*** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayM objectAtIndex:]: index 9223372036854775807 beyond bounds [0 .. 0]' *** First throw call stack:

[HHuiHao]

iOS 11 or higher

[HHuiHao]

解决iOS11换行然后再输入字符后崩溃bug：

_richTextEditor.replaceParagraphsWithLineFeeds = YES;
// 如果想要，图片插入后自动换行
 if (@available(iOS 11.0, *)) {
       [_richTextEditor insertText: @"\n\n"];
} else {
       [_richTextEditor insertText: @"\n"];
}