diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 483db85..b25b3a3 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -36,7 +36,7 @@
             android:name=".MapsActivity"
             android:label="@string/title_activity_maps">
         </activity>
-        <activity android:name=".SignupActivity">
+        <activity android:name=".SignUpActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/SignUpActivity.java b/app/src/main/java/org/ntlab/amaryllis/client/SignUpActivity.java
new file mode 100644
index 0000000..5f8b03e
--- /dev/null
+++ b/app/src/main/java/org/ntlab/amaryllis/client/SignUpActivity.java
@@ -0,0 +1,74 @@
+package org.ntlab.amaryllis.client;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import org.ntlab.amaryllis.client.resources.AccountsRest;
+
+import retrofit2.Retrofit;
+import retrofit2.converter.jackson.JacksonConverterFactory;
+
+public class SignUpActivity extends AppCompatActivity implements TextWatcher {
+    TextView emailTextView;
+    EditText emailEditText;
+    TextView passWordTextView;
+    EditText passWordEditText;
+    TextView nameTextView;
+    EditText nameEditText;
+    Button signUpButton;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_signup);
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("http://nitta-lab-www.is.konan-u.ac.jp/amaryllis/rest/")
+                .addConverterFactory(JacksonConverterFactory.create())
+                .build();
+        final AccountsRest signUpService = retrofit.create(AccountsRest.class);
+        emailEditText = (EditText) findViewById(R.id.editTextTextEmailAddress);
+        passWordEditText = (EditText) findViewById(R.id.editTextTextPassword);
+        nameEditText = (EditText) findViewById(R.id.editTextTextPersonName);
+        emailEditText.addTextChangedListener(this);
+        emailTextView = findViewById(R.id.editTextTextEmailAddress);
+        passWordEditText.addTextChangedListener(this);
+        passWordTextView = findViewById(R.id.editTextTextPassword);
+        nameEditText.addTextChangedListener(this);
+        nameTextView = findViewById(R.id.editTextTextPersonName);
+        signUpButton = (Button)findViewById(R.id.button);
+        signUpButton.setEnabled(false);
+        signUpButton.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                Intent intent = new Intent(SignUpActivity.this,MapsActivity.class);
+                startActivity(intent);
+            }
+        });
+
+    }
+
+    @Override
+    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+
+    }
+
+    @Override
+    public void onTextChanged(CharSequence s, int start, int before, int count) {
+
+    }
+
+    @Override
+    public void afterTextChanged(Editable s) {
+        if(emailTextView.length()>0 && passWordTextView.length()>7 && nameTextView.length()>0 ){
+            signUpButton.setEnabled(true);
+        } else{
+            signUpButton.setEnabled(false);
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/SignupActivity.java b/app/src/main/java/org/ntlab/amaryllis/client/SignupActivity.java
deleted file mode 100644
index 4cd17d0..0000000
--- a/app/src/main/java/org/ntlab/amaryllis/client/SignupActivity.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package org.ntlab.amaryllis.client;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.content.Intent;
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-
-public class SignupActivity extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_signup);
-        Button signupButton = (Button)findViewById(R.id.button);
-        signupButton.setOnClickListener(new View.OnClickListener() {
-            public void onClick(View v) {
-                Intent intent = new Intent(SignupActivity.this,MapsActivity.class);
-                startActivity(intent);
-            }
-        });
-
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/resources/AccountsRest.java b/app/src/main/java/org/ntlab/amaryllis/client/resources/AccountsRest.java
index 38d538e..4a0f4d0 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/resources/AccountsRest.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/resources/AccountsRest.java
@@ -1,19 +1,5 @@
 package org.ntlab.amaryllis.client.resources;
 
-import org.ntlab.amaryllis.client.SignupActivity;
-
-import java.util.List;
-
-import retrofit2.Call;
-import retrofit2.http.DELETE;
-import retrofit2.http.Field;
-import retrofit2.http.FormUrlEncoded;
-import retrofit2.http.GET;
-import retrofit2.http.POST;
-import retrofit2.http.PUT;
-import retrofit2.http.Path;
-import retrofit2.http.Query;
-
 public interface AccountsRest {
 //追記
 
diff --git a/app/src/main/res/layout/activity_signup.xml b/app/src/main/res/layout/activity_signup.xml
index d985cd1..58a6966 100644
--- a/app/src/main/res/layout/activity_signup.xml
+++ b/app/src/main/res/layout/activity_signup.xml
@@ -4,10 +4,10 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".SignupActivity">
+    tools:context=".SignUpActivity">
 
     <EditText
-        android:id="@+id/editTextTextEmailAddress2"
+        android:id="@+id/editTextTextEmailAddress"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:ems="10"
@@ -20,29 +20,29 @@
         app:layout_constraintVertical_bias="0.188" />
 
     <EditText
-        android:id="@+id/editTextTextPassword2"
+        android:id="@+id/editTextTextPassword"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:ems="10"
         android:inputType="textPassword"
         app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="@+id/editTextTextEmailAddress2"
+        app:layout_constraintEnd_toEndOf="@+id/editTextTextEmailAddress"
         app:layout_constraintHorizontal_bias="0.0"
-        app:layout_constraintStart_toStartOf="@+id/editTextTextEmailAddress2"
-        app:layout_constraintTop_toBottomOf="@+id/editTextTextEmailAddress2"
+        app:layout_constraintStart_toStartOf="@+id/editTextTextEmailAddress"
+        app:layout_constraintTop_toBottomOf="@+id/editTextTextEmailAddress"
         app:layout_constraintVertical_bias="0.097" />
 
     <EditText
-        android:id="@+id/editTextTextPersonName2"
+        android:id="@+id/editTextTextPersonName"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:ems="10"
         android:inputType="textPersonName"
         app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="@+id/editTextTextPassword2"
+        app:layout_constraintEnd_toEndOf="@+id/editTextTextPassword"
         app:layout_constraintHorizontal_bias="0.0"
-        app:layout_constraintStart_toStartOf="@+id/editTextTextPassword2"
-        app:layout_constraintTop_toBottomOf="@+id/editTextTextEmailAddress2"
+        app:layout_constraintStart_toStartOf="@+id/editTextTextPassword"
+        app:layout_constraintTop_toBottomOf="@+id/editTextTextEmailAddress"
         app:layout_constraintVertical_bias="0.291" />
 
     <Button
@@ -62,11 +62,11 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="E-mail"
-        app:layout_constraintBottom_toBottomOf="@+id/editTextTextEmailAddress2"
-        app:layout_constraintEnd_toStartOf="@+id/editTextTextEmailAddress2"
+        app:layout_constraintBottom_toBottomOf="@+id/editTextTextEmailAddress"
+        app:layout_constraintEnd_toStartOf="@+id/editTextTextEmailAddress"
         app:layout_constraintHorizontal_bias="0.697"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="@+id/editTextTextEmailAddress2"
+        app:layout_constraintTop_toTopOf="@+id/editTextTextEmailAddress"
         app:layout_constraintVertical_bias="0.0" />
 
     <TextView
@@ -74,11 +74,11 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Password"
-        app:layout_constraintBottom_toBottomOf="@+id/editTextTextPassword2"
-        app:layout_constraintEnd_toStartOf="@+id/editTextTextPassword2"
+        app:layout_constraintBottom_toBottomOf="@+id/editTextTextPassword"
+        app:layout_constraintEnd_toStartOf="@+id/editTextTextPassword"
         app:layout_constraintHorizontal_bias="0.674"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="@+id/editTextTextPassword2"
+        app:layout_constraintTop_toTopOf="@+id/editTextTextPassword"
         app:layout_constraintVertical_bias="0.0" />
 
     <TextView
@@ -86,10 +86,10 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Name"
-        app:layout_constraintBottom_toBottomOf="@+id/editTextTextPersonName2"
-        app:layout_constraintEnd_toStartOf="@+id/editTextTextPersonName2"
+        app:layout_constraintBottom_toBottomOf="@+id/editTextTextPersonName"
+        app:layout_constraintEnd_toStartOf="@+id/editTextTextPersonName"
         app:layout_constraintHorizontal_bias="0.697"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="@+id/editTextTextPersonName2"
+        app:layout_constraintTop_toTopOf="@+id/editTextTextPersonName"
         app:layout_constraintVertical_bias="0.0" />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file