Details
Keys: home, enter, backspace (or delete), forwarddelete, esc, tab, space, up, down,
left, right, pageup, pagedown, end, volumeup, volumedown, playpause, and
combos like cmd+a, shift+tab. Modifiers: cmd, shift, alt (option), ctrl, fn (Globe).
fn alone is a Globe tap. Keys in a combo go down in order: tab+h holds tab, then h.
Replace text in a field: key cmd+a selects all of it, then key backspace deletes it.
iOS keyboard shortcuts (iPad shortcuts; most work on iPhone, check the screen after):
cmd+a select all
alt+backspace delete the previous word
cmd+backspace delete to start of line
shift+left extend selection by one letter
cmd+left / cmd+right go to start / end of line
cmd+shift+left / right select to start / end of line
cmd+up / cmd+down go to start / end of the text
cmd+shift+up / down select to start / end of the text
cmd+c, cmd+v, cmd+z copy, paste, undo
tab / shift+tab next / previous field or focused item
space activate the focused item
esc dismiss menus, suggestions, some dialogs
cmd+l, cmd+f, cmd+r Safari: address bar, find on page, reload
cmd+space Spotlight: then type Files, key enter opens the app
fn+h Home Screen
fn+up App Switcher
fn+c, fn+n Control Center, Notification Center
Full Keyboard Access (user setting, off by default; never turn it on yourself):
tab+f finds an item by name (Enter opens it), tab+b goes back, tab+h lists all
commands, tab/arrows/space move focus and activate. The first Tab focuses the
AssistiveTouch button. A command can do nothing once; check the screen. Never send
ctrl+alt+shift+cmd+s (Emergency SOS) or ctrl+alt+shift+cmd+r (restart).
fn+h only types "h": the iPhone was paired with an older ghosthand whose report
map dropped fn. Forget the Mac on the iPhone and pair again (ghosthand forget --help).
No key mute: the Mute key is a toggle. Use ghosthand mute / unmute.
home is the keyboard Home key (HID consumer Menu): no AssistiveTouch setup. Leaving
an app opened from Spotlight shows Spotlight again; press home once more for the
Home Screen. Press it again if an app was still opening.
No verified global Back key. esc sends Escape, not a guaranteed navigation Back.
pagedown/pageup scroll Safari pages after a tap on the text, not app lists (Settings).
enter sends a message in Messages when the text field has focus.
XCTest mode: home, volumeup, volumedown, enter, backspace, tab, space, and shortcuts
with cmd, shift, ctrl, alt (cmd+space opens Spotlight; cmd+a, cmd+c, cmd+v work in
text fields). Other keys fail with unsupported-in-mode.