Added string to encourage user to enroll more fingerprints

Test: Manual - Finish enrolling a fingerprint and check the message
displayed
Bug: 265023475

Change-Id: I77a6bd08a5bfb58971539bf4d366d0425ae0c9a0
Merged-in: I77a6bd08a5bfb58971539bf4d366d0425ae0c9a0
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 1dc49a4..c94c2fd 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1286,6 +1286,12 @@
     <string name="security_settings_fingerprint_enroll_finish_v2_message" product="device">Now you can use your fingerprint to unlock your device or verify it\u2019s you, like when you sign in to apps or approve a purchase</string>
     <!-- Message shown in fingerprint enrollment dialog once enrollment is completed (default) [CHAR LIMIT=NONE] -->
     <string name="security_settings_fingerprint_enroll_finish_v2_message" product="default">Now you can use your fingerprint to unlock your phone or verify it\u2019s you, like when you sign in to apps or approve a purchase</string>
+    <!-- Message shown in fingerprint enrollment dialog once enrollment is completed (tablet) [CHAR LIMIT=NONE] -->
+    <string name="security_settings_fingerprint_enroll_finish_v2_add_fingerprint_message" product="tablet">Now you can use your fingerprint to unlock your tablet or verify it\u2019s you, like when you sign in to apps or approve a purchase. \n\nAdd another fingerprint so it\u2019s easier to unlock when you hold your tablet in different ways.</string>
+    <!-- Message shown in fingerprint enrollment dialog once enrollment is completed (device) [CHAR LIMIT=NONE] -->
+    <string name="security_settings_fingerprint_enroll_finish_v2_add_fingerprint_message" product="device">Now you can use your fingerprint to unlock your device or verify it\u2019s you, like when you sign in to apps or approve a purchase.\n\nAdd another fingerprint so it\u2019s easier to unlock when you hold your device in different ways.</string>
+    <!-- Message shown in fingerprint enrollment dialog once enrollment is completed (default) [CHAR LIMIT=NONE] -->
+    <string name="security_settings_fingerprint_enroll_finish_v2_add_fingerprint_message" product="default">Now you can use your fingerprint to unlock your phone or verify it\u2019s you, like when you sign in to apps or approve a purchase.\n\nAdd another fingerprint so it\u2019s easier to unlock when you hold your phone in different ways.</string>
     <!-- Title for require screen on to auth toggle shown in fingerprint enrollment dialog once enrollment is completed. [CHAR LIMIT=NONE] -->
     <string name="security_settings_require_screen_on_to_auth_title">Touch to unlock anytime</string>
     <!-- Description for require screen on to auth toggle shown in fingerprint enrollment dialog once enrollment is completed. [CHAR LIMIT=NONE] -->
diff --git a/src/com/android/settings/biometrics/fingerprint/FingerprintEnrollFinish.java b/src/com/android/settings/biometrics/fingerprint/FingerprintEnrollFinish.java
index 2125d52..bbaa3c7 100644
--- a/src/com/android/settings/biometrics/fingerprint/FingerprintEnrollFinish.java
+++ b/src/com/android/settings/biometrics/fingerprint/FingerprintEnrollFinish.java
@@ -70,6 +70,9 @@
         }
         setHeaderText(R.string.security_settings_fingerprint_enroll_finish_title);
         setDescriptionText(R.string.security_settings_fingerprint_enroll_finish_v2_message);
+        if (mCanAssumeSfps) {
+            setDescriptionForSfps();
+        }
 
         mFooterBarMixin = getLayout().getMixin(FooterBarMixin.class);
         mFooterBarMixin.setSecondaryButton(
@@ -90,6 +93,20 @@
         );
     }
 
+    private void setDescriptionForSfps() {
+        final FingerprintManager fpm = Utils.getFingerprintManagerOrNull(this);
+        if (fpm != null) {
+            final List<FingerprintSensorPropertiesInternal> props =
+                    fpm.getSensorPropertiesInternal();
+            final int maxEnrollments = props.get(0).maxEnrollmentsPerUser;
+            final int enrolled = fpm.getEnrolledFingerprints(mUserId).size();
+            if (enrolled < maxEnrollments) {
+                setDescriptionText(R.string
+                        .security_settings_fingerprint_enroll_finish_v2_add_fingerprint_message);
+            }
+        }
+    }
+
     @Override
     public void onBackPressed() {
         updateFingerprintSuggestionEnableState();