Calabash iOS：如何使用query命令获取值 [英] Calabash iOS: how to get value using query command

问题描述

我正在尝试使用query命令获取每个类的值。
下面是我得到的示例UI组件：

I'm trying to get the value of every class using query command. Below is the sample UI component that I get:

[0] {
          "class" => "UITabBarSwappableImageView",
             "id" => "imageView-34",
           "rect" => {
        "center_x" => 288,
               "y" => 522,
           "width" => 48,
               "x" => 264,
        "center_y" => 538,
          "height" => 32
    },
          "frame" => {
             "y" => 2,
         "width" => 48,
             "x" => 6,
        "height" => 32
    },
          "label" => nil,
    "description" => "<UITabBarSwappableImageVie....>"

在Android上，我可以用它来列出类组件的所有值：

On Android, I can just use this to list all the values of class components:

query("*", :class)

但是，我似乎无法在iOS上使用相同的命令。
我得到这个结果：

However, I can't seem to use the same command on iOS. I get this as the result:

irb(main):135:0> query "*", :class
[
    [ 0] nil,
    [ 1] nil,
    [ 2] nil,
    [ 3] nil
]

我知道有了标签，我可以使用：accessibilityLabel来完成这项工作，但不是当我试图从类/ id /等中获取价值时。

I know that with the labels, I can use :accessibilityLabel to do the job, but not when I try to get value from class/id/etc.

有人可以解释一下吗？

推荐答案

简答：'class'不是UIView实例上的选择器

Short answer: 'class' is not a selector on UIView instances

长答案：

# query( < look for some views >, < selector on the views found > )

# look for buttons marked 'big button' and call 'isSelected' selector on them
query("button marked:'big button'", :isSelected")

# look for labels marked 'title' and call 'text' selector on them
query("label marked:'title'", :text)

# look for all views and call 'class' selector on them
# whoops!  'class' is not a selector on UIView instances
query "*", :class

退后一步，我想我知道是什么您正在尝试 - 获取可见的全面视图列表。

Taking a step back, I think I know what you are trying to do - get a comprehensive list of views that are visible.

查看 https://github.com/jmoody/briar/blob/master/lib/briar/irbrc.rb

示例输出在此处： https://gist.github.com/jmoody/8031917

不是在查询中调用'class'，而是迭代查询返回的结果并查找'class'键的值。

Instead of calling 'class' in the query, iterate over the results returned by query and look for the value of the 'class' key.

query('*').map { |result| result['class'] }

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