Fix keyboard animation glitch after sending

// FREEBIE

Signal/src/ViewControllers/ConversationView/ConversationInputToolbar.h

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2017 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
 //
 
 NS_ASSUME_NONNULL_BEGIN
@@ -48,8 +48,7 @@ NS_ASSUME_NONNULL_BEGIN
 - (NSString *)messageText;
 - (void)setMessageText:(NSString *_Nullable)value;
 - (void)clearTextMessage;
-
-- (nullable NSString *)textInputPrimaryLanguage;
+- (void)toggleDefaultKeyboard;
 
 - (void)updateFontSizes;
 

Signal/src/ViewControllers/ConversationView/ConversationInputToolbar.m

@@ -199,6 +199,26 @@ static const CGFloat ConversationInputToolbarBorderViewHeight = 0.5;
     [self.inputTextView.undoManager removeAllActions];
 }
 
+- (void)toggleDefaultKeyboard
+{
+    // Primary language is nil for the emoji keyboard.
+    if (!self.inputTextView.textInputMode.primaryLanguage) {
+        // Stay on emoji keyboard after sending
+        return;
+    }
+
+    // Otherwise, we want to toggle back to default keyboard if the user had the numeric keyboard present.
+
+    // Momentarily switch to a non-default keyboard, else reloadInputViews
+    // will not affect the displayed keyboard. In practice this isn't perceptable to the user.
+    // The alternative would be to dismiss-and-pop the keyboard, but that can cause a more pronounced animation.
+    self.inputTextView.keyboardType = UIKeyboardTypeNumbersAndPunctuation;
+    [self.inputTextView reloadInputViews];
+
+    self.inputTextView.keyboardType = UIKeyboardTypeDefault;
+    [self.inputTextView reloadInputViews];
+}
+
 - (void)setShouldShowVoiceMemoButton:(BOOL)shouldShowVoiceMemoButton
 {
     if (_shouldShowVoiceMemoButton == shouldShowVoiceMemoButton) {
@@ -827,11 +847,6 @@ static const CGFloat ConversationInputToolbarBorderViewHeight = 0.5;
     [self.attachmentView viewWillDisappear:animated];
 }
 
-- (nullable NSString *)textInputPrimaryLanguage
-{
-    return self.inputTextView.textInputMode.primaryLanguage;
-}
-
 @end
 
 NS_ASSUME_NONNULL_END

Signal/src/ViewControllers/ConversationView/ConversationViewController.m

@@ -1394,17 +1394,6 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
 
 #pragma mark - JSQMessagesViewController method overrides
 
-- (void)toggleDefaultKeyboard
-{
-    // Primary language is nil for the emoji keyboard & we want to stay on it after sending
-    if (!self.inputToolbar.textInputPrimaryLanguage) {
-        return;
-    }
-
-    [self dismissKeyBoard];
-    [self popKeyBoard];
-}
-
 #pragma mark - Dynamic Text
 
 /**
@@ -3902,10 +3891,10 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
     [self messageWasSent:message];
 
     if (updateKeyboardState) {
-        [self toggleDefaultKeyboard];
+        [self.inputToolbar toggleDefaultKeyboard];
     }
-    [self clearDraft];
     [self.inputToolbar clearTextMessage];
+    [self clearDraft];
     if (didAddToProfileWhitelist) {
         [self ensureDynamicInteractions];
     }