是否有使用Core Text的UITextView和UITextField的开源重新实现？
苹果的SimpleTextInput具有SimpleCoreTextView和EditableCoreTextView类，其中明确指出：
File: SimpleCoreTextView.m
Abstract:
A view that draws text, reasons about layout, and manages a selection over its text range.
IMPORTANT: Its use of CoreText is naive and inefficient, it deals only with
left-to-right text layout, and it is by no means a good template for any text
editor. It is a toy implementation included only to illustrate how to bind
the system keyboard to some pre-existing text editor.
换句话说，它无法处理阿拉伯语，效率低下。
基于Core Text和
UITextInput系列协议，对于完全实现可编辑文本字段或文本视图，我们有哪些替代方案？ 最佳答案
您可以使用或引用OmniGroup's TextEditor
用于基于Core Text和UITextInput的可编辑文本字段或文本视图的实现
关于ios - 使用Core Text重新实现UITextView和UITextField，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/12479683/