diff --git a/app/src/main/java/jp/atled/agileworks/view/ui/login/LoginFragment.kt b/app/src/main/java/jp/atled/agileworks/view/ui/login/LoginFragment.kt
index 48aa9a611bbfc967312f56a2b88f44a1d0795363..a41e633418251f5c26ad43248d42387db81a5909 100644
--- a/app/src/main/java/jp/atled/agileworks/view/ui/login/LoginFragment.kt
+++ b/app/src/main/java/jp/atled/agileworks/view/ui/login/LoginFragment.kt
@@ -49,6 +49,7 @@ class LoginFragment: Fragment() {
     val mOAuthService = OAuthService
     private lateinit var binding: FragmentLoginBinding
     private var shouldClearTaskOnOAuthFailure = false
+    private var disableButtonFlg = false
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         Log.d(TAG, "call onCreateView()")
@@ -84,13 +85,13 @@ class LoginFragment: Fragment() {
                     if (binding.viewmodel?.getAppBackGroundStatus() == true) {
                         Log.d(TAG, "authState.isAuthorized == true")
                         Log.d(TAG,"appBackGroundStatus == true")
+                        disableButtonFlg = true
                         disableLogin()
                         setCookie()
                     } else {
                         // 認証済みの場合、生体/デバイス認証を実行
                         Log.d(TAG, "authState.isAuthorized == true")
                         if (BiometricPrompt.anyAuthenticationAvailable(this.requireContext())) {
-                            disableLogin()
                             Handler().postDelayed({
                                 startBiometricPrompt()
                             }, 0)
@@ -216,7 +217,9 @@ class LoginFragment: Fragment() {
     }
 
     private fun setLoginButtonEnable(host: String, context: String) {
-        loginButton.isEnabled = inputIsValid(host, context)
+        if (!disableButtonFlg) {
+            loginButton.isEnabled = inputIsValid(host, context)
+        }
     }
 
     private fun inputIsValid(host: String, context: String): Boolean {
@@ -256,7 +259,13 @@ class LoginFragment: Fragment() {
         Log.d(TAG, "call startBiometricPrompt()")
         BiometricPrompt.auth(this.requireActivity()) {
             when (it) {
-                BiometricPrompt.Result.Success -> setCookie()
+                BiometricPrompt.Result.Success -> {
+                    requireActivity().runOnUiThread {
+                        disableButtonFlg = true
+                        disableLogin()
+                    }
+                    setCookie()
+                }
                 BiometricPrompt.Result.UnsupportedHardware -> onFailureAuthBiometricPrompt(R.string.auth_biometric_unsupported_hardware)
                 BiometricPrompt.Result.NotHasBiometricsOnHardware -> onFailureAuthBiometricPrompt(R.string.auth_biometric_not_has_biometrics_on_hardware)
                 BiometricPrompt.Result.Cancel -> onFailureAuthBiometricPrompt(R.string.auth_biometric_cancel)
@@ -491,9 +500,11 @@ class LoginFragment: Fragment() {
     companion object {
         // ログイン時に利用するコントロール用 View の ID 群
         val LOGIN_CONTROL_IDS = listOf(
-                R.id.serverUrl,
-                R.id.server_context,
-                R.id.loginButton
+            R.id.serverUrl,
+            R.id.server_context,
+            R.id.loginButton,
+            R.id.clientCertChoiceButton,
+            R.id.qrReadButton
         )
 
         private val SCHEME_PATTERN = Regex("^https?://")