Create layout

This section shows you how to create the layout for the app.

Create the buttons and Textview

This app contains 5 buttons.

createAndroidProfileBtn — prompts the user to create an Android work profile.
activateLicenseBtn — activates the Knox KPE license key.
deactivateLicenseBtn — deactivates the Knox KPE license key.
toggleCameraBtn — Invokes a policy that enables or disables the camera in the work profile.
enforceMfaBtn — Invokes a policy that enforces multi-factor authentication in the work profile.

Open activity_main.xml and insert the following XML markup to create your screen layout:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
	
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/mainpage"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.samsung.knox.example.knoxworkspace.MainActivity">

    <TextView
        android:id="@+id/logview_id"
        android:gravity="bottom"
        android:layout_width="320dp"
        android:layout_height="230dp"
        android:textColor="#3F51B5"
        android:background="@drawable/background"
        android:scrollbars="vertical"
        android:paddingStart="10dp"
        android:paddingEnd="10dp"
        android:layout_marginTop="22dp"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />

    <Button
        android:id="@+id/createAndroidProfileBtn"
        android:layout_width="210dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="25dp"
        android:layout_below="@+id/logview_id"
        android:layout_centerHorizontal="true"
        android:text="@string/android_po" />
    <Button
        android:id="@+id/activateLicenseBtn"
        android:layout_width="210dp"
        android:layout_height="wrap_content"
        android:layout_alignStart="@+id/createAndroidProfileBtn"
        android:layout_below="@+id/createAndroidProfileBtn"
        android:text="@string/activate_license" />

    <Button
        android:id="@+id/deactivateLicenseBtn"
        android:layout_width="210dp"
        android:layout_height="wrap_content"
        android:layout_alignStart="@+id/activateLicenseBtn"
        android:layout_below="@+id/activateLicenseBtn"
        android:text="@string/deactivate_license" />

    <TextView
        android:id="@+id/StandardText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/deactivateLicenseBtn"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="20px"
        android:text="Call Standard permission API"
        />

    <Button
        android:id="@+id/toggleCameraBtn"
        android:layout_width="200dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/StandardText"
        android:layout_centerHorizontal="true"
        android:text="@string/toggle_camera" />

    <TextView
        android:id="@+id/PremiumText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/toggleCameraBtn"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="20px"
        android:text="Call Premium permission API" />

    <Button
        android:id="@+id/enforceMfaBtn"
        android:layout_width="200dp"
        android:layout_height="wrap_content"
        android:layout_below="@+id/PremiumText"
        android:layout_centerHorizontal="true"
        android:text="@string/enforce_mfa" />

</RelativeLayout>

Depending on your device’s Knox version, you should now see 5 or 6 buttons in the middle of the screen:

CREATE MANAGED PROFILE
ACTIVATE LICENSE
DEACTIVATE LICENSE
TOGGLE PROFILE CAMERA
ENFORCE MULTI-FACTOR AUTHENTICATION You will later assign methods to these buttons to control their respective actions. The TextView at the top of the screen also displays log messages.

Note

To resolve the @string errors, copy the strings.xml file from the sample app into your project.

For information on creating Android layouts, see Create your first Android app.

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