In addition to defining animations directly in Java code, you can use XML files to define animations for reuse.If you want to use XML to animate, first create a new animator folder under the Res directory, and all the property animation XML files should be stored in this folder. Then in the XML file we can use the following three kinds of tags:To set up animations using XML1. Defining animations2. Loading animations using Animatorinflater.loadanimator
which an animation changes, including constant speed, positive acceleration, negative acceleration, and irregular acceleration. Interpolator is a base class that encapsulates all the common methods of interpolator. It has only one method, that is, getinterpolation (float input ), this method maps a point on the timeline to a multiplier to be applied to the transformations of an animation.
coefficient, it will call the currently set timeinterpolator object to calculate an interpolated fraction ). Interpolated fraction maps the past coefficient (elapsed fraction) to a new coefficient that considers setting the time difference. For example, in Figure 2, because the animation is slowly accelerated, the difference coefficient is about 0.15 at t = 10 milliseconds, which is greater than the previous coefficient (elapsedFraction) 0.25 should
Android's animation consists of four types of XML in the Alpha gradient transparency animation effect scale gradient dimension scaling animation effect translate picture conversion position move animation effect rotate Picture transfer rotation animation effect Javacode Alph
Preface
Android supports native animation, which provides great convenience for application developers to develop beautiful interfaces. Sometimes animation is necessary. When you want to implement a sliding special effect, if you are confused about it, you can consider the animation. Maybe the
between animations, starting at how much time the last animation stopped and performing the next animation
Zadjustment[int]
Defines the change in the z order of an animation
0: Keep Z order unchanged1: Keep at the top-1: Remain at the lowest level
Table II
XML node
Function description
Alpha
[Android Animation] Brief Analysis of Animator, Animation, and androidanimator
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Android Animation 3: Property Animation (I)
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, and end value.For example, in Figure 2 , the value of the interpolation function is. 15 when t = Ten Ms. So some time the value of the property will be. X (40-0). or 6.Previous: Android animation specific explanation of an overviewNext: Android Animation specific explanation three
Shopping Cart animation (Android) and shopping cart animation android
Shopping Cart animation (Android)
Preface: When we write shopping mall projects, we usually have the function of adding Shopping Cart. When we add shopping car
Android uses property animation to generate an animation between substitutes
This document describes how to use property animation in Android (I ).
Before Android, there were two types of animations: frame
, "X", CX);/** * ANIM1,ANIM2,ANIM3 run at the same time * ANIM4 then run */animatorset animset = new Animatorset (); Animset.play ( ANIM1). With (ANIM2), Animset.play (ANIM2). with (ANIM3), Animset.play (ANIM4). After (ANIM3); animset.setduration (1000); Animset.start ();}}Two effects were written:First: Use Playtogether two animations to run at the same time, and of course playsequentially run in turn ~ ~Second: Let's say we have a bunch of animations, how to use code control order, for example
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