How to create a transparent ViewController?

Question

There are two ViewController in this app

ViewController1 --> Present As Popover --> ViewController2

In ViewController2, it set Background to Black Color, and Alpha to 0.1

When the transition of ViewController2 is finish, background will become 1 alpha

How to keep Background of ViewController2 0.1?

that is a [good material from Apple](https://developer.apple.com/documentation/uikit/uimodalpresentationstyle/1621382-popover) to understand popover-presentation-style... briefly: _"In a horizontally compact environment [a.k.a portrait iPhone], this option behaves the same as `fullScreen`."_ — holex, Dec 13 '17 at 12:55
If you post a link just like that without explanation, it looks like spam, so I rolled back your edit. If it isn't spam, please also explain why the link is useful. — Donald Duck, Dec 13 '17 at 16:37

score 0 · Answer 1 · answered Dec 13 '17 at 12:35

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For transparent view controller pop up set background of view like this

answered Dec 13 '17 at 12:35

Shehata Gamal

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score 0 · Answer 2 · answered Dec 13 '17 at 12:40

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Just select your presenting viewcontroller and select the option Over Current Context and then set background color with some alpha of your presented controller

answered Dec 13 '17 at 12:40

Vikky

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I set to `Over Current Context`, still no different , pls see my video (last sec) – CL So Dec 13 '17 at 13:51

score 0 · Answer 3 · answered Dec 13 '17 at 12:49

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If you present a vie controller modally and gives background colour to clear then it will be transparent until u give some color.

    self.present(viewController2, animated: true, completion: nil)

answered Dec 13 '17 at 12:49

Rahul Dasgupta

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How to create a transparent ViewController?

3 Answers3