Settings: Remove "Learn More" clickable text if not overlaid.

  If the "Learn More" textview's target click intent url is
  not overlaid, settings will throw an NPE. Remove the text
  if not overlaid.

Change-Id: Ib80547a90b8c97485db2529b79172f7c461649c0
TICKET: CYNGNOS-2173

1 files changed, 10 insertions, 1 deletions

diff --git a/src/com/android/settings/fingerprint/FingerprintEnrollIntroduction.java b/src/com/android/settings/fingerprint/FingerprintEnrollIntroduction.java
index beb1a8f..5753459 100644
--- a/src/com/android/settings/fingerprint/FingerprintEnrollIntroduction.java
+++ b/src/com/android/settings/fingerprint/FingerprintEnrollIntroduction.java
@@ -20,6 +20,7 @@ import android.app.admin.DevicePolicyManager;
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.UserHandle;
+import android.text.TextUtils;
 import android.view.View;
 
 import com.android.internal.logging.MetricsLogger;
@@ -40,7 +41,15 @@ public class FingerprintEnrollIntroduction extends FingerprintEnrollBase {
         setContentView(R.layout.fingerprint_enroll_introduction);
         setHeaderText(R.string.security_settings_fingerprint_enroll_introduction_title);
         findViewById(R.id.cancel_button).setOnClickListener(this);
-        findViewById(R.id.learn_more_button).setOnClickListener(this);
+
+        final View learnMoreButton = findViewById(R.id.learn_more_button);
+        // If help url is not overlaid, remove the button.
+        if (TextUtils.isEmpty(getString(R.string.help_url_fingerprint))) {
+            learnMoreButton.setVisibility(View.GONE);
+        } else {
+            learnMoreButton.setOnClickListener(this);
+        }
+
         final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
                 .getActivePasswordQuality(UserHandle.myUserId());
         mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;