質問編集履歴

LoginFragmentのコードを追加

2022/01/03 02:28

投稿

konn_

スコア28

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -180,89 +180,39 @@
-```loginDialogFragment
+```LoginFragment
-package com.example.a
+package com.example.a.Security.Login
-import android.app.AlertDialog
-import android.app.Dialog
 import android.content.ContentValues.TAG
-import android.content.DialogInterface
+import androidx.lifecycle.ViewModelProvider
 import android.os.Bundle
 import android.util.Log
-import androidx.fragment.app.DialogFragment
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
-import androidx.navigation.Navigation
+import androidx.navigation.fragment.NavHostFragment
 import androidx.navigation.fragment.findNavController
+import com.example.a.R
-class loginDialogFragment: DialogFragment() {
+import com.example.a.databinding.LoginFragmentBinding
-    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        return activity?.let {
-            val builder = AlertDialog.Builder(it)
-            builder.setTitle("この機能を利用するには\nユーザー登録が必要です")
-                .setItems(
-                    R.array.aiueo,
-                    DialogInterface.OnClickListener { _, which ->
+import com.google.firebase.auth.FirebaseAuth
-                        when(which) {
-                            0 -> {
-                                findNavController().navigate(R.id.action_profFragment_to_loginFragment)
-                                Log.d(TAG, "登録する")
-                            }
-                            1 -> {
-                                Log.d(TAG, "今はしない")
-                            }
-                        }
-                    })
-            builder.create()
-        } ?: throw IllegalStateException("Activity cannot be null")
-    }
-```
-```LoginFragment
 class LoginFragment : Fragment() {
@@ -288,12 +238,6 @@
-    private val email = binding.email.toString()
-    private val password = binding.password.toString()
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -306,7 +250,7 @@
         binding.forgotpassword.setOnClickListener {
-            forgotpw()
+            pw_forget()
         }
@@ -314,6 +258,86 @@
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        _binding = LoginFragmentBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        viewModel = ViewModelProvider(this).get(LoginViewModel::class.java)
+    }
+    private fun login() {
+        var email = binding.email.text.toString()
+        var password = binding.password.text.toString()
+        if (email.isNotEmpty() && password.isNotEmpty()) {
+            auth.signInWithEmailAndPassword(email, password)
+                .addOnCompleteListener { task ->
+                    if (task.isSuccessful) {
+                        Log.d(TAG, "ログインに成功しました。")
+                    }
+                }
+        }
+    }
+    private fun pw_forget() {
+            val navController = findNavController()
+            navController.navigate(R.id.action_loginFragment_to_signinFragment)
+    }
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
 ```

ファイル名

2022/01/03 02:28

投稿

konn_

スコア28

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -262,7 +262,7 @@
 ```
-```
+```LoginFragment
 class LoginFragment : Fragment() {

コードを追加

2022/01/02 15:25

投稿

konn_

スコア28

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -262,6 +262,62 @@
 ```
+```
+class LoginFragment : Fragment() {
+    companion object {
+        fun newInstance() = LoginFragment()
+    }
+    private lateinit var viewModel: LoginViewModel
+    private lateinit var auth: FirebaseAuth
+    private var _binding: LoginFragmentBinding? = null
+    private val binding get() = _binding!!
+    private val email = binding.email.toString()
+    private val password = binding.password.toString()
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding.login.setOnClickListener {
+            login()
+        }
+        binding.forgotpassword.setOnClickListener {
+            forgotpw()
+        }
+    }
+```
 ### 自分でやったこと

自分でやったことを追加(編集)

2022/01/02 15:24

投稿

konn_

スコア28

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -272,4 +272,4 @@
 「 Unable to instantiate fragment」
-で検索しましたが分かりませんでした。
+などで検索しましたが分かりませんでした。

自分でやったことを追加

2022/01/02 14:32

投稿

konn_

スコア28

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -261,3 +261,15 @@
 ```
+### 自分でやったこと
+「calling Fragment constructor caused an exception」
+や
+「 Unable to instantiate fragment」
+で検索しましたが分かりませんでした。