how would i approach this

[pure]

in a view i want a custom view and inside the custom view i want it to be transparent meaning if there was a view behind it the user could see it

View a root view has a picture
over the root view there us viewA and over viewA is ViewB however ViewB is filled with what ever is in the picture in root view

[Rko]

have u tried playing around with the alpha values of each view.

[pure]

Originally Posted by Rko

have u tried playing around with the alpha values of each view.

yes i have, the problem is when i set viewb transparent it transparent and you see viewa not root view and i want to see root view

[Tinyted]

You mind explaining it better? Try to explain in detail what you're trying to do. Like in a list of order. Proper sentences help other people understand a lot of times. I would love to help, but I have no idea what you're trying to do.

[Duncan C]

Originally Posted by pure

yes i have, the problem is when i set viewb transparent it transparent and you see viewa not root view and i want to see root view

You will have to do a couple of things:

Set the opaque property of both view a and view b to FALSE.

Use images with an alpha channel for both view a and view b

Set the portion of view A and view b that you want to transparent. If both view A and view B are the same size and exactly on top of each other, this will be pretty easy. If they are different sizes, or have different origins, you'll have to come up with the math that will let you figure out the coordinates of the areas of both views to make transparent. UIView has a set of methods that let you convert between the coordinate systems of different views. They all start with "convert", and those will let you take a rectangle in the coordinates of the root view and convert it to the coordinates of view A and view b so you can figure out the area of view a and b that you want to make transparent.

[pure]

Originally Posted by Duncan C

You will have to do a couple of things:

Set the opaque property of both view a and view b to FALSE.

Use images with an alpha channel for both view a and view b

Set the portion of view A and view b that you want to transparent. If both view A and view B are the same size and exactly on top of each other, this will be pretty easy. If they are different sizes, or have different origins, you'll have to come up with the math that will let you figure out the coordinates of the areas of both views to make transparent. UIView has a set of methods that let you convert between the coordinate systems of different views. They all start with "convert", and those will let you take a rectangle in the coordinates of the root view and convert it to the coordinates of view A and view b so you can figure out the area of view a and b that you want to make transparent.

I dont understand the third part i set opaque to false and i checked if the images have an alpha channel but the next step i dont quite understand