Never show the empty sticker keyboard.

Signal/src/ViewControllers/ConversationView/ConversationInputToolbar.m

@@ -1105,7 +1105,18 @@ const CGFloat kMaxTextViewHeight = 98;
 - (void)stickerButtonPressed
 {
     OWSLogVerbose(@"");
-    
+
+    __block BOOL hasInstalledStickerPacks;
+    [self.databaseStorage readWithBlock:^(SDSAnyReadTransaction *transaction) {
+        hasInstalledStickerPacks = [StickerManager installedStickerPacksWithTransaction:transaction].count > 0;
+    }];
+    if (!hasInstalledStickerPacks) {
+        // If the keyboard is presented and no stickers are installed,
+        // show the manage stickers view. Do not show the sticker keyboard.
+        [self presentManageStickersView];
+        return;
+    }
+
     [self activateStickerKeyboard];
 }
 

SignalMessaging/ViewControllers/Stickers/StickerKeyboard.swift

@@ -102,17 +102,6 @@ public class StickerKeyboard: UIStackView {
     }
 
     @objc public func wasPresented() {
-        // If there are no recents, default to showing the first sticker pack.
-        if currentPageCollectionView.stickerCount < 1 {
-            selectedStickerPack = stickerPacks.first
-
-            if selectedStickerPack == nil {
-                // If the keyboard is presented and no stickers are
-                // installed, show the manage stickers view.
-                delegate?.presentManageStickersView()
-            }
-        }
-
         updatePageConstraints()
     }
 
@@ -247,7 +236,7 @@ public class StickerKeyboard: UIStackView {
     private var stickerPackCollectionViews = [
         StickerPackCollectionView(),
         StickerPackCollectionView(),
-        StickerPackCollectionView(),
+        StickerPackCollectionView()
     ]
     private var stickerPackCollectionViewConstraints = [NSLayoutConstraint]()