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package se.leap.bitmaskclient.providersetup.fragments;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.viewpager2.widget.ViewPager2;
import se.leap.bitmaskclient.providersetup.activities.SetupActivityCallback;
public class BaseSetupFragment extends Fragment {
public static String EXTRA_POSITION = "EXTRA_POSITION";
private boolean callFragmentSelected = false;
SetupActivityCallback setupActivityCallback;
private final ViewPager2.OnPageChangeCallback viewPagerCallback = new ViewPager2.OnPageChangeCallback() {
@Override
public void onPageSelected(int position) {
super.onPageSelected(position);
if (position == BaseSetupFragment.this.position) {
handleCallFragmentSelected();
} else {
callFragmentSelected = false;
}
}
};
private int position;
public static Bundle initBundle(int pos) {
Bundle bundle = new Bundle();
bundle.putInt(EXTRA_POSITION, pos);
return bundle;
}
public BaseSetupFragment() {
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.position = getArguments().getInt(EXTRA_POSITION);
}
@Override
public void onAttach(@NonNull Context context) {
super.onAttach(context);
if (getActivity() instanceof SetupActivityCallback) {
setupActivityCallback = (SetupActivityCallback) getActivity();
} else {
throw new IllegalStateException("These setup fragments are closely coupled to SetupActivityCallback interface. Activities instantiating them are required to implement the interface");
}
}
@Override
public void onSaveInstanceState(@NonNull Bundle outState) {
outState.putInt(EXTRA_POSITION, position);
super.onSaveInstanceState(outState);
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
setupActivityCallback.registerOnPageChangeCallback(viewPagerCallback);
if (setupActivityCallback.getCurrentPosition() == position) {
handleCallFragmentSelected();
}
}
private void handleCallFragmentSelected() {
if (!callFragmentSelected) {
callFragmentSelected = true;
onFragmentSelected();
}
}
@Override
public void onDestroyView() {
setupActivityCallback.removeOnPageChangeCallback(viewPagerCallback);
callFragmentSelected = false;
super.onDestroyView();
}
@Override
public void onDetach() {
setupActivityCallback = null;
super.onDetach();
}
public void onFragmentSelected() {
}
}
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