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Last updated 2025-05-15 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-05-15 UTC."],[],[],null,["# androidx.constraintlayout.core\n==============================\n\n*** ** * ** ***\n\nKotlin \\|[Java](/reference/androidx/constraintlayout/core/package-summary \"View this page in Java\")\n\nInterfaces\n----------\n\n|-----------------------------------------------------------------------------------------------------------|---|\n| [ArrayRow.ArrayRowVariables](/reference/kotlin/androidx/constraintlayout/core/ArrayRow.ArrayRowVariables) | |\n\nClasses\n-------\n\n|-----------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------|\n| [ArrayLinkedVariables](/reference/kotlin/androidx/constraintlayout/core/ArrayLinkedVariables) | Store a set of variables and their values in an array-based linked list. |\n| [ArrayRow](/reference/kotlin/androidx/constraintlayout/core/ArrayRow) | |\n| [Cache](/reference/kotlin/androidx/constraintlayout/core/Cache) | Cache for common objects |\n| [GoalRow](/reference/kotlin/androidx/constraintlayout/core/GoalRow) | |\n| [LinearSystem](/reference/kotlin/androidx/constraintlayout/core/LinearSystem) | Represents and solves a system of linear equations. |\n| [Metrics](/reference/kotlin/androidx/constraintlayout/core/Metrics) | Utility class to track metrics during the system resolution |\n| [PriorityGoalRow](/reference/kotlin/androidx/constraintlayout/core/PriorityGoalRow) | Implements a row containing goals taking in account priorities. |\n| [SolverVariable](/reference/kotlin/androidx/constraintlayout/core/SolverVariable) | Represents a given variable used in the [linear expression solver](/reference/kotlin/androidx/constraintlayout/core/LinearSystem). |\n| [SolverVariableValues](/reference/kotlin/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/kotlin/androidx/constraintlayout/core/SolverVariable.Type) | Type of variables |"]]
