问题
I have a UITextView that can be either left-aligned, right-aligned or centered. I noticed that if I right-align the textView, any trailing spaces in any of the lines of text in the textView are ignored. This doesn't happen for leading spaces when left-aligning.
Visually this is what happens (with '-' to visualize a space):
Left-aligned:
-some-text-
Same text right-aligned:
--some-text
Adding more text, brings back the trailing space in the correct position:
-some-text-b
I can't work out why this is or how I can force right-aligned text to present the trailing spaces on the right-hand side. Any suggestions?
来源：https://stackoverflow.com/questions/23296012/how-to-force-trailing-spaces-in-a-right-aligned-uitextview