android - Unresolved reference : MasterKey

Question

我正在尝试遵循此处给出的示例:
https://developer.android.com/topic/security/data
我在我的 gradle 中包含了所需的库:

implementation "androidx.security:security-crypto:1.0.0"

// For Identity Credential APIs
implementation "androidx.security:security-identity-credential:1.0.0-alpha02"

然而，当我尝试使用代码时:

val mainKey = MasterKey.Builder(applicationContext)
    .setKeyScheme(MasterKey.KeyScheme.AES256_GCM)
    .build()

我得到 Unresolved reference :MasterKey 错误。图书馆有那个课吗？
提前致谢。

Answer 1

将库升级到最新版本(撰写本文时为 1.1.0-alpha03)

implementation "androidx.security:security-crypto:1.1.0-alpha03"

来自 release note , MasterKey在 1.1.0-alpha01 版本中添加。

Version 1.1.0-alpha01
...
New MasterKey class provides more options for keys, also deprecating MasterKeys to support new features and versions of Android that do not have KeyGenParamSpec.