Use androidx.preference.Preference (#49)

* Enable MultiDex
* Use PreferenceFragmentCompat

Use PreferenceFragmentCompat instead of Preference.
This will also make the library works with AppCompat and AndroidX

Author: johnchrisdc

ColorPickerPreference/build.gradle

@@ -28,7 +28,7 @@ android {
     compileSdkVersion 28
 
     defaultConfig {
-        minSdkVersion 7
+        minSdkVersion 14
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
@@ -43,6 +43,7 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "androidx.preference:preference:1.1.0"
 }
 
 // Place it at the end of the file

ColorPickerPreference/src/main/java/net/margaritov/preference/colorpicker/ColorPickerPreference.java

@@ -24,12 +24,14 @@
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
-import android.preference.Preference;
 import android.util.AttributeSet;
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 
+import androidx.preference.Preference;
+import androidx.preference.PreferenceViewHolder;
+
 /**
  * A preference type that allows a user to choose a color
  *
@@ -97,9 +99,10 @@ private void init(Context context, AttributeSet attrs) {
     }
 
     @Override
-    protected void onBindView(View view) {
-        super.onBindView(view);
-        mView = view;
+    public void onBindViewHolder(PreferenceViewHolder holder) {
+        super.onBindViewHolder(holder);
+
+        mView = holder.itemView;
         setPreviewColor();
     }
 

Sample/build.gradle

@@ -4,12 +4,16 @@ android {
     compileSdkVersion 28
 
     defaultConfig {
-        minSdkVersion 7
+        minSdkVersion 14
         targetSdkVersion 28
+        multiDexEnabled true
     }
 
 }
 
 dependencies {
     implementation project(':ColorPickerPreference')
+    implementation "androidx.appcompat:appcompat:1.1.0"
+    implementation "androidx.preference:preference:1.1.0"
+
 }

Sample/src/main/AndroidManifest.xml

@@ -6,6 +6,7 @@
         android:icon="@drawable/icon"
         android:label="@string/app_name">
         <activity
+            android:theme="@style/Theme.AppCompat"
             android:name="net.margaritov.preference.colorpicker.Test"
             android:label="@string/app_name">
             <intent-filter>

Sample/src/main/java/net/margaritov/preference/colorpicker/Test.java

@@ -17,27 +17,17 @@
 package net.margaritov.preference.colorpicker;
 
 import android.os.Bundle;
-import android.preference.Preference;
-import android.preference.Preference.OnPreferenceChangeListener;
-import android.preference.PreferenceActivity;
 
-public class Test extends PreferenceActivity {
+import androidx.appcompat.app.AppCompatActivity;
+
+public class Test extends AppCompatActivity {
     /**
      * Called when the activity is first created.
      */
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        addPreferencesFromResource(R.xml.settings);
-        ((ColorPickerPreference) findPreference("color2")).setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
-
-            @Override
-            public boolean onPreferenceChange(Preference preference, Object newValue) {
-                preference.setSummary(ColorPickerPreference.convertToARGB(Integer.valueOf(String.valueOf(newValue))));
-                return true;
-            }
 
-        });
-        ((ColorPickerPreference) findPreference("color2")).setAlphaSliderEnabled(true);
+        setContentView(R.layout.test);
     }
 }

Sample/src/main/java/net/margaritov/preference/colorpicker/TestPreferenceFragment.java

@@ -0,0 +1,25 @@
+package net.margaritov.preference.colorpicker;
+
+import android.os.Bundle;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceFragmentCompat;
+
+public class TestPreferenceFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        addPreferencesFromResource(R.xml.settings);
+
+        findPreference("color2").setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
+
+            @Override
+            public boolean onPreferenceChange(Preference preference, Object newValue) {
+                preference.setSummary(ColorPickerPreference.convertToARGB(Integer.valueOf(String.valueOf(newValue))));
+                return true;
+            }
+
+        });
+        ((ColorPickerPreference) findPreference("color2")).setAlphaSliderEnabled(true);
+    }
+}

Sample/src/main/res/layout/test.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <fragment
+        android:id="@+id/fragment"
+        android:name="net.margaritov.preference.colorpicker.TestPreferenceFragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"/>
+
+</LinearLayout>

build.gradle

@@ -18,5 +18,6 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        google()
     }
 }