diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/tests/SampleActivity.java b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/tests/SampleActivity.java
index f316437..ddc6b36 100644
--- a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/tests/SampleActivity.java
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/tests/SampleActivity.java
@@ -1,9 +1,12 @@
 package org.ntlab.radishforandroidstudio.cactusClient.tests;
 
+import android.support.v4.app.Fragment;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
+import android.view.View;
 
 import org.ntlab.radishforandroidstudio.R;
+import org.ntlab.radishforandroidstudio.framework.gameMain.RealTime3DFragment;
 
 public class SampleActivity extends AppCompatActivity {
 
@@ -12,4 +15,29 @@
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_sample);
     }
+
+
+    public void ClickButton(View view){
+        Fragment fragment;
+
+        if(view == findViewById(R.id.button)){
+            fragment = new RealTime3DFragment();
+            getSupportFragmentManager()
+                    .beginTransaction()
+                    .replace(R.id.fragment_field, fragment)
+                    .commit();
+        }
+
+        if(view == findViewById(R.id.button2)){
+            fragment = new StartFragment();
+            getSupportFragmentManager()
+                    .beginTransaction()
+                    .replace(R.id.fragment_field, fragment)
+                    .commit();
+        }
+
+
+    }
+
+
 }