开启混淆后Jetpack Compose的setContent内异常栈不可读问题

开启代码混淆（minification）后，仅在Compose的setContent代码块内部抛出异常时，异常栈信息会变成混淆后的未知源信息；但在setContent外部抛出异常时，能得到正常可读的异常栈。

混淆配置 #

release {
      isDebuggable = false
      isMinifyEnabled = true
      isShrinkResources = true
      proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
      signingConfig = signingConfigs.getByName(signingCfg)
    }

setContent内抛异常的情况 #

测试代码 #

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContent {
      throw InvalidClassException("Test Exception")
      Content()
    }
  }

得到的混淆后异常栈 #

Caused by: java.io.InvalidClassException: Test Exception
                    at g4.a.h(Unknown Source:31)
                    at h0.c.h(Unknown Source:53)
                    at androidx.compose.ui.platform.k1.a(Unknown Source:24)
                    at s.l0.h(Unknown Source:163)
                    at h0.c.h(Unknown Source:53)
                    at y9.z.b(Unknown Source:151)
                    at androidx.compose.ui.platform.l1.a(Unknown Source:282)
                    at y.v.a(Unknown Source:38)
                    at y.v.h(Unknown Source:15)
                    at h0.c.h(Unknown Source:53)
                    at y9.z.b(Unknown Source:151)
                    at androidx.compose.ui.platform.w0.a(Unknown Source:484)
                    at androidx.compose.ui.platform.f3.a(Unknown Source:170)
                    at androidx.compose.ui.platform.f3.h(Unknown Source:27)
                    at h0.c.h(Unknown Source:53)
                    at y9.z.a(Unknown Source:216)
                    at androidx.compose.ui.platform.f3.a(Unknown Source:144)
                    at androidx.compose.ui.platform.f3.h(Unknown Source:15)
                    at h0.c.h(Unknown Source:53)
                    at d5.a.O(Unknown Source:14)
                    at a0.q.q(Unknown Source:117)
                    at a0.q.k(Unknown Source:10)
                    at a0.x.n(Unknown Source:33)
                    at a0.e2.a(Unknown Source:33)
                    at a0.x.o(Unknown Source:8)
                    at a0.x.g(Unknown Source:2)
                    at androidx.compose.ui.platform.g3.invoke(SourceFile:24)
                    at androidx.compose.ui.platform.AndroidComposeView.setOnViewTreeOwnersAvailable(Unknown Source:6)
                    at androidx.compose.ui.platform.WrappedComposition.g(Unknown Source:8)

setContent外抛异常的情况 #

测试代码 #

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    throw InvalidClassException("Test Exception") // 能得到正常可读的异常栈
    setContent {   
      Content()
    }
  }

结果 #

此时可以得到正常可读的异常栈信息。

已尝试的操作 #

• 更新所有Compose相关依赖至以下版本：

agp = 8.2.0
kotlinCompilerExtensionVersion = "1.5.12"
kotlin = 1.9.23

• 问题仍未解决，目前唯一临时解决办法是设置isMinifyEnabled = false，怀疑该问题与R8/Proguard相关。

内容的提问来源于stack exchange，提问作者Matin Petrulak