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fragment_verifiying.xml

<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"
    tools:context="com.google.samples.smartlock.sms_verify.ui.VerifyingFragment"
    android:id="@+id/verifiying"

android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_alignParentStart="true">

<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="@dimen/boarder_padding">
        <TextView
            android:id="@+id/verifying_menu_verification_label"
            android:labelFor="@+id/verifying_menu_verification_field"
            android:layout_height="wrap_content"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:gravity="center"
            android:textAppearance="@android:style/TextAppearance.Widget.TextView"
            android:text="@string/verifying_menu_verification"/>
        <EditText
            android:id="@+id/verifying_menu_verification_field"
            android:layout_height="wrap_content"
            android:layout_width="0dp"
            android:layout_weight="2"
            android:inputType="number"
            style="@style/Widget.AppCompat.EditText" />
        <Button
            android:id="@+id/verifying_menu_verification_submit"
            android:layout_height="wrap_content"
            android:layout_width="0dp"
            android:layout_weight="1"
            style="@style/Widget.AppCompat.Button.Colored"
            android:text="@string/verifying_menu_verification_submit"/>
    </LinearLayout>

<LinearLayout
        android:id="@+id/verifying_center"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_centerInParent="true">
        <ProgressBar
            android:id="@+id/verifying_progress"
            style="@android:style/Widget.DeviceDefault.Light.ProgressBar.Large"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center" />
        <TextView
            android:id="@+id/verifying_center_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/verifying_text"
            android:layout_gravity="center"
            />
    </LinearLayout>

<Button
        android:id="@+id/verifying_menu_verification_cancel"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        style="@style/Widget.AppCompat.Button.Borderless"
        android:text="@string/verifying_menu_verification_cancel"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:padding="@dimen/boarder_padding"/>

</RelativeLayout>