MotionLayout.TransitionListener
public
static
interface
MotionLayout.TransitionListener
android.support.constraint.motion.MotionLayout.TransitionListener |
Added in 2.0
Listener for monitoring events about TransitionLayout.
Summary
Public methods | |
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abstract
void
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onTransitionChange(MotionLayout motionLayout, int startId, int endId, float progress)
Called when a drawer's position changes. |
abstract
void
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onTransitionCompleted(MotionLayout motionLayout, int currentId)
Called when a drawer has settled completely a state. |
abstract
void
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onTransitionStarted(MotionLayout motionLayout, int startId, int endId)
Called when a drawer is about to start a transition. |
abstract
void
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onTransitionTrigger(MotionLayout motionLayout, int triggerId, boolean positive, float progress)
Call when a trigger is fired |
Public methods
onTransitionChange
public abstract void onTransitionChange (MotionLayout motionLayout, int startId, int endId, float progress)
Called when a drawer's position changes.
Parameters | |
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motionLayout |
MotionLayout : The TransitionLayout view that was moved |
startId |
int : the id of the start state (or ConstraintSet). Will be -1 if unknown. |
endId |
int : the id of the end state (or ConstraintSet). |
progress |
float : The progress on this transition, from 0 to 1.
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onTransitionCompleted
public abstract void onTransitionCompleted (MotionLayout motionLayout, int currentId)
Called when a drawer has settled completely a state. The TransitionLayout is interactive at this point.
Parameters | |
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motionLayout |
MotionLayout : Drawer view that is now open |
currentId |
int : the id it has reached
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onTransitionStarted
public abstract void onTransitionStarted (MotionLayout motionLayout, int startId, int endId)
Called when a drawer is about to start a transition. Note. startId may be -1 if starting from an "undefined state"
Parameters | |
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motionLayout |
MotionLayout : The TransitionLayout view that was moved |
startId |
int : the id of the start state (or ConstraintSet). Will be -1 if unknown. |
endId |
int : the id of the end state (or ConstraintSet).
|
onTransitionTrigger
public abstract void onTransitionTrigger (MotionLayout motionLayout, int triggerId, boolean positive, float progress)
Call when a trigger is fired
Parameters | |
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triggerId |
int : The id set set with triggerID |
positive |
boolean : for positive transition edge |