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POIOS Using group opacity control
 

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  1. POIOS Using group opacity control
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    <p>I have a scroll view, containing a view into which I place paired background color imageviews and image imageviews. I use this to present a simple scroll for my users to select an image to transfer to a main imageview display. </p> <p>I have the scrollview background color set to light grey, alpha 0,5, the view set to clearcolor, alpha 1, opaque=true, the background color image set to either black or white, alpha 1, opaque = true and the image is set to alpha 1, opaque=true.</p> <p>The issue I have is that within the app-info.plist, I have added "Renders with group opacity", however regardless of the setting (yes or no), the background and image inherit the opacity of the scrollview.</p> <p><img src="https://i.stack.imgur.com/8WPrN.png" alt="opacity inheritence"></p> <p>In this image, you can see the main image in the background. The light grey area is the scrollview, opaque = true, background = light grey, alpha=0,9 On top is the UIView, opaque=true, background = clear, alpha =1 The dark area around the first thumb is my active image indicator, opaque = true, background = dark grey, alpha =1 The white area (not visible) around the other thumbs is my notactive indicator, opaque=true, background = white, alpha =1 The imageview containing the thumbs is opaque =true, background white, alpha =1</p> <p>However, you can see the background image through the thumbs. I wish the thumbs to be fully opaque and the grey to be alpha 0,5. This current setting of 0,9 is being used simply because this is the best I can make it.</p> <p>This image is taken with the group opacity set to no, however the image is identical with group opacity set to yes.</p> <p>I have seen this done elsewhere on other apps, however apart from a simple statement about what this parameters does,I cannot find simple instructions on how to implement this, as how I am doing must surely be wrong.</p> <p>Any advice is welcome.</p> <p>Regards Chris H</p>
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    1. USChris Hardaker
    1. USChris Hardaker
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    1. COCan you post some code, or maybe screenshots of IB so we can narrow it down?
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      1. USmsgambel
 

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