Android

reveal动画效果的库：EasyReveal

从名字就知道，这是一个提供reveal动画效果的库，它的厉害之处在于可以提供不同尺寸、不同形状的reveal动画，并且还可以在定义它在屏幕任意位置开始和结束动画。

4.1 如何使用？

在build.gradle 中添加如下依赖：

dependencies {
...
implementation 'com.github.Chrisvin:EasyReveal:1.2'
}

然后，xml中，需要添加显示或者隐藏动画的View应该包裹在EasyRevealLinearLayout中：

也可以在代码中添加：

val revealLayout = EasyRevealLinearLayout(this)
// Set the ClipPathProvider that is used to clip the view for reveal animation

revealLayout.clipPathProvider = StarClipPathProvider(numberOfPoints = 6)
// Set the duration taken for reveal animation

revealLayout.revealAnimationDuration = 1500
// Set the duration taken for hide animation

revealLayout.hideAnimationDuration = 2000
// Set listener to get updates during reveal/hide animation

revealLayout.onUpdateListener = object: RevealLayout.OnUpdateListener {
override fun onUpdate(percent: Float) {

        Toast.makeText(this@MainActivity, "Revealed percent: $percent", Toast.LENGTH_SHORT).show()

    }

}
// Start reveal animation

revealLayout.reveal()
// Start hide animation

revealLayout.hide()