![]() ![]() Ultimately dependent on how busy the system is overall and how fast the system can service the underlying timer. Theĭefault is set to refresh every 10 ms, but the speed in which your application can refresh frames is Frame refresh delay: You can specify how often to refresh frames of your animation.Animator sets: You can group animations into logical sets that play together or.The animation forwards then backwards repeatedly, until the number of repeats is reached. Specify whether you want the animation to play back in reverse. It reaches the end of a duration and how many times to repeat the animation. Repeat count and behavior: You can specify whether or not to have an animation repeat when.Time interpolation: You can specify how the values for the property are calculated as aįunction of the animation's current elapsed time.Duration: You can specify the duration of an animation.The property animation system lets you define the following characteristics of an You want to animate it for, and what values you want to animate between. Object property that you want to animate, such as an object's position on the screen, how long ![]() (a field in an object) value over a specified length of time. A property animation changes a property's Regardless of whether it draws to the screen or not. You can define an animation to change any object property over time, The property animation system is a robust framework that allows you Create an implementation with older APIs.package_name:transition_class:property_name to avoid collisions TransitionValues.values with the syntax Define a key for storing a property value in The following snippet shows an implementation of the captureStartValues() function: Package_name:transition_name:property_name TransitionValues keys, use the following naming scheme: To ensure that the key for a property value does not conflict with other In your implementation, retrieve these property values and pass them back to the To the view and a Map instance in which you can store the view values you The functionĪrgument is a TransitionValues object that contains a reference The framework calls this function for every view in the starting scene. To pass the starting view values to the framework, implement theįunction. Instead, the framework invokes callback functions that allow a transition toĬapture only the property values it needs and store them in the framework. Since the property values needed for an animationĪre specific to a transition, the transitions framework does not provide every property value For example, a color animation needs color property values, while a movementĪnimation needs position property values. However, a property animation usually needs only a small subset of all the view's property Period of time, so the framework needs to have both the starting and ending values of Transition animations use the property animation system described inĪnimations change a view property from a starting value to an ending value over a specified The following sections explain how to override these functions. Public class CustomTransition extends Transition void captureStartValues(TransitionValues values) void captureEndValues(TransitionValues values) Animator createAnimator(ViewGroup sceneRoot, Override fun captureStartValues(transitionValues: TransitionValues)
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