小编Bab*_*o K的帖子

当尝试调用 Firebase Auth UI 时，使用以下代码，编译器会抛出 java.lang.IllegalStateException: Launcher 尚未初始化。不确定，为什么启动器没有初始化

@Composable
internal fun ProfileUI(profileViewModel: ProfileViewModel) {
    val loginLauncher = rememberLauncherForActivityResult(
        ActivityResultContracts.StartActivityForResult()
    ) { result ->
        if (result != null) {
         //do something
        }
    }
    if (profileViewModel.isAnonymousUser) {
        loginLauncher.launch(profileViewModel.buildLoginIntent())

    } else {


    }
}

    override fun buildLoginIntent(): Intent {

    val authUILayout = AuthMethodPickerLayout.Builder(R.layout.auth_ui)
        .setGoogleButtonId(R.id.btn_gmail)
        .setEmailButtonId(R.id.btn_email)
        .build()

    return AuthUI.getInstance().createSignInIntentBuilder()
        .setIsSmartLockEnabled(!BuildConfig.DEBUG)
        .setAvailableProviders(
            listOf(
                AuthUI.IdpConfig.EmailBuilder().build(),
                AuthUI.IdpConfig.GoogleBuilder().build()
            )
        )
        .enableAnonymousUsersAutoUpgrade()
        .setLogo(R.mipmap.ic_launcher)
        .setAuthMethodPickerLayout(authUILayout)
        .build()
}

    java.lang.IllegalStateException: Launcher has not been initialized
at androidx.activity.compose.ActivityResultLauncherHolder.launch(ActivityResultRegistry.kt:153)
at androidx.activity.compose.ManagedActivityResultLauncher.launch(ActivityResultRegistry.kt:142)
at androidx.activity.result.ActivityResultLauncher.launch(ActivityResultLauncher.java:47)
at …