фон и логотипы

app/src/main/res/layout/activity_main.xml

@@ -11,7 +11,8 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:orientation="vertical">
-<LinearLayout
+
+        <LinearLayout
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:orientation="horizontal"
@@ -36,7 +37,47 @@
         android:src="@drawable/world" />
 
 </LinearLayout>
+<LinearLayout
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:layout_marginLeft="8.5dp"
+    android:layout_marginRight="8.5dp">
+
+        <Button
+            android:id="@+id/button1"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:background="@drawable/button1"
+            android:layout_marginTop="50dp"
+            android:text="Button" />
 
+    <ImageView
+        android:id="@+id/imageView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:srcCompat="@drawable/key" />
+
+    <Button
+            android:id="@+id/button2"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Button"
+            android:background="@drawable/button2"
+            android:layout_gravity="center_horizontal"
+        android:layout_marginTop="50dp"/>
+
+        <Button
+            android:id="@+id/button3"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Button"
+            android:background="@drawable/button3"
+            android:layout_gravity="center_horizontal"
+            android:layout_marginTop="50dp"/>
+
+</LinearLayout>
     </LinearLayout>
 
 </androidx.constraintlayout.widget.ConstraintLayout>