Jetpack Compose Surface 点击波纹没有根据形状剪裁？

Question

我有 3 个表面，如 gif 中所示，当我单击涟漪效应传播时没有考虑表面的形状。

是用什么创建的

@Composable
fun SurfaceClickPropagationExample() {

    // Provides a Context that can be used by Android applications
    val context = AmbientContext.current

    // 🔥 Offset moves a component in x and y axes which can be either positive or negative
    // 🔥🔥 When a component inside surface is offset from original position it gets clipped.
    Box(
        modifier = Modifier
            .fillMaxWidth()
            .wrapContentHeight()
            .clipToBounds()
            .clickable(onClick = {})
    ) {

        Surface(
            modifier = Modifier
                .preferredSize(150.dp)
                .padding(12.dp)
                .clickable(onClick = {
                })
                .clipToBounds(),
            elevation = 10.dp,
            shape = RoundedCornerShape(10.dp),
            color = (Color(0xFFFDD835))
        ) {

            Surface(
                modifier = Modifier
                    .preferredSize(80.dp)
                    .clipToBounds()
                    .offset(x = 50.dp, y = (-20).dp)
                    .clickable(onClick = {
                    }),
                elevation = 12.dp,
                shape = CircleShape,
                color = (Color(0xFF26C6DA))
            ) {

            }
        }

        Surface(
            modifier = Modifier
                .preferredSize(110.dp)
                .padding(12.dp)
                .offset(x = 110.dp, y = 20.dp)
                .clickable(onClick = {}),
            shape = CutCornerShape(10.dp),
            color = (Color(0xFFF4511E)),
            elevation = 8.dp
        ) {}
    }
}

我添加了Modifier.clipToBounds()来检查它是否适用于它，但无论有没有它都不起作用。

Answer 1

撰写版本 1.0.0-beta08 的更新：

使用接受 onClick 的 Surface 的新实验重载。

@ExperimentalMaterialApi
@Composable
fun Surface(
    onClick: () -> Unit,
    modifier: Modifier = Modifier,
    shape: Shape = RectangleShape,
    color: Color = MaterialTheme.colors.surface,
    contentColor: Color = contentColorFor(color),
    border: BorderStroke? = null,
    elevation: Dp = 0.dp,
    interactionSource: MutableInteractionSource = remember { MutableInteractionSource() },
    indication: Indication? = LocalIndication.current,
    enabled: Boolean = true,
    onClickLabel: String? = null,
    role: Role? = null,
    content: () -> Unit
): @ExperimentalMaterialApi @Composable Unit

文档： https://developer.android.com/reference/kotlin/androidx/compose/material/package-summary#Surface(kotlin.Function0,androidx.compose.ui.Modifier,androidx.compose.ui.graphics.Shape, androidx.compose.ui.graphics.Color,androidx.compose.ui.graphics.Color,androidx.compose.foundation.BorderStroke,androidx.compose.ui.unit.Dp,androidx.compose.foundation.interaction.MutableInteractionSource,androidx。 compose.foundation.Indication,kotlin.Boolean,kotlin.String,androidx.compose.ui.semantics.Role,kotlin.Function0)

---

尝试在 Modifier.clickable 之前应用Modifier.clickable Modifier.clip(shape: Shape) 。

在撰写中使用修饰符时，顺序很重要。 首先出现的修饰符元素将首先应用。 （ 文档）

Answer 2

当带有onClick参数的Surface和Card布局都是实验性的时，我正在写这个答案。

如果您不想使用实验性组件，可以尝试将视图包装在Button组件中，如下所示：

    Button(
        onClick = { /* TODO to handle */ },
        shape = /* your shape */,
        colors = ButtonDefaults.buttonColors(backgroundColor = /* your color */),
        elevation = elevation(defaultElevation = 0.dp, pressedElevation = 0.dp)
    ) {
        /* Here you can paste your parent layout like Box, Column, or Row,
 but set max size and horizontal alignment to override the default button's center horizontal alignment */
        Column(
            modifier = Modifier.fillMaxSize(),
            horizontalAlignment = Alignment.Start
        ) {
            // other stuff there
        }
    }

结果如下：

Answer 3

我不太喜欢 Surface 的涟漪效应。

您还可以在使用clickable修改器时剪辑波纹效果：

Row(modifier = Modifier.clickable(
    interactionSource = remember { MutableInteractionSource() },
    indication = rememberRipple(bounded = true),
) {
    onClick(filter)
})