Problème d'adaptateur de paramètres de compte

J'ai créé une page de paramètres de compte qui intègre plusieurs options qui s'ouvrent via des fragments. Cependant, je semble être confronté à un problème que je ne peux pas résoudre. J'ai essayé plusieurs solutions mais je semble avoir des erreurs. Votre aide est appréciée!

Lorsque vous cliquez sur le bouton pour ouvrir AccountSettingsActivity, l'application se bloque. Erreur incluse ci-dessous.

Voici mon code:

AccountSettingsActivity.java

E / AndroidRuntime: FATAL EXCEPTION: main
Process: com.archive.pod, PID: 22146
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)'
on a null object reference
at com.archive.pod.Profile.AccountSettingsAdapter.getView(AccountSettingsAdapter.java: 78)
at android.widget.AbsListView.obtainView(AbsListView.java: 2405)
at android.widget.ListView.makeAndAddView(ListView.java: 2071)
at android.widget.ListView.fillDown(ListView.java: 797)
at android.widget.ListView.fillFromTop(ListView.java: 859)
at android.widget.ListView.layoutChildren(ListView.java: 1842)
at android.widget.AbsListView.onLayout(AbsListView.java: 2202)
at android.view.View.layout(View.java: 22466)
at android.view.ViewGroup.layout(ViewGroup.java: 6304)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java: 1103)
at android.view.View.layout(View.java: 22466)
at android.view.ViewGroup.layout(ViewGroup.java: 6304)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java: 1103)
at android.view.View.layout(View.java: 22466)
at android.view.ViewGroup.layout(ViewGroup.java: 6304)
at androidx.coordinatorlayout.widget.CoordinatorLayout.layoutChild(CoordinatorLayout.java: 1183)
at androidx.coordinatorlayout.widget.CoordinatorLayout.onLayoutChild(CoordinatorLayout.java: 870)
at androidx.coordinatorlayout.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java: 889)
at android.view.View.layout(View.java: 22466)
at android.view.ViewGroup.layout(ViewGroup.java: 6304)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java: 332)
at android.widget.FrameLayout.onLayout(FrameLayout.java: 270)
at android.view.View.layout(View.java: 22466)
at android.view.ViewGroup.layout(ViewGroup.java: 6304)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java: 1829)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java: 1673)
at android.widget.LinearLayout.onLayout(LinearLayout.java: 1582)
at android.view.View.layout(View.java: 22466)
at android.view.ViewGroup.layout(ViewGroup.java: 6304)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java: 332)
at android.widget.FrameLayout.onLayout(FrameLayout.java: 270)
at android.view.View.layout(View.java: 22466)
at android.view.ViewGroup.layout(ViewGroup.java: 6304)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java: 1829)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java: 1673)
at android.widget.LinearLayout.onLayout(LinearLayout.java: 1582)
at android.view.View.layout(View.java: 22466)
at android.view.ViewGroup.layout(ViewGroup.java: 6304)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java: 332)
at android.widget.FrameLayout.onLayout(FrameLayout.java: 270)
at com.android.internal.policy.DecorView.onLayout(DecorView.java: 779)
at android.view.View.layout(View.java: 22466)
at android.view.ViewGroup.layout(ViewGroup.java: 6304)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java: 3157)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java: 2614)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java: 1745)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java: 7768)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java: 967)
at android.view.Choreographer.doCallbacks(Choreographer.java: 791)
at android.view.Choreographer.doFrame(Choreographer.java: 726)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java: 952)
at android.os.Handler.handleCallback(Handler.java: 883)
at android.os.Handler.dispatchMessage(Handler.java: 100)
at android.os.Looper.loop(Looper.java: 214)
at android.app.ActivityThread.main(ActivityThread.java: 7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java: 492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java: 930)

AccountSettingsAdapter.java

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

    <include layout="@layout/layout_center_viewpager"/>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/relLayout1">

        <!-- *************** Top Section ***************** -->

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/relLayout2">

            <include layout="@layout/snippet_top_accountsettingtoolbar"/>

        </RelativeLayout>

        <!-- *************** Middle Section ***************** -->

        <RelativeLayout
            android:id="@+id/relLayout3"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@id/relLayout2"
            android:padding="30dp"
            android:background="@color/windowBackground">

                <ListView
                    android:id="@+id/lvAccountSettings"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:divider="@null"
                    android:dividerHeight="0dp">

                </ListView>

        </RelativeLayout>

    </RelativeLayout>

</androidx.coordinatorlayout.widget.CoordinatorLayout>

AccountSettingsOptions.java

public class AccountSettingsOptions {
  private String name;
  private String description;

  public AccountSettingsOptions(String name, String description) {
    this.name = name;
    this.description = description;
  }

  public String getName() {
    return name;
  }

  public void setName(String name) {
    this.name = name;
  }

  public String getDescription() {
    return description;
  }

  public void setDescription(String description) {
    this.description = description;
  }

}

activity_accountsettings.xml

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.archive.pod.R;

import java.util.ArrayList;

public class AccountSettingsAdapter extends BaseAdapter {

  ArrayList < Object > list;
  private static final int OPTIONS = 0;
  private static final int HEADER = 1;
  private LayoutInflater inflater;

  public AccountSettingsAdapter(Context context, ArrayList < Object > list) {
    this.list = list;
    inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  }

  @Override
  public int getItemViewType(int position) {

    if (list.get(position) instanceof AccountSettingsOptions) {
      return OPTIONS;

    } else {
      return HEADER;
    }
  }

  @Override
  public int getViewTypeCount() {
    return 2;
  }

  @Override
  public int getCount() {
    return list.size();
  }

  @Override
  public Object getItem(int i) {
    return list.get(i);
  }

  @Override
  public long getItemId(int i) {
    return i;
  }

  /** This distinguishes between section title and list view options,
  then using switch it beings to populate the options in the list
  view with titles and descriptions */

  @Override
  public View getView(int i, View view, ViewGroup viewGroup) {
    if (view == null) {
      switch (getItemViewType(i)) {
        case OPTIONS:
          view = inflater.inflate(R.layout.activity_accountsettings, viewGroup, false);
          break;
        case HEADER:
          view = inflater.inflate(R.layout.listview_section_header_accountsettings, viewGroup, false);
          break;
      }
    }
    switch (getItemViewType(i)) {
      case OPTIONS:
        TextView name = view.findViewById(R.id.listViewTitle);
        TextView description = view.findViewById(R.id.listViewDescription);

        name.setText(((AccountSettingsOptions) list.get(i)).getName());
        description.setText(((AccountSettingsOptions) list.get(i)).getDescription());
        break;
      case HEADER:

        TextView title = view.findViewById(R.id.optionListViewHeader);
        title.setText(((String) list.get(i)));
        break;
    }
    return view;
  }
}

Erreur: p >

import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.RelativeLayout;

import com.archive.pod.R;
import com.archive.pod.Utils.SectionsStatePagerAdapter;

import java.util.ArrayList;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.ViewPager;

public class AccountSettingsActivity extends AppCompatActivity {

  //Initializing
  private Context mContext;
  private SectionsStatePagerAdapter pagerAdapter;
  private ViewPager mViewPager;
  private RelativeLayout mRelativeLayout;

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

    mContext = AccountSettingsActivity.this;
    mViewPager = findViewById(R.id.container);
    mRelativeLayout = findViewById(R.id.relLayout1);

    //Account Settings Options List Initializer
    setupSettingsList();

    //Account Settings Options Fragment Initializer
    setupFragments();

    //Back Arrow Initialization for Navigation Back to "Profile Activity"
    ImageButton backArrow = findViewById(R.id.back_arrow);
    backArrow.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view) {
        finish();
      }
    });
  }

  private void setupFragments() {
    pagerAdapter = new SectionsStatePagerAdapter(getSupportFragmentManager());
    pagerAdapter.addFragment(new EditProfileFragment(), getString(R.string.editProfile)); //fragment 0
    pagerAdapter.addFragment(new LogoutFragment(), getString(R.string.logout)); // fragment 1
  }

  //Allows for the overlay to show fragment on top of account settings activity
  private void setViewPager(int fragmentNumber) {
    mRelativeLayout.setVisibility(View.GONE);
    mViewPager.setAdapter(pagerAdapter);
    mViewPager.setCurrentItem(fragmentNumber);
  }

  //All Options in Account Settings
  private void setupSettingsList() {
    ListView listView = findViewById(R.id.lvAccountSettings);

    ArrayList < Object > options = new ArrayList < > ();
    options.add(("My Account"));
    options.add(new AccountSettingsOptions("Edit Profile", "Change your profile information.")); //fragment 0
    options.add(("Notifications"));
    options.add(new AccountSettingsOptions("Notifications", "Manage preferences for notifications.")); //fragment 1
    options.add(("Privacy Settings"));
    options.add(new AccountSettingsOptions("Privacy", "Manage your privacy settings.")); //fragment 2
    options.add(new AccountSettingsOptions("Privacy Policy", "Important for both of us.")); //fragment 3
    options.add(("More"));
    options.add(new AccountSettingsOptions("Ads", "Learn more about the ads you see.")); //fragment 4
    options.add(new AccountSettingsOptions("Support", "Get help from us and the community.")); //fragment 5
    options.add(new AccountSettingsOptions("Logout", "See you next time.")); //fragment 6

    listView.setAdapter(new AccountSettingsAdapter(this, options));

    //Navigation to fragment page
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView < ? > parent, View view, int position, long id) {
        setViewPager(position);
      }
    });
  }
}

J'ai inclus tout le code, alors n'hésitez pas à créer votre propre projet!