android recyclerView 动画有锯齿

如果在 Android `RecyclerView` 中使用默认的动画效果时出现锯齿，可以尝试以下解决方案：

1. 设置 `RecyclerView` 的 `clipToPadding` 属性为 `false`。

<androidx.recyclerview.widget.RecyclerView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clipToPadding="false" />

2. 在 `RecyclerView` 中使用 `ItemDecoration`。

class ItemDecoration : RecyclerView.ItemDecoration() {

    override fun getItemOffsets(
        outRect: Rect,
        view: View,
        parent: RecyclerView,
        state: RecyclerView.State
    ) {
        outRect.set(0, 0, 0, 1) // 设置底部分割线，数值可以根据自己的需求调整
    }

    override fun onDraw(
        canvas: Canvas,
        parent: RecyclerView,
        state: RecyclerView.State
    ) {
        super.onDraw(canvas, parent, state)
        val childCount = parent.childCount
        for (i in 0 until childCount) {
            val child = parent.getChildAt(i)
            val params = child.layoutParams as RecyclerView.LayoutParams
            val left = child.left + params.leftMargin
            val right = child.right + params.rightMargin
            val top = child.bottom + params.bottomMargin
            val bottom = top + 1 // 设置底部分割线，数值可以根据自己的需求调整
            canvas.drawRect(left.toFloat(), top.toFloat(), right.toFloat(), bottom.toFloat(), paint)
        }
    }

    private val paint = Paint().apply {
        color = Color.parseColor("#e5e5e5") // 分割线颜色
        style = Paint.Style.FILL
    }
}

3. 使用第三方库 `RecyclerView Animators`。

dependencies {
    implementation 'jp.wasabeef:recyclerview-animators:4.0.2'
}

val animator = SlideInUpAnimator(OvershootInterpolator(1f))
recyclerView.itemAnimator = animator

希望以上解决方案可以帮助到你。