Android 在将 androidx 生物识别更新为 1.0.0-alpha04 后崩溃

Question

使用 'androidx.biometric:biometric:1.0.0-alpha03' 一切正常，但是当我使用最新的 'androidx.biometric:biometric:1.0.0 构建项目时-alpha04' 并调用 myBiometricPrompt.authenticate(promptInfo) 它会抛出此异常:FragmentManager 已经在执行事务。

这是堆栈跟踪:

 java.lang.IllegalStateException: FragmentManager is already executing transactions
        at androidx.fragment.app.FragmentManagerImpl.ensureExecReady(FragmentManager.java:2207)
        at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2267)
        at androidx.fragment.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:814)
        at androidx.biometric.BiometricPrompt.authenticateInternal(BiometricPrompt.java:525)
        at androidx.biometric.BiometricPrompt.authenticate(BiometricPrompt.java:465)
        at com.my.app.ui.LoginFragment.handleTouchIdAuth(LoginFragment.kt:161)
        at com.my.app.ui.LoginFragment.onViewCreated(LoginFragment.kt:62)
        at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManager.java:1471)
        at androidx.fragment.app.FragmentManagerImpl.addAddedFragments(FragmentManager.java:2646)
        at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2416)
        at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2372)
        at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2273)
        at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManager.java:3273)
        at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:3229)
        at androidx.fragment.app.Fragment.performActivityCreated(Fragment.java:2466)
        at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManager.java:1483)
        at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1784)
        at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManager.java:1852)
        at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManager.java:3269)
        at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:3229)
        at androidx.fragment.app.FragmentController.dispatchActivityCreated(FragmentController.java:201)
        at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:620)
        at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:178)
        at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1391)
        at android.app.Activity.performStart(Activity.java:7157)
        at android.app.ActivityThread.handleStartActivity(ActivityThread.java:2937)
        at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:180)
        at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:165)
        at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:142)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:70)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6669)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

有谁知道发生了什么以及该怎么做？现在，我会坚持使用 1.0.0-alpha03

版本

谢谢!

Answer 1

androidx.biometric:biometric:1.0.0-beta01 中通过提供第二个构造函数解决了该问题。在此版本之前，我通过恢复到 alpha03 解决了这个问题，但现在有一个实际的解决方案可用。

您可以找到 beta01 发行说明 here

We’ve introduced a second constructor for BiometricPrompt that allows it to be hosted in a Fragment (as opposed to the existing constructor, which requires a FragmentActivity).

您可以找到新的 BiometricPrompt 构造函数文档 here

BiometricPrompt(Fragment fragment, Executor executor, BiometricPrompt.AuthenticationCallback callback)

要修复，请按照以下简单步骤操作:

1. 更改您的 build.gradle 以使用生物识别版本 1.0.0-beta01

2. 使用新的构造函数。简而言之，将第一个参数更改为您的 fragment 而不是 Activity 。请参阅下面的代码更改:

   val biometricPrompt = BiometricPrompt(activity!!, executor, callback)
   // Change the above line to the below line
   val biometricPrompt = BiometricPrompt(this, executor, callback)