From 65e620a213f627435db3f4af9bb10213d6fbf38f Mon Sep 17 00:00:00 2001
From: Michael Totschnig <michael@totschnig.org>
Date: Sun, 24 May 2020 08:58:04 +0200
Subject: [PATCH] use suppport libraries saved state that works below API 24

---
 library/build.gradle                           |  1 +
 .../ExpandableStickyListHeadersListView.java   | 18 +++---------------
 2 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/library/build.gradle b/library/build.gradle
index 16553036..82af0b38 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -2,6 +2,7 @@ apply plugin: 'com.android.library'
 
 dependencies {
     implementation 'com.android.support:support-annotations:28.0.0'
+    implementation 'com.android.support:customview:28.0.0'
 }
 
 android {
diff --git a/library/src/se/emilsjolander/stickylistheaders/ExpandableStickyListHeadersListView.java b/library/src/se/emilsjolander/stickylistheaders/ExpandableStickyListHeadersListView.java
index 2d91ac05..cdb4e760 100644
--- a/library/src/se/emilsjolander/stickylistheaders/ExpandableStickyListHeadersListView.java
+++ b/library/src/se/emilsjolander/stickylistheaders/ExpandableStickyListHeadersListView.java
@@ -1,10 +1,9 @@
 package se.emilsjolander.stickylistheaders;
 
 import android.content.Context;
-import android.os.Build;
 import android.os.Parcel;
 import android.os.Parcelable;
-import android.support.annotation.RequiresApi;
+import android.support.v4.view.AbsSavedState;
 import android.util.AttributeSet;
 import android.view.View;
 import java.util.ArrayList;
@@ -149,7 +148,7 @@ public void onRestoreInstanceState(Parcelable state) {
         }
     }
 
-    static class SavedState extends BaseSavedState {
+    static class SavedState extends AbsSavedState {
         private List<Long> collapsedHeaderIds;
 
         /**
@@ -160,20 +159,11 @@ static class SavedState extends BaseSavedState {
             this.collapsedHeaderIds = collapsedHeaderIds;
         }
 
-        /**
-         * Constructor called from {@link #CREATOR}
-         */
-        private SavedState(Parcel in) {
-            super(in);
-            readValues(in, null);
-        }
-
         private void readValues(Parcel in, ClassLoader loader) {
             collapsedHeaderIds = new ArrayList<>();
             in.readList(collapsedHeaderIds, loader);
         }
 
-        @RequiresApi(24)
         SavedState(Parcel in, ClassLoader loader) {
             super(in, loader);
             readValues(in, loader);
@@ -188,9 +178,7 @@ public void writeToParcel(Parcel out, int flags) {
         public static final Creator<SavedState> CREATOR = new ClassLoaderCreator<SavedState>() {
             @Override
             public SavedState createFromParcel(Parcel source, ClassLoader loader) {
-                return Build.VERSION.SDK_INT >= 24
-                    ? new SavedState(source, loader)
-                    : new SavedState(source);
+                return new SavedState(source, loader);
             }
 
             @Override