1<android.support.constraint.ConstraintLayout
2 xmlns:android="http://schemas.android.com/apk/res/android"
3 xmlns:app="http://schemas.android.com/apk/res-auto"
4 android:layout_width="match_parent"
5 android:layout_height="match_parent">
6
7 <ImageView
8 android:id="@+id/img_icon"
9 android:layout_width="0dp"
10 android:layout_height="0dp"
11 android:background="@color/dark_red"
12 app:layout_constraintBottom_toBottomOf="parent"
13 app:layout_constraintDimensionRatio="1:1"
14 app:layout_constraintEnd_toEndOf="parent"
15 app:layout_constraintStart_toStartOf="parent"
16 app:layout_constraintTop_toTopOf="parent"
17 app:layout_constraintWidth_percent="0.5" />
18
19</android.support.constraint.ConstraintLayout>