Show confirmation dialog when user tries to skip fingerprint

- After the user finished adding lock screen, if the user tries to skip
fingerprint setup, show a confirmation dialog

bug: 64092225
Test: Manually tested; robolectric tests also added
Change-Id: Iba5088a9db93153988942cf78f11077f427e50cb

src/com/android/settings/fingerprint/FingerprintEnrollFindSensor.java

@@ -139,14 +139,18 @@ public class FingerprintEnrollFindSensor extends FingerprintEnrollBase {
     public void onClick(View v) {
         switch (v.getId()) {
             case R.id.skip_button:
-                setResult(RESULT_SKIP);
-                finish();
+                onSkipButtonClick();
                 break;
             default:
                 super.onClick(v);
         }
     }
 
+    protected void onSkipButtonClick() {
+        setResult(RESULT_SKIP);
+        finish();
+    }
+
     private void proceedToEnrolling(boolean cancelEnrollment) {
         if (mSidecar != null) {
             if (cancelEnrollment) {

src/com/android/settings/fingerprint/SetupFingerprintEnrollFindSensor.java

@@ -16,12 +16,21 @@
 
 package com.android.settings.fingerprint;
 
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.FragmentManager;
+import android.content.DialogInterface;
 import android.content.Intent;
+import android.os.Bundle;
 import android.os.UserHandle;
+import android.support.annotation.NonNull;
 
+import com.android.internal.logging.nano.MetricsProto;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
 import com.android.settings.SetupWizardUtils;
+import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
 import com.android.settings.password.ChooseLockSettingsHelper;
 
 public class SetupFingerprintEnrollFindSensor extends FingerprintEnrollFindSensor {
@@ -42,8 +51,54 @@ public class SetupFingerprintEnrollFindSensor extends FingerprintEnrollFindSenso
         return intent;
     }
 
+    @Override
+    protected void onSkipButtonClick() {
+        new SkipFingerprintDialog().show(getFragmentManager());
+    }
+
     @Override
     public int getMetricsCategory() {
         return MetricsEvent.FINGERPRINT_FIND_SENSOR_SETUP;
     }
+
+    public static class SkipFingerprintDialog extends InstrumentedDialogFragment
+            implements DialogInterface.OnClickListener {
+        private static final String TAG_SKIP_DIALOG = "skip_dialog";
+
+        @Override
+        public int getMetricsCategory() {
+            return MetricsProto.MetricsEvent.DIALOG_FINGERPRINT_SKIP_SETUP;
+        }
+
+        @Override
+        public Dialog onCreateDialog(Bundle savedInstanceState) {
+            return onCreateDialogBuilder().create();
+        }
+
+        @NonNull
+        public AlertDialog.Builder onCreateDialogBuilder() {
+            return new AlertDialog.Builder(getContext())
+                    .setTitle(R.string.fingerprint_enroll_skip_after_adding_lock_title)
+                    .setPositiveButton(R.string.skip_anyway_button_label, this)
+                    .setNegativeButton(R.string.go_back_button_label, this)
+                    .setMessage(R.string.fingerprint_enroll_skip_after_adding_lock_text);
+        }
+
+        @Override
+        public void onClick(DialogInterface dialog, int button) {
+            switch (button) {
+                case DialogInterface.BUTTON_POSITIVE:
+                    Activity activity = getActivity();
+                    if (activity != null) {
+                        activity.setResult(RESULT_SKIP);
+                        activity.finish();
+                    }
+                    break;
+            }
+        }
+
+        public void show(FragmentManager manager) {
+            show(manager, TAG_SKIP_DIALOG);
+        }
+    }
 }

src/com/android/settings/password/SetupSkipDialog.java

@@ -61,6 +61,7 @@ public class SetupSkipDialog extends InstrumentedDialogFragment
         return new AlertDialog.Builder(getContext())
                 .setPositiveButton(R.string.skip_anyway_button_label, this)
                 .setNegativeButton(R.string.go_back_button_label, this)
+                .setTitle(R.string.lock_screen_intro_skip_title)
                 .setMessage(args.getBoolean(ARG_FRP_SUPPORTED) ?
                         R.string.lock_screen_intro_skip_dialog_text_frp :
                         R.string.lock_screen_intro_skip_dialog_text);