activity_attendclass.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/background1"
    tools:layout_editor_absoluteX="-21dp"
    tools:layout_editor_absoluteY="-13dp">


    <ImageView
        android:id="@+id/imageView9"
        android:layout_width="match_parent"
        android:layout_height="609dp"

        android:layout_marginBottom="24dp"
        android:background="@drawable/whitecircle"

        app:layout_constraintBottom_toBottomOf="@+id/textView2"
        app:srcCompat="@color/white"
        tools:ignore="MissingConstraints"
        tools:layout_editor_absoluteX="-15dp" />



    <TextView
        android:id="@+id/textView8"
        android:layout_width="52dp"
        android:layout_marginTop="740dp"
        android:layout_marginStart="170dp"
        android:layout_height="52dp"
        android:background="@drawable/baseline_cancel_24"
        android:fontFamily="sans-serif-medium"

android:clickable="true"
        android:onClick="cancel"
        android:textColor="@color/black"
        android:textSize="20dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="MissingConstraints" />

    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="184dp"
        android:layout_height="191dp"
        android:layout_marginTop="182dp"
        android:layout_marginStart="113dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="@+id/imageView9"
        app:layout_constraintTop_toTopOf="@+id/textView5"
        tools:ignore="MissingConstraints"
        tools:srcCompat="@mipmap/ic_launcher_round" />

    <TextView
        android:id="@+id/textView5"
        android:layout_width="113dp"
        android:layout_height="78dp"
        android:layout_marginBottom="471dp"
        android:fontFamily="sans-serif-medium"
        android:gravity="center"
android:layout_marginTop="104dp"
        android:layout_marginStart="145dp"
        android:text="00:00"
        android:textColor="@color/black"
        android:textSize="25dp"
        app:layout_constraintBottom_toBottomOf="@+id/imageView9"

        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="MissingConstraints" />

    <TextView
        android:id="@+id/textView17"
        android:layout_width="260dp"
        android:layout_height="87dp"
        android:layout_marginStart="75dp"
        android:layout_marginTop="60dp"

        android:fontFamily="sans-serif-medium"
        android:gravity="center"
        android:text="Muhammad Ahmad"
        android:textColor="@color/black"

        android:textSize="25dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="MissingConstraints"
        tools:layout_editor_absoluteY="2dp" />

    <TextView
        android:id="@+id/textView15"
        android:layout_width="69dp"
        android:layout_height="64dp"
        android:layout_marginTop="674dp"
        android:layout_marginStart="33dp"
        android:layout_marginBottom="52dp"
        android:background="@drawable/mute"
        android:fontFamily="sans-serif-medium"
        android:gravity="center"
        android:textColor="@color/black"
        android:textSize="25dp"
        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintEnd_toStartOf="@+id/textView14"
        app:layout_constraintHorizontal_bias="0.466"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="MissingConstraints" />

    <TextView
        android:id="@+id/textView14"
        android:layout_width="71dp"
        android:layout_height="61dp"
        android:background="@drawable/sound"
        android:fontFamily="sans-serif-medium"
        android:gravity="center"
        android:layout_marginTop="674dp"
        android:layout_marginStart="150dp"

        android:textColor="@color/black"
        android:textSize="25dp"
        app:layout_constraintBottom_toTopOf="@+id/textView8"

        app:layout_constraintStart_toStartOf="@+id/textView2"
        tools:ignore="MissingConstraints" />

    <TextView
        android:id="@+id/joinbuttonn"
        android:layout_width="72dp"
        android:layout_height="66dp"
        android:layout_marginBottom="48dp"
        android:background="@drawable/pause"
        android:fontFamily="sans-serif-medium"
        android:gravity="center"
        android:layout_marginTop="674dp"
        android:layout_marginStart="279dp"
        android:textColor="@color/black"
        android:textSize="25dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.698"
        app:layout_constraintStart_toEndOf="@+id/textView2"
        tools:ignore="MissingConstraints" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="161dp"
        android:layout_height="67dp"
        android:fontFamily="sans-serif-medium"
        android:text="________"
        android:textColor="#9D9E9E"
        android:textSize="40dp"
        app:layout_constraintBottom_toTopOf="@+id/textView14"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="MissingConstraints" />


</RelativeLayout>