1 <?xml version="1.0" encoding="utf-8"?>
2 <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 xmlns:app="http://schemas.android.com/apk/res-auto"
4 xmlns:tools="http://schemas.android.com/tools"
5 android:layout_width="match_parent"
6 android:layout_height 7 tools:context=".MainActivity"
8 android:background="#ccc">
9
10 ImageView
11 android:id="@+id/iv"
12 android:layout_width="200dp"
13 android:layout_height="300dp"
14 android:background="@drawable/img1" />
15
16 17 ="@+id/iv2"
18 19 20 android:layout_marginBottom="8dp"
21 android:layout_marginEnd22 ="@drawable/img2"
23 app:layout_constraintBottom_toBottomOf="parent"
24 app:layout_constraintEnd_toEndOf="parent" 25
26 </android.support.constraint.ConstraintLayout>
9
="360dp"
="500dp"
android:src="@drawable/img1"
15 ="#f00"
16 android:scaleType="fitCenter"17
18 >
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