Do not show udfps enrollment page in multi window mode.

In multi window mode, finish FingerprintEnrollEnrolling activity
and show a toast.

Test: atest FingerprintEnrollEnrollingTest
Bug: 184118847
Change-Id: I8cfa61b334c029185e1bbf46fdbf158bb493a1e0

res/values/strings.xml

@@ -11793,4 +11793,7 @@
     <string name="color_selector_dialog_done">Done</string>
     <!-- Button to close the dialog without saving in screen flash color selection dialog. [CHAR LIMIT=20] -->
     <string name="color_selector_dialog_cancel">Cancel</string>
+
+    <!-- Warning message when we try to dock an app not supporting multiple instances split into multiple sides [CHAR LIMIT=NONE] -->
+    <string name="dock_multi_instances_not_supported_text">"This app can only be opened in 1 window"</string>
 </resources>

src/com/android/settings/biometrics/fingerprint/FingerprintEnrollEnrolling.java

@@ -66,6 +66,7 @@ import android.widget.LinearLayout;
 import android.widget.ProgressBar;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.IdRes;
 import androidx.appcompat.app.AlertDialog;
@@ -249,6 +250,14 @@ public class FingerprintEnrollEnrolling extends BiometricsEnrollEnrolling {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        if (isInMultiWindowMode()) {
+            final Toast splitUnsupportedToast = Toast.makeText(this,
+                    R.string.dock_multi_instances_not_supported_text, Toast.LENGTH_SHORT);
+            splitUnsupportedToast.show();
+            finish();
+            return;
+        }
+
         if (savedInstanceState != null) {
             restoreSavedState(savedInstanceState);
         }

tests/robotests/src/com/android/settings/biometrics/fingerprint/FingerprintEnrollEnrollingTest.java

@@ -74,6 +74,7 @@ import org.mockito.MockitoAnnotations;
 import org.robolectric.RobolectricTestRunner;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.android.controller.ActivityController;
+import org.robolectric.shadows.ShadowToast;
 import org.robolectric.util.ReflectionHelpers;
 
 import java.util.ArrayList;
@@ -113,6 +114,16 @@ public class FingerprintEnrollEnrollingTest {
         FakeFeatureFactory.setupForTest();
     }
 
+    @Test
+    public void fingerprintMultiWindowMode() {
+        initializeActivityWithoutCreate(TYPE_UDFPS_OPTICAL);
+        when(mActivity.isInMultiWindowMode()).thenReturn(true);
+        createActivity();
+
+        assertThat(ShadowToast.getTextOfLatestToast()).isEqualTo(
+                mContext.getString(R.string.dock_multi_instances_not_supported_text));
+    }
+
     @Test
     public void fingerprintUdfpsEnrollSuccessProgress_shouldNotVibrate() {
         initializeActivityFor(TYPE_UDFPS_OPTICAL);
@@ -438,7 +449,7 @@ public class FingerprintEnrollEnrollingTest {
         assertThat(appliedThemes.contains("SetupWizardPartnerResource")).isTrue();
     }
 
-    private void initializeActivityFor(int sensorType) {
+    private void initializeActivityWithoutCreate(int sensorType) {
         final List<ComponentInfoInternal> componentInfo = new ArrayList<>();
         final FingerprintSensorPropertiesInternal prop =
                 new FingerprintSensorPropertiesInternal(
@@ -449,8 +460,6 @@ public class FingerprintEnrollEnrollingTest {
                         sensorType,
                         true /* resetLockoutRequiresHardwareAuthToken */);
         final ArrayList<FingerprintSensorPropertiesInternal> props = new ArrayList<>();
-        final Bundle savedInstanceState = new Bundle();
-        savedInstanceState.putInt(KEY_STATE_PREVIOUS_ROTATION, Surface.ROTATION_90);
         props.add(prop);
         when(mFingerprintManager.getSensorPropertiesInternal()).thenReturn(props);
         mContext = spy(RuntimeEnvironment.application);
@@ -483,11 +492,21 @@ public class FingerprintEnrollEnrollingTest {
             }
             doReturn(true).when(mSidecar).isEnrolling();
         }
+    }
+
+    private void createActivity() {
+        final Bundle savedInstanceState = new Bundle();
+        savedInstanceState.putInt(KEY_STATE_PREVIOUS_ROTATION, Surface.ROTATION_90);
 
         ActivityController.of(mActivity).create(savedInstanceState);
         mTheme = mActivity.getTheme();
     }
 
+    private void initializeActivityFor(int sensorType) {
+        initializeActivityWithoutCreate(sensorType);
+        createActivity();
+    }
+
     private EnrollmentCallback verifyAndCaptureEnrollmentCallback() {
         ArgumentCaptor<EnrollmentCallback> callbackCaptor =
                 ArgumentCaptor.forClass(EnrollmentCallback.class);