モックアップ画像に示すように、フラグメントを表示するviewpagerでbottomSheetを実装しようとしています。
viewpager を格納する bottomSheetFragment は、childFragmentManager を使用して viewpager フラグメントを管理します。以下はコードです。
MainActivity.java
@Override
public void onClick(View view) {
BottomSheetFilterDialogFragment bottomSheetFilterDialogFragment = new BottomSheetFilterDialogFragment();
bottomSheetFilterDialogFragment.show(getSupportFragmentManager(), "bottomSheetFrag");
bottomSheetFilterDialogFragment.setPojoList(simplePojos, MainActivity.this);
}
});
BottomSheetFragment.java
public class BottomSheetFilterDialogFragment extends BottomSheetDialogFragment {
private static final String TAG = "BottomSheetFilt";
ViewPager pojo_pager;
PojoViewPagerAdapter pojoViewPagerAdapter;
ArrayList<SimplePojo> pojoList;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.frag_bottomsheet_filter, container, false);
Log.i(TAG, "onCreateView: started");
pojo_pager = (ViewPager) view.findViewById(R.id.pojoPager);
TabLayout pagerTabStrip = (TabLayout) view.findViewById(R.id.sliding_tabs);
pojo_pager.setAdapter(pojoViewPagerAdapter);
pagerTabStrip.setupWithViewPager(pojo_pager);
return view;
}
public void setPojoList(List<SimplePojo> pojoList, FragmentActivity activity) {
ArrayList<PojoChildFragment> pojoChildFragments = new ArrayList<>();
Log.i(TAG, "setPojoList: started");
for (int index = 0; index < pojoList.size(); index++) {
PojoChildFragment pojoChildFragment = new PojoChildFragment();
Bundle pojoBundle = new Bundle();
SimplePojo simplePojo = new SimplePojo();
simplePojo = pojoList.get(index);
pojoBundle.putSerializable("simplepojo", simplePojo);
pojoChildFragment.setArguments(pojoBundle);
pojoChildFragments.add(pojoChildFragment);
pojoViewPagerAdapter = new PojoViewPagerAdapter(getChildFragmentManager(), pojoChildFragments);
}
pojoViewPagerAdapter.notifyDataSetChanged();
}
class PojoViewPagerAdapter extends FragmentStatePagerAdapter {
private ArrayList<PojoChildFragment> fragments;
public PojoViewPagerAdapter(FragmentManager fm, ArrayList<PojoChildFragment> pojoFragmentList) {
super(fm);
if (fragments == null) {
fragments = new ArrayList<>();
}
this.fragments = pojoFragmentList;
}
@Override
public CharSequence getPageTitle(int position) {
return "" + position;
}
@Override
public Fragment getItem(int position) {
return this.fragments.get(position);
}
@Override
public int getCount() {
return fragments.size();
}
}
}
PojoChildFragment.java
public class PojoChildFragment extends Fragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment_pojo_child, container, false);
return rootView;
}
@Override
public void setArguments(Bundle args) {
super.setArguments(args);
SimplePojo pojo = (SimplePojo) args.getSerializable("simplepojo");
}
}