diff --git a/app/src/main/java/com/example/tampopo_client/views/TestFriendIconActivity.java b/app/src/main/java/com/example/tampopo_client/views/TestFriendIconActivity.java
index 3005198..b70cc11 100644
--- a/app/src/main/java/com/example/tampopo_client/views/TestFriendIconActivity.java
+++ b/app/src/main/java/com/example/tampopo_client/views/TestFriendIconActivity.java
@@ -27,17 +27,19 @@
 //        setContentView(R.layout.activity_test_friend_icon);
 //        String uid = tampopo.getUserId();
 
+        // ルートレイアウトを FrameLayout に（自由配置できる）
         FrameLayout rootLayout = new FrameLayout(this);
+        // 画面密度取得（dp → px 換算用）
         float density = getResources().getDisplayMetrics().density;
 
         //FriendIconView　1個目
         FriendIconView view1 = new FriendIconView(this);
         FrameLayout.LayoutParams params1 = new FrameLayout.LayoutParams(
-                (int) (160*density),
-                (int) (100*density)
+                (int) (160*density), // width in px
+                (int) (100*density) // height in px
         );
         view1.setLayoutParams(params1);
-        view1.setX(100);
+        view1.setX(100); // px単位
         view1.setY(150);
         rootLayout.addView(view1);