Kuidas teha, et paigutuses olevad objektid paikneksid ringis?

Objektide ringikujulise paigutuse jaoks saab kasutada ConstraintLayout koos Circular positioning.

<androidx.constraintlayout.widget.ConstraintLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/center_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Keskel"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"/>

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Nupp 1"
        app:layout_constraintCircle="@+id/center_view" // Keskobjekti ID
        app:layout_constraintCircleRadius="150dp" // Ringikujundi raadius
        app:layout_constraintCircleAngle="0" /> // Nurk kraadides (0° - paremal)

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Nupp 2"
        app:layout_constraintCircle="@+id/center_view"
        app:layout_constraintCircleRadius="150dp"
        app:layout_constraintCircleAngle="90" /> // 90° - allapoole

    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Nupp 3"
        app:layout_constraintCircle="@+id/center_view"
        app:layout_constraintCircleRadius="150dp"
        app:layout_constraintCircleAngle="180" /> // 180° - vasakul

    <Button
        android:id="@+id/button4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Nupp 4"
        app:layout_constraintCircle="@+id/center_view"
        app:layout_constraintCircleRadius="150dp"
        app:layout_constraintCircleAngle="270" /> // 270° - üleval

</androidx.constraintlayout.widget.ConstraintLayout>

Omadused ringikujulise paigutuse jaoks:

Omadus	Kirjeldus
app:layout_constraintCircle	Elementi ID, mille ümber ring kujundatakse.
app:layout_constraintCircleRadius	Ringi raadius dp-ides.
app:layout_constraintCircleAngle	Nurk kraadides (0° - paremal keskpunktist, suureneb vastupidises suunas).