Copy / Paste - Pre-2000 Unix Style
Forgive me for being archaic, but why not model copy/paste after the old X-windows mouse copy / paste. If there were a small copy icon say in the lower left corner (can turn it off in settings), press it and hold with left thumb to activate copy, then tap once with right hand finger or thumb to select a word, twice for a line (or sentence), and three times for a paragraph. Or, press and drag to select an arbitrary area. Then release the left thumb. The icon changes to paste.
Press and hold the icon again. Select an insertion point with right hand digit (sliding as necessary with magnifying glass showing insertion point), then end contact to complete the insertion. To discard the selection just press the paste icon then release without any 2nd digit contact.
Yes you are.
Double-tapping to determine a starting location is bad.
There is no way in the world that any two taps on an iPhone are in the exect same position.
So, do you use the position of the first tap. Or the second tap?
If you say the second tap, I will lay money that more times than not, your second tap does not land where you think it should land.
Do a test like this . . . type a row of periods across several lines of the notepad. Now, using your double-tap technique, try and place your second tap EXACTLY between the two period you intended.
It will be a 50/50 proposition, at best.
Any cut/paste idea with double-tapping to determine a location is doomed.
Forgive me for being archaic, but why not model copy/paste after the old X-windows mouse copy / paste. If there were a small copy icon say in the lower left corner (can turn it off in settings), press it and hold with left thumb to activate copy, then tap once with right hand finger or thumb to select a word, twice for a line (or sentence), and three times for a paragraph. Or, press and drag to select an arbitrary area. Then release the left thumb. The icon changes to paste.
Press and hold the icon again. Select an insertion point with right hand digit (sliding as necessary with magnifying glass showing insertion point), then end contact to complete the insertion. To discard the selection just press the paste icon then release without any 2nd digit contact.