1 package com.android.systemui.surfaceeffects.ripple 2 3 import android.graphics.Color 4 5 /** 6 * A struct that holds the ripple animation configurations. 7 * 8 * <p>This configuration is designed to play a SINGLE animation. Do not reuse or modify the 9 * configuration parameters to play different animations, unless the value has to change within the 10 * single animation (e.g. Change color or opacity during the animation). Note that this data class 11 * is pulled out to make the [RippleAnimation] constructor succinct. 12 */ 13 data class RippleAnimationConfig( 14 val rippleShape: RippleShader.RippleShape = RippleShader.RippleShape.CIRCLE, 15 val duration: Long = 0L, 16 val centerX: Float = 0f, 17 val centerY: Float = 0f, 18 val maxWidth: Float = 0f, 19 val maxHeight: Float = 0f, 20 val pixelDensity: Float = 1f, 21 var color: Int = Color.WHITE, 22 val opacity: Int = RIPPLE_DEFAULT_ALPHA, 23 val sparkleStrength: Float = RIPPLE_SPARKLE_STRENGTH, 24 // Null means it uses default fade parameter values. 25 val baseRingFadeParams: RippleShader.FadeParams? = null, 26 val sparkleRingFadeParams: RippleShader.FadeParams? = null, 27 val centerFillFadeParams: RippleShader.FadeParams? = null, 28 val shouldDistort: Boolean = true 29 ) { 30 companion object { 31 const val RIPPLE_SPARKLE_STRENGTH: Float = 0.3f 32 const val RIPPLE_DEFAULT_COLOR: Int = 0xffffffff.toInt() 33 const val RIPPLE_DEFAULT_ALPHA: Int = 115 // full opacity is 255. 34 } 35 } 36