…w height

This reverts commit 081ca7a.

Merge from upstream

Add customizable accessoryView besides messageContainer

…into development

This change provides better handling of keyboard frames. It copes with different values of UIViewController.edgesForExtendedLayout, UIScrollView.contentInsetAdjumentBehavior, view controller containment scenarios and undocked keyboards, and uses cleaner code.

Improvements and fixes in this change:

1. Translates keyboard frame from screen coordinates into view controller coordinates. They aren’t the same thing when containment is involved, or edgesForExtendedLayout does not include .top.

2. Avoids special casing any iPhone models and avoids dealing with safeAreaInsets manually. In iOS 11, UIScrollView may behave differently depending on contentInsetAdjumentBehavior, and the old code incorrectly assumed that the mode is .always (while it is in fact is .automatic) and that no extra safe area insets have been introduced at the bottom edge. Best part, we don’t have to deal with any of this at all, we can offload the logic to UIScrollView itself by looking at the difference between adjustedContentInset and contentInset.

3. Handles view controller containment and undocked keyboards by taking into account an intersection of the scroll view frame and the keyboard’s frame. I think Apple demoes this in one of the WWDC videos, but I couldn’t find which one (or if I’m misremembering). Regardless, this technique makes sure we compute and use a sensible number.

There’s also a couple of extra renames that make the intention of the modified code clearer.

Fix #569 and #789

…n when compare double

Adjust contentInset for the keyboard frame properly

Swift 4.2

fix intrinsic content size for MessageLabel

…eViewController. Moreover, there is an easier method to find the visible section.

It is unnecessary to scroll to the bottom when title view updated.

Example chat screens do not scroll to the bottom on new message insertion.

Accessoryview updates try to fix

…updates

Add didTapAccessoryView Delegate method and adjust layout

…ayButton Views, MessageContent, MessageCollectionView Cells, MessagesCollectionViewFlow Layout.

Fix: Allow required initializator methods @ Views.