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Commit ff5f25dd authored by Martin Olsson's avatar Martin Olsson Committed by Lingxue Luo
Browse files

DO NOT MERGE Screen lock: Fade out recorded pattern smoothly 

After setting up a new lock pattern it fades
out smoothly instead of toggling visibility

Bug: 253102373
Test: Manually set up new pattern
Settings -> Security -> Screen lock -> Pattern

Change-Id: I2d9ca503c2cea57036424d5b700314efbe3497ab
parent 00558ac5

core/java/com/android/internal/widget/LockPatternView.java

+64 −2
Original line number Diff line number Diff line
@@ -80,6 +80,7 @@ public class LockPatternView extends View { 
    private static final int DOT_ACTIVATION_DURATION_MILLIS = 50;

    private static final int DOT_RADIUS_INCREASE_DURATION_MILLIS = 96;

    private static final int DOT_RADIUS_DECREASE_DURATION_MILLIS = 192;

    private static final int ALPHA_MAX_VALUE = 255;

    private static final float MIN_DOT_HIT_FACTOR = 0.2f;

    private final CellState[][] mCellStates;
@@ -92,6 +93,8 @@ public class LockPatternView extends View { 
    private final int mPathWidth;

    private final int mLineFadeOutAnimationDurationMs;

    private final int mLineFadeOutAnimationDelayMs;

    private final int mFadePatternAnimationDurationMs;

    private final int mFadePatternAnimationDelayMs;



    private boolean mDrawingProfilingStarted = false;
@@ -148,6 +151,10 @@ public class LockPatternView extends View { 
    private boolean mPatternInProgress = false;

    private boolean mFadePattern = true;



    private boolean mFadeClear = false;

    private int mFadeAnimationAlpha = ALPHA_MAX_VALUE;

    private final Path mPatternPath = new Path();



    @UnsupportedAppUsage

    private float mSquareWidth;

    @UnsupportedAppUsage
@@ -169,6 +176,7 @@ public class LockPatternView extends View { 


    private final Interpolator mFastOutSlowInInterpolator;

    private final Interpolator mLinearOutSlowInInterpolator;

    private final Interpolator mStandardAccelerateInterpolator;

    private final PatternExploreByTouchHelper mExploreByTouchHelper;



    private Drawable mSelectedDrawable;
@@ -356,6 +364,11 @@ public class LockPatternView extends View { 
        mLineFadeOutAnimationDelayMs =

            getResources().getInteger(R.integer.lock_pattern_line_fade_out_delay);



        mFadePatternAnimationDurationMs =

                getResources().getInteger(R.integer.lock_pattern_fade_pattern_duration);

        mFadePatternAnimationDelayMs =

                getResources().getInteger(R.integer.lock_pattern_fade_pattern_delay);



        mDotSize = getResources().getDimensionPixelSize(R.dimen.lock_pattern_dot_size);

        mDotSizeActivated = getResources().getDimensionPixelSize(

                R.dimen.lock_pattern_dot_size_activated);
@@ -386,6 +399,8 @@ public class LockPatternView extends View { 
                AnimationUtils.loadInterpolator(context, android.R.interpolator.fast_out_slow_in);

        mLinearOutSlowInInterpolator =

                AnimationUtils.loadInterpolator(context, android.R.interpolator.linear_out_slow_in);

        mStandardAccelerateInterpolator =

                AnimationUtils.loadInterpolator(context, android.R.interpolator.fast_out_linear_in);

        mExploreByTouchHelper = new PatternExploreByTouchHelper(this);

        setAccessibilityDelegate(mExploreByTouchHelper);
@@ -626,6 +641,15 @@ public class LockPatternView extends View { 
        resetPattern();

    }



    /**

     * Clear the pattern by fading it out.

     */

    @UnsupportedAppUsage

    public void fadeClearPattern() {

        mFadeClear = true;

        startFadePatternAnimation();

    }



    @Override

    protected boolean dispatchHoverEvent(MotionEvent event) {

        // Dispatch to onHoverEvent first so mPatternInProgress is up to date when the
@@ -643,6 +667,7 @@ public class LockPatternView extends View { 
            resetLastActivatedCellProgress();

        }

        mPattern.clear();

        mPatternPath.reset();

        clearPatternDrawLookup();

        mPatternDisplayMode = DisplayMode.Correct;

        invalidate();
@@ -815,6 +840,33 @@ public class LockPatternView extends View { 
        notifyCellAdded();

    }



    private void startFadePatternAnimation() {

        AnimatorSet animatorSet = new AnimatorSet();

        animatorSet.play(createFadePatternAnimation());

        animatorSet.addListener(new AnimatorListenerAdapter() {

            @Override

            public void onAnimationEnd(Animator animation) {

                mFadeAnimationAlpha = ALPHA_MAX_VALUE;

                mFadeClear = false;

                resetPattern();

            }

        });

        animatorSet.start();



    }



    private Animator createFadePatternAnimation() {

        ValueAnimator valueAnimator = ValueAnimator.ofInt(ALPHA_MAX_VALUE, 0);

        valueAnimator.addUpdateListener(animation -> {

            mFadeAnimationAlpha = (int) animation.getAnimatedValue();

            invalidate();

        });

        valueAnimator.setInterpolator(mStandardAccelerateInterpolator);

        valueAnimator.setStartDelay(mFadePatternAnimationDelayMs);

        valueAnimator.setDuration(mFadePatternAnimationDurationMs);

        return valueAnimator;

    }



    private void startCellActivatedAnimation(Cell cell) {

        startCellActivationAnimation(cell, CELL_ACTIVATE);

    }
@@ -1247,7 +1299,7 @@ public class LockPatternView extends View { 
        // draw the path of the pattern (unless we are in stealth mode)

        final boolean drawPath = !mInStealthMode;



        if (drawPath) {

        if (drawPath && !mFadeClear) {

            mPathPaint.setColor(getCurrentColor(true /* partOfPattern */));



            boolean anyCircles = false;
@@ -1285,6 +1337,11 @@ public class LockPatternView extends View { 
                    }

                    drawLineSegment(canvas, /* startX = */ lastX, /* startY = */ lastY, endX, endY,

                            mLineFadeStart[i], elapsedRealtime);



                    Path tempPath = new Path();

                    tempPath.moveTo(lastX, lastY);

                    tempPath.lineTo(centerX, centerY);

                    mPatternPath.addPath(tempPath);

                }

                lastX = centerX;

                lastY = centerY;
@@ -1303,6 +1360,11 @@ public class LockPatternView extends View { 
            }

        }



        if (mFadeClear) {

            mPathPaint.setAlpha(mFadeAnimationAlpha);

            canvas.drawPath(mPatternPath, mPathPaint);

        }



        // draw the circles

        for (int i = 0; i < 3; i++) {

            float centerY = getCenterYForRow(i);

core/res/res/values/dimens.xml

+3 −0
Original line number Diff line number Diff line
@@ -685,6 +685,9 @@ 
    <!-- Parameters applied to line disappearing animation in LockPatternView in milliseconds. -->

    <integer name="lock_pattern_line_fade_out_duration">500</integer>

    <integer name="lock_pattern_line_fade_out_delay">150</integer>

    <!-- Parameters applied to fade pattern animation in LockPatternView in milliseconds. -->

    <integer name="lock_pattern_fade_pattern_duration">200</integer>

    <integer name="lock_pattern_fade_pattern_delay">2300</integer>



    <dimen name="text_handle_min_size">40dp</dimen>

core/res/res/values/symbols.xml

+2 −0
Original line number Diff line number Diff line
@@ -1283,6 +1283,8 @@ 
  <java-symbol type="dimen" name="lock_pattern_fade_away_gradient_width" />

  <java-symbol type="integer" name="lock_pattern_line_fade_out_duration" />

  <java-symbol type="integer" name="lock_pattern_line_fade_out_delay" />

  <java-symbol type="integer" name="lock_pattern_fade_pattern_delay" />

  <java-symbol type="integer" name="lock_pattern_fade_pattern_duration" />

  <java-symbol type="drawable" name="clock_dial" />

  <java-symbol type="drawable" name="clock_hand_hour" />

  <java-symbol type="drawable" name="clock_hand_minute" />