Question

我检查了有关此问题的相关答案，但没有一个对我有帮助。我在这上面用过一些碎片。

这是应该显示在我的应用中的工具栏的一个片段：

但是，我的应用将显示如下：

有人可以帮我吗？这是我的代码：

SalesFragment.java

package com.example.devcash.Fragments;


import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.example.devcash.R;


/**
 * A simple {@link Fragment} subclass.
 */
public class SalesFragment extends Fragment {


    public SalesFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_sales, container, false);
        return view;
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
    }

    @Override
    public void onResume() {
        super.onResume();
        ((AppCompatActivity)getActivity()).getSupportActionBar().hide();
    }

    @Override
    public void onStop() {
        super.onStop();
        ((AppCompatActivity)getActivity()).getSupportActionBar().show();
    }
}

PurchaseItemListFragment.java

package com.example.devcash.Fragments;


import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.SearchView;
import android.widget.Spinner;
import android.widget.Toast;

import com.example.devcash.R;


/**
 * A simple {@link Fragment} subclass.
 */
public class PurchaseItemListFragment extends Fragment implements SearchView.OnQueryTextListener, MenuItem.OnActionExpandListener {

    Toolbar itemListToolbar;
    Spinner itemListSpinner;


    public PurchaseItemListFragment() {
        // Required empty public constructor
    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        //inflate the  menu
        setHasOptionsMenu(true);
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_purchase_item_list, container, false);


        itemListToolbar = (Toolbar) view.findViewById(R.id.toolbar_purchaseitemlist);
        itemListSpinner = (Spinner) view.findViewById(R.id.spinner_allcategories);

        ///
        ArrayAdapter<String> myAdapter = new ArrayAdapter<String>(getActivity(),
                R.layout.custom_spinner_item,
                getResources().getStringArray(R.array.dropdownitempurchase));
        myAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        itemListSpinner.setAdapter(myAdapter);

        itemListSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(getActivity(),
                        itemListSpinner.getSelectedItem().toString(),
                        Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        });

        return view;
    }

    //handles the search menu
    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.searchmenu, menu);
        MenuItem searchItem = menu.findItem(R.id.action_search);
        SearchView searchView = (SearchView) searchItem.getActionView();
        searchView.setOnQueryTextListener(this);
        searchView.setQueryHint("Search..");

        super.onCreateOptionsMenu(menu, inflater);
    }

    @Override
    public boolean onQueryTextSubmit(String query) {
        return false;
    }

    @Override
    public boolean onQueryTextChange(String newText) {
        return false;
    }


    @Override
    public boolean onMenuItemActionExpand(MenuItem item) {
        return true;
    }

    @Override
    public boolean onMenuItemActionCollapse(MenuItem item) {
        return true;
    }
}

PurchaseListFragment.java

package com.example.devcash.Fragments;


import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.Toast;

import com.example.devcash.R;


/**
 * A simple {@link Fragment} subclass.
 */
public class PurchaseListFragment extends Fragment {

    Toolbar purchaseListToolbar;
    Spinner purchaseListSpinner;


    public PurchaseListFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_purchase_list, container, false);

        setHasOptionsMenu(true);

        purchaseListToolbar = (Toolbar) view.findViewById(R.id.toolbar_purchaselist);
        purchaseListSpinner = (Spinner) view.findViewById(R.id.spinner_customertype);

        ///
        ArrayAdapter<String> myAdapter = new ArrayAdapter<String>(getActivity(),
                android.R.layout.simple_list_item_1,
                getResources().getStringArray(R.array.customer_type));
        myAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        purchaseListSpinner.setAdapter(myAdapter);

        purchaseListSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(getActivity(),
                        purchaseListSpinner.getSelectedItem().toString(),
                        Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        });


        //set adapter
        //set click listener

        //show no data found text when listview is empty
        // button click listener
        Button btnpay = view.findViewById(R.id.btn_paypurchasetransaction);
        btnpay.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Fragment chargeFragment = new ChargeFragment();

                FragmentManager fragmentManager = getFragmentManager();
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                fragmentTransaction.replace(R.id.customersales_content, chargeFragment);
                fragmentTransaction.addToBackStack(null);
                fragmentTransaction.commit();
            }
        });

        return view;
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        super.onCreateOptionsMenu(menu, inflater);
        menu.clear();
        inflater.inflate(R.menu.purchaselist_menu, menu);
    }
}

这是我创建了自定义工具栏的布局的片段

fragment_purchase_item_list.xml

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar_purchaseitemlist"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    style="@style/PrimaryHeaderBar"
    android:elevation="4dp">

    <Spinner
        android:id="@+id/spinner_allcategories"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

</android.support.v7.widget.Toolbar>

fragment_purchase_list.xml

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar_purchaselist"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:theme="@style/ThemeOverlay.AppCompat.Light"
    style="@style/HeaderBar"
    android:elevation="4dp">

    <Spinner
        android:id="@+id/spinner_customertype"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

</android.support.v7.widget.Toolbar>

如何在片段的自定义工具栏中显示菜单？

0 个答案: