migrate to androidX preference dependency

Author: skydoves

app/build.gradle

@@ -22,9 +22,10 @@ android {
 }
 
 dependencies {
-    implementation 'androidx.appcompat:appcompat:1.0.2'
-    implementation 'com.google.android.material:material:1.1.0-alpha02'
-    implementation "com.github.skydoves:elasticviews:2.0.2"
+    implementation "androidx.appcompat:appcompat:1.0.2"
+    implementation "com.google.android.material:material:1.1.0-alpha04"
+    implementation "com.github.skydoves:elasticviews:2.0.3"
+    implementation "androidx.preference:preference:1.1.0-alpha04"
     implementation project(':colorpickerpreference')
 }
 

app/src/main/java/com/skydoves/colorpickerpreferencedemo/PreferenceActivity.java

@@ -17,14 +17,15 @@
 package com.skydoves.colorpickerpreferencedemo;
 
 import android.os.Bundle;
+import androidx.appcompat.app.AppCompatActivity;
 
 /** Developed by skydoves on 2018-02-11. Copyright (c) 2018 skydoves rights reserved. */
-public class PreferenceActivity extends AppCompatPreferenceActivity {
+public class PreferenceActivity extends AppCompatActivity {
 
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
-    getFragmentManager()
+    getSupportFragmentManager()
         .beginTransaction()
         .replace(android.R.id.content, new PreferenceFragment())
         .commit();

app/src/main/java/com/skydoves/colorpickerpreferencedemo/PreferenceFragment.java

@@ -19,35 +19,34 @@
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.os.Bundle;
-import androidx.annotation.Nullable;
+
 import com.skydoves.colorpickerpreference.ColorEnvelope;
 import com.skydoves.colorpickerpreference.ColorListener;
 import com.skydoves.colorpickerpreference.ColorPickerDialog;
 import com.skydoves.colorpickerpreference.ColorPickerPreference;
 import com.skydoves.colorpickerpreference.FlagMode;
 
+import androidx.preference.PreferenceFragmentCompat;
+
 /** Developed by skydoves on 2018-02-11. Copyright (c) 2018 skydoves rights reserved. */
-public class PreferenceFragment extends android.preference.PreferenceFragment {
+public class PreferenceFragment extends PreferenceFragmentCompat {
 
   @Override
-  public void onCreate(@Nullable Bundle savedInstanceState) {
-    super.onCreate(savedInstanceState);
+  public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
     addPreferencesFromResource(R.xml.pref_settings);
     initColorPickerPreference();
   }
 
   /** customizing ColorPreference's ColorPickerDialog */
   private void initColorPickerPreference() {
     ColorPickerPreference colorPickerPreference_toolbar =
-        (ColorPickerPreference)
-            findPreference(getActivity().getString(R.string.ToolbarColorPickerPreference));
+        findPreference(getActivity().getString(R.string.ToolbarColorPickerPreference));
     ColorPickerDialog.Builder builder_toolbar =
         colorPickerPreference_toolbar.getColorPickerDialogBuilder();
     builder_toolbar.setFlagView(new CustomFlag(getActivity(), R.layout.layout_flag));
 
     ColorPickerPreference colorPickerPreference_background =
-        (ColorPickerPreference)
-            findPreference(getActivity().getString(R.string.BackgroundColorPickerPreference));
+        findPreference(getActivity().getString(R.string.BackgroundColorPickerPreference));
     colorPickerPreference_background.setColorPickerDialogBuilder(getCustomBuilder());
   }
 

app/src/main/res/layout/activity_main.xml

@@ -21,7 +21,7 @@
             android:layout_height="0dp"
             android:layout_weight="1"
             android:onClick="example0"
-            app:button_duration="150"
+            app:button_duration="110"
             app:button_scale="0.8"
             app:layout_backgroundColor="@color/background800"
             app:layout_round="20">
@@ -32,6 +32,7 @@
                 android:layout_centerInParent="true"
                 android:padding="5dp"
                 android:text="ColorPicker Example"
+                android:layout_gravity="center"
                 android:textColor="@android:color/white"
                 android:textSize="21sp"
                 android:textStyle="bold" />
@@ -47,7 +48,7 @@
             android:layout_height="0dp"
             android:layout_weight="1"
             android:onClick="example1"
-            app:button_duration="150"
+            app:button_duration="110"
             app:button_scale="0.8"
             app:layout_backgroundColor="@color/background800"
             app:layout_round="20">
@@ -56,8 +57,8 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_centerInParent="true"
-                android:padding="5dp"
                 android:text="ColorPickerDialog Example"
+                android:layout_gravity="center"
                 android:textColor="@android:color/white"
                 android:textSize="21sp"
                 android:textStyle="bold" />
@@ -73,7 +74,7 @@
             android:layout_height="0dp"
             android:layout_weight="1"
             android:onClick="example2"
-            app:button_duration="150"
+            app:button_duration="110"
             app:button_scale="0.8"
             app:layout_backgroundColor="@color/background800"
             app:layout_round="20">
@@ -82,8 +83,8 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_centerInParent="true"
-                android:padding="5dp"
                 android:text="ColorPreference Example"
+                android:layout_gravity="center"
                 android:textColor="@android:color/white"
                 android:textSize="21sp"
                 android:textStyle="bold" />

build.gradle

@@ -1,19 +1,11 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
-
 buildscript {
-
-    ext {
-        supportLibrary = '28.0.0-rc02'
-    }
-    
     repositories {
         google()
         jcenter()
     }
-
     dependencies {
-        classpath "com.android.tools.build:gradle:3.3.0"
-        classpath "com.diffplug.spotless:spotless-plugin-gradle:3.16.0"
+        classpath "com.android.tools.build:gradle:3.3.2"
+        classpath "com.diffplug.spotless:spotless-plugin-gradle:3.20.0"
         classpath "com.novoda:bintray-release:0.9"
     }
 }

colorpickerpreference/build.gradle

@@ -14,7 +14,8 @@ android {
 }
 
 dependencies {
-    implementation "androidx.annotation:annotation:1.0.1"
+    implementation "androidx.annotation:annotation:1.0.2"
+    implementation "androidx.preference:preference:1.1.0-alpha04"
 }
 
 apply from: '../spotless.gradle'

colorpickerpreference/src/main/java/com/skydoves/colorpickerpreference/ColorPickerPreference.java

@@ -22,9 +22,10 @@
 import android.content.res.TypedArray;
 import android.graphics.Color;
 import android.graphics.drawable.Drawable;
-import android.preference.Preference;
 import android.util.AttributeSet;
 import android.view.View;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceViewHolder;
 
 @SuppressWarnings("unused")
 public class ColorPickerPreference extends Preference {
@@ -85,9 +86,9 @@ private void onInit() {
   }
 
   @Override
-  protected void onBindView(View view) {
-    super.onBindView(view);
-    colorBox = view.findViewById(R.id.colorpicker_preference_colorbox);
+  public void onBindViewHolder(PreferenceViewHolder holder) {
+    super.onBindViewHolder(holder);
+    colorBox = holder.findViewById(R.id.colorpicker_preference_colorbox);
     colorBox.setBackgroundColor(
         getPreferenceManager().getSharedPreferences().getInt(getKey(), default_color));
   }