Stay organized with collections
Save and categorize content based on your preferences.
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2025-05-15 UTC.
[null,null,["Last updated 2025-05-15 UTC."],[],[],null,["# androidx.constraintlayout.core\n==============================\n\n*** ** * ** ***\n\n[Kotlin](/reference/kotlin/androidx/constraintlayout/core/package-summary \"View this page in Kotlin\") \\|Java\n\nInterfaces\n----------\n\n|----------------------------------------------------------------------------------------------------|---|\n| [ArrayRow.ArrayRowVariables](/reference/androidx/constraintlayout/core/ArrayRow.ArrayRowVariables) | |\n\nClasses\n-------\n\n|----------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------|\n| [ArrayLinkedVariables](/reference/androidx/constraintlayout/core/ArrayLinkedVariables) | Store a set of variables and their values in an array-based linked list. |\n| [ArrayRow](/reference/androidx/constraintlayout/core/ArrayRow) | |\n| [Cache](/reference/androidx/constraintlayout/core/Cache) | Cache for common objects |\n| [GoalRow](/reference/androidx/constraintlayout/core/GoalRow) | |\n| [LinearSystem](/reference/androidx/constraintlayout/core/LinearSystem) | Represents and solves a system of linear equations. |\n| [Metrics](/reference/androidx/constraintlayout/core/Metrics) | Utility class to track metrics during the system resolution |\n| [PriorityGoalRow](/reference/androidx/constraintlayout/core/PriorityGoalRow) | Implements a row containing goals taking in account priorities. |\n| [SolverVariable](/reference/androidx/constraintlayout/core/SolverVariable) | Represents a given variable used in the [linear expression solver](/reference/androidx/constraintlayout/core/LinearSystem). |\n| [SolverVariableValues](/reference/androidx/constraintlayout/core/SolverVariableValues) | Store a set of variables and their values in an array-based linked list coupled with a custom hashmap. |\n\nEnums\n-----\n\n|--------------------------------------------------------------------------------------|-------------------|\n| [SolverVariable.Type](/reference/androidx/constraintlayout/core/SolverVariable.Type) | Type of variables |"]]
