选择选项时按钮破坏应用程序

Question

下面的脚本是SettingsActivity.java

    public class SettingsActivity extends AppCompatActivity {

    Toolbar toolbar;
    Context context;
    FragmentActivity activity;
    CallbackManager callbackManager;
    Button changelanguage;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_settings);
        this.context = this;

        //set toolbar
        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // close on back button pressed
                finish();
            }
        });

        //set fragment to MyPreferenceFragment
        getFragmentManager().beginTransaction().replace(R.id.content, new MyPreferenceFragment()).commit();

        loadLocale();
        activity = this;


        //set change language button
        changelanguage = findViewById(R.id.change_lang_btn2);
        changelanguage.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                // Array of languages to dispaly in AlertDialog
                final String[] listitems ={"English","Spanish | Español","Portuguese | Português","French | français"};

                // Create AlertDialog to display list of languages
                AlertDialog.Builder alert = new AlertDialog.Builder(SettingsActivity.this);
                alert.setTitle("Choose Language..");
                alert.setSingleChoiceItems(listitems, -1, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        if (i == 0){
                            //set English
                            setLocale("en");
                            recreate();
                        }
                        else if (i == 1){
                            //set Spanish
                            setLocale("es");
                            recreate();
                        }
                        else if (i == 2){
                            //set Portuguese
                            setLocale("pt");
                            recreate();
                        }
                        else if (i == 3){
                            //set french
                            setLocale("fr");
                            recreate();
                        }

                        //dismiss alert dialog when language is selected
                        dialogInterface.dismiss();
                    }
                });
                alert.show();
            }
        });
    }

    private void setLocale(String lang) {
        Locale locale = new Locale(lang);
        Locale.setDefault(locale);
        Configuration configuration = new Configuration();
        configuration.locale = locale;
        getBaseContext().getResources().updateConfiguration(configuration,getBaseContext().getResources().getDisplayMetrics());

        //save data to sharedpreferences
        SharedPreferences.Editor editor = getSharedPreferences("lang_settings",MODE_PRIVATE).edit();
        editor.putString("My_lang",lang);
        editor.apply();
    }

    //load language saved in shared preferences
    public void loadLocale(){
        SharedPreferences prefs = getSharedPreferences("lang_settings", Activity.MODE_PRIVATE);
        String language = prefs.getString("My_lang", "");
        setLocale(language);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        callbackManager.onActivityResult(requestCode, resultCode, data);
    }

}

下面的脚本是Activity_Settings.xml

<RelativeLayout 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"
    android:fitsSystemWindows="true"
    android:gravity="center"
    tools:context="com.riipo.gt.MainActivity">


    <android.support.v7.widget.Toolbar xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?attr/colorPrimary"
        android:minHeight="?attr/actionBarSize"
        app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" />

    <FrameLayout
        android:id="@+id/drawer_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@id/toolbar">

        <fragment
            android:id="@+id/content"
            class="com.riipo.helpers.MyPreferenceFragment"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1" />
    </FrameLayout>
    <Button
        android:id="@+id/change_lang_btn2"
        android:layout_width="wrap_content"
        android:layout_height="45dp"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_gravity="center"
        android:layout_margin="10dp"
        android:backgroundTint="@color/accent"
        android:gravity="center_vertical"
        android:paddingLeft="20dp"
        android:paddingRight="20dp"
        android:text="@string/change_language_button"
        android:textColor="@color/colorWhite"
        android:textSize="14sp"
        />
</RelativeLayout>

This is the error I'm getting:

我现在将描述问题，脚本是通过配置区域内的按钮更改我的应用程序语言的一种方式，这种脚本位于SettingsActivity.java中，单击该按钮后，出现的选项是选择，然后选择应用程序。

上面显示的错误消息应该是一个简单的语言交换系统，但是我遇到了几天，有人可以帮我吗？

提前谢谢！