[FIXED] java.lang.ClassCastException: com.compose.MainActivity cannot be cast to androidx.fragment.app.FragmentActivity

Issue

I am trying to integrate BiometricPrompt with Jetpackcompose

Here is a snippet of my code which is called on a button click

val context = LocalContext.current
val biometricPrompt =BiometricPrompt(context as FragmentActivity,ContextCompat.getMainExecutor(context),object : BiometricPrompt.AuthenticationCallback() {.....

The error is context as FragmentActivity, not sure how to and what to cast the context as. I tried Activity, ComponentActivity as well.

As soon as i click the button i get error saying

java.lang.ClassCastException: com.compose.MainActivity cannot be cast to androidx.fragment.app.FragmentActivity

I tried looking in to this as well but it does not work

Solution

According to the doc, BiometricPrompt requires a FragmentActivity.

enter image description here

Check your MainActivity class.
It should extend AppCompatActivity or FragmentActivity instead of ComponentActivity.

Answered By – Gabriele Mariotti

Answer Checked By – Jay B. (FixeMe Admin)

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