crystal-wallet-android/app/src/main/res/layout/receive_transaction.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    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="wrap_content"
    android:minWidth="350dp">

    <View
        android:id="@+id/topView"
        android:layout_width="match_parent"
        android:background="@drawable/receive_transaction_top_view"
        android:layout_height="120dp"
        android:layout_marginEnd="0dp"
        android:layout_marginStart="0dp"
        android:layout_marginTop="0dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="24dp"
        android:layout_marginTop="24dp"
        android:text="@string/receive_assets"
        android:textColor="@color/white"
        android:textSize="20sp"
        android:textStyle="bold"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <cy.agorise.crystalwallet.util.CircularImageView
        android:id="@+id/gravatar"
        android:layout_width="60dp"
        android:layout_height="60dp"
        android:src="@drawable/ken_code_gravatar"
        android:layout_marginStart="32dp"
        android:layout_marginTop="90dp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Spinner
        android:id="@+id/spTo"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginEnd="24dp"
        android:layout_marginStart="16dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@id/gravatar"
        app:layout_constraintTop_toTopOf="@id/gravatar" />

    <TextView
        android:id="@+id/tvFromError"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:textColor="@color/red"
        app:layout_constraintEnd_toEndOf="@+id/spTo"
        app:layout_constraintStart_toStartOf="@+id/spTo"
        app:layout_constraintTop_toBottomOf="@+id/topView" />

    <EditText
        android:id="@+id/etAmount"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:layout_marginStart="24dp"
        android:inputType="textMultiLine"
        android:textColor="@color/white"
        android:textSize="20sp"
        android:hint="@string/amount"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/gravatar" />

    <TextView
        android:id="@+id/tvAmountError"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:textColor="@color/red"
        app:layout_constraintEnd_toEndOf="@+id/etAmount"
        app:layout_constraintStart_toStartOf="@+id/etAmount"
        app:layout_constraintTop_toBottomOf="@+id/etAmount" />

    <Spinner
        android:id="@+id/spAsset"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_marginEnd="24dp"
        android:layout_marginTop="8dp"
        android:gravity="top"
        android:inputType="textMultiLine"
        android:textColor="@color/white"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="@+id/etAmount" />

    <View
        android:id="@+id/viewSpinner"
        android:layout_width="0dp"
        android:layout_height="3dp"
        android:layout_marginTop="5dp"
        android:background="@color/gray"
        app:layout_constraintEnd_toEndOf="@+id/spAsset"
        app:layout_constraintStart_toStartOf="@+id/spAsset"
        app:layout_constraintTop_toBottomOf="@id/spAsset" />

    <TextView
        android:id="@+id/tvAssetError"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:textColor="@color/red"
        app:layout_constraintBottom_toBottomOf="@+id/tvAmountError"
        app:layout_constraintEnd_toEndOf="@+id/spAsset"
        app:layout_constraintStart_toStartOf="@+id/spAsset" />

    <ImageView
        android:id="@+id/ivQrCode"
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:layout_marginEnd="24dp"
        android:layout_marginStart="24dp"
        android:layout_marginTop="8dp"
        android:adjustViewBounds="true"
        android:src="@color/gray"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/tvAmountError" />

    <TextView
        android:id="@+id/tvShare"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="24dp"
        android:layout_marginStart="24dp"
        android:layout_marginTop="24dp"
        android:text="@string/share_this_qr"
        android:textSize="18sp"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/ivQrCode" />

    <TextView
        android:id="@+id/tvCancel"
        android:layout_width="wrap_content"
        android:layout_height="20dp"
        android:layout_marginBottom="24dp"
        android:layout_marginEnd="24dp"
        android:text="@string/receive_close"
        android:textSize="18sp"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

</android.support.constraint.ConstraintLayout>