android-resources - Lint 检查潜在的复数形式？

Question

我的 Lintcheck 提示我的字符串资源。

Potential Plurals res/values/strings.xml Formatting %d followed by words ("Pers"): This should probably be a plural rather than a string

此资源以前是 ，但我将其更改为普通字符串，例如:

<string name="plain_string">%d Pers</string>

我会理解警告，但错误？我该如何解决这个问题？

Answer 1

将字符串转换为复数形式，如描述 here :

<plurals name="plain_string">
    <item quantity="one">%d Pers</item>
    <item quantity="other">%d Pers</item>
</plurals>

在您的代码中，您必须替换

getContext().getString(R.string.plain_string, pers)

经过

getContext().getResources().getQuantityString(R.plurals.plain_string, pers, pers)

或者只是抑制这样的警告:

<string name="plain_string" tools:ignore="PluralsCandidate">%d Pers</string>

Kotlin 扩展处理 null 并自动传入带有格式的字符串的计数:

// note: these methods won't work if you have multiple formats in your string

// plural strings without formatted count ("book", "books")
fun Context.getQuantityString(resId: Int, maybeCount: Int?, defaultCount: Int = 0): String? {
    val count = maybeCount ?: defaultCount
    return resources?.getQuantityString(resId, count, count)
}

// plural strings with formatted count (e.g. "%d book", "%d books")
fun Context.getPluralString(resId: Int, maybeCount: Int?, defaultCount: Int = 0): String? {
    return resources?.getQuantityString(resId, maybeCount ?: defaultCount)
}

// usage
context?.getQuantityString(R.plurals.words_count, nullableCount)