Android animation collection playback

companion object {
     /**
      * Animation collection playback mode 1
 */
 fun buttonAnimator (btn: View) {
         var animator = ObjectAnimator.ofFloat( btn_pay , "button" , 100f , 80f , 100f ) // If there is no attribute, it is equivalent to valueAnimator, similar to
 animator. duration = 300
 animator.addUpdateListener { animation ->
 run {
 // var fraction = animation.animatedFraction
 var value: Float = animation.                                                                     animatedValue as Float
                btn.alpha = value / 100
                btn.scaleX = value / 100
                btn.scaleY = value / 100
}
        }
animator.start()            
        
    }

    /**
      * Animation collection playback mode 2
 */
 fun viewAnimator (btn: View) {
         var animator = ValueAnimator.ofFloat( 100f , 80f , 100f )         
        animator.duration = 300
        animator.addUpdateListener { animation ->
run {
//                var fraction = animation.animatedFraction
var value: Float = animation.animatedValue as Float                                            
                btn.alpha = value / 100
                btn.scaleX = value / 100
                btn.scaleY = value / 100
}
        }
animator.start()            
        
    }

    /**
      * Animation collection playback mode three
 */
 fun viewPropertyAnimator (view: View) {
         var PropertyValues1 = PropertyValuesHolder.ofFloat( "alpha" , 1f , 0.5f , 1f )
         val PropertyValues2 = PropertyValuesHolder.ofFloat( "scaleX" , 1f , 0.5f , 1f )
         val PropertyValues3 = PropertyValuesHolder.ofFloat( "scaleY" , 1f , 0.5f , 1f )
         var         animator = ObjectAnimator.ofPropertyValuesHolder(view, PropertyValues1, PropertyValues2, PropertyValues3)
        animator.duration = 300
        animator.start()
    }

    /**
      * Animation set playback mode four
 */
 fun viewSetAnimator (view: View) {
         val animator1 = ObjectAnimator.ofFloat(view , "alpha" , 1f , 0.5f , 1f )
         val animator2 = ObjectAnimator.ofFloat(view , "scaleX " , 1f , 0.5f , 1f )
         val animator3 = ObjectAnimator.ofFloat(view , "scaleY" , 1f , 0.5f , 1f )
         var         animatorSet = AnimatorSet()
        animatorSet.duration = 300
        animatorSet.playTogether(animator1, animator2, animator3)

   animatorSet.start()

  }

fun vibratorAnimator (view: View) { var animator = ObjectAnimator.ofFloat(view , "translationX" , - 100f , 0f , 100f , 0f ) animator.duration = 500 animator.start() Vibrate ( view.context as Activity , 500 ) } /** * final Activity activity : The Activity instance that calls this method long milliseconds : The duration of the vibration, in milliseconds * long[] pattern : Custom vibration mode. The meanings of the numbers in the array are [ Station duration, Vibration duration, Still duration, Vibration duration. . . ] The unit of duration is milliseconds * boolean isRepeat : whether to vibrate repeatedly, if it is true , vibrate repeatedly, if it is false , only vibrate once */ private fun Vibrate (activity: Activity , milliseconds: Long) { val vib = activity.getSystemService(Service .VIBRATOR_SERVICE ) as Vibrator vib.vibrate (milliseconds) } private fun Vibrate (activity: Activity , pattern: LongArray , isRepeat: Boolean) { val vib = activity.getSystemService(Service.VIBRATOR_SERVICE ) as Vibrator vib.vibrate (pattern , if (isRepeat) 1 else - 1 ) }