OnItemClick侦听器无法在Android上使用

Question

我正在AndroidStudio上使用Java开发移动应用程序，我已经创建了一个列表视图，并且效果很好（项目可以单击）。现在我向我的应用程序添加了一个导航抽屉，列表视图出现了，但是元素不再可点击

这是我的activity_main.xml：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawer_layout"
    android:fitsSystemWindows="true"
    tools:context="com.application01.ensa.projetjava.MainActivity"
    tools:openDrawer="start">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="@color/colorPrimary"
            android:elevation="4dp"
            app:layout_collapseMode="pin"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
            app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" />

        <FrameLayout
            android:id="@+id/fragment_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"></FrameLayout>
    </LinearLayout>
    <ListView
        android:id="@+id/ListView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toTopOf="@+id/textView"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0" />
    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        app:headerLayout="@layout/nav_header"
        app:menu="@menu/drawer_menu">

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


</android.support.v4.widget.DrawerLayout>

这是我的mainActivity.java页面：

package com.application01.ensa.projetjava;

import android.support.annotation.NonNull;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;

public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
    private DrawerLayout drawer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        //i've added also the next line

        drawer = findViewById(R.id.drawer_layout);
        NavigationView navigationView = findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawer.addDrawerListener(toggle);
        toggle.syncState();
        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new HomeFragment()).commit();
            navigationView.setCheckedItem(R.id.nav_home);
        }
    }

    @Override
    public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
        switch (menuItem.getItemId()) {
            case R.id.nav_home:
                getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new HomeFragment()).commit();
                break;
            case R.id.nav_leaderboard:
                getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new LeaderboardFragment()).commit();
                break;
            case R.id.nav_discussion:
                getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new DiscussionsFragment()).commit();
                break;
        }
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }

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

这是我的HomeFragment.java：

package com.application01.ensa.projetjava;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class HomeFragment extends Fragment {
    ListView listView ;

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    //j'ai i ajouté le tt sauf la ligne de return
     // super.onCreate(savedInstanceState);
        //setContentView(R.layout.fragment_home);
        View view =  inflater.inflate(R.layout.fragment_home,container,false);
        listView =(ListView) view.findViewById(R.id.ListView);
        String [] concepts=new String[]{"Basic concepts ","Conditionals and Loops","Arrays","classes and objects","More on classes"};
        ArrayAdapter<String> adapter=new ArrayAdapter<String>(getActivity(),android.R.layout.activity_list_item ,android.R.id.text1,concepts);
        listView.setAdapter(adapter);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if(position==0){

                    Intent myintent=new Intent(view.getContext(), com.application01.ensa.projetjava.BasicConceptsActivity.class);
                    startActivityForResult(myintent,0);
                }
                if(position==1){

                    Intent myintent=new Intent(view.getContext(), com.application01.ensa.projetjava.Conditionals.class);
                    startActivityForResult(myintent,1);
                }
                if(position==2){

                    Intent myintent=new Intent(view.getContext(), com.application01.ensa.projetjava.ArraysActivity.class);
                    startActivityForResult(myintent,2);
                }
                if(position==3){

                    Intent myintent=new Intent(view.getContext(), com.application01.ensa.projetjava.classesActivity.class);
                    startActivityForResult(myintent,3);
                }
                if(position==4){

                    Intent myintent=new Intent(view.getContext(), com.application01.ensa.projetjava.MoreActivity.class);
                    startActivityForResult(myintent,4);
                }
            }
        });
        return view;
    }
}

这是我的fragment_home.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:descendantFocusability="blocksDescendants"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_marginTop="10dp"
        android:layout_marginEnd="96dp"
        android:layout_marginRight="96dp"
        android:text="welcome to code wiht Nisrine " />
    <ListView
        android:focusable="false"
        android:focusableInTouchMode="false"
        android:id="@+id/ListView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="96dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</RelativeLayout>

谢谢。