Android – how to center and left align prompt text in EditText?

This is my layout, which brings the prompts together well, but how to align the prompts to the left, such as the margin of 10dip? (that is, I want it to remain vertically centered but aligned to the left)

             <EditText
                android:id="@+id/mobilePhoneNumber"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:visibility="gone"
                android:inputType="number"
                android:ellipsize="start"
                android:gravity="center"
                android:layout_marginTop="10dip"
                android:hint="@string/lbl_hint_enter_mobile_phone_number"
                android:textSize="14dip"
                android:layout_marginLeft="10dip"
                android:layout_marginRight="10dip"
                android:maxLines="1" />

resolvent:

 <EditText
            android:id="@+id/mobilePhoneNumber"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:inputType="number"
            android:ellipsize="start"
            android:gravity="left|center_vertical"
            android:paddingLeft="5dp"
            android:layout_marginTop="10dip"
            android:hint="hello world"
            android:textSize="14dip"
            android:layout_marginLeft="10dip"
            android:layout_marginRight="10dip"
            android:maxLines="1" />