Android之Kotlin实现补间动画-（TweenAnimaion）

╰半夏微凉° 2022-06-09 00:44 234阅读 0赞

## **补间动画（TweenAnimaion）四种常用实现** ##

**1. AlphaAnimation(透明)，实现**

findViewById(R.id.AlphaAnimation).setOnClickListener {
                var alphaAnimation = AlphaAnimation(1.0f, 0.0f)//从全不透明变为全透明
                // 3: 确定持续时间
                alphaAnimation.duration = 2000;
                // 4: 确定Interpolator
                alphaAnimation.interpolator = LinearInterpolator()
                ivSport.startAnimation(alphaAnimation)
            }

**2.RotateAnimation(旋转)，实现**

findViewById(R.id.RotateAnimation).setOnClickListener {
                var rotateAnimation = RotateAnimation(0f, 70f)
                rotateAnimation.duration = 2000;
                rotateAnimation.interpolator = AccelerateDecelerateInterpolator()
                ivSport.startAnimation(rotateAnimation)
    
            }

**3.ScaleAnimation(放大缩小)动画实现**

findViewById(R.id.ScaleAnimation).setOnClickListener {
           //放大五倍
                var scaleAnimation = ScaleAnimation(0f, 5f, 0f, 5f)
                scaleAnimation.duration = 2000;   //显示时长
                scaleAnimation.interpolator = AccelerateDecelerateInterpolator()//动画显示规律
                ivSport.startAnimation(scaleAnimation)
            }

**4.ScaleAnimation(位移)动画实现**

findViewById(R.id.TranslateAnimation).setOnClickListener {
                var transAnimation = TranslateAnimation(-400f, 0f, 0f, 0f)
                transAnimation.duration = 2000;
                transAnimation.interpolator = AccelerateDecelerateInterpolator()
                ivSport.startAnimation(transAnimation)
    
            }

**4.补间动画组合使用**

val mul = findViewById(R.id.MulAnimation);
            mul.setOnClickListener {
                var scaleAnimation = ScaleAnimation(1f, 0.5f, 1f, 0.5f)
                var transAnimation = TranslateAnimation(0f, ivSport.x - mul.width / 2, 0f, mul.y - ivSport.y + mul.height)
                var alphaAnimation = AlphaAnimation(1.0f, 0.0f)//从全不透明变为全透明
                ivSport.startAnimation(alphaAnimation)
                val aniSet = AnimationSet(false)
                aniSet.duration=2000
                aniSet.interpolator= LinearInterpolator()
                aniSet.addAnimation(scaleAnimation)
                aniSet.addAnimation(transAnimation)
                aniSet.addAnimation(alphaAnimation)
                ivSport.startAnimation(aniSet)
            }