diff --git a/app/src/main/java/com/example/cosmosclient/views/SigninActivity.java b/app/src/main/java/com/example/cosmosclient/views/SigninActivity.java
new file mode 100644
index 0000000..2fed0e0
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/views/SigninActivity.java
@@ -0,0 +1,46 @@
+package com.example.cosmosclient.views;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+
+import com.example.cosmosclient.R;
+
+public class SigninActivity extends AppCompatActivity {
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_signin);
+
+ //各種IDを取得
+ Button SigninButton = findViewById(R.id.SigninButton);
+ Button SignupButton = findViewById(R.id.SignupButton);
+ EditText EmailAddressText = findViewById(R.id.EMailAddressText);
+ EditText PasswordText = findViewById(R.id.PasswordText);
+ Button ForgotPasswordButton = findViewById(R.id.ForgotPasswordButton);
+
+ //Sign inボタンの処理
+ SigninButton.setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ Intent intent = new Intent(getApplication(), GroupList.class);
+ startActivity(intent);
+ finish();
+ }
+ });
+
+ //サインアップ画面への遷移処理
+ SignupButton.setOnClickListener(new View.OnClickListener(){
+ @Override
+ public void onClick(View v){
+ Intent intent = new Intent(getApplication(), SignupActivity.class);
+ startActivity(intent);
+ finish();
+ }
+ });
+ }
+}
diff --git a/app/src/main/java/com/example/cosmosclient/views/SignupActivity.java b/app/src/main/java/com/example/cosmosclient/views/SignupActivity.java
new file mode 100644
index 0000000..c738fa8
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/views/SignupActivity.java
@@ -0,0 +1,47 @@
+package com.example.cosmosclient.views;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+
+import com.example.cosmosclient.R;
+
+public class SignupActivity extends AppCompatActivity {
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_signup);
+
+ //各種idを取得
+ Button LoginButton = findViewById(R.id.LoginButton);
+ Button MakeAccountButton = findViewById(R.id.MakeAccountButton);
+ EditText EmailAddressText = findViewById(R.id.EMailAddressText);
+ EditText PasswordText = findViewById(R.id.PasswordText);
+ EditText ConfirmPasswordText = findViewById(R.id.ConfirmPasswordText);
+
+ //Make Accountボタンの処理
+ MakeAccountButton.setOnClickListener(new View.OnClickListener(){
+ @Override
+ public void onClick(View v){
+ Intent intent = new Intent(getApplication(), GroupList.class);
+ startActivity(intent);
+ finish();
+ }
+ });
+
+ //サインイン画面への遷移処理
+ LoginButton.setOnClickListener(new View.OnClickListener(){
+ @Override
+ public void onClick(View v){
+ Intent intent = new Intent(getApplication(),SigninActivity.class);
+ startActivity(intent);
+ finish();
+ }
+ });
+
+ }
+}
diff --git a/app/src/main/res/drawable/borderless_button.xml b/app/src/main/res/drawable/borderless_button.xml
new file mode 100644
index 0000000..7a4684f
--- /dev/null
+++ b/app/src/main/res/drawable/borderless_button.xml
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\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_signin.xml b/app/src/main/res/layout/activity_signin.xml
new file mode 100644
index 0000000..7416c05
--- /dev/null
+++ b/app/src/main/res/layout/activity_signin.xml
@@ -0,0 +1,156 @@
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diff --git a/app/src/main/res/layout/activity_signup.xml b/app/src/main/res/layout/activity_signup.xml
new file mode 100644
index 0000000..3088668
--- /dev/null
+++ b/app/src/main/res/layout/activity_signup.xml
@@ -0,0 +1,154 @@
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\ No newline at end of file