将数据从活动传递到另一个片段

Question

From the activity, I open the fragment "DevicesFragment" as below. How do I transfer data from activity to fragment before starting it? Thanks for help !

getSupportFragmentManager().beginTransaction().add(R.id.fragment, new DevicesFragment(), "devices").commit();

Answer 1

From Activity you send data with intent as:

Bundle bundle = new Bundle();
bundle.putString("text", "From Activity");
// set Fragmentclass Arguments
DevicesFragment devices = new DevicesFragment();
devices.setArguments(bundle);
getSupportFragmentManager().beginTransaction().add(R.id.fragment, devices, "devices").commit();

and in DevicesFragment onCreateView method:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
    Bundle savedInstanceState) {
    Bundle bundle = getArguments();
    if(bundle != null) {
        String value = bundle.getString("text");  
    }  
    return inflater.inflate(R.layout.fragment, container, false);
}

Answer 2

You can send data from one activity to another fragment using Bundles as below:

Bundle bundle = new Bundle();
bundle.putString("key", "your data");
// set Fragmentclass Arguments
Fragmentclass fragobj = new Fragmentclass();
fragobj.setArguments(bundle);

and fragment onCreate method:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    String strtext = getArguments().getString("key");    
    return inflater.inflate(R.layout.fragment, container, false);
}