Used to enumerate a container's user interface (UI) elements for the purpose of counting, or targeting a sub elements by a child's text or description.
Summary
| Public Constructors | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UiCollection(UiSelector selector) | |||||||||||
| Public Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UiObject | getChildByDescription(UiSelector childPattern, String text) 
            Searches for child UI element within the constraints of this 
             UiSelectorselector. | ||||||||||
| UiObject | getChildByInstance(UiSelector childPattern, int instance) 
            Searches for child UI element within the constraints of this 
             UiSelector. | ||||||||||
| UiObject | getChildByText(UiSelector childPattern, String text) 
            Searches for child UI element within the constraints of this 
             UiSelector. | ||||||||||
| int | getChildCount(UiSelector childPattern) 
            Counts child UI element instances matching the 
             childPatternargument. | ||||||||||
| [Expand] 
            Inherited Methods
            | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|  From class com.android.uiautomator.core.UiObject | |||||||||||
|  From class java.lang.Object | |||||||||||
Public Constructors
Public Methods
public UiObject getChildByDescription (UiSelector childPattern, String text)
Searches for child UI element within the constraints of this UiSelector selector. It looks for any child matching the childPattern argument that has a child UI element anywhere within its sub hierarchy that has content-description text. The returned UiObject will point at the childPattern instance that matched the search and not at the identifying child element that matched the content description.
Parameters
| childPattern | UiSelectorselector of the child pattern to match and return | 
|---|---|
| text | String of the identifying child contents of of the childPattern | 
Returns
- UiObjectpointing at and instance of- childPattern
Throws
| UiObjectNotFoundException | 
|---|
public UiObject getChildByInstance (UiSelector childPattern, int instance)
Searches for child UI element within the constraints of this UiSelector. It looks for any child matching the childPattern argument that has a child UI element anywhere within its sub hierarchy that is at the instance specified. The operation is performed only on the visible items and no scrolling is performed in this case.
Parameters
| childPattern | UiSelectorselector of the child pattern to match and return | 
|---|---|
| instance | int the desired matched instance of this childPattern | 
Returns
- UiObjectpointing at and instance of- childPattern
Throws
| UiObjectNotFoundException | 
|---|
public UiObject getChildByText (UiSelector childPattern, String text)
Searches for child UI element within the constraints of this UiSelector selector. It looks for any child matching the childPattern argument that has a child UI element anywhere within its sub hierarchy that has a text attribute equal to text. The returned UiObject will point at the childPattern instance that matched the search and not at the identifying child element that matched the text attribute.
Parameters
| childPattern | UiSelectorselector of the child pattern to match and return | 
|---|---|
| text | String of the identifying child contents of of the childPattern | 
Returns
- UiObjectpointing at and instance of- childPattern
Throws
| UiObjectNotFoundException | 
|---|
public int getChildCount (UiSelector childPattern)
Counts child UI element instances matching the childPattern argument. The method returns the number of matching UI elements that are currently visible. The count does not include items of a scrollable list that are off-screen.
Parameters
| childPattern | a UiSelectorthat represents the matching child UI elements to count | 
|---|
Returns
- the number of matched childPattern under the current UiCollection
 
 