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Commit 3644f703 authored by Kevin Chyn's avatar Kevin Chyn
Browse files

Add prop to test various enrollment scaling 

Fixes: 182511708
Test: adb shell settings put secure com.android.systemui.biometrics.UdfpsEnrollHelper.scale 0.1
Change-Id: Id4bcf241cdedb5c3612e3b8f3217e9d99fd83f0a
parent 516e54a8

packages/SystemUI/src/com/android/systemui/biometrics/UdfpsEnrollHelper.java

+17 −2
Original line number Diff line number Diff line
@@ -21,6 +21,9 @@ import android.annotation.Nullable; 
import android.content.Context;

import android.graphics.PointF;

import android.hardware.fingerprint.IUdfpsOverlayController;

import android.os.Build;

import android.os.UserHandle;

import android.provider.Settings;

import android.util.TypedValue;



import java.util.ArrayList;
@@ -32,6 +35,10 @@ import java.util.List; 
public class UdfpsEnrollHelper {

    private static final String TAG = "UdfpsEnrollHelper";



    private static final String SCALE_OVERRIDE =

            "com.android.systemui.biometrics.UdfpsEnrollHelper.scale";

    private static final float SCALE = 0.5f;



    // Enroll with two center touches before going to guided enrollment

    private static final int NUM_CENTER_TOUCHES = 2;
@@ -39,9 +46,10 @@ public class UdfpsEnrollHelper { 
        void onEnrollmentProgress(int remaining, int totalSteps);

    }



    @NonNull private final Context mContext;

    // IUdfpsOverlayController reason

    private final int mEnrollReason;

    private final List<PointF> mGuidedEnrollmentPoints;

    @NonNull private final List<PointF> mGuidedEnrollmentPoints;



    private int mTotalSteps = -1;

    private int mRemainingSteps = -1;
@@ -53,6 +61,7 @@ public class UdfpsEnrollHelper { 
    @Nullable Listener mListener;



    public UdfpsEnrollHelper(@NonNull Context context, int reason) {

        mContext = context;

        mEnrollReason = reason;

        mGuidedEnrollmentPoints = new ArrayList<>();
@@ -121,9 +130,15 @@ public class UdfpsEnrollHelper { 


    @NonNull

    PointF getNextGuidedEnrollmentPoint() {

        float scale = SCALE;

        if (Build.IS_ENG || Build.IS_USERDEBUG) {

            scale = Settings.Secure.getFloatForUser(mContext.getContentResolver(),

                    SCALE_OVERRIDE, SCALE,

                    UserHandle.USER_CURRENT);

        }

        final int index = mLocationsEnrolled - NUM_CENTER_TOUCHES;

        final PointF originalPoint = mGuidedEnrollmentPoints

                .get(index % mGuidedEnrollmentPoints.size());

        return new PointF(originalPoint.x * 0.5f, originalPoint.y * 0.5f);

        return new PointF(originalPoint.x * scale, originalPoint.y * scale);

    }

}