我有一个viewpager循环多个片段并在viewpager中设置。每个片段都有一个带复选框的列表视图。单击列表中的任何一项时，它将通知所有片段，以便所有复选框保持未选中状态，并且仅检查单击的项目。
CreateGroupStep1
public class CreateGroupStep1 extends BaseActivity implements IGroup {
private TabLayout tabLayout;
private ViewPager viewPager;
private ImageView next_btn,back;
private int current_item_position;
private ViewPagerAdapter adapter;
private ArrayList<Interest> interestList;
ArrayList<String>al_sports;
ArrayList<String>al_list_collect;
private ArrayList<String>al_title;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.create_group_step1);
storeDataOfArrayList();
al_list_collect=new ArrayList<String>();
initViews();
}
public void initViews() {
viewPager = (ViewPager) findViewById(R.id.viewpager);
RelativeLayout back=(RelativeLayout) findViewById(R.id.back);
back=(RelativeLayout) findViewById(R.id.back);
back.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
next_btn=(ImageView) findViewById(R.id.next_btn);
next_btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Intent ii=new Intent(CreateGroupStep1.this,CreateGroupStep2.class);
//startActivity(ii);
Toast.makeText(CreateGroupStep1.this, "", Toast.LENGTH_SHORT).show();
}
});
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setTitle("");
setSupportActionBar(toolbar);
if (getSupportActionBar() != null) {
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
finish();
}
return super.onOptionsItemSelected(item);
}
private void setupViewPager(ViewPager viewPager) {
adapter = new ViewPagerAdapter(CreateGroupStep1.this.getSupportFragmentManager());
for (int i=0;i<al_title.size();i++)
{
adapter.addFragment(InterestFragmentForGroup.getInstance(al_sports),al_title.get(i));
viewPager.setAdapter(adapter);
}
viewPager.setAdapter(adapter);
viewPager.setOffscreenPageLimit(10);
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
public void onPageScrollStateChanged(int state) {
}
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
public void onPageSelected(int position) {
current_item_position = position;
// Toast.makeText(CreateGroupStep1.this, "scrolled", Toast.LENGTH_SHORT).show();
}
});
}
@Override
public void onClickedNextButton(final String message) {
next_btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(CreateGroupStep1.this,message, Toast.LENGTH_SHORT).show();
}
});
}
public static class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
public void storeDataOfArrayList()
{
saveData();
al_sports=new ArrayList<>();
al_sports.add("Baseball");
al_sports.add("Basketball");
al_sports.add("Bowling");
al_sports.add("Cricket");
al_sports.add("Football");
al_sports.add("Golf");
al_sports.add("Handball");
al_sports.add("Hockey");
al_sports.add("Jogging");
al_sports.add("Racquetball");
al_sports.add("Running");
al_sports.add("Skiing");
al_sports.add("Snowboarding");
al_sports.add("Soccer");
al_sports.add("Swimming");
al_sports.add("Tennis");
}
private void saveData()
{
al_title=new ArrayList<String>();
al_title.add("Sports");
al_title.add("LifeStyle");
al_title.add("Adventure");
al_title.add("Recreation");
al_title.add("The Arts");
al_title.add("College");
al_title.add("Sos");
al_title.add("Industry");
al_title.add("LocalBiz");
al_title.add("Corporate");
}
}
InterestAdapterForGroup
public class InterestAdapterForGroup extends RecyclerView.Adapter<InterestAdapterForGroup.MyViewHolder> implements IGroup {
public int selectedPosition = -1;
IGroup inter;
private LayoutInflater inflater;
private ArrayList<Interest> stList;
private Context mContext;
private ArrayList<Interest> checked_item = new ArrayList<>();
public InterestAdapterForGroup(Context context, ArrayList<Interest> al_list) {
this.mContext = context;
this.stList = al_list;
inflater = LayoutInflater.from(context);
inter = (IGroup) mContext;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.custom_ethnic, parent, false);
InterestAdapterForGroup.MyViewHolder holder = new InterestAdapterForGroup.MyViewHolder(view);
return holder;
}
@Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
final int pos = position;
final Interest interest = stList.get(position);
holder.title.setText(interest.getName());
if (position == selectedPosition) {
holder.chkSelected.setChecked(true);
} else {
holder.chkSelected.setChecked(false);
}
holder.chkSelected.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (buttonView.isPressed()) {
interest.isSelected = isChecked;
if (isChecked) {
checked_item.clear();
checked_item.add(interest);
selectedPosition = position;
} else {
checked_item.remove(interest);
selectedPosition = -1;
}
notifyDataSetChanged();
}
}
});
clickedItems();
}
public void clickedItems() {
if (checked_item.size() > 0) {
if (Constants.GLOBAL_ARRAY.size() > 0) {
Constants.GLOBAL_ARRAY.clear();
for (int i = 0; i < checked_item.size(); i++) {
Constants.GLOBAL_ARRAY.add(checked_item.get(i).getName());
}
}
}
ArrayList<String> al_name = new ArrayList<String>();
ArrayList<String> al_nam = new ArrayList<String>();
for (int i = 0; i < checked_item.size(); i++) {
al_name.add(checked_item.get(i).getEmailId());
}
for (int i = 0; i < checked_item.size(); i++) {
al_nam.add(checked_item.get(i).getName());
Constants.GLOBAL_ARRAY.add(checked_item.get(i).getName());
}
inter.onClickedNextButton(al_nam.toString());
}
public ArrayList<Interest> getCheckedItemList() {
return stList;
}
@Override
public int getItemCount() {
return stList.size();
}
@Override
public void onClickedNextButton(String message) {
}
class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public CheckBox chkSelected;
TextView title;
public MyViewHolder(View itemView) {
super(itemView);
title = (TextView) itemView.findViewById(R.id.txt_ethnic);
chkSelected = (CheckBox) itemView
.findViewById(R.id.chk);
}
@Override
public void onClick(View v) {
}
}
}
InterestFragmentForGroup
public class InterestFragmentForGroup extends BasePagerFragment implements IPager {
private ArrayList<String> interestList;
private ArrayList<Interest> interestListfunction;
public static Fragment getInstance(ArrayList<String> interestList){
Bundle bundle = new Bundle();
bundle.putSerializable("interestList",interestList);
InterestFragmentForGroup interestsFragment = new InterestFragmentForGroup();
interestsFragment.setArguments(bundle);
return interestsFragment;
}
public void getInterestList(){
interestList = (ArrayList<String>) getArguments().getSerializable("interestList");
}
private RecyclerView recyclerView;
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.sports_fragment, container, false);
initViews(rootView);
return rootView;
}
public void initViews(View view) {
recyclerView = (RecyclerView) view.findViewById(R.id.drawerList);
getInterestList();
setData();
}
public void setData() {
interestListfunction = new ArrayList<>();
for (int i = 0; i < interestList.size(); i++) {
Interest st = new Interest(interestList.get(i), interestList.get(i), false);
interestListfunction.add(st);
}
adapter2 = new InterestAdapterForGroup(getActivity(), interestListfunction);
recyclerView.addItemDecoration(new DividerDecoration(getActivity(), LinearLayoutManager.VERTICAL));
recyclerView.setAdapter(adapter2);
recyclerView.setLayoutManager(new LinearLayoutManager(recyclerView.getContext()));
}
}