? — Rajkumar, Jun 10 '16 at 06:45
putString() & getString(), putInt() & getInt() http://stackoverflow.com/questions/17063378/how-to-pass-bundle-from-fragment-to-fragment check this @pruthvi — Ashwini Bhat, Jun 10 '16 at 06:54

malmling · Accepted Answer · 2016-06-10T07:05:11.923

2

In your first fragment you pass an int as an argument.

bundle.putInt("deviceInst",viewId);

And then, in your second fragment you try to get that argument by using getArguments().getString("deviceInst")

which will fail, so to get the argument you pass you need to use getArguments().getInt("deviceInst")

For encapsulating the needed data, a good tip is to have a static newInstance() method in your fragments that requires data.

Here's a post about it.

https://plus.google.com/+AndroidDevelopers/posts/bCD7Zvd945d

edited Jun 10 '16 at 07:05

answered Jun 10 '16 at 06:50

malmling

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and for passing string? – Rajkumar Jun 10 '16 at 06:54
`bundle.putString("deviceInst",viewId);` – malmling Jun 10 '16 at 06:55
If i put viewid in passing string its showing error – Rajkumar Jun 10 '16 at 07:21
What's the error? If you want to put a string in the bundle, make sure the `viewId` is a string. – malmling Jun 10 '16 at 09:35

score 0 · Answer 2 · answered Jun 10 '16 at 06:42

0

You need to change like

 int value = getArguments().getInt("deviceInst");

instead of

 String value = getArguments().getString("deviceInst");

answered Jun 10 '16 at 06:42

Abhishek Patel

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score 0 · Answer 3 · answered Jun 10 '16 at 07:50

0

You will need to make the following changes in your code.

bundle.putString("deviceInst",editText.getText().toString());

Then in your second fragment you can get that argument by using

getArguments().getString("deviceInst")

Here editText is the instance of the edit text in the first fragment.

answered Jun 10 '16 at 07:50

Arpit Ratan

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Bro how to pass listview data? – Rajkumar Jun 10 '16 at 09:29
listView.setOnItemClickListener() and then onItemClick retrieve the data from your array list / data source you have provided. – Arpit Ratan Jun 10 '16 at 09:43

score 0 · Answer 4 · answered Jun 10 '16 at 08:13

As you have passed int in the bundle, you need to use getInt() in your receiver fragment.
For example:
 SecondFrag secondFrag = new SecondFrag();
                    Bundle bundle = new Bundle();
                    bundle.putInt("deviceInst",viewId);
                    secondFrag.setArguments(bundle);
getFragmentManager().beginTransaction().add(R.id.total_frame_content, secondFrag).commit();

In receiver fragment
  String value = getArguments().getInt("deviceInst");

Communication between one fragment to another

4 Answers4