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I have a simple Activity with TabLayout, ViewPager and 2 Fragments in it. Here's my Activity:
public class ManagementCompanyOverviewActivity extends BaseActivity implements ManagementCompanyOverviewView {
private ManagementCompanyVPAdapter mVPAdapter;
private TabLayout mTLContent;
private ViewPager mVPContent;
@InjectPresenter
ManagementCompanyPresenter mPresenter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_management_company);
mVPAdapter = new ManagementCompanyVPAdapter(getSupportFragmentManager());
mTLContent = (TabLayout) findViewById(R.id.tl_company_content);
mVPContent = (ViewPager) findViewById(R.id.vp_company_content);
mVPContent.setAdapter(mVPAdapter);
mTLContent.setupWithViewPager(mVPContent);
}
@Override
public void onAboutCompanyInfoReceivedFromServer(AboutCompanyViewModel model) {
}
Activity has a Presenter (I'm using Moxy), Presenter sends request, gets answer, creates JavaObject (view model) and with getViewState() passes this model to activity. I need to pass this model from Activity to one of my Fragments.
Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_about_company, container, false);
mTVName = (TextView) view.findViewById(R.id.tv_company_name);
mTVDirector = (TextView) view.findViewById(R.id.tv_company_director);
mTVWebsite = (TextView) view.findViewById(R.id.tv_company_website);
mTVEmail = (TextView) view.findViewById(R.id.tv_company_email);
mTVPhone = (TextView) view.findViewById(R.id.tv_company_phone);
mTVSchedule = (TextView) view.findViewById(R.id.tv_company_schedule);
mTVAddress = (TextView) view.findViewById(R.id.tv_company_address);
return view;
}
This fragment has some TextViews to show the info from my model. How to pass this model? If I know it right I should create a listener, but how? I don't completely understand how to work with em.
553
The updateFragmetData method will be called in the current selected viewpager item fragment. You can also add a tag parameter to updateFragmetData so that you can be sure the right fragment instance is called. If required you can call isVisible in updateFragmetData implementation to make sure the fragment is visible.
Therefore, in order to pass your data to the Fragment being created, you should use the setArguments() method. This methods gets a bundle, which you store your data in, and stores the Bundle in the arguments. Subsequently, this Bundle can then be retrieved in onCreate() and onCreateView() call backs of the Fragment.
To pass info to a fragment , you setArguments when you create it, and you can retrieve this argument later on the method onCreate or onCreateView of your fragment. Then inside the fragment on the method onCreate or onCreateView you can retrieve the arguments like this: Bundle args = getArguments(); int index = args.
When working with child fragments, your parent fragment and its child fragments might need to share data with each other. To share data between these fragments, use the parent fragment as the ViewModel scope.
Okay, I did this.
1 step: I created public interface in my Activity and setter for it:
private OnAboutDataReceivedListener mAboutDataListener;
public interface OnAboutDataReceivedListener {
void onDataReceived(AboutCompanyViewModel model);
}
public void setAboutDataListener(OnAboutDataReceivedListener listener) {
this.mAboutDataListener = listener;
}
2 step: I implemented this interface in my Fragment and set listener:
public class AboutCompanyFragment extends BaseFragment implements ManagementCompanyOverviewActivity.OnAboutDataReceivedListener
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mActivity = (ManagementCompanyOverviewActivity) getActivity();
mActivity.setAboutDataListener(this);
}
3 step: I overrided interface's method:
@Override
public void onDataReceived(AboutCompanyViewModel model) {
mPBName.setVisibility(View.INVISIBLE);
mPBDirector.setVisibility(View.INVISIBLE);
mPBWebsite.setVisibility(View.INVISIBLE);
mPBEmail.setVisibility(View.INVISIBLE);
mPBPhone.setVisibility(View.INVISIBLE);
mPBSchedule.setVisibility(View.INVISIBLE);
mPBAddress.setVisibility(View.INVISIBLE);
mTVName.setVisibility(View.VISIBLE);
mTVDirector.setVisibility(View.VISIBLE);
mTVWebsite.setVisibility(View.VISIBLE);
mTVEmail.setVisibility(View.VISIBLE);
mTVPhone.setVisibility(View.VISIBLE);
mTVSchedule.setVisibility(View.VISIBLE);
mTVAddress.setVisibility(View.VISIBLE);
mTVName.setText(model.getCompanyName());
mTVDirector.setText(model.getDirectorName());
mTVWebsite.setText(model.getWebsite());
mTVEmail.setText(model.getEmail());
mTVPhone.setText(model.getPhone());
mTVSchedule.setText(model.getWorkTime());
mTVAddress.setText(model.getAddress());
}
That's it.
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