SilentDragonAndroid/app/src/main/res/layout/content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        tools:showIn="@layout/activity_main"
        tools:context="org.myhush.silentdragon.MainActivity">

    <ImageView
            android:layout_width="0dp"
            android:layout_height="150dp" app:srcCompat="?attr/colorPrimary"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toEndOf="parent" android:id="@+id/imageView2"
            app:layout_constraintHorizontal_bias="0.524"
            app:layout_constraintTop_toTopOf="parent"/>
    <TextView
            android:text="Balance"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/lblBalance" android:layout_marginTop="24dp"
            app:layout_constraintTop_toTopOf="parent" app:layout_constraintStart_toStartOf="parent"
            android:layout_marginStart="16dp" app:layout_constraintEnd_toEndOf="parent"
            android:layout_marginEnd="16dp"
            app:layout_constraintBottom_toTopOf="@+id/txtMainBalance" android:textColor="@color/light_grey"/>

    <TextView
        android:id="@+id/txtMainBalance"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="XXXXXX.XXXXXXXX HUSH"
        android:textColor="@android:color/white"
        android:textSize="30sp"
        app:layout_constraintBottom_toTopOf="@+id/txtMainBalanceUSD"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/lblBalance" />

    <TextView
        android:id="@+id/txtMainBalanceUSD"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="154dp"
        android:layout_marginEnd="154dp"
        android:layout_marginBottom="32dp"
        android:text="$0.0"
        android:textColor="@color/light_grey"
        app:layout_constraintBottom_toBottomOf="@+id/imageView2"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/txtMainBalance" />

    <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swiperefresh"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@+id/bottomNav"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView2">

        <ScrollView
            android:id="@+id/scrollViewTxns"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_marginTop="8dp"
            android:layout_marginBottom="16dp"
            android:clipToPadding="false"
            android:fillViewport="true"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="parent">

            <LinearLayout
                android:id="@+id/txList"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">

                <TextView
                    android:id="@+id/textView2"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:padding="16dp"
                    android:text="Past Transactions"
                    android:textSize="18sp"
                    android:textStyle="bold" />
            </LinearLayout>
        </ScrollView>
    </android.support.v4.widget.SwipeRefreshLayout>

    <android.support.constraint.ConstraintLayout
        android:id="@+id/layoutConnect"
        android:layout_width="match_parent"
        android:layout_height="364dp"
        android:layout_marginStart="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="32dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView2">

        <ImageView
            android:id="@+id/imageView5"
            android:layout_width="72dp"
            android:layout_height="72dp"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:src="@mipmap/ic_silent_dragon_round"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_bias="0.22000003" />

        <Button
            android:id="@+id/btnConnect"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:text="Scan QR Code"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/imageView5" />

        <TextView
            android:id="@+id/lblConnectionOr"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:text="OR"
            android:textAlignment="center"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/btnConnect" />

        <Button
            android:id="@+id/btnReconnect"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:text="Reconnect"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/lblConnectionOr" />
    </android.support.constraint.ConstraintLayout>
    <android.support.design.widget.BottomNavigationView
            android:layout_width="match_parent"
            android:layout_height="0dp" app:menu="@menu/menu_nav"
            android:id="@+id/bottomNav"
            app:itemIconTint="@null"
            app:itemTextColor="@color/white_text_selector"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintBottom_toBottomOf="parent" />
</android.support.constraint.ConstraintLayout>