故事板：如何弹出不全屏

Question

Need a popover when pressed brightness button. Popover need to be NOT FULL-SIZED. I tried several setting but it always present as full-sized screen. What do you think I need to keep it 280x150px?

Answer 1

It sounds like this may be an issue with default iOS popover behavior. Popovers are only used for iPad / Regular Width size classes by default, and are full screen modals on iPhone / Conpact Width size classes.

This WWDC session covers that default behavior, and how to override it to have a popover presentation style on iPhone:

https://developer.apple.com/videos/play/wwdc2014/214/ . (Skip to around 36:15)

Answer 2

我在故事板中看到你把它当作brigthness处理，你可能在准备中写下它的亮度

Answer 3

1. Create childViewController with UIView inside its view with proper constraint and UI element in it that u want to display as popUp.

2. Set background color of childViewController to default color.

3. Add segue from view (eg button , on click of which you have to show childViewController as popup) to childViewController with type Present Modally with presentation "Over current context" and transition type as "Cross Dissolve".

4. Make sure you have added constraint to view inside childViewController view properly so it will display at correct position as popUp.