onActivityResult not call in the Fragment

Question

The structure of the app is like this:

tabHost (in Activity) -> contains -> TabFragment(extend base container fragment)

1. The code in Activity:

tabHost.addTab(
                tabHost.newTabSpec("home").setIndicator("",
                        getResources().getDrawable(R.drawable.btn_home)),
                HomeFragment.class, null);

2. The code in HomeFragment (Notice that HomeFragment is not the actual function but a container like this, and it extend BaseContainerFragment):

public class HomeFragment extends BaseContainerFragment {

    public Home homeFrag;
    private boolean mIsViewInited;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.container_fragment, null);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        if (!mIsViewInited) {
            mIsViewInited = true;
            initView();
        }
    }

    private void initView() {
        homeFrag = new Home();
        replaceFragment(homeFrag, false);
    }

}

3. BaseContainerFragment

public class BaseContainerFragment extends Fragment {

    public void replaceFragment(Fragment fragment, boolean addToBackStack) {
        FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
        if (addToBackStack) {
            transaction.addToBackStack(null);
        }
        transaction.replace(R.id.container_framelayout, fragment);
        transaction.commit();
    }

    public boolean popFragment() {
        boolean isPop = false;
        if (getChildFragmentManager().getBackStackEntryCount() > 0) {
            isPop = true;
            getChildFragmentManager().popBackStack();
        }
        return isPop;
    }

}

4. In the Home (The actual content of the fragment)

UploadType fragment = new UploadType();
                    Bundle bundle = new Bundle();
                    bundle.putString("form_type", "request");
                    fragment.setArguments(bundle);
                    ((BaseContainerFragment)getParentFragment()).replaceFragment(fragment, true);

5. And in the UploadType , I call the camera activity but onActivityResult is only return in the main activity.

startActivityForResult(intent, REQUEST_CAMERA);

public void onActivityResult(int requestCode, int resultCode, Intent data) {
        Log.d("test1", "result2");
        super.onActivityResult(requestCode, resultCode, data);
}

How can I trigger the onActivityResult at UploadType? Thanks for help.

Answer 1

The reason why this doesn't work is because you are calling startActivityForResult() from within a nested fragment. Android is smart enough to route the result back to an Activity and even a Fragment, but not to a nested Fragment hence why you don't get the callback. (more information to why that doesn't work here or on stackoverflow)

Now in order to make it work I suggest you manually route the callback to the ChildFragment (=UploadType) in the ParentFragment (=BaseContainerFragment):

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    Fragment uploadType = getChildFragmentManager().findFragmentById(R.id.container_framelayout);

    if (uploadType != null) {
        uploadType.onActivityResult(requestCode, resultCode, data);
    }
    super.onActivityResult(requestCode, resultCode, data);
}

Answer 2

In my case, I've done by adding following code in my MainActivity.java

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    for (Fragment fragment : getSupportFragmentManager().getFragments()) {
        fragment.onActivityResult(requestCode, resultCode, data);
    }
}

Answer 3

In your Activity Override onActivityForResult() like this

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
    }

Now in your fragment u can get the activity result inside this

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
      Log.d("test1", "result2");
    }

Make sure when your are calling start ActivityForResult in your frragment it should be like this

startActivityForResult(intent, REQUEST_CAMERA);

Answer 4

TabActivity->ActivityA->FragmentB, it's not work.

use a bad bad bad way:

ActivityA.java

public void onSelectSomething(){

    ...

    startActivityForResult(intent, 22222);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (mFragment != null) {
        mFragment.onActivityResult(requestCode, resultCode, data);
    }
}

FragmentB.java

if(getActivity() instanceof ActivityA) {
    ((RepairerListActivity)getActivity()).onSelectSomething();
} 


@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == 22222) {
        // do things
    }
}   

Answer 5

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    // Loop through all child fragments of the activity
    for (Fragment fragment : getSupportFragmentManager().getFragments()) {

        // check if the current fragment is YourFragment
        if (fragment instanceof YourFragment ) {
            fragment.onActivityResult(requestCode, resultCode, data);
        }

    }
}