如何使用 `weight` 修饰符创建可组合函数？

Question

当我有

Column {
    Button(onClick = { /*TODO*/ },) {
        Text("Original Window")
    }
    Button(onClick = { /*TODO*/ }) {
        Text("Fit System Window")
    }
}

我可以创建一个通用的可组合函数

@Composable
fun MyButton(
    onClick: () -> Unit,
    content: @Composable RowScope.() -> Unit
) {
    Button(
        onClick = onClick,
        content = content
    )
}

Column {
    MyButton(onClick = { /*TODO*/ },) {
        Text("Original Window")
    }
    MyButton(onClick = { /*TODO*/ }) {
        Text("Fit System Window")
    }
}

然而当我有

Column {
    Button(onClick = { /*TODO*/ },
        modifier = Modifier.weight(1f)) {
        Text("Original Window")
    }
    Button(onClick = { /*TODO*/ },
        modifier = Modifier.weight(1f)) {
        Text("Fit System Window")
    }
}

下面无法创建

@Composable
fun MyButton(
    onClick: () -> Unit,
    content: @Composable RowScope.() -> Unit
) {
    Button(
        onClick = onClick,
        modifier = Modifier.weight(1f),
        content = content
    )
}

Column {
    MyButton(onClick = { /*TODO*/ },) {
        Text("Original Window")
    }
    MyButton(onClick = { /*TODO*/ }) {
        Text("Fit System Window")
    }
}

这是因为weight修饰符在ColumnScope接口下

如何使用 weight 修饰符创建可组合函数？

Answer 1

看来我只需要从 ColumnScope

创建一个扩展

@Composable
fun ColumnScope.MyButton(
    onClick: () -> Unit,
    content: @Composable RowScope.() -> Unit
) {
    Button(
        onClick = onClick,
        modifier = Modifier.weight(1f),
        content = content
    )
}