AnimationUtils

最新推荐文章于 2024-03-30 09:31:37 发布

转载最新推荐文章于 2024-03-30 09:31:37 发布 · 1.2k 阅读

文章标签：

#Api #动画 #android #AnimationUtils

本文详细介绍了Android中AnimationUtils类的功能及用法，包括加载动画资源、创建动画实例等关键方法，并提供了如slide和fade效果的具体实现。

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AnimationUtils(示例,出错代码)

android.view.animation
类 AnimationUtils

java.lang.Object
  android.view.animation.AnimationUtils

public class AnimationUtils
    
     extends Object

Defines common utilities for working with animations.

构造方法摘要
`AnimationUtils()`

方法摘要
`static long`	`currentAnimationTimeMillis()` Returns the current animation time in milliseconds.
`s`tatic Animation	loadAnimation(Context context, int id) Loads an Animation object from a resource
`static Interpolator`	`loadInterpolator(Context context, int id)` Loads an Interpolator object from a resource
`static LayoutAnimationController`	`loadLayoutAnimation(Context context, int id)`
`static Animation`	`makeInAnimation(Context c, boolean fromLeft)` Make an animation for objects becoming visible.
`static Animation`	`makeInChildBottomAnimation(Context c)` Make an animation for objects becoming visible.
`static Animation`	`makeOutAnimation(Context c, boolean toRight)` Make an animation for objects becoming invisible.

从类 java.lang.Object 继承的方法
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

构造方法详细信息

AnimationUtils

public AnimationUtils()

方法详细信息

currentAnimationTimeMillis

public static long currentAnimationTimeMillis()

Returns the current animation time in milliseconds. This time should be used when invoking Animation.setStartTime(long). Refer to SystemClock for more information about the different available clocks. The clock used by this method is not the "wall" clock (it is not System.currentTimeMillis()).

the current animation time in milliseconds

另请参见：

SystemClock

loadAnimation

public static Animation loadAnimation(Context context,
                                      int id)
                               throws Resources.NotFoundException

Loads an Animation object from a resource

参数：

context - Application context used to access resources

id - The resource id of the animation to load

The animation object reference by the specified id

抛出：

Resources.NotFoundException - when the animation cannot be loaded

loadLayoutAnimation

public static LayoutAnimationController loadLayoutAnimation(Context context,
                                                            int id)
                                                     throws Resources.NotFoundException

抛出：

Resources.NotFoundException

makeInAnimation

public static Animation makeInAnimation(Context c,
                                        boolean fromLeft)

Make an animation for objects becoming visible. Uses a slide and fade effect.

参数：

c - Context for loading resources

fromLeft - is the object to be animated coming from the left

The new animation

makeOutAnimation

public static Animation makeOutAnimation(Context c,
                                         boolean toRight)

Make an animation for objects becoming invisible. Uses a slide and fade effect.

参数：

c - Context for loading resources

toRight - is the object to be animated exiting to the right

The new animation

makeInChildBottomAnimation

public static Animation makeInChildBottomAnimation(Context c)

Make an animation for objects becoming visible. Uses a slide up and fade effect.

参数：

c - Context for loading resources

The new animation

loadInterpolator

public static Interpolator loadInterpolator(Context context,
                                            int id)
                                     throws Resources.NotFoundException

Loads an Interpolator object from a resource

参数：

context - Application context used to access resources

id - The resource id of the animation to load

The animation object reference by the specified id

抛出：

Resources.NotFoundException