Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 36ca35cc authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Automerger Merge Worker
Browse files

Merge "Add haptic feedback to auth ripple animation" into sc-dev am: 8c8765d3 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14666655

Change-Id: Ida4d8577d34a8f11a4252610499cfc509036365c
parents 4c2baf98 8c8765d3

packages/SystemUI/src/com/android/systemui/biometrics/AuthRippleView.kt

+35 −0
Original line number Diff line number Diff line
@@ -23,7 +23,11 @@ import android.content.Context 
import android.graphics.Canvas

import android.graphics.Paint

import android.graphics.PointF

import android.media.AudioAttributes

import android.os.VibrationEffect

import android.os.Vibrator

import android.util.AttributeSet

import android.util.MathUtils

import android.view.View

import android.view.animation.PathInterpolator

import com.android.internal.graphics.ColorUtils
@@ -31,15 +35,26 @@ import com.android.systemui.statusbar.charging.RippleShader 


private const val RIPPLE_ANIMATION_DURATION: Long = 1533

private const val RIPPLE_SPARKLE_STRENGTH: Float = 0.4f

private const val RIPPLE_VIBRATION_PRIMITIVE: Int = VibrationEffect.Composition.PRIMITIVE_LOW_TICK

private const val RIPPLE_VIBRATION_SIZE: Int = 60

private const val RIPPLE_VIBRATION_SCALE_START: Float = 0.6f

private const val RIPPLE_VIBRATION_SCALE_DECAY: Float = -0.1f



/**

 * Expanding ripple effect on the transition from biometric authentication success to showing

 * launcher.

 */

class AuthRippleView(context: Context?, attrs: AttributeSet?) : View(context, attrs) {

    private val vibrator: Vibrator? = context?.getSystemService(Vibrator::class.java)

    private var rippleInProgress: Boolean = false

    private val rippleShader = RippleShader()

    private val ripplePaint = Paint()

    private val rippleVibrationEffect = createVibrationEffect(vibrator)

    private val rippleVibrationAttrs =

            AudioAttributes.Builder()

                    .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)

                    .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION)

                    .build()



    init {

        rippleShader.color = 0xffffffff.toInt() // default color
@@ -95,6 +110,7 @@ class AuthRippleView(context: Context?, attrs: AttributeSet?) : View(context, at 
                visibility = GONE

            }

        })

        vibrate()

        animatorSet.start()

        visibility = VISIBLE

        rippleInProgress = true
@@ -108,4 +124,23 @@ class AuthRippleView(context: Context?, attrs: AttributeSet?) : View(context, at 
        // draw over the entire screen

        canvas?.drawRect(0f, 0f, width.toFloat(), height.toFloat(), ripplePaint)

    }



    private fun vibrate() {

        if (rippleVibrationEffect != null) {

            vibrator?.vibrate(rippleVibrationEffect, rippleVibrationAttrs)

        }

    }



    private fun createVibrationEffect(vibrator: Vibrator?): VibrationEffect? {

        if (vibrator?.areAllPrimitivesSupported(RIPPLE_VIBRATION_PRIMITIVE) == false) {

            return null

        }

        val composition = VibrationEffect.startComposition()

        for (i in 0 until RIPPLE_VIBRATION_SIZE) {

            val scale =

                    RIPPLE_VIBRATION_SCALE_START * MathUtils.exp(RIPPLE_VIBRATION_SCALE_DECAY * i)

            composition.addPrimitive(RIPPLE_VIBRATION_PRIMITIVE, scale, 0 /* delay */)

        }

        return composition.compose()

    }

}