Asked by anDroider - no answer
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/logo" />
<EditText
android:id="@+id/loginuser"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:ems="10"
android:hint="@string/username_string"
android:inputType="textEmailAddress" >
</EditText>
<EditText
android:id="@+id/loginpass"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="@string/password_string"
android:inputType="textPassword" />
<Button
android:id="@+id/loginbtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="20dp"
android:clickable="true"
android:text="Login" />
</LinearLayout>
EDIT: this part is the answer
OnEditorActionListener .