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            | Openable | A layout that has two states: opened and closed. | 
        
      
     
    Classes
    
      
        
          
          
        
        
          
            | ExploreByTouchHelper | ExploreByTouchHelper is a utility class for implementing accessibility support in custom Views that represent a collection of View-like logical items. | 
          
            | ViewDragHelper | ViewDragHelper is a utility class for writing custom ViewGroups. | 
          
            | ViewDragHelper.Callback | A Callback is used as a communication channel with the ViewDragHelper back to the parent view using it. | 
        
      
     
  
  
  
    
  
 
  
    
      
      
    
    
      
    
    
  
       
    
    
      
    
  
  
  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.
  
  
  
    
      [[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-05-15 UTC."],[],[]]