Android:TextInputLayout总是在顶部留有一些空间

我有这样的布局:

<LinearLayout
    android:id="@+id/dialogCentralContent"
    android:gravity="center_horizontal"
    android:layout_width="220dp"
    android:layout_height="wrap_content"
    android:layout_below="@+id/phoneNumberInfo"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:layout_marginBottom="20dp"
    android:layout_centerHorizontal="true"
    android:orientation="horizontal"
    android:background="@drawable/edittext_white_rounded">

    <EditText
        android:layout_width="0dp"
        android:layout_height="60dp"
        android:layout_weight="1"
        android:gravity="center"
        android:maxLines="1"
        android:inputType="none"
        android:focusable="false"
        android:text="@={dataContext.phonePrefix}"
        style="@style/Widget.App.PurchaseAmountEditText" />

    <android.support.design.widget.TextInputLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="3"
        tools:errorEnabled="true"
        app:errorText="@{dataContext.validator.phoneValidation}">

        <android.support.design.widget.TextInputEditText
            android:layout_height="60dp"
            android:layout_width="match_parent"
            android:gravity="center"
            android:maxLines="1"
            android:inputType="phone"
            android:text="@={dataContext.phoneNumber}"
            style="@style/Widget.App.PurchaseAmountEditText" />

    </android.support.design.widget.TextInputLayout>

</LinearLayout>

它看起来像这样:

如您所见，第二个EditText呈现为低于第一个.当我在Android Studio的可视编辑器中查看它时，我可以看到TextInputLayout的顶部有一些可用空间，但是设置paddingTop="0dp"并没有任何改变.那么如何使这两个EditText呈现相同的方式?

As you can see the second EditText is rendered lower than the first one. When I look at it in the visual editor of Android Studio I can see that the TextInputLayout has some free space at its top, however setting paddingTop="0dp" didn't change anything. So how to make those two EditTexts render the same way?