From ad825d6803abd32caea0db5c0df82d0f74b5730e Mon Sep 17 00:00:00 2001
From: Grishka <git@grishka.me>
Date: Wed, 20 Apr 2022 15:43:25 +0300
Subject: [PATCH] Fix #43

---
 mastodon/build.gradle                           |  2 +-
 .../fragments/BaseStatusListFragment.java       |  1 -
 .../android/ui/TileGridLayoutManager.java       | 17 +++++++++++++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/mastodon/build.gradle b/mastodon/build.gradle
index f5456dc2..3ceaf30f 100644
--- a/mastodon/build.gradle
+++ b/mastodon/build.gradle
@@ -58,7 +58,7 @@ dependencies {
 	implementation 'me.grishka.litex:dynamicanimation:1.1.0-alpha03'
 	implementation 'me.grishka.litex:viewpager:1.0.0'
 	implementation 'me.grishka.litex:viewpager2:1.0.0'
-	implementation 'me.grishka.appkit:appkit:1.2.1'
+	implementation 'me.grishka.appkit:appkit:1.2.2'
 	implementation 'com.google.code.gson:gson:2.8.9'
 	implementation 'org.jsoup:jsoup:1.14.3'
 	implementation 'com.squareup:otto:1.3.8'
diff --git a/mastodon/src/main/java/org/joinmastodon/android/fragments/BaseStatusListFragment.java b/mastodon/src/main/java/org/joinmastodon/android/fragments/BaseStatusListFragment.java
index 94cf6dd7..c3ead66c 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/fragments/BaseStatusListFragment.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/fragments/BaseStatusListFragment.java
@@ -328,7 +328,6 @@ public abstract class BaseStatusListFragment<T extends DisplayItemsParent> exten
 	public void onConfigurationChanged(Configuration newConfig){
 		super.onConfigurationChanged(newConfig);
 		updateToolbar();
-		list.invalidateItemDecorations();
 	}
 
 	private void updateToolbar(){
diff --git a/mastodon/src/main/java/org/joinmastodon/android/ui/TileGridLayoutManager.java b/mastodon/src/main/java/org/joinmastodon/android/ui/TileGridLayoutManager.java
index ceb58dd9..9062555b 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/ui/TileGridLayoutManager.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/ui/TileGridLayoutManager.java
@@ -2,12 +2,16 @@ package org.joinmastodon.android.ui;
 
 import android.content.Context;
 import android.util.AttributeSet;
+import android.view.View;
 
+import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.GridLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
 public class TileGridLayoutManager extends GridLayoutManager{
 	private static final String TAG="TileGridLayoutManager";
+	private int lastWidth=0;
+
 	public TileGridLayoutManager(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes){
 		super(context, attrs, defStyleAttr, defStyleRes);
 	}
@@ -24,4 +28,17 @@ public class TileGridLayoutManager extends GridLayoutManager{
 	public int getColumnCountForAccessibility(RecyclerView.Recycler recycler, RecyclerView.State state){
 		return 1;
 	}
+
+	@Override
+	public void onMeasure(@NonNull RecyclerView.Recycler recycler, @NonNull RecyclerView.State state, int widthSpec, int heightSpec){
+		int width=View.MeasureSpec.getSize(widthSpec);
+		// Is there a better way to invalidate item decorations when the size changes?
+		if(lastWidth!=width){
+			lastWidth=width;
+			if(getChildCount()>0){
+				((RecyclerView)getChildAt(0).getParent()).invalidateItemDecorations();
+			}
+		}
+		super.onMeasure(recycler, state, widthSpec, heightSpec);
+	}
 }