diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a620650
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,208 @@
+### Default AndroidStudio ###
+*.iml
+.gradle
+/local.properties
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+
+### Android ###
+# Built application files
+*.apk
+*.ap_
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio files
+*/build/
+gradle.properties
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# Intellij
+*.iml
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/dictionaries
+.idea/libraries
+
+# Keystore files
+*.jks
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Google Services (e.g. APIs or Firebase)
+google-services.json
+
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
+
+### Android Patch ###
+gen-external-apklibs
+
+### AndroidStudio ###
+# Covers files to be ignored for android development using Android Studio.
+
+# Built application files
+
+# Files for the ART/Dalvik VM
+
+# Java class files
+
+# Generated files
+
+# Gradle files
+.gradle
+
+# Signing files
+.signing/
+
+# Local configuration file (sdk path, etc)
+
+# Proguard folder generated by Eclipse
+
+# Log Files
+
+# Android Studio
+/*/build/
+/*/local.properties
+/*/out
+/*/*/build
+/*/*/production
+*.ipr
+*~
+*.swp
+
+# Android Patch
+
+# External native build folder generated in Android Studio 2.2 and later
+
+# NDK
+obj/
+
+# IntelliJ IDEA
+*.iws
+/out/
+
+# User-specific configurations
+.idea/libraries/
+.idea/.name
+.idea/compiler.xml
+.idea/copyright/profiles_settings.xml
+.idea/encodings.xml
+.idea/misc.xml
+.idea/modules.xml
+.idea/scopes/scope_settings.xml
+.idea/vcs.xml
+.idea/jsLibraryMappings.xml
+.idea/datasources.xml
+.idea/dataSources.ids
+.idea/sqlDataSources.xml
+.idea/dynamic.xml
+.idea/uiDesigner.xml
+
+# Keystore files
+
+# OS-specific files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Legacy Eclipse project files
+.classpath
+.project
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+
+# virtual machine crash logs (Reference: http://www.java.com/en/download/help/error_hotspot.xml)
+hs_err_pid*
+
+## Plugin-specific files:
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Mongo Explorer plugin
+.idea/mongoSettings.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+### AndroidStudio Patch ###
+# Google Services plugin
+
+!/gradle/wrapper/gradle-wrapper.jar
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.TemporaryItems
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
\ No newline at end of file
diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
new file mode 100644
index 0000000..419b2a9
--- /dev/null
+++ b/.idea/caches/build_file_checksums.ser
Binary files differ
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
new file mode 100644
index 0000000..30aa626
--- /dev/null
+++ b/.idea/codeStyles/Project.xml
@@ -0,0 +1,29 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/runConfigurations.xml b/.idea/runConfigurations.xml
new file mode 100644
index 0000000..7f68460
--- /dev/null
+++ b/.idea/runConfigurations.xml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/.gitignore b/app/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/app/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/app/build.gradle b/app/build.gradle
new file mode 100644
index 0000000..093e1a0
--- /dev/null
+++ b/app/build.gradle
@@ -0,0 +1,29 @@
+apply plugin: 'com.android.application'
+
+android {
+ compileSdkVersion 27
+ defaultConfig {
+ applicationId "com.example.nitta_lab_2.myapplication"
+ minSdkVersion 15
+ targetSdkVersion 27
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+ }
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+ }
+ }
+}
+
+dependencies {
+ implementation fileTree(dir: 'libs', include: ['*.jar'])
+ implementation 'com.android.support:appcompat-v7:27.1.1'
+ implementation 'com.android.support.constraint:constraint-layout:1.1.0'
+ implementation 'com.android.support:support-v4:27.1.1'
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'com.android.support.test:runner:1.0.2'
+ androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/app/src/androidTest/java/com/example/nitta_lab_2/myapplication/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/example/nitta_lab_2/myapplication/ExampleInstrumentedTest.java
new file mode 100644
index 0000000..dd5eca5
--- /dev/null
+++ b/app/src/androidTest/java/com/example/nitta_lab_2/myapplication/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package com.example.nitta_lab_2.myapplication;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see Testing documentation
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+ @Test
+ public void useAppContext() {
+ // Context of the app under test.
+ Context appContext = InstrumentationRegistry.getTargetContext();
+
+ assertEquals("com.example.nitta_lab_2.myapplication", appContext.getPackageName());
+ }
+}
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..0225fbc
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/java/com/example/nitta_lab_2/myapplication/MainActivity.java b/app/src/main/java/com/example/nitta_lab_2/myapplication/MainActivity.java
new file mode 100644
index 0000000..1e6faa9
--- /dev/null
+++ b/app/src/main/java/com/example/nitta_lab_2/myapplication/MainActivity.java
@@ -0,0 +1,47 @@
+package com.example.nitta_lab_2.myapplication;
+
+import android.content.Intent;
+import android.support.v4.app.Fragment;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+
+public class MainActivity extends AppCompatActivity {
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+ }
+
+
+ public void ChangeFragment(View view){
+ Fragment fragment;
+ //inportに注意：import android.support.v4.app.Fragment;
+
+ //真ん中押したとき（水色）
+ if(view == findViewById(R.id.button3)){
+ fragment = new MainFragment();
+ getSupportFragmentManager().beginTransaction()
+ .replace(R.id.fragment_place, fragment)
+ .commit();
+ }
+
+ //右押したとき（オレンジ）
+ if(view == findViewById(R.id.button4)){
+ fragment = new SubFragment();
+ getSupportFragmentManager().beginTransaction()
+ .replace(R.id.fragment_place, fragment)
+ .commit();
+ //fragment_placeはFragment範囲のid
+ }
+
+ }
+
+ //左押したとき画面遷移（Activity）
+ public void onClickButton(View view){
+ Intent intent = new Intent(this,SubActivity.class);
+ startActivity(intent);
+ }
+
+}
diff --git a/app/src/main/java/com/example/nitta_lab_2/myapplication/MainFragment.java b/app/src/main/java/com/example/nitta_lab_2/myapplication/MainFragment.java
new file mode 100644
index 0000000..ad9ed19
--- /dev/null
+++ b/app/src/main/java/com/example/nitta_lab_2/myapplication/MainFragment.java
@@ -0,0 +1,18 @@
+package com.example.nitta_lab_2.myapplication;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+
+public class MainFragment extends Fragment {
+
+ @Override
+ public View onCreateView(LayoutInflater inflater, ViewGroup container,
+ Bundle savedInstanceState) {
+ // Inflate the layout for this fragment
+ return inflater.inflate(R.layout.fragment_main, container, false);
+ }
+}
diff --git a/app/src/main/java/com/example/nitta_lab_2/myapplication/SubActivity.java b/app/src/main/java/com/example/nitta_lab_2/myapplication/SubActivity.java
new file mode 100644
index 0000000..798f7b1
--- /dev/null
+++ b/app/src/main/java/com/example/nitta_lab_2/myapplication/SubActivity.java
@@ -0,0 +1,19 @@
+package com.example.nitta_lab_2.myapplication;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+
+public class SubActivity extends AppCompatActivity {
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_sub);
+ }
+ public void onClickButton(View view){
+ Intent intent = new Intent(this,MainActivity.class);
+ startActivity(intent);
+ }
+}
diff --git a/app/src/main/java/com/example/nitta_lab_2/myapplication/SubFragment.java b/app/src/main/java/com/example/nitta_lab_2/myapplication/SubFragment.java
new file mode 100644
index 0000000..1476c46
--- /dev/null
+++ b/app/src/main/java/com/example/nitta_lab_2/myapplication/SubFragment.java
@@ -0,0 +1,19 @@
+package com.example.nitta_lab_2.myapplication;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+
+public class SubFragment extends Fragment {
+
+ @Override
+ public View onCreateView(LayoutInflater inflater, ViewGroup container,
+ Bundle savedInstanceState) {
+ // Inflate the layout for this fragment
+ return inflater.inflate(R.layout.fragment_sub, container, false);
+ }
+
+}
diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..c7bd21d
--- /dev/null
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+
+
+
+
+