public
abstract
class
VisibilityPropagation
extends TransitionPropagation
| java.lang.Object | ||
| ↳ | android.transition.TransitionPropagation | |
| ↳ | android.transition.VisibilityPropagation | |
 Known Direct Subclasses
|
Base class for TransitionPropagations that care about
View Visibility and the center position of the View.
Public constructors | |
|---|---|
VisibilityPropagation()
|
|
Public methods | |
|---|---|
void
|
captureValues(TransitionValues values)
Captures the values in the start or end scene for the properties that this transition propagation monitors. |
String[]
|
getPropagationProperties()
Returns the set of property names stored in the |
int
|
getViewVisibility(TransitionValues values)
Returns |
int
|
getViewX(TransitionValues values)
Returns the View's center x coordinate, relative to the screen, at the time the values were captured. |
int
|
getViewY(TransitionValues values)
Returns the View's center y coordinate, relative to the screen, at the time the values were captured. |
Inherited methods | |
|---|---|
From
class
android.transition.TransitionPropagation
| |
From
class
java.lang.Object
| |
void captureValues (TransitionValues values)
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
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
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.
| Parameters | |
|---|---|
values |
TransitionValues:
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.
|
String[] getPropagationProperties ()
Returns the set of property names stored in the TransitionValues
object passed into 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
| Returns | |
|---|---|
String[] |
An array of property names as described in the class documentation for
TransitionValues.
|
int getViewVisibility (TransitionValues values)
Returns getVisibility() for the View at the time the values
were captured.
| Parameters | |
|---|---|
values |
TransitionValues:
The TransitionValues captured at the start or end of the Transition. |
| Returns | |
|---|---|
int |
getVisibility() for the View at the time the values
were captured.
|
int getViewX (TransitionValues values)
Returns the View's center x coordinate, relative to the screen, at the time the values were captured.
| Parameters | |
|---|---|
values |
TransitionValues:
The TransitionValues captured at the start or end of the Transition. |
| Returns | |
|---|---|
int |
the View's center x coordinate, relative to the screen, at the time the values were captured. |
int getViewY (TransitionValues values)
Returns the View's center y coordinate, relative to the screen, at the time the values were captured.
| Parameters | |
|---|---|
values |
TransitionValues:
The TransitionValues captured at the start or end of the Transition. |
| Returns | |
|---|---|
int |
the View's center y coordinate, relative to the screen, at the time the values were captured. |
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