Satr boshida joylashgan at-belgisi (@) XML tahlilchisi ID qatorining qolgan qismini tahlil qilishi va kengaytirishi va uni ID resursi sifatida aniqlashi kerakligini bildiradi.
Plyus belgisi (+) bu yangi manba nomi ekanligini uni yaratish va resurslarimizga qo‘shishni bildiradi.
android:layout_height="fill_parent"
android:layout_margin="@dimen/activity_horizontal_margin"> android:id="@+id/backbutton" android:text="Back" android:layout_width="wrap_content" android:layout_height="wrap_content" /> android:layout_width="wrap_content" android:textSize="18sp" android:layout_margin="10dp" android:layout_height="wrap_content" /> android:textSize="18sp" android:layout_margin="10dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> android:textSize="18sp" android:layout_margin="10dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> android:textSize="18sp" android:layout_margin="10dp" android:layout_width="wrap_content" android:layout_height="wrap_content" />
android:textSize="18sp" android:layout_margin="10dp" android:layout_gravity="center"
android:layout_width="wrap_content" android:layout_height="wrap_content" /> orientatsiya va tugmalar, matn ko'rinishlari va ichki ko'rinishdagi chiziqli tartib (gorizontal yo'nalishga ega).
Eslatma: Ichki tartiblar bitta turdagi bo'lishi shart emas. Biz, masalan, RelativeLavout-dagi childlardan biri sifatida LinearLayout-ga ega bo'lishimiz mumkin va aksincha.
