在Jetpack Compose中可以通过设置OverflowMenu来自动将操作项折叠到溢出菜单中。以下是示例代码：

@Composable
fun AppBar(
    title: String,
    actions: @Composable RowScope.() -> Unit
) {
    TopAppBar(
        title = { Text(text = title) },
        actions = actions,
        overflowMenu = {
            DropdownMenu(
                expanded = false,
                onDismissRequest = { /*TODO*/ },
                toggle = {
                    IconButton(onClick = { /*TODO*/ }) {
                        Icon(Icons.Filled.MoreVert, contentDescription = "Overflow menu")
                    }
                }
            ) {
                actions()
            }
        }
    )
}

@Composable
fun ExampleScreen() {
    Scaffold(
        topBar = {
            AppBar(
                title = "Example Screen",
                actions = {
                    IconButton(onClick = { /*TODO*/ }) {
                        Icon(Icons.Filled.Favorite, contentDescription = "Favorite")
                    }
                    IconButton(onClick = { /*TODO*/ }) {
                        Icon(Icons.Filled.Settings, contentDescription = "Settings")
                    }
                }
            )
        }
    ) {
        // Screen content
    }
}

在这个示例中，我们将OverflowMenu设置为TopAppBar的属性，将操作折叠到溢出菜单中。当用户点击溢出菜单按钮时，DropdownMenu将显示菜单项。