Package icyllis.modernui.transition

Class VisibilityPropagation

java.lang.Object
icyllis.modernui.transition.TransitionPropagation
icyllis.modernui.transition.VisibilityPropagation
Direct Known Subclasses:
CircularPropagation, SidePropagation
public abstract class VisibilityPropagation extends TransitionPropagation
Base class for TransitionPropagations that care about View Visibility and the center position of the View.

  • Constructor Details

    • VisibilityPropagation

      public VisibilityPropagation()

  • Method Details

    • captureValues

      public void captureValues(@Nonnull TransitionValues values)
      Description copied from class: TransitionPropagation
      Captures the values in the start or end scene for the properties that this transition propagation monitors. These values are then passed as the startValues or endValues structure in a later call to TransitionPropagation.getStartDelay(ViewGroup, Transition, TransitionValues, TransitionValues). The main concern for an implementation is what the properties are that the transition cares about and what the values are for all of those properties. The start and end values will be compared later during the TransitionPropagation.getStartDelay(ViewGroup, Transition, TransitionValues, TransitionValues). method to determine the start delay.

      Subclasses must implement this method. The method should only be called by the transition system; it is not intended to be called from external classes.

      Specified by:
      captureValues in class TransitionPropagation
      Parameters:
      values - The holder for any values that the Transition wishes to store. Values are stored in the values field of this TransitionValues object and are keyed from a String value. For example, to store a view's rotation value, a transition might call transitionValues.values.put("appname:transitionname:rotation", view.getRotation()). The target view will already be stored in the transitionValues structure when this method is called.

    • getPropagationProperties

      public String[] getPropagationProperties()
      Description copied from class: TransitionPropagation
      Returns the set of property names stored in the TransitionValues object passed into TransitionPropagation.captureValues(TransitionValues) that this transition propagation cares about for the purposes of preventing duplicate capturing of property values.

      A TransitionPropagation must override this method to prevent duplicate capturing of values and must contain at least one

      Specified by:
      getPropagationProperties in class TransitionPropagation
      Returns:
      An array of property names as described in the class documentation for TransitionValues.

    • getViewVisibility

      public int getViewVisibility(TransitionValues values)
      Returns View.getVisibility() for the View at the time the values were captured.
      Parameters:
      values - The TransitionValues captured at the start or end of the Transition.
      Returns:
      View.getVisibility() for the View at the time the values were captured.

    • getViewX

      public int getViewX(TransitionValues values)
      Returns the View's center x coordinate, relative to the screen, at the time the values were captured.
      Parameters:
      values - The TransitionValues captured at the start or end of the Transition.
      Returns:
      the View's center x coordinate, relative to the screen, at the time the values were captured.

    • getViewY

      public int getViewY(TransitionValues values)
      Returns the View's center y coordinate, relative to the screen, at the time the values were captured.
      Parameters:
      values - The TransitionValues captured at the start or end of the Transition.
      Returns:
      the View's center y coordinate, relative to the screen, at the time the values were captured.