activity_implicit.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="50dp"
    android:background="@android:color/holo_blue_light"
    tools:context=".ImplicitActivity"
    >

    <EditText
        android:id="@+id/siteAddressEdit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="@string/empty"
        android:background="@android:color/background_light"
        android:hint="@string/enterSiteAddress"/>

    <Button
        android:id="@+id/goToSiteButton"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:onClick="onClickGoToSite"
        android:text="@string/goToSite" />
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="10dip"
        android:id="@+id/spaceView1" />

    <EditText
        android:id="@+id/phoneNumberEdit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="@string/empty"
        android:background="@android:color/background_light"
        android:hint="@string/enterPhoneNumber"/>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal">

        <Button
            android:id="@+id/openPhoneButton"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:onClick="onClickOpenPhone"
            android:text="@string/openPhone"
            android:layout_weight="1" />

        <Button
            android:id="@+id/callPhoneButton"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:onClick="onClickCallPhone"
            android:text="@string/callPhone"
            android:layout_weight="1" />
    </LinearLayout>

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="10dip"
        android:id="@+id/spaceView2" />

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">

        <EditText
            android:id="@+id/mapLongitudeEdit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:text="@string/empty"
            android:hint="@string/enterLongitude"
            android:background="@android:color/background_light"
            android:layout_weight="1" />

        <EditText
            android:id="@+id/mapLatitudeEdit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:text="@string/empty"
            android:hint="@string/enterLatitude"
            android:background="@android:color/background_light"
            android:layout_weight="1" />
    </LinearLayout>

    <Button
        android:id="@+id/openMapButton"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:onClick="onClickOpenMap"
        android:text="@string/openMap" />
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="10dip"
        android:id="@+id/spaceView3" />
    <Button
        android:id="@+id/openContacts"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:onClick="onClickOpenContacts"
        android:text="@string/openContacts" />

</LinearLayout>