有没有办法找到XCUIElement是否具有焦点? [英] Is there a way to find if the XCUIElement has focus or not?

问题描述

我的一个屏幕具有多个文本字段，我可以从其他不同的屏幕登陆到该屏幕.在每种情况下，我都将一个或另一个文本字段作为第一响应者.我无法编写测试来确定所需的textField是否具有焦点.

One of my screen has multiple text fields, I can land to this screen from different other screens. In each case I am making one or another text field as first responder. I am not able to write test to determine whether the desired textField has focus or not.

当我在控制台中打印文本字段时-

When I print the textfield in console -

输出:{ TextField 0x131171d40:特征:146031247360，关注，{{6.0，108.3}，{402.0，35.0}}，值: }

Output: { TextField 0x131171d40: traits: 146031247360, Focused, {{6.0, 108.3}, {402.0, 35.0}}, value: ​ }

但是我在XCUIElement上找不到任何focus/isFocus属性.

But I could not find any focus/isFocus property on XCUIElement.

有没有办法做到这一点?

Is there a way to achieve this ?

推荐答案

我参加聚会有点晚了:)但是，据我从转储变量XCUIElement所看到的，它具有一个有趣的属性:

I little bit late for the party :) However as far as I can see from dumping the variable XCUIElement it has one interesting property:

属性名称:hasKeyboardFocus

property name: hasKeyboardFocus

属性类型:TB，R

因此，您可以通过以下方式检查元素是否具有焦点:

So you can check if your element has focus the following way:

let hasFocus = (yourTextField.value(forKey: "hasKeyboardFocus") as? Bool) ?? false

注意:您可以转储具有以下扩展名的任何NSObject子类的属性变量:

NB: you can dump the property variables of any NSObject sublass with following extension:

extension NSObject {
    func dumpProperties() {
        var outCount: UInt32 = 0

        let properties = class_copyPropertyList(self.dynamicType, &outCount)
        for index in 0...outCount {
            let property = properties[Int(index)]
            if nil == property {
                continue
            }
            if let propertyName = String.fromCString(property_getName(property)) {
                print("property name: \(propertyName)")
            }
            if let propertyType = String.fromCString(property_getAttributes(property)) {
                print("property type: \(propertyType)")
            }
        }
    }
}

更新:属性转储，Swift 4:*

extension NSObject {
    func dumpProperties() {
        var outCount: UInt32 = 0

        let properties = class_copyPropertyList(type(of: self), &outCount)
        for index in 0...outCount {
            guard let property = properties?[Int(index)] else {
                continue
            }
            let propertyName = String(cString: property_getName(property))
            print("property name: \(propertyName)")
            guard let propertyAttributes = property_getAttributes(property) else {
                continue
            }
            let propertyType = String(cString: propertyAttributes)
            print("property type: \(propertyType)")
        }
    }
}

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