expandableListview 不与导航视图中的其他菜单项一起滚动

Question

实际上我在导航视图中实现可扩展列表视图时遇到了问题，可扩展列表视图工作得很好但是当我尝试滚动它时，背景菜单项确实滚动但不是可扩展列表视图，有人请看一下代码并帮助我。

ExpandableListAdapter.java

public class ExpandableListAdapter extends BaseExpandableListAdapter{

private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;

public ExpandableListAdapter(Context context, List<String> listDataHeader,
                         HashMap<String, List<String>> listChildData) {
    this._context = context;
    this._listDataHeader = listDataHeader;
    this._listDataChild = listChildData;
}

@Override
public Object getChild(int groupPosition, int childPosititon) {
    return this._listDataChild.get(this._listDataHeader.get(groupPosition))
            .get(childPosititon);
}

@Override
public long getChildId(int groupPosition, int childPosition) {
    return childPosition;
}

@Override
public View getChildView(int groupPosition, final int childPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {

    final String childText = (String) getChild(groupPosition, childPosition);

    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) this._context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.list_group_child, null);
    }

    TextView txtListChild = (TextView) convertView
            .findViewById(R.id.lblListItem);

    txtListChild.setText(childText);
    return convertView;
}

@Override
public int getChildrenCount(int groupPosition) {
    return this._listDataChild.get(this._listDataHeader.get(groupPosition))
            .size();
}

@Override
public Object getGroup(int groupPosition) {
    return this._listDataHeader.get(groupPosition);
}

@Override
public int getGroupCount() {
    return this._listDataHeader.size();
}

@Override
public long getGroupId(int groupPosition) {
    return groupPosition;
}

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
                         View convertView, ViewGroup parent) {
    String headerTitle = (String) getGroup(groupPosition);
    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) this._context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.list_group_header, null);
    }

    TextView lblListHeader = (TextView) convertView
            .findViewById(R.id.lblListHeader);
    lblListHeader.setTypeface(null, Typeface.BOLD);
    lblListHeader.setText(headerTitle);

    return convertView;
}

@Override
public boolean hasStableIds() {
    return false;
}

@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
    return true;
}
  }

我的mainActivity.javaclass

public class MainActivity extends BaseAppCompatActivity
    implements NavigationView.OnNavigationItemSelectedListener {

@BindView(R.id.txt_heading_name_ma)
TextView txt_heading_name_ma;

@BindView(R.id.img_heading_ma)
ImageView img_heading_ma;

@BindView(R.id.navigation_MA)
BottomNavigationView navigation_MA;

@BindView(R.id.drawer_layout)
DrawerLayout drawer;

private View header;
private TextView txt_heading_mail, txt_heading_name;
private ImageView imageView;
private ExpandableListView expListView;
ExpandableListAdapter listAdapter;
private MainActivity activity;
private ShortingProductResponse shortingProductResponse;
ArrayList<String> listDataHeader;
HashMap<String, List<String>> listDataChild;



@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Fabric.with(this, new Crashlytics());
    setContentView(R.layout.activity_main);
    ButterKnife.bind(this);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    enableExpandableList();



    ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
            this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    drawer.addDrawerListener(toggle);
    toggle.syncState();



    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        toggle.getDrawerArrowDrawable().setColor(getColor(R.color.colorPrimary));
    } else {
        toggle.getDrawerArrowDrawable().setColor(getResources().getColor(R.color.colorPrimary));
    }

    NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
    navigationView.setNavigationItemSelectedListener(this);
    expListView=(ExpandableListView)navigationView.findViewById(R.id.navList);

    header = navigationView.getHeaderView(0);

    header.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            replaceFragment(FragmentNames.MyAccountFragment, false, null, false, false);
            navigationDrawClose();
        }
    });

    txt_heading_mail = header.findViewById(R.id.txt_heading_mail);
    txt_heading_name = header.findViewById(R.id.txt_heading_name);
    imageView = header.findViewById(R.id.imageView);

    replaceFragment(FragmentNames.MainFragment, false, null, true, true);
}



private void enableExpandableList() {
    listDataHeader = new ArrayList<String>();
    listDataChild = new HashMap<String, List<String>>();
    expListView = (ExpandableListView) findViewById(R.id.navList);

    prepareListData(listDataHeader, listDataChild);
    listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);

    expListView.setAdapter(listAdapter);

    expListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {

        @Override
        public boolean onGroupClick(ExpandableListView parent, View v,
                                    int groupPosition, long id) {

            return false;
        }
    });
    // Listview Group expanded listener
    expListView.setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() {

        @Override
        public void onGroupExpand(int groupPosition) {
            Toast.makeText(getApplicationContext(),
                    listDataHeader.get(groupPosition) + " Expanded",
                    Toast.LENGTH_SHORT).show();
        }
    });


    expListView.setOnGroupCollapseListener(new ExpandableListView.OnGroupCollapseListener() {

        @Override
        public void onGroupCollapse(int groupPosition) {
            Toast.makeText(getApplicationContext(),
                    listDataHeader.get(groupPosition) + " Collapsed",
                    Toast.LENGTH_SHORT).show();

        }
    });


    expListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {

        @Override
        public boolean onChildClick(ExpandableListView parent, View v,
                                    int groupPosition, int childPosition, long id) {

            Toast.makeText(
                    getApplicationContext(),
                    listDataHeader.get(groupPosition)
                            + " : "
                            + listDataChild.get(
                            listDataHeader.get(groupPosition)).get(
                            childPosition), Toast.LENGTH_SHORT)
                    .show();
            return false;
        }
    });

}

private void prepareListData(List<String> listDataHeader, Map<String,
            List<String>> listDataChild) {



    listDataHeader.add("Terms and Conditions");



    List<String> top = new ArrayList<String>();
    top.add("Privacy");
    top.add("Security");
    top.add("Terms");




    listDataChild.put(listDataHeader.get(0), top); 

}





private void navigationDrawClose() {
    if (drawer != null)
        drawer.closeDrawer(GravityCompat.START);
}

@Override
protected void onStart() {
    super.onStart();
    initializeView();
}

@Override
public void onBackPressed() {

    if (drawer.isDrawerOpen(GravityCompat.START)) {
        drawer.closeDrawer(GravityCompat.START);
    } else {
        super.onBackPressed();
    }
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {

    int id = item.getItemId();

    switch (item.getItemId()) {
        case R.id.nav_wishlist_main:
            if (isValidUser())
                startWishListActivity();
            Log.e(ApplicationContext.TAG, "Done");
            return true;
        case R.id.nav_cart_main:
            startCarfInfoActivity();

            Log.e(ApplicationContext.TAG, "Done");
            return true;
    }

    return super.onOptionsItemSelected(item);
}

private void startWishListActivity() {
    startActivity(new Intent(this, WishlistActivity.class));
}

private void startCarfInfoActivity() {
    startActivity(new Intent(this, CartInfoActivity.class));
}

@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
    // Handle navigation view item clicks here.
    switch (item.getItemId()) {
        case R.id.nav_home:
            replaceFragment(FragmentNames.MainFragment, true, null, true, true);
            break;
        case R.id.nav_shop_now:
            replaceFragment(FragmentNames.ShopNowFragment, true, null, false, false);
            break;
        case R.id.nav_brands:
            replaceFragment(FragmentNames.BrandsFragment, true, null, false, false);
            break;
        case R.id.nav_holidays:
            replaceFragment(FragmentNames.HolidaysFragment, true, null, false, false);
            break;
        case R.id.nav_search_products:
            replaceFragment(FragmentNames.MyAccountFragment, true, null, false, false);
            break;
        case R.id.nav_new_arrival:
            Log.e(ApplicationContext.TAG, "Done");
            break;
        case R.id.nav_wishlist:
            Log.e(ApplicationContext.TAG, "Done");
            break;
        case R.id.nav_cart:
            Log.e(ApplicationContext.TAG, "Done");
            break;
        case R.id.nav_my_orders:
            replaceFragment(FragmentNames.MyOrdersFragment, false, null, false, false);
            Log.e(ApplicationContext.TAG, "Done");
            break;
        case R.id.nav_abouts_us:
            Log.e(ApplicationContext.TAG, "Done");
            break;
        case R.id.nav_contacts_us:
            Log.e(ApplicationContext.TAG, "Done");
            break;
        case R.id.nav_testimonial:
            Log.e(ApplicationContext.TAG, "Done");
            break;
        case R.id.nav_logout:
            Logout();
            Log.e(ApplicationContext.TAG, "Done");
            break;
    }
    navigationDrawClose();
    return true;
}

private FirebaseAuth mAuth;
private GoogleSignInClient gAuth;

private void Logout() {
    PrefSetup.getInstance().clearPrefSetup();
    mAuth = FirebaseAuth.getInstance();
    mAuth.signOut();
    GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN).requestIdToken(getString(R.string.default_web_client_id)).requestEmail().build();
    gAuth = GoogleSignIn.getClient(this, gso);
    gAuth.signOut();
    startLoginActivity();
}

private void startLoginActivity() {
    startActivity(new Intent(this, LoginUserActivity.class));
    finish();
}

@Override
public void initializeView() {
    super.initializeView();
    navigation_MA.setOnNavigationItemSelectedListener(item -> {
        switch (item.getItemId()) {
            case R.id.bottom_nav_home:
                replaceFragment(FragmentNames.MainFragment, false, null, true, true);
                return true;
            case R.id.bottom_nav_shop_now:
                replaceFragment(FragmentNames.ShopNowFragment, false, null, false, false);
                return true;
            case R.id.bottom_nav_brands:
                replaceFragment(FragmentNames.BrandsFragment, false, null, false, false);
                return true;
            case R.id.bottom_nav_holidays:
                replaceFragment(FragmentNames.HolidaysFragment, false, null, false, false);
                return true;
            case R.id.bottom_nav_my_account:
                replaceFragment(FragmentNames.MyAccountFragment, false, null, false, false);
                return true;
        }
        return false;
    });

    setNavigationHeader();
}

private void setBottomNavigationItemSelected(int position) {
    switch (position) {
        case 0:
            navigation_MA.setSelectedItemId(R.id.bottom_nav_home);
            break;
        case 1:
            navigation_MA.setSelectedItemId(R.id.bottom_nav_shop_now);
            break;
        case 2:
            navigation_MA.setSelectedItemId(R.id.bottom_nav_brands);
            break;
        case 3:
            navigation_MA.setSelectedItemId(R.id.bottom_nav_holidays);
            break;
        case 4:
            navigation_MA.setSelectedItemId(R.id.bottom_nav_my_account);
            break;
    }
}

private BaseFragment fragment;

public void replaceFragment(FragmentNames fragmentName, boolean isBottomSelected, Bundle bundle, boolean isFirst, boolean clearBackStack) {
    Utilities.getInstance().hideKeyboard(this);
    FragmentManager fm = getSupportFragmentManager();
    FragmentTransaction ft = fm.beginTransaction();
    if (clearBackStack) {
        fm.popBackStack(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
    }

    switch (fragmentName) {
        case MainFragment:
            if (ApplicationContext.getInstance().getLiveFragment() != null && ApplicationContext.getInstance().getLiveFragment() instanceof MainFragment)
                return;
            fragment = new MainFragment();
            if (isBottomSelected)
                setBottomNavigationItemSelected(0);
            break;
        case ShopNowFragment:
            if (ApplicationContext.getInstance().getLiveFragment() != null && ApplicationContext.getInstance().getLiveFragment() instanceof ShopNowFragment)
                return;
            fragment = new ShopNowFragment();
            if (isBottomSelected)
                setBottomNavigationItemSelected(1);
            break;
        case BrandsFragment:
            if (ApplicationContext.getInstance().getLiveFragment() != null && ApplicationContext.getInstance().getLiveFragment() instanceof BrandsFragment)
                return;
            fragment = new BrandsFragment();
            if (isBottomSelected)
                setBottomNavigationItemSelected(2);
            break;
        case HolidaysFragment:
            if (ApplicationContext.getInstance().getLiveFragment() != null && ApplicationContext.getInstance().getLiveFragment() instanceof HolidaysFragment)
                return;
            fragment = new HolidaysFragment();
            if (isBottomSelected)
                setBottomNavigationItemSelected(3);
            break;
        case MyAccountFragment:
            if (ApplicationContext.getInstance().getLiveFragment() != null && ApplicationContext.getInstance().getLiveFragment() instanceof MyAccountFragment)
                return;
            fragment = new MyAccountFragment();
            if (isBottomSelected)
                setBottomNavigationItemSelected(4);
            break;
        case ProductListFragment:
            if (ApplicationContext.getInstance().getLiveFragment() != null && ApplicationContext.getInstance().getLiveFragment() instanceof ProductListFragment)
                return;
            fragment = new ProductListFragment();
            break;
        case CartInfoFragment:
            if (ApplicationContext.getInstance().getLiveFragment() != null && ApplicationContext.getInstance().getLiveFragment() instanceof CartInfoFragment)
                return;
            fragment = new CartInfoFragment();
            break;
        case MyOrdersFragment:
            if (ApplicationContext.getInstance().getLiveFragment() != null && ApplicationContext.getInstance().getLiveFragment() instanceof MyOrdersFragment)
                return;
            fragment = new MyOrdersFragment();
            break;
    }
    // if user passes the @bundle in not null, then can be added to the fragment
    if (bundle != null) {
        try {
            fragment.setArguments(bundle);
        } catch (Exception e) {
            System.out.println(fragment.getArguments());  // print exception
        }
    }


    if (!isFirst) {
        ft.addToBackStack(fragment.getClass().getName() + "");
    } else {


    }

    fragment.fragmentType = fragmentName.getValue();

    ft.replace(R.id.rl_workSpace, fragment);
    ft.commit();

}

public void setNavigationHeader(String imagePath, String userName, String mailId) {
    if (imagePath.length() >= 1)
        ApplicationContext.getInstance().loadImage(imagePath, imageView, null, R.drawable.no_image);
    if (userName.length() >= 1)
        txt_heading_name.setText(userName);
    if (mailId.length() >= 1)
        txt_heading_mail.setText(mailId);

}

public void setNavigationHeader() {
    if (PrefSetup.getInstance().getUserInfo() == null || PrefSetup.getInstance().getUserInfo().getResponsedata() == null)
        return;
    try {
        LoginResponse.Responsedata userInfo = PrefSetup.getInstance().getUserInfo().getResponsedata();
        ApplicationContext.getInstance().loadImage(userInfo.getProfile_pic(), imageView, null, R.drawable.no_image);
        txt_heading_name.setText(userInfo.getFirst_name() + " " + userInfo.getLast_name());
        txt_heading_mail.setText(userInfo.getEmail());
    } catch (Exception e) {
        ApplicationContext.getInstance().catchException(e);
    }

}

public void setHeader(int image, String headingText) {
    if (image != 0) {
        img_heading_ma.setVisibility(View.VISIBLE);
        txt_heading_name_ma.setVisibility(View.GONE);
    } else {
        img_heading_ma.setVisibility(View.GONE);
        txt_heading_name_ma.setVisibility(View.VISIBLE);
        txt_heading_name_ma.setText(headingText);
    }
}

public boolean isValidUser() {
    if (PrefSetup.getInstance().getUserInfo() != null)
        return true;
    PopupUtils.getInstance().showTwoButtonDialogNoCancelable(this, getString(R.string.alert),
            getString(R.string.login_error), getString(R.string.cancel), getString(R.string.login), (object, position) -> {
                if (position == 1)
                    startLoginActivity();
            });
    return false;
}

  }

activity_main.xml

<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">

<include
    layout="@layout/app_bar_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<android.support.design.widget.NavigationView
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:fitsSystemWindows="true"
    app:headerLayout="@layout/nav_header_main"
    app:menu="@menu/activity_main_drawer">


    <ExpandableListView
        android:id="@+id/navList"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="left|start"
        android:layout_marginTop="280dp"
        android:background="@color/colorPrimary"
        android:divider="@color/white"
        android:dividerHeight="0.7dp"
        android:indicatorRight="?android:attr/expandableListPreferredItemIndicatorRight" />


</android.support.design.widget.NavigationView>

listgroupheader.xml

  <?xml version="1.0" encoding="utf-8"?>
  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:orientation="vertical">

<TextView
    android:id="@+id/lblListHeader"
    android:layout_width="match_parent"
    android:layout_height="?attr/listPreferredItemHeightSmall"
    android:gravity="center_vertical"
    android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
    android:paddingRight="?attr/listPreferredItemPaddingRight"
    android:textColor="#1f2124"
    android:textSize="16sp" />

list_group_child.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="8dp">

<TextView
    android:id="@+id/lblListItem"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft" />

Answer 1

经过大量尝试，我开始意识到只有将导航视图中的所有内容放入可扩展列表视图中，导航视图中的可扩展列表视图才会起作用，因为如果您选择同时使用菜单和可扩展列表视图navigationview 来填充项目然后 expamdablelistview 很可能不会连接到 navigationview 的 header 并且它不会与 navigationview 的其他项目一起滚动并且它永远不会同步以完成格式。所以只需将所有菜单项添加到 expandablelistview 中，并让其他人没有孩子来像普通菜单项一样克隆它们

expandableListview 不与导航视图中的其他菜单项一起滚动

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