如何快速去除inputView下的灰色层

Question

I'm trying to leave the background of my Inputview transparent but I only get it gray.

The code is:

    let fakeField : UITextField = UITextField(frame: CGRect.zero)
    //1
    InputViewCollection = InputView(frame: CGRect(x: 0, y: 0, width: 0, height: 216)) //Intialize custom input view
    InputViewCollection?.delegate = self //delegate
    InputViewCollection?.dataSource = self //datasource

    //2
    InputViewCollection?.backgroundColor = UIColor.clear
    self.fakeField.inputView = InputViewCollection //Assign input view
    self.fakeField.keyboardAppearance = .default
    self.view.addSubview(self.fakeField)

How can I leave transparent background of a inputview?

Thanks

Answer 1

When using inputView , you have to use the width of the standard keyboard. However, you can set an empty view as the inputView , and set your custom keyboard as the inputAccessoryView instead. This doesn't have a grey background. The solution would be:

self.fakeField.inputView = UIView() // Set an empty, zero-sized view as inputView, in order to remove the standard keyboard
self.fakeField.inputAccessoryView = InputViewCollection // Set your custom keyboard this way instead

Answer 2

尝试像InputViewCollection?.alpha = 0.0一样设置背景视图的 alpha 值

Answer 3

inputViewController s and inputView s seem to have this gray background. However if you use inputAccessoryViewController or inputAccessoryView , then the background is clear.