imeOption="actionNext" not working in TextInputLayout .

Add attribute android:inputType="text" to your EditText.

Try this:

<android.support.design.widget.TextInputLayout
    android:id="@+id/streetWrapper"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Street/Locality *"
        android:imeOptions="actionNext"
        android:maxLines="1"
        android:inputType="text"/>

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

<android.support.design.widget.TextInputLayout
    android:id="@+id/flatWrapper"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="@dimen/_10sdp">

    <EditText

        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Building Name / Flat Number*"
        android:imeOptions="actionNext"
        android:maxLines="1"
        android:inputType="text"/>

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

You should add android:inputType="text" on section Tag

If you not adding inputType imeOption is not work

Try this :

<android.support.design.widget.TextInputLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="@dimen/dimens_16dp">

                    <android.support.design.widget.TextInputEditText
                        android:id="@+id/et_impian"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:hint="@string/text_fill_your_dream_here"
                        android:imeOptions="actionNext"
                        android:inputType="text"
                        android:backgroundTint="@color/color_green_manulife"/>

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

You should add android:imeOptions="actionNext" in EditText section.

<android.support.design.widget.TextInputLayout
    android:id="@+id/streetWrapper"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/TextInputStyle">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:imeOptions="actionNext"
        android:maxLines="1"
        android:inputType="text"/>
</android.support.design.widget.TextInputLayout>