Add seekbar and list settings preferences

Taken from AICP

src/com/cherish/settings/preferences/SystemSettingEditTextPreference.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2017 AICP
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.cherish.settings.preferences;
+
+import android.content.Context;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+
+import androidx.preference.EditTextPreference;
+
+public class SystemSettingEditTextPreference extends EditTextPreference {
+    private boolean mAutoSummary = false;
+
+    public SystemSettingEditTextPreference(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        setPreferenceDataStore(new SystemSettingsStore(context.getContentResolver()));
+    }
+
+    public SystemSettingEditTextPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setPreferenceDataStore(new SystemSettingsStore(context.getContentResolver()));
+    }
+
+    public SystemSettingEditTextPreference(Context context) {
+        super(context);
+        setPreferenceDataStore(new SystemSettingsStore(context.getContentResolver()));
+    }
+
+    @Override
+    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
+        // This is what default ListPreference implementation is doing without respecting
+        // real default value:
+        //setText(restoreValue ? getPersistedString(mText) : (String) defaultValue);
+        // Instead, we better do
+        setText(restoreValue ? getPersistedString((String) defaultValue) : (String) defaultValue);
+    }
+
+    @Override
+    public void setText(String text) {
+        super.setText(text);
+        if (mAutoSummary || TextUtils.isEmpty(getSummary())) {
+            setSummary(text, true);
+        }
+    }
+
+    @Override
+    public void setSummary(CharSequence summary) {
+        setSummary(summary, false);
+    }
+
+    private void setSummary(CharSequence summary, boolean autoSummary) {
+        mAutoSummary = autoSummary;
+        super.setSummary(summary);
+    }
+}