initial PreferenceScreen support, works with 'NeoXXX Scans' (pt-br)

AndroidCompat/src/main/java/androidx/preference/EditTextPreference.java

@@ -0,0 +1,46 @@
+package androidx.preference;
+
+import android.content.Context;
+
+public class EditTextPreference extends Preference {
+    private String title;
+    private CharSequence summary;
+    private CharSequence dialogTitle;
+    private CharSequence dialogMessage;
+
+    public EditTextPreference(Context context) {
+        super(context);
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(CharSequence title) {
+        this.title = (String) title;
+    }
+
+    public CharSequence getSummary() {
+        return summary;
+    }
+
+    public void setSummary(CharSequence summary) {
+        this.summary = summary;
+    }
+
+    public CharSequence getDialogTitle() {
+        return dialogTitle;
+    }
+
+    public void setDialogTitle(CharSequence dialogTitle) {
+        this.dialogTitle = dialogTitle;
+    }
+
+    public CharSequence getDialogMessage() {
+        return dialogMessage;
+    }
+
+    public void setDialogMessage(CharSequence dialogMessage) {
+        this.dialogMessage = dialogMessage;
+    }
+}

AndroidCompat/src/main/java/androidx/preference/Preference.java

@@ -0,0 +1,61 @@
+package androidx.preference;
+
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+import android.content.Context;
+
+/** A minimal implementation of androidx.preference.Preference */
+public class Preference {
+    // reference: https://android.googlesource.com/platform/frameworks/support/+/996971f962fcd554339a7cb2859cef9ca89dbcb7/preference/preference/src/main/java/androidx/preference/Preference.java
+    // Note: `Preference` doesn't actually hold or persist the value, `OnPreferenceChangeListener` is called and it's up to the extension to persist it.
+
+    protected Context context;
+
+    private String key;
+    private CharSequence title;
+    private Object defaultValue;
+    private OnPreferenceChangeListener onChangeListener;
+
+    public Preference(Context context) {
+        this.context = context;
+    }
+
+    public Context getContext() {
+        return context;
+    }
+
+
+    public String getKey() {
+        return key;
+    }
+
+    public void setKey(String key) {
+        this.key = key;
+    }
+
+    public void setDefaultValue(Object defaultValue) {
+        this.defaultValue = defaultValue;
+    }
+
+    public CharSequence getTitle() {
+        return title;
+    }
+
+    public void setOnPreferenceChangeListener(OnPreferenceChangeListener onPreferenceChangeListener) {
+        this.onChangeListener = onPreferenceChangeListener;
+    }
+
+    public boolean callChangeListener(Object newValue) {
+        return onChangeListener == null || onChangeListener.onPreferenceChange(this, newValue);
+    }
+
+    public interface OnPreferenceChangeListener {
+        boolean onPreferenceChange(Preference preference, Object newValue);
+    }
+
+}

AndroidCompat/src/main/java/androidx/preference/PreferenceScreen.java

@@ -1,4 +1,32 @@
 package androidx.preference;
 
-public class PreferenceScreen {
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+import android.content.Context;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class PreferenceScreen extends Preference {
+    private List<Preference> preferences = new LinkedList<>();
+
+
+    public PreferenceScreen(Context context) {
+        super(context);
+    }
+
+    public boolean addPreference(Preference preference) {
+        preferences.add(preference);
+
+        return true;
+    }
+
+    public List<Preference> getPreferences(){
+        return preferences;
+    }
 }