Add deprecation to LocalItemListAdapter.showFooter(true)

Author: Stypox

app/src/main/java/org/schabi/newpipe/local/BaseLocalListFragment.java

@@ -212,6 +212,8 @@ public void showEmptyState() {
         showListFooter(false);
     }
 
+    @Deprecated(since = "Calling this method with `true` may cause crashes, see "
+            + "https://github.com/TeamNewPipe/NewPipe/pull/12996#pullrequestreview-3713317115")
     @Override
     public void showListFooter(final boolean show) {
         if (itemsList == null) {

app/src/main/java/org/schabi/newpipe/local/LocalItemListAdapter.java

@@ -207,6 +207,8 @@ protected boolean hasHeader() {
         return this.headerSupplier != null;
     }
 
+    @Deprecated(since = "Calling this method with `true` may cause crashes, see "
+            + "https://github.com/TeamNewPipe/NewPipe/pull/12996#pullrequestreview-3713317115")
     public void showFooter(final boolean show) {
         if (DEBUG) {
             Log.d(TAG, "showFooter() called with: show = [" + show + "]");
@@ -217,6 +219,8 @@ public void showFooter(final boolean show) {
 
         showFooter = show;
         if (show) {
+            Log.w(TAG, "Calling LocalItemListAdapter.showFooter(true) may cause crashes, see https"
+                    + "://github.com/TeamNewPipe/NewPipe/pull/12996#pullrequestreview-3713317115");
             notifyItemInserted(sizeConsideringHeader());
         } else {
             notifyItemRemoved(sizeConsideringHeader());