diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index a7e0780..0e44469 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -21,13 +21,13 @@
             android:theme="@style/ThemeFullscreen" />
 
         <activity
-            android:name="com.github.florent37.camerafragment.sample.MainActivityCustoms"
+            android:name="com.github.florent37.camerafragment.sample.CameraFragmentMainActivityCustoms"
             android:screenOrientation="portrait"
             android:theme="@style/ThemeFullscreen" >
         </activity>
 
         <activity
-            android:name="com.github.florent37.camerafragment.sample.MainActivity"
+            android:name="com.github.florent37.camerafragment.sample.CameraFragmentMainActivity"
             android:screenOrientation="portrait"
             android:theme="@style/ThemeFullscreen" >
             <intent-filter>
diff --git a/app/src/main/java/com/github/florent37/camerafragment/sample/MainActivity.java b/app/src/main/java/com/github/florent37/camerafragment/sample/CameraFragmentMainActivity.java
similarity index 98%
rename from app/src/main/java/com/github/florent37/camerafragment/sample/MainActivity.java
rename to app/src/main/java/com/github/florent37/camerafragment/sample/CameraFragmentMainActivity.java
index cf46e05..45d8459 100644
--- a/app/src/main/java/com/github/florent37/camerafragment/sample/MainActivity.java
+++ b/app/src/main/java/com/github/florent37/camerafragment/sample/CameraFragmentMainActivity.java
@@ -34,7 +34,7 @@ import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 
-public class MainActivity extends AppCompatActivity {
+public class CameraFragmentMainActivity extends AppCompatActivity {
 
     public static final String FRAGMENT_TAG = "camera";
     private static final int REQUEST_CAMERA_PERMISSIONS = 931;
@@ -63,7 +63,7 @@ public class MainActivity extends AppCompatActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
+        setContentView(R.layout.camerafragment_activity_main);
         ButterKnife.bind(this);
     }
 
@@ -165,13 +165,13 @@ public class MainActivity extends AppCompatActivity {
             //cameraFragment.setResultListener(new CameraFragmentResultListener() {
             //    @Override
             //    public void onVideoRecorded(String filePath) {
-            //        Intent intent = PreviewActivity.newIntentVideo(MainActivity.this, filePath);
+            //        Intent intent = PreviewActivity.newIntentVideo(CameraFragmentMainActivity.this, filePath);
             //        startActivityForResult(intent, REQUEST_PREVIEW_CODE);
             //    }
 //
             //    @Override
             //    public void onPhotoTaken(byte[] bytes, String filePath) {
-            //        Intent intent = PreviewActivity.newIntentPhoto(MainActivity.this, filePath);
+            //        Intent intent = PreviewActivity.newIntentPhoto(CameraFragmentMainActivity.this, filePath);
             //        startActivityForResult(intent, REQUEST_PREVIEW_CODE);
             //    }
             //});
diff --git a/app/src/main/java/com/github/florent37/camerafragment/sample/MainActivityCustoms.java b/app/src/main/java/com/github/florent37/camerafragment/sample/CameraFragmentMainActivityCustoms.java
similarity index 97%
rename from app/src/main/java/com/github/florent37/camerafragment/sample/MainActivityCustoms.java
rename to app/src/main/java/com/github/florent37/camerafragment/sample/CameraFragmentMainActivityCustoms.java
index c3de537..f42e521 100644
--- a/app/src/main/java/com/github/florent37/camerafragment/sample/MainActivityCustoms.java
+++ b/app/src/main/java/com/github/florent37/camerafragment/sample/CameraFragmentMainActivityCustoms.java
@@ -28,7 +28,7 @@ import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 
-public class MainActivityCustoms extends AppCompatActivity {
+public class CameraFragmentMainActivityCustoms extends AppCompatActivity {
 
     private static final int REQUEST_CAMERA_PERMISSIONS = 931;
     private static final int REQUEST_PREVIEW_CODE = 1001;
@@ -47,7 +47,7 @@ public class MainActivityCustoms extends AppCompatActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main_customs);
+        setContentView(R.layout.camerafragment_activity_main_customs);
         ButterKnife.bind(this);
     }
 
@@ -71,13 +71,13 @@ public class MainActivityCustoms extends AppCompatActivity {
             cameraFragment.setResultListener(new CameraFragmentResultListener() {
                 @Override
                 public void onVideoRecorded(String filePath) {
-                    Intent intent = PreviewActivity.newIntentVideo(MainActivityCustoms.this, filePath);
+                    Intent intent = PreviewActivity.newIntentVideo(CameraFragmentMainActivityCustoms.this, filePath);
                     startActivityForResult(intent, REQUEST_PREVIEW_CODE);
                 }
 
                 @Override
                 public void onPhotoTaken(byte[] bytes, String filePath) {
-                    Intent intent = PreviewActivity.newIntentPhoto(MainActivityCustoms.this, filePath);
+                    Intent intent = PreviewActivity.newIntentPhoto(CameraFragmentMainActivityCustoms.this, filePath);
                     startActivityForResult(intent, REQUEST_PREVIEW_CODE);
                 }
             });
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/camerafragment_activity_main.xml
similarity index 100%
rename from app/src/main/res/layout/activity_main.xml
rename to app/src/main/res/layout/camerafragment_activity_main.xml
diff --git a/app/src/main/res/layout/activity_main_customs.xml b/app/src/main/res/layout/camerafragment_activity_main_customs.xml
similarity index 100%
rename from app/src/main/res/layout/activity_main_customs.xml
rename to app/src/main/res/layout/camerafragment_activity_main_customs.xml
diff --git a/app/src/main/res/layout/sample_widgets.xml b/app/src/main/res/layout/camerafragment_sample_widgets.xml
similarity index 100%
rename from app/src/main/res/layout/sample_widgets.xml
rename to app/src/main/res/layout/camerafragment_sample_widgets.xml