diff --git a/packages/SystemUI/res/drawable/udfps_progress_bar.xml b/packages/SystemUI/res/drawable/udfps_progress_bar.xml
deleted file mode 100644
index e5389f3b99ef5..0000000000000
--- a/packages/SystemUI/res/drawable/udfps_progress_bar.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (C) 2021 The Android Open Source Project
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~      http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:id="@android:id/background">
-        <shape
-            android:innerRadiusRatio="2.2"
-            android:shape="ring"
-            android:thickness="@dimen/udfps_enroll_progress_thickness"
-            android:useLevel="false"
-            android:tint="?android:colorControlNormal">
-            <solid android:color="@*android:color/white_disabled_material" />
-        </shape>
-    </item>
-    <item android:id="@android:id/progress">
-        <rotate
-            android:fromDegrees="270"
-            android:pivotX="50%"
-            android:pivotY="50%"
-            android:toDegrees="270">
-            <shape
-                android:innerRadiusRatio="2.2"
-                android:shape="ring"
-                android:thickness="@dimen/udfps_enroll_progress_thickness"
-                android:tint="?android:attr/colorControlActivated">
-                <solid android:color="@android:color/white" />
-            </shape>
-        </rotate>
-    </item>
-</layer-list>
\ No newline at end of file
diff --git a/packages/SystemUI/res/layout/udfps_enroll_view.xml b/packages/SystemUI/res/layout/udfps_enroll_view.xml
index 40353052ca857..a55653e5485fb 100644
--- a/packages/SystemUI/res/layout/udfps_enroll_view.xml
+++ b/packages/SystemUI/res/layout/udfps_enroll_view.xml
@@ -20,17 +20,6 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
-    <!-- Enrollment progress bar -->
-    <com.android.systemui.biometrics.UdfpsProgressBar
-        android:id="@+id/progress_bar"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:max="100"
-        android:padding="@dimen/udfps_enroll_progress_thickness"
-        android:progress="0"
-        android:layout_gravity="center"
-        android:visibility="gone"/>
-
     <!-- Fingerprint -->
     <ImageView
         android:id="@+id/udfps_enroll_animation_fp_view"
diff --git a/packages/SystemUI/res/values/colors.xml b/packages/SystemUI/res/values/colors.xml
index 862d59e970a15..1f6a94d254b78 100644
--- a/packages/SystemUI/res/values/colors.xml
+++ b/packages/SystemUI/res/values/colors.xml
@@ -188,6 +188,7 @@
     <color name="udfps_enroll_icon">#000000</color>                         <!-- 100% black -->
     <color name="udfps_moving_target_fill">#cc4285f4</color>                <!-- 80% blue -->
     <color name="udfps_moving_target_stroke">#ff669DF6</color>              <!-- 100% blue -->
+    <color name="udfps_enroll_progress">#ff669DF6</color>                   <!-- 100% blue -->
 
     <!-- Logout button -->
     <color name="logout_button_bg_color">#ccffffff</color>
diff --git a/packages/SystemUI/res/values/config.xml b/packages/SystemUI/res/values/config.xml
index 119507b67e9ad..34a1452295802 100644
--- a/packages/SystemUI/res/values/config.xml
+++ b/packages/SystemUI/res/values/config.xml
@@ -630,6 +630,11 @@
         58.0001 29.2229,56.9551 26.8945,55.195
     </string>
 
+    <!-- The radius of the enrollment progress bar, in pixels -->
+    <integer name="config_udfpsEnrollProgressBar" translatable="false">
+        360
+    </integer>
+
     <!-- package name of a built-in camera app to use to restrict implicit intent resolution
          when the double-press power gesture is used. Ignored if empty. -->
     <string translatable="false" name="config_cameraGesturePackage"></string>
diff --git a/packages/SystemUI/res/values/dimens.xml b/packages/SystemUI/res/values/dimens.xml
index c1efc1fc247b7..f7f7476c591bb 100644
--- a/packages/SystemUI/res/values/dimens.xml
+++ b/packages/SystemUI/res/values/dimens.xml
@@ -1188,9 +1188,6 @@
     <!-- Y translation for credential contents when animating in -->
     <dimen name="biometric_dialog_credential_translation_offset">60dp</dimen>
 
-    <!-- UDFPS enrollment progress bar thickness -->
-    <dimen name="udfps_enroll_progress_thickness">12dp</dimen>
-
     <!-- Wireless Charging Animation values -->
     <dimen name="wireless_charging_dots_radius_start">0dp</dimen>
     <dimen name="wireless_charging_dots_radius_end">4dp</dimen>
diff --git a/packages/SystemUI/res/values/styles.xml b/packages/SystemUI/res/values/styles.xml
index 46511682464be..97273a88e9c02 100644
--- a/packages/SystemUI/res/values/styles.xml
+++ b/packages/SystemUI/res/values/styles.xml
@@ -871,14 +871,6 @@
         <item name="android:textColor">?android:attr/textColorPrimary</item>
     </style>
 
-    <style name="UdfpsProgressBarStyle"
-        parent="android:style/Widget.Material.ProgressBar.Horizontal">
-        <item name="android:indeterminate">false</item>
-        <item name="android:max">10000</item>
-        <item name="android:mirrorForRtl">false</item>
-        <item name="android:progressDrawable">@drawable/udfps_progress_bar</item>
-    </style>
-
     <!-- Wallet styles -->
     <style name="Wallet" />
 
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollDrawable.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollDrawable.java
index 83ae865d7427d..6b6e0f19d7fb3 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollDrawable.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollDrawable.java
@@ -26,8 +26,6 @@ import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.RectF;
 import android.graphics.drawable.Drawable;
-import android.os.Handler;
-import android.os.Looper;
 import android.view.animation.AccelerateDecelerateInterpolator;
 
 import androidx.annotation.NonNull;
@@ -41,17 +39,15 @@ import com.android.systemui.R;
 public class UdfpsEnrollDrawable extends UdfpsDrawable {
     private static final String TAG = "UdfpsAnimationEnroll";
 
-    static final float PROGRESS_BAR_RADIUS = 360.f;
-
     private static final long ANIM_DURATION = 800;
     // 1 + SCALE_MAX is the maximum that the moving target will animate to
     private static final float SCALE_MAX = 0.25f;
 
+    @NonNull private final UdfpsEnrollProgressBarDrawable mProgressDrawable;
     @NonNull private final Drawable mMovingTargetFpIcon;
     @NonNull private final Paint mSensorOutlinePaint;
     @NonNull private final Paint mBlueFill;
     @NonNull private final Paint mBlueStroke;
-    @NonNull private final Handler mHandler;
 
     @Nullable private RectF mSensorRect;
     @Nullable private UdfpsEnrollHelper mEnrollHelper;
@@ -64,11 +60,10 @@ public class UdfpsEnrollDrawable extends UdfpsDrawable {
     // Moving target size
     float mCurrentScale = 1.f;
 
-
     UdfpsEnrollDrawable(@NonNull Context context) {
         super(context);
 
-        mHandler = new Handler(Looper.getMainLooper());
+        mProgressDrawable = new UdfpsEnrollProgressBarDrawable(context, this);
 
         mSensorOutlinePaint = new Paint(0 /* flags */);
         mSensorOutlinePaint.setAntiAlias(true);
@@ -112,47 +107,49 @@ public class UdfpsEnrollDrawable extends UdfpsDrawable {
     }
 
     void onEnrollmentProgress(int remaining, int totalSteps) {
+        mProgressDrawable.setEnrollmentProgress(remaining, totalSteps);
+
         if (mEnrollHelper.isCenterEnrollmentComplete()) {
-            mHandler.post(() -> {
-                if (mAnimatorSet != null && mAnimatorSet.isRunning()) {
-                    mAnimatorSet.end();
-                }
+            if (mAnimatorSet != null && mAnimatorSet.isRunning()) {
+                mAnimatorSet.end();
+            }
 
-                final PointF point = mEnrollHelper.getNextGuidedEnrollmentPoint();
+            final PointF point = mEnrollHelper.getNextGuidedEnrollmentPoint();
 
-                final ValueAnimator x = ValueAnimator.ofFloat(mCurrentX, point.x);
-                x.addUpdateListener(animation -> {
-                    mCurrentX = (float) animation.getAnimatedValue();
-                    invalidateSelf();
-                });
-
-                final ValueAnimator y = ValueAnimator.ofFloat(mCurrentY, point.y);
-                y.addUpdateListener(animation -> {
-                    mCurrentY = (float) animation.getAnimatedValue();
-                    invalidateSelf();
-                });
-
-                final ValueAnimator scale = ValueAnimator.ofFloat(0, (float) Math.PI);
-                scale.setDuration(ANIM_DURATION);
-                scale.addUpdateListener(animation -> {
-                    // Grow then shrink
-                    mCurrentScale = 1 +
-                            SCALE_MAX * (float) Math.sin((float) animation.getAnimatedValue());
-                    invalidateSelf();
-                });
-
-                mAnimatorSet = new AnimatorSet();
-
-                mAnimatorSet.setInterpolator(new AccelerateDecelerateInterpolator());
-                mAnimatorSet.setDuration(ANIM_DURATION);
-                mAnimatorSet.playTogether(x, y, scale);
-                mAnimatorSet.start();
+            final ValueAnimator x = ValueAnimator.ofFloat(mCurrentX, point.x);
+            x.addUpdateListener(animation -> {
+                mCurrentX = (float) animation.getAnimatedValue();
+                invalidateSelf();
             });
+
+            final ValueAnimator y = ValueAnimator.ofFloat(mCurrentY, point.y);
+            y.addUpdateListener(animation -> {
+                mCurrentY = (float) animation.getAnimatedValue();
+                invalidateSelf();
+            });
+
+            final ValueAnimator scale = ValueAnimator.ofFloat(0, (float) Math.PI);
+            scale.setDuration(ANIM_DURATION);
+            scale.addUpdateListener(animation -> {
+                // Grow then shrink
+                mCurrentScale = 1 +
+                        SCALE_MAX * (float) Math.sin((float) animation.getAnimatedValue());
+                invalidateSelf();
+            });
+
+            mAnimatorSet = new AnimatorSet();
+
+            mAnimatorSet.setInterpolator(new AccelerateDecelerateInterpolator());
+            mAnimatorSet.setDuration(ANIM_DURATION);
+            mAnimatorSet.playTogether(x, y, scale);
+            mAnimatorSet.start();
         }
     }
 
     @Override
     public void draw(@NonNull Canvas canvas) {
+        mProgressDrawable.draw(canvas);
+
         if (isIlluminationShowing()) {
             return;
         }
@@ -181,6 +178,11 @@ public class UdfpsEnrollDrawable extends UdfpsDrawable {
         }
     }
 
+    @Override
+    public void onBoundsChange(@NonNull Rect rect) {
+        mProgressDrawable.setBounds(rect);
+    }
+
     @Override
     public void setAlpha(int alpha) {
         super.setAlpha(alpha);
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollProgressBarDrawable.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollProgressBarDrawable.java
new file mode 100644
index 0000000000000..5c9e52f864712
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollProgressBarDrawable.java
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.biometrics;
+
+import android.animation.ValueAnimator;
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.drawable.Drawable;
+import android.util.TypedValue;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.android.systemui.R;
+
+/**
+ * UDFPS enrollment progress bar.
+ */
+public class UdfpsEnrollProgressBarDrawable extends Drawable {
+
+    private static final String TAG = "UdfpsEnrollProgressBarDrawable";
+
+    private static final float PROGRESS_BAR_THICKNESS_DP = 12;
+
+    @NonNull private final Context mContext;
+    @NonNull private final UdfpsEnrollDrawable mParent;
+    @NonNull private final Paint mBackgroundCirclePaint;
+    @NonNull private final Paint mProgressPaint;
+
+    @Nullable private ValueAnimator mProgressAnimator;
+    private float mProgress;
+
+    public UdfpsEnrollProgressBarDrawable(@NonNull Context context,
+            @NonNull UdfpsEnrollDrawable parent) {
+        mContext = context;
+        mParent = parent;
+
+        mBackgroundCirclePaint = new Paint();
+        mBackgroundCirclePaint.setStrokeWidth(Utils.dpToPixels(context, PROGRESS_BAR_THICKNESS_DP));
+        mBackgroundCirclePaint.setColor(context.getColor(R.color.white_disabled));
+        mBackgroundCirclePaint.setAntiAlias(true);
+        mBackgroundCirclePaint.setStyle(Paint.Style.STROKE);
+
+        // Background circle color + alpha
+        TypedArray tc = context.obtainStyledAttributes(
+                new int[] {android.R.attr.colorControlNormal});
+        int tintColor = tc.getColor(0, mBackgroundCirclePaint.getColor());
+        mBackgroundCirclePaint.setColor(tintColor);
+        tc.recycle();
+        TypedValue alpha = new TypedValue();
+        context.getTheme().resolveAttribute(android.R.attr.disabledAlpha, alpha, true);
+        mBackgroundCirclePaint.setAlpha((int) (alpha.getFloat() * 255));
+
+        // Progress should not be color extracted
+        mProgressPaint = new Paint();
+        mProgressPaint.setStrokeWidth(Utils.dpToPixels(context, PROGRESS_BAR_THICKNESS_DP));
+        mProgressPaint.setColor(context.getColor(R.color.udfps_enroll_progress));
+        mProgressPaint.setAntiAlias(true);
+        mProgressPaint.setStyle(Paint.Style.STROKE);
+        mProgressPaint.setStrokeCap(Paint.Cap.ROUND);
+    }
+
+    void setEnrollmentProgress(int remaining, int totalSteps) {
+        // Add one so that the first steps actually changes progress, but also so that the last
+        // step ends at 1.0
+        final float progress = (totalSteps - remaining + 1) / (float) (totalSteps + 1);
+
+        if (mProgressAnimator != null && mProgressAnimator.isRunning()) {
+            mProgressAnimator.cancel();
+        }
+
+        mProgressAnimator = ValueAnimator.ofFloat(mProgress, progress);
+        mProgressAnimator.setDuration(150);
+        mProgressAnimator.addUpdateListener(animation -> {
+            mProgress = (float) animation.getAnimatedValue();
+            // Use the parent to invalidate, since it's the one that's attached as the view's
+            // drawable and has its callback set automatically. Invalidating via
+            // `this.invalidateSelf` actually does not invoke draw(), since this drawable's callback
+            // is not really set.
+            mParent.invalidateSelf();
+        });
+        mProgressAnimator.start();
+    }
+
+    @Override
+    public void draw(@NonNull Canvas canvas) {
+        canvas.save();
+
+        // Progress starts from the top, instead of the right
+        canvas.rotate(-90, getBounds().centerX(), getBounds().centerY());
+
+        // Progress bar "background track"
+        final float halfPaddingPx = Utils.dpToPixels(mContext, PROGRESS_BAR_THICKNESS_DP) / 2;
+        canvas.drawArc(halfPaddingPx,
+                halfPaddingPx,
+                getBounds().right - halfPaddingPx,
+                getBounds().bottom - halfPaddingPx,
+                0,
+                360,
+                false,
+                mBackgroundCirclePaint
+        );
+
+        final float progress = 360.f * mProgress;
+        // Progress
+        canvas.drawArc(halfPaddingPx,
+                halfPaddingPx,
+                getBounds().right - halfPaddingPx,
+                getBounds().bottom - halfPaddingPx,
+                0,
+                progress,
+                false,
+                mProgressPaint
+        );
+
+        canvas.restore();
+    }
+
+    @Override
+    public void setAlpha(int alpha) {
+
+    }
+
+    @Override
+    public void setColorFilter(@Nullable ColorFilter colorFilter) {
+
+    }
+
+    @Override
+    public int getOpacity() {
+        return 0;
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollView.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollView.java
index 3bf1864aca4c9..3b30220458490 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollView.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollView.java
@@ -17,6 +17,8 @@
 package com.android.systemui.biometrics;
 
 import android.content.Context;
+import android.os.Handler;
+import android.os.Looper;
 import android.util.AttributeSet;
 import android.widget.ImageView;
 
@@ -30,26 +32,25 @@ import com.android.systemui.R;
  */
 public class UdfpsEnrollView extends UdfpsAnimationView {
     @NonNull private final UdfpsEnrollDrawable mFingerprintDrawable;
+    @NonNull private final Handler mHandler;
+
     @NonNull private ImageView mFingerprintView;
-    @NonNull private UdfpsProgressBar mProgressBar;
 
     public UdfpsEnrollView(Context context, @Nullable AttributeSet attrs) {
         super(context, attrs);
         mFingerprintDrawable = new UdfpsEnrollDrawable(mContext);
+        mHandler = new Handler(Looper.getMainLooper());
     }
 
     @Override
     protected void updateAlpha() {
         super.updateAlpha();
-        mProgressBar.setAlpha(calculateAlpha());
-        mProgressBar.getProgressDrawable().setAlpha(calculateAlpha());
     }
 
     @Override
     protected void onFinishInflate() {
         mFingerprintView = findViewById(R.id.udfps_enroll_animation_fp_view);
         mFingerprintView.setImageDrawable(mFingerprintDrawable);
-        mProgressBar = findViewById(R.id.progress_bar);
     }
 
     @Override
@@ -62,6 +63,8 @@ public class UdfpsEnrollView extends UdfpsAnimationView {
     }
 
     void onEnrollmentProgress(int remaining, int totalSteps) {
-        mFingerprintDrawable.onEnrollmentProgress(remaining, totalSteps);
+        mHandler.post(() -> {
+            mFingerprintDrawable.onEnrollmentProgress(remaining, totalSteps);
+        });
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollViewController.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollViewController.java
index c1f3fe0ffbfdb..953448d93d6a4 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollViewController.java
@@ -18,7 +18,6 @@ package com.android.systemui.biometrics;
 
 import android.annotation.NonNull;
 import android.graphics.PointF;
-import android.view.View;
 
 import com.android.systemui.R;
 import com.android.systemui.dump.DumpManager;
@@ -29,8 +28,11 @@ import com.android.systemui.statusbar.phone.StatusBar;
  * Class that coordinates non-HBM animations during enrollment.
  */
 public class UdfpsEnrollViewController extends UdfpsAnimationViewController<UdfpsEnrollView> {
-    @NonNull private final UdfpsProgressBar mProgressBar;
+
+    private final int mEnrollProgressBarRadius;
     @NonNull private final UdfpsEnrollHelper mEnrollHelper;
+    @NonNull private final UdfpsEnrollHelper.Listener mEnrollHelperListener =
+            mView::onEnrollmentProgress;
 
     protected UdfpsEnrollViewController(
             @NonNull UdfpsEnrollView view,
@@ -39,8 +41,9 @@ public class UdfpsEnrollViewController extends UdfpsAnimationViewController<Udfp
             @NonNull StatusBar statusBar,
             @NonNull DumpManager dumpManager) {
         super(view, statusBarStateController, statusBar, dumpManager);
+        mEnrollProgressBarRadius = getContext().getResources()
+                .getInteger(R.integer.config_udfpsEnrollProgressBar);
         mEnrollHelper = enrollHelper;
-        mProgressBar = mView.findViewById(R.id.progress_bar);
         mView.setEnrollHelper(mEnrollHelper);
     }
 
@@ -53,8 +56,6 @@ public class UdfpsEnrollViewController extends UdfpsAnimationViewController<Udfp
     protected void onViewAttached() {
         super.onViewAttached();
         if (mEnrollHelper.shouldShowProgressBar()) {
-            mProgressBar.setVisibility(View.VISIBLE);
-
             // Only need enrollment updates if the progress bar is showing :)
             mEnrollHelper.setListener(mEnrollHelperListener);
         }
@@ -78,23 +79,11 @@ public class UdfpsEnrollViewController extends UdfpsAnimationViewController<Udfp
 
     @Override
     public int getPaddingX() {
-        return (int) Math.ceil(UdfpsEnrollDrawable.PROGRESS_BAR_RADIUS);
+        return mEnrollProgressBarRadius;
     }
 
     @Override
     public int getPaddingY() {
-        return (int) Math.ceil(UdfpsEnrollDrawable.PROGRESS_BAR_RADIUS);
+        return mEnrollProgressBarRadius;
     }
-
-    private final UdfpsEnrollHelper.Listener mEnrollHelperListener =
-            new UdfpsEnrollHelper.Listener() {
-        @Override
-        public void onEnrollmentProgress(int remaining, int totalSteps) {
-            final int interpolatedProgress = mProgressBar.getMax()
-                    * Math.max(0, totalSteps + 1 - remaining) / (totalSteps + 1);
-
-            mProgressBar.setProgress(interpolatedProgress, true);
-            mView.onEnrollmentProgress(remaining, totalSteps);
-        }
-    };
 }
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsProgressBar.java b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsProgressBar.java
deleted file mode 100644
index 84e2fab7bf6b2..0000000000000
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsProgressBar.java
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.systemui.biometrics;
-
-import android.content.Context;
-import android.util.AttributeSet;
-import android.widget.ProgressBar;
-
-import com.android.systemui.R;
-
-/**
- * A (determinate) progress bar in the form of a ring. The progress bar goes clockwise starting
- * from the 12 o'clock position. This view maintain equal width and height using a strategy similar
- * to "centerInside" for ImageView.
- */
-public class UdfpsProgressBar extends ProgressBar {
-
-    public UdfpsProgressBar(Context context) {
-        this(context, null);
-    }
-
-    public UdfpsProgressBar(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
-
-    public UdfpsProgressBar(Context context, AttributeSet attrs, int defStyleAttr) {
-        this(context, attrs, defStyleAttr, R.style.UdfpsProgressBarStyle);
-    }
-
-    public UdfpsProgressBar(Context context, AttributeSet attrs, int defStyleAttr,
-            int defStyleRes) {
-        super(context, attrs, defStyleAttr, defStyleRes);
-    }
-
-    @Override
-    protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
-
-        final int measuredHeight = getMeasuredHeight();
-        final int measuredWidth = getMeasuredWidth();
-
-        final int length = Math.min(measuredHeight, measuredWidth);
-        setMeasuredDimension(length, length);
-    }
-}
\ No newline at end of file
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/Utils.java b/packages/SystemUI/src/com/android/systemui/biometrics/Utils.java
index 4d4e4dd0ad060..322584c4aa690 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/Utils.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/Utils.java
@@ -29,6 +29,7 @@ import android.content.pm.PackageManager;
 import android.hardware.biometrics.PromptInfo;
 import android.hardware.biometrics.SensorPropertiesInternal;
 import android.os.UserManager;
+import android.util.DisplayMetrics;
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityManager;
@@ -49,6 +50,16 @@ public class Utils {
     @IntDef({CREDENTIAL_PIN, CREDENTIAL_PATTERN, CREDENTIAL_PASSWORD})
     @interface CredentialType {}
 
+    static float dpToPixels(Context context, float dp) {
+        return dp * ((float) context.getResources().getDisplayMetrics().densityDpi
+                / DisplayMetrics.DENSITY_DEFAULT);
+    }
+
+    static float pixelsToDp(Context context, float pixels) {
+        return pixels / ((float) context.getResources().getDisplayMetrics().densityDpi
+                / DisplayMetrics.DENSITY_DEFAULT);
+    }
+
     static void notifyAccessibilityContentChanged(AccessibilityManager am, ViewGroup view) {
         if (!am.isEnabled()) {
             return;