Dear fellow app developers,
I am an ebook publisher.
I have been thinking adding a new function (slider, button or whatever) which allows my readers to adjust the font size. Unfortunately, I haven’t got a clue.
Please advise me if you have any good idea.
Thank you in advance!
Regards,
Henry
How are you making your display text? With display.newText()?
Yes, correct. I use display.newText().
Thank you for asking.
Regards,
Henry
Okay you specify a point size when you call display.newText. You can create a slider which basically returns a percentage value (0 … 100 I think). You can decide to do this several ways. You could say have a minimum point size of say 8 and a max of 24 with 16 being in the middle. Grab the value of the slider * 8 + 8 will give you a range of 8 to 24, but you will get fractional values. If you want to have it more stepped, if the slider is say 0. its 10 point. If its 1-25, then it’s 14 point. If it’s 26-50, it’s 16 point, 51-75, 18 point, 76-99, 20 point, and 100 22 point or something like that.
Rob
Thank you so much, Rob.
I will take your advice and try to work it out.
Thank you again, Rob.
Regards,
Henry
How are you making your display text? With display.newText()?
Yes, correct. I use display.newText().
Thank you for asking.
Regards,
Henry
Okay you specify a point size when you call display.newText. You can create a slider which basically returns a percentage value (0 … 100 I think). You can decide to do this several ways. You could say have a minimum point size of say 8 and a max of 24 with 16 being in the middle. Grab the value of the slider * 8 + 8 will give you a range of 8 to 24, but you will get fractional values. If you want to have it more stepped, if the slider is say 0. its 10 point. If its 1-25, then it’s 14 point. If it’s 26-50, it’s 16 point, 51-75, 18 point, 76-99, 20 point, and 100 22 point or something like that.
Rob
Thank you so much, Rob.
I will take your advice and try to work it out.
Thank you again, Rob.
Regards,
Henry