apps-android-commons/app/src/main/res/layout/activity_login.xml

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="16dp"
        android:gravity="center"
        android:orientation="vertical"
        >

        <TextView
            android:id="@+id/loginSubtitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="48dp"
            android:drawablePadding="8dp"
            android:drawableTop="@drawable/commons_logo_large"
            android:gravity="center_horizontal"
            android:text="@string/app_name"
            android:textAppearance="?android:attr/textAppearanceMedium"
            />

        <android.support.design.widget.TextInputLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            >

            <android.support.design.widget.TextInputEditText
                android:id="@+id/loginUsername"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="@string/username"
                android:imeOptions="flagNoExtractUi"
                android:inputType="textNoSuggestions"
                >

                <requestFocus/>

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

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

        <android.support.design.widget.TextInputLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:passwordToggleEnabled="false"
            >

            <android.support.design.widget.TextInputEditText
                android:id="@+id/loginPassword"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="@string/password"
                android:imeOptions="flagNoExtractUi"
                android:inputType="textPassword"
                />

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

        <Button
            android:id="@+id/loginButton"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:enabled="false"
            android:text="@string/login"
            />

        <Button
            android:id="@+id/signupButton"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:onClick="signUp"
            android:text="@string/signup"
            />

    </LinearLayout>
</ScrollView>