Compose FontFamily 错误：“必须初始化变量”

Question

我正在尝试将字体添加到我的应用程序中，但是当我在文件中声明字体时，Type.kt我收到此错误消息

变量“iranSansFontFamily”必须初始化

为什么我会收到此错误？

这是代码：

val CustomTypography = Typography(
    bodyLarge = TextStyle(
        fontFamily = iranSansFontFamily,
        fontWeight = FontWeight.Normal,
        fontSize = 16.sp,
        lineHeight = 24.sp,
        letterSpacing = 0.5.sp
    )
)

val iranSansFontFamily = FontFamily(
    Font(R.font.iransans_farsi_medium, FontWeight.Medium),
    Font(R.font.iransans_farsi_bold, FontWeight.Bold)
)

Answer 1

字体系列的声明必须位于版式的顶部，如下所示：

val iranSansFontFamily = FontFamily(
    Font(R.font.iransans_farsi_medium, FontWeight.Medium),
    Font(R.font.iransans_farsi_bold, FontWeight.Bold)
)

val CustomTypography = Typography(
    bodyLarge = TextStyle(
        fontFamily = iranSansFontFamily,
        fontWeight = FontWeight.Normal,
        fontSize = 16.sp,
        lineHeight = 24.sp,
        letterSpacing = 0.5.sp
    )
)