From 5df14a05469b0b0290b23178b3d6e81c3cfd0e73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C6=B0ng=20Phan?= <phandinhhungvp2001@gmail.com>
Date: Fri, 16 Dec 2022 02:36:30 +0700
Subject: [PATCH] Import some SystemSettingColorPickerPreference
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This reverts commit f547af0ea12dadee832ab6f0e545a89eb9f4bd82.

Signed-off-by: Hưng Phan <phandinhhungvp2001@gmail.com>
---
 .../color_picker_preview_background.xml       |   5 +
 .../color_picker_seekbar_background.xml       |   5 +
 res/drawable/color_picker_seekbar_thumb.xml   |  11 +
 res/layout/color_picker_layout.xml            | 135 ++++++
 res/values-night/styles.xml                   |  22 +
 res/values/cherish_dimens.xml                 |   2 +
 res/values/cherish_strings.xml                |   7 +
 res/values/cherish_styles.xml                 |  42 ++
 .../fragments/CherishDashboardFragment.kt     |  13 +-
 .../settings/fragments/ColorPickerFragment.kt | 418 ++++++++++++++++++
 .../preferences/ColorPickerPreference.kt      |  49 ++
 .../SecureSettingColorPickerPreference.kt     |  29 ++
 .../SystemSettingColorPickerPreference.kt     |  29 ++
 13 files changed, 766 insertions(+), 1 deletion(-)
 create mode 100644 res/drawable/color_picker_preview_background.xml
 create mode 100644 res/drawable/color_picker_seekbar_background.xml
 create mode 100644 res/drawable/color_picker_seekbar_thumb.xml
 create mode 100644 res/layout/color_picker_layout.xml
 create mode 100644 res/values-night/styles.xml
 create mode 100644 src/com/cherish/settings/fragments/ColorPickerFragment.kt
 create mode 100644 src/com/cherish/settings/preferences/ColorPickerPreference.kt
 create mode 100644 src/com/cherish/settings/preferences/SecureSettingColorPickerPreference.kt
 create mode 100644 src/com/cherish/settings/preferences/SystemSettingColorPickerPreference.kt

diff --git a/res/drawable/color_picker_preview_background.xml b/res/drawable/color_picker_preview_background.xml
new file mode 100644
index 0000000..b1cedc5
--- /dev/null
+++ b/res/drawable/color_picker_preview_background.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="6dp" />
+</shape>
\ No newline at end of file
diff --git a/res/drawable/color_picker_seekbar_background.xml b/res/drawable/color_picker_seekbar_background.xml
new file mode 100644
index 0000000..36076ab
--- /dev/null
+++ b/res/drawable/color_picker_seekbar_background.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <corners android:radius="5dp" />
+    <gradient android:type="linear" />
+</shape>
\ No newline at end of file
diff --git a/res/drawable/color_picker_seekbar_thumb.xml b/res/drawable/color_picker_seekbar_thumb.xml
new file mode 100644
index 0000000..2c58a6a3
--- /dev/null
+++ b/res/drawable/color_picker_seekbar_thumb.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="#FFFFFF">
+    <item>
+        <shape android:shape="oval">
+            <solid android:color="?android:attr/colorPrimaryDark" />
+            <size android:width="20dp"
+                android:height="20dp" />
+        </shape>
+    </item>
+</ripple>
\ No newline at end of file
diff --git a/res/layout/color_picker_layout.xml b/res/layout/color_picker_layout.xml
new file mode 100644
index 0000000..858d209
--- /dev/null
+++ b/res/layout/color_picker_layout.xml
@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2022 FlamingoOS Project
+
+     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.
+-->
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:settings="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingTop="@dimen/default_padding"
+    android:paddingBottom="@dimen/default_padding">
+
+    <View
+        android:id="@+id/color_preview"
+        android:layout_width="0dp"
+        android:layout_height="@dimen/color_picker_preview_height"
+        android:layout_marginStart="@dimen/default_margin"
+        android:layout_marginEnd="@dimen/default_margin"
+        android:background="@drawable/color_picker_preview_background"
+        settings:layout_constraintEnd_toEndOf="parent"
+        settings:layout_constraintStart_toStartOf="parent"
+        settings:layout_constraintTop_toTopOf="parent" />
+
+    <EditText
+        android:id="@+id/color_input"
+        style="@style/ColorPickerEditTextStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        settings:layout_constraintStart_toStartOf="@id/color_preview"
+        settings:layout_constraintTop_toTopOf="@id/color_preview"
+        settings:layout_constraintEnd_toEndOf="@id/color_preview"
+        settings:layout_constraintBottom_toBottomOf="@id/color_preview" />
+
+    <SeekBar
+        android:id="@+id/seekBar1"
+        style="@style/ColorPickerSeekBarStyle"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        settings:layout_constraintBottom_toTopOf="@id/seekBar2"
+        settings:layout_constraintEnd_toEndOf="parent"
+        settings:layout_constraintStart_toStartOf="parent"
+        settings:layout_constraintTop_toBottomOf="@id/color_preview" />
+
+    <SeekBar
+        android:id="@+id/seekBar2"
+        style="@style/ColorPickerSeekBarStyle"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        settings:layout_constraintBottom_toTopOf="@id/seekBar3"
+        settings:layout_constraintEnd_toEndOf="parent"
+        settings:layout_constraintStart_toStartOf="parent"
+        settings:layout_constraintTop_toBottomOf="@id/seekBar1" />
+
+    <SeekBar
+        android:id="@+id/seekBar3"
+        style="@style/ColorPickerSeekBarStyle"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="@dimen/default_margin"
+        settings:layout_constraintBottom_toTopOf="@id/barrier"
+        settings:layout_constraintEnd_toEndOf="parent"
+        settings:layout_constraintStart_toStartOf="parent"
+        settings:layout_constraintTop_toBottomOf="@id/seekBar2" />
+
+    <RadioGroup
+        android:id="@+id/color_model_group"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="@dimen/default_margin"
+        android:orientation="horizontal"
+        settings:layout_constraintBottom_toBottomOf="@id/confirm_button"
+        settings:layout_constraintStart_toStartOf="parent"
+        settings:layout_constraintTop_toTopOf="@id/confirm_button">
+
+        <RadioButton
+            android:id="@+id/rgb_button"
+            style="@style/ColorPickerRadioButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:checked="true"
+            android:text="@string/rgb" />
+
+        <RadioButton
+            android:id="@+id/hsl_button"
+            style="@style/ColorPickerRadioButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/hsl" />
+
+        <RadioButton
+            android:id="@+id/hsv_button"
+            style="@style/ColorPickerRadioButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/hsv" />
+    </RadioGroup>
+
+    <Button
+        android:id="@+id/cancel_button"
+        style="@style/ColorPickerButtonStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="12dp"
+        android:text="@string/cancel"
+        settings:layout_constraintBottom_toBottomOf="@id/confirm_button"
+        settings:layout_constraintEnd_toStartOf="@id/confirm_button"
+        settings:layout_constraintTop_toTopOf="@id/confirm_button" />
+
+    <Button
+        android:id="@+id/confirm_button"
+        style="@style/ColorPickerButtonStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="@dimen/default_margin"
+        android:text="@string/confirm"
+        settings:layout_constraintBottom_toBottomOf="parent"
+        settings:layout_constraintEnd_toEndOf="parent" />
+
+    <androidx.constraintlayout.widget.Barrier
+        android:id="@+id/barrier"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        settings:barrierDirection="top"
+        settings:constraint_referenced_ids="color_model_group, confirm_button" />
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/res/values-night/styles.xml b/res/values-night/styles.xml
new file mode 100644
index 0000000..3087a13
--- /dev/null
+++ b/res/values-night/styles.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 The Android Open Source Project
+     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.
+-->
+
+<resources>
+    <style name="ColorPickerStyle" parent="Theme.MaterialComponents.BottomSheetDialog">
+        <item name="colorPrimary">@*android:color/primary_device_default_settings</item>
+        <item name="colorPrimaryDark">@*android:color/primary_device_default_settings_light</item>
+        <item name="colorAccent">@*android:color/accent_device_default_dark</item>
+        <item name="android:fontFamily">@*android:string/config_headlineFontFamilyMedium</item>
+        <item name="android:textColorPrimary">#FFFFFF</item>
+    </style>
+</resources>
diff --git a/res/values/cherish_dimens.xml b/res/values/cherish_dimens.xml
index 27f18ae..077cd9b 100644
--- a/res/values/cherish_dimens.xml
+++ b/res/values/cherish_dimens.xml
@@ -22,6 +22,8 @@
     <dimen name="alert_dialog_padding_material">20dp</dimen>
     <dimen name="color_preference_width">18dip</dimen>
     <dimen name="color_preference_height">18dip</dimen>
+	
+	<dimen name="color_picker_preview_height">80dp</dimen>
 
     <!-- Shortcut picker -->
     <dimen name="shortcut_picker_left_padding">70dip</dimen>
diff --git a/res/values/cherish_strings.xml b/res/values/cherish_strings.xml
index 312a65f..72d192f 100644
--- a/res/values/cherish_strings.xml
+++ b/res/values/cherish_strings.xml
@@ -96,6 +96,13 @@
     <!-- Power menu Animations  -->
     <string name="power_menu_animation">Power menu</string>
 	
+	<!-- Color picker -->
+    <string name="rgb">RGB</string>
+    <string name="hsl">HSL</string>
+    <string name="hsv">HSV</string>
+    <string name="confirm">Confirm</string>
+    <string name="invalid_color">Invalid color!</string>
+	
 	<!-- QS header image -->
 
     <!-- Lockscreen -->
diff --git a/res/values/cherish_styles.xml b/res/values/cherish_styles.xml
index be0f7b7..28ba04c 100644
--- a/res/values/cherish_styles.xml
+++ b/res/values/cherish_styles.xml
@@ -23,4 +23,46 @@
    <dimen name="fod_picker_item_padding">20dp</dimen>
 
     <color name="option_border_default">#5f6368</color>
+	
+	<style name="ColorPickerStyle" parent="Theme.MaterialComponents.BottomSheetDialog">
+        <item name="colorPrimary">@*android:color/primary_device_default_settings_light</item>
+        <item name="colorPrimaryDark">@*android:color/primary_device_default_settings</item>
+        <item name="colorAccent">@*android:color/accent_device_default_light</item>
+        <item name="android:fontFamily">@*android:string/config_headlineFontFamilyMedium</item>
+        <item name="android:textColorPrimary">#000000</item>
+    </style>
+
+    <style name="ColorPickerSeekBarStyle" parent="Widget.AppCompat.SeekBar">
+        <item name="android:layout_marginTop">30dp</item>
+        <item name="android:paddingStart">16dp</item>
+        <item name="android:paddingEnd">18dp</item>
+        <item name="android:maxHeight">8dp</item>
+        <item name="android:progressDrawable">@drawable/color_picker_seekbar_background</item>
+        <item name="android:thumb">@drawable/color_picker_seekbar_thumb</item>
+        <item name="android:splitTrack">false</item>
+    </style>
+
+     <style name="ColorPickerRadioButtonStyle">
+        <item name="android:paddingTop">12dp</item>
+        <item name="android:paddingBottom">12dp</item>
+        <item name="android:buttonTint">?android:attr/colorAccent</item>
+        <item name="android:textColor">?android:attr/textColorPrimary</item>
+    </style>
+
+    <style name="ColorPickerButtonStyle">
+        <item name="android:background">@android:color/transparent</item>
+        <item name="android:minWidth">0dp</item>
+        <item name="android:minHeight">0dp</item>
+        <item name="android:padding">8dp</item>
+        <item name="android:textColor">?android:attr/colorAccent</item>
+    </style>
+
+    <style name="ColorPickerEditTextStyle">
+        <item name="android:gravity">center</item>
+        <item name="android:inputType">textCapCharacters|textNoSuggestions</item>
+        <item name="android:importantForAutofill">no</item>
+        <item name="android:textCursorDrawable">@null</item>
+        <item name="android:imeOptions">actionDone</item>
+        <item name="android:singleLine">true</item>
+    </style>
 </resources>
diff --git a/src/com/cherish/settings/fragments/CherishDashboardFragment.kt b/src/com/cherish/settings/fragments/CherishDashboardFragment.kt
index 3b5b65d..555cc99 100644
--- a/src/com/cherish/settings/fragments/CherishDashboardFragment.kt
+++ b/src/com/cherish/settings/fragments/CherishDashboardFragment.kt
@@ -20,15 +20,26 @@ import androidx.preference.Preference
 
 import com.android.internal.logging.nano.MetricsProto
 import com.android.settings.dashboard.DashboardFragment
+import com.cherish.settings.fragments.ColorPickerFragment
+import com.cherish.settings.preferences.ColorPickerPreference
 
 abstract class CherishDashboardFragment: DashboardFragment() {
     override fun getMetricsCategory(): Int = MetricsProto.MetricsEvent.CHERISH_SETTINGS
 
     override fun onDisplayPreferenceDialog(preference: Preference) {
-        super.onDisplayPreferenceDialog(preference)
+        if (preference is ColorPickerPreference) {
+            ColorPickerFragment(preference.color).apply {
+                setOnConfirmListener {
+                    preference.setColor(it)
+                }
+            }.show(childFragmentManager, COLOR_PICKER_DIALOG_KEY)
+        } else {
+            super.onDisplayPreferenceDialog(preference)
+        }
     }
 
     companion object {
         const val REQUEST_KEY = "CherishDashboardFragment#RequestKey"
+        const val COLOR_PICKER_DIALOG_KEY = "color_picker_dialog"
     }
 }
\ No newline at end of file
diff --git a/src/com/cherish/settings/fragments/ColorPickerFragment.kt b/src/com/cherish/settings/fragments/ColorPickerFragment.kt
new file mode 100644
index 0000000..4f6addb
--- /dev/null
+++ b/src/com/cherish/settings/fragments/ColorPickerFragment.kt
@@ -0,0 +1,418 @@
+/*
+ * Copyright (C) 2022 FlamingoOS Project
+ *
+ * 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.fragments
+
+import android.annotation.ColorInt
+import android.content.pm.ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
+import android.content.res.ColorStateList
+import android.graphics.Color
+import android.graphics.drawable.Drawable
+import android.graphics.drawable.GradientDrawable
+import android.os.Bundle
+import android.text.Editable
+import android.text.Spanned
+import android.text.InputFilter
+import android.view.HapticFeedbackConstants.KEYBOARD_PRESS
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.EditText
+import android.widget.RadioGroup
+import android.widget.SeekBar
+import android.widget.TextView
+import android.widget.Toast
+
+import androidx.core.graphics.ColorUtils
+import androidx.core.widget.doAfterTextChanged
+import androidx.fragment.app.DialogFragment.STYLE_NORMAL
+
+import com.google.android.material.bottomsheet.BottomSheetDialogFragment
+import com.android.settings.R
+
+class ColorPickerFragment(
+    defaultColor: String? = "#FFFFFF",
+) : BottomSheetDialogFragment(),
+    RadioGroup.OnCheckedChangeListener,
+    SeekBar.OnSeekBarChangeListener {
+
+    private lateinit var colorPreview: View
+    private lateinit var colorInput: EditText
+    private lateinit var seekBarOne: SeekBar
+    private lateinit var seekBarTwo: SeekBar
+    private lateinit var seekBarThree: SeekBar
+
+    private var colorModel = ColorModel.RGB
+    private var textInputChangedInternal = false // Internal variable to prevent loops with TextWatcher
+    private var confirmListener: (String) -> Unit = {}
+
+    @ColorInt
+    private var color: Int
+
+    init {
+        color = if (defaultColor == null || defaultColor.isEmpty()) {
+            Color.WHITE
+        } else {
+            try {
+                Color.parseColor(defaultColor)
+            } catch (e: IllegalArgumentException) {
+                Color.WHITE
+            }
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        activity?.requestedOrientation = SCREEN_ORIENTATION_PORTRAIT
+        setStyle(STYLE_NORMAL, R.style.ColorPickerStyle)
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View = inflater.inflate(R.layout.color_picker_layout, container, false)
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?)  {
+        colorPreview = view.findViewById(R.id.color_preview)
+        colorInput = view.findViewById(R.id.color_input)
+
+        colorInput.doAfterTextChanged {
+            if (textInputChangedInternal) {
+                // Reset it here
+                textInputChangedInternal = false
+                return@doAfterTextChanged
+            }
+            if (it?.length != 7) return@doAfterTextChanged
+            color = try {
+                Color.parseColor(it.toString())
+            } catch (e: IllegalArgumentException) {
+                Toast.makeText(
+                    context,
+                    R.string.invalid_color,
+                    Toast.LENGTH_SHORT
+                )
+                Color.WHITE
+            }
+            updateSliders()
+            updateSliderGradients(false)
+            previewColor(true)
+        }
+
+        colorInput.filters = arrayOf(
+            InputFilter.LengthFilter(7),
+            InputFilter filter@ { source, start, end, _, dstart, dend ->
+                // Deletion
+                if (start == 0 && end == 0) {
+                    return@filter null
+                }
+                if (dstart == 0) {
+                    // First character has to be # and rest of them
+                    // (if present) be a valid hex char
+                    if (!source.startsWith("#")) {
+                        return@filter ""
+                    }
+                    // Just a single char
+                    if (dstart == dend) return@filter null
+                    if (!HEX_PATTERN.matches(source.subSequence(1, end))) {
+                        return@filter ""
+                    }
+                } else {
+                    // Does not start from 0, so every char has to be valid hex
+                    if (!HEX_PATTERN.matches(source)) {
+                        return@filter ""
+                    }
+                }
+                if ((end - start) == 7) { // Full hex input
+                    if (!COLOR_HEX_PATTERN.matches(source)) {
+                        return@filter ""
+                    }
+                }
+                null
+            }
+        )
+
+        view.findViewById<Button>(R.id.cancel_button).setOnClickListener {
+            it.performHapticFeedback(KEYBOARD_PRESS)
+            dialog?.dismiss()
+        }
+
+        view.findViewById<Button>(R.id.confirm_button).setOnClickListener {
+            it.performHapticFeedback(KEYBOARD_PRESS)
+            dialog?.dismiss()
+            val colorHex = colorInput.text.toString()
+            if (colorHex.isEmpty() || colorHex.length == 7) {
+                confirmListener(colorHex)
+            }
+        }
+
+        /*
+         * Set the drawables as mutable so that they
+         * do not share a constant state or else all
+         * three slider gradients will look alike
+         */
+        seekBarOne = view.findViewById<SeekBar>(R.id.seekBar1).also {
+            it.progressDrawable.mutate()
+            it.setOnSeekBarChangeListener(this)
+        }
+        seekBarTwo = view.findViewById<SeekBar>(R.id.seekBar2).also {
+            it.progressDrawable.mutate()
+            it.setOnSeekBarChangeListener(this)
+        }
+        seekBarThree = view.findViewById<SeekBar>(R.id.seekBar3).also {
+            it.progressDrawable.mutate()
+            it.setOnSeekBarChangeListener(this)
+        }
+
+        // Register listener for color model change
+        view.findViewById<RadioGroup>(R.id.color_model_group).also {
+            it.setOnCheckedChangeListener(this)
+        }
+
+        // Update sliders and preview
+        updateSliderMax()
+        updateSliders()
+        updateSliderGradients(true)
+        previewColor(false)
+    }
+
+    override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
+        if (!fromUser) return
+        color = when (colorModel) {
+            ColorModel.RGB -> {
+                Color.rgb(
+                    seekBarOne.progress,
+                    seekBarTwo.progress,
+                    seekBarThree.progress
+                )
+            }
+            ColorModel.HSV -> {
+                HSVToColor(
+                    seekBarOne.progress.toFloat(),
+                    seekBarTwo.progress / 100f,
+                    seekBarThree.progress / 100f
+                )
+            }
+            ColorModel.HSL -> {
+                HSLToColor(
+                    seekBarOne.progress.toFloat(),
+                    seekBarTwo.progress / 100f,
+                    seekBarThree.progress / 100f
+                )
+            }
+        }
+        if (colorModel != ColorModel.RGB) {
+            updateSliderGradients(false)
+        }
+        previewColor(false)
+    }
+
+    override fun onStartTrackingTouch(seekBar: SeekBar) {
+        // Not implemented
+    }
+
+    override fun onStopTrackingTouch(seekBar: SeekBar) {
+        // Not implemented
+    }
+
+    override fun onCheckedChanged(group: RadioGroup, checkedId: Int) {
+        colorModel = when (checkedId) {
+            R.id.rgb_button -> ColorModel.RGB
+            R.id.hsv_button -> ColorModel.HSV
+            R.id.hsl_button -> ColorModel.HSL
+            else -> ColorModel.RGB
+        }
+        updateSliderMax()
+        updateSliders()
+        updateSliderGradients(true)
+    }
+
+    /*
+     * Set a confirmation listener that will be invoked when confirm
+     * button of the dialog is pressed.
+     *
+     * @param listener the listener to be invoked. Hex value of the
+     *      color (including # prefix and RGB) will be the type parameter
+     *      of the listener. Do note that the parameter can also be empty.
+     */
+    fun setOnConfirmListener(listener: (String) -> Unit) {
+        confirmListener = listener
+    }
+
+    /**
+     * Used to update sliders if color model changes or
+     * user inputs a color hex. For the latter it must be called
+     * only after the accent colors are updated.
+     */
+    private fun updateSliders() {
+        when (colorModel) {
+            ColorModel.RGB -> updateSliderProgressFromColor()
+            ColorModel.HSV -> {
+                val array = FloatArray(3)
+                Color.colorToHSV(color, array)
+                updateSliderProgressFromHSVorHSL(array)
+            }
+            ColorModel.HSL -> {
+                val array = FloatArray(3)
+                ColorUtils.colorToHSL(color, array)
+                updateSliderProgressFromHSVorHSL(array)
+            }
+        }
+    }
+
+    // For updating RGB slider progress
+    private fun updateSliderProgressFromColor() {
+        seekBarOne.progress = Color.red(color)
+        seekBarTwo.progress = Color.green(color)
+        seekBarThree.progress = Color.blue(color)
+    }
+
+    // For updating HSV / HSL slider progress
+    private fun updateSliderProgressFromHSVorHSL(hsvOrHSL: FloatArray) {
+        seekBarOne.progress = hsvOrHSL[0].toInt()
+        seekBarTwo.progress = (hsvOrHSL[1] * 100).toInt()
+        seekBarThree.progress = (hsvOrHSL[2] * 100).toInt()
+    }
+
+    // For updating the slider GradientDrawable's based on ColorModel
+    private fun updateSliderGradients(colorModelChanged: Boolean) {
+        if (colorModel == ColorModel.RGB) {
+            if (colorModelChanged) {
+                updateRGBGradient(seekBarOne.progressDrawable, Color.RED)
+                updateRGBGradient(seekBarTwo.progressDrawable, Color.GREEN)
+                updateRGBGradient(seekBarThree.progressDrawable, Color.BLUE)
+            }
+        } else {
+            if (colorModelChanged) {
+                updateHueGradient()
+            }
+            updateSaturationGradient()
+            if (colorModel == ColorModel.HSV) {
+                updateValueGradient()
+            } else {
+                updateLuminanceGradient()
+            }
+        }
+    }
+
+    private fun updateLuminanceGradient() {
+        val drawable = seekBarThree.progressDrawable as GradientDrawable
+        drawable.colors = intArrayOf(
+            Color.BLACK,
+            HSLToColor(
+                seekBarOne.progress.toFloat(),
+                seekBarTwo.progress / 100f,
+                0.5f
+            ),
+            Color.WHITE,
+        )
+    }
+
+    private fun updateValueGradient() {
+        val drawable = seekBarThree.progressDrawable as GradientDrawable
+        drawable.colors = intArrayOf(
+            Color.BLACK,
+            HSVToColor(
+                seekBarOne.progress.toFloat(),
+                seekBarTwo.progress / 100f,
+                1f
+            ),
+        )
+    }
+
+    private fun updateSaturationGradient() {
+        val drawable = seekBarTwo.progressDrawable as GradientDrawable
+        drawable.colors = intArrayOf(
+            Color.WHITE,
+            if (colorModel == ColorModel.HSV) {
+                HSVToColor(
+                    seekBarOne.progress.toFloat(),
+                    1f,
+                    seekBarThree.progress / 100f
+                )
+            } else {
+                HSLToColor(
+                    seekBarOne.progress.toFloat(),
+                    1f,
+                    seekBarThree.progress / 100f
+                )
+            }
+        )
+    }
+
+    private fun updateHueGradient() {
+        val drawable = seekBarOne.progressDrawable as GradientDrawable
+        drawable.colors = hueGradientColors
+    }
+
+    private fun updateRGBGradient(progressDrawable: Drawable, color: Int) {
+        val drawable = progressDrawable as GradientDrawable
+        drawable.colors = intArrayOf(Color.BLACK, color)
+    }
+
+    // inputFromUser should be set to true when user has entered a hex color
+    private fun previewColor(inputFromUser: Boolean) {
+        colorPreview.backgroundTintList = ColorStateList.valueOf(color)
+        colorInput.setTextColor(
+            if (ColorUtils.calculateLuminance(color) > 0.5) {
+                Color.BLACK
+            } else {
+                Color.WHITE
+            }
+        )
+        textInputChangedInternal = true
+        if (!inputFromUser) {
+            colorInput.setText(colorToHex(color))
+        }
+    }
+
+    private fun updateSliderMax() {
+        val isRGB = colorModel == ColorModel.RGB
+        seekBarOne.max = if (isRGB) 255 else 360
+        seekBarTwo.max = if (isRGB) 255 else 100
+        seekBarThree.max = if (isRGB) 255 else 100
+    }
+
+    private enum class ColorModel {
+        RGB,
+        HSL,
+        HSV
+    }
+
+    companion object {
+        private val HEX_PATTERN = Regex("[0-9a-fA-F]+")
+        private val COLOR_HEX_PATTERN = Regex("^[#][0-9a-fA-F]{6}")
+
+        private val hueGradientColors = IntArray(7) {
+            HSVToColor(it * 60f, 1f, 1f)
+        }
+
+        private fun HSVToColor(
+            hue: Float,
+            sat: Float,
+            value: Float,
+        ): Int = Color.HSVToColor(floatArrayOf(hue, sat, value))
+
+        private fun HSLToColor(
+            hue: Float,
+            sat: Float,
+            lum: Float,
+        ): Int = ColorUtils.HSLToColor(floatArrayOf(hue, sat, lum))
+
+        private fun colorToHex(color: Int) = String.format("#%06X", (0xFFFFFF and color))
+    }
+}
diff --git a/src/com/cherish/settings/preferences/ColorPickerPreference.kt b/src/com/cherish/settings/preferences/ColorPickerPreference.kt
new file mode 100644
index 0000000..1d7301e
--- /dev/null
+++ b/src/com/cherish/settings/preferences/ColorPickerPreference.kt
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2022 FlamingoOS Project
+ *
+ * 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.content.res.TypedArray
+import android.util.AttributeSet
+
+import androidx.preference.DialogPreference
+
+open class ColorPickerPreference @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+) : DialogPreference(context, attrs) {
+
+    var color: String? = null
+        private set
+
+    override protected fun onGetDefaultValue(a: TypedArray, index: Int): Any? {
+        return a.getString(index)
+    }
+
+    override protected fun onSetInitialValue(restoreValue: Boolean, defaultValue: Any?) {
+        val def = defaultValue as? String
+        color = if (restoreValue) getPersistedString(def) else def
+        setSummary(color)
+    }
+
+    fun setColor(color: String) {
+        if (!callChangeListener(color)) return
+        this.color = color
+        setSummary(color)
+        persistString(color)
+    }
+}
diff --git a/src/com/cherish/settings/preferences/SecureSettingColorPickerPreference.kt b/src/com/cherish/settings/preferences/SecureSettingColorPickerPreference.kt
new file mode 100644
index 0000000..be9351d
--- /dev/null
+++ b/src/com/cherish/settings/preferences/SecureSettingColorPickerPreference.kt
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2022 FlamingoOS Project
+ *
+ * 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.util.AttributeSet
+
+public class SecureSettingColorPickerPreference @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+): ColorPickerPreference(context, attrs) {
+    init {
+        setPreferenceDataStore(SecureSettingsStore(context.contentResolver))
+    }
+}
diff --git a/src/com/cherish/settings/preferences/SystemSettingColorPickerPreference.kt b/src/com/cherish/settings/preferences/SystemSettingColorPickerPreference.kt
new file mode 100644
index 0000000..9128e2a
--- /dev/null
+++ b/src/com/cherish/settings/preferences/SystemSettingColorPickerPreference.kt
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2022 FlamingoOS Project
+ *
+ * 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.util.AttributeSet
+
+public class SystemSettingColorPickerPreference @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+): ColorPickerPreference(context, attrs) {
+    init {
+        setPreferenceDataStore(SystemSettingsStore(context.contentResolver))
+    }
+}