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@mataku
Last active April 26, 2018 10:00
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<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<android.support.constraint.ConstraintLayout
android:id="@+id/main_container"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<!-- 基準の ImageView -->
<ImageView
android:id="@+id/center_droid"
android:layout_width="64dp"
android:layout_height="64dp"
android:background="#8BC34A"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:src="@drawable/amazing_image" />
<!-- 基準の View から 0度の位置に 120dp 離れたところに配置している -->
<ImageView
android:id="@+id/image_1"
android:layout_width="48dp"
android:layout_height="48dp"
android:background="#cddc39"
android:visibility="gone"
app:layout_constraintCircle="@id/center_droid"
app:layout_constraintCircleAngle="0"
app:layout_constraintCircleRadius="120dp"
android:src="@drawable/amazing_image_1" />
<!-- 基準の View から 45度の位置に 120dp 離れたところに配置している -->
<ImageView
android:id="@+id/image_2"
android:layout_width="48dp"
android:layout_height="48dp"
android:background="#FFEB3B"
android:visibility="gone"
app:layout_constraintCircle="@id/center_droid"
app:layout_constraintCircleAngle="45"
app:layout_constraintCircleRadius="120dp"
android:src="@drawable/amazing_image_2 />
<!-- ... -->
</android.support.constraint.ConstraintLayout>
</layout>
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