Now I want to create an control strip to control color of back ground and numbers of elements when I slide the strip, which is just as the voice control strip on computer to control the voice, like this picutre:
I want the strip that when I slide the higher the color becomes deeper and the number of certain elements become large.
Shall I get some advice about this?
What code do you already have for changing the color and the number of elements? Whatever it is you need to somehow tie that to being able to control it with a slider. Would this be one slider to control both properties, or a different slider dedicated to each?
I don;t know how to code for it.
I hope one control strip for both of them.
could you give some advice?
Research and test how to change the color and number of objects without using the slider. ONce you have that you will be in a better position to know if you can control either or both of them using a slider.