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Commit 1fd8cccc authored by Aaron Liu's avatar Aaron Liu
Browse files

Add a staggered delete animation. 

For when we long press the delete button for the pin screen, we want to
stagger the deletion of each pin dot. The maximum time for deleting all
of dots does not exceed 200ms.

Fixes: 285828860
Test: long press delete with a bunch of dots
Flag: NONE
Change-Id: Ib7764b77c3adec6508612fe7e2367eee123ca8a2
parent fe2b9e79

packages/SystemUI/src/com/android/keyguard/PinShapeNonHintingView.java

+18 −2
Original line number Diff line number Diff line
@@ -47,9 +47,11 @@ import com.android.systemui.res.R; 
 * non six digit pin on their device

 */

public class PinShapeNonHintingView extends LinearLayout implements PinShapeInput {



    private static final int RESET_STAGGER_DELAY = 40;

    private static final int RESET_MAX_DELAY = 200;

    private int mColor = Utils.getColorAttr(getContext(), PIN_SHAPES).getDefaultColor();

    private int mPosition = 0;

    private boolean mIsAnimatingReset = false;

    private final PinShapeAdapter mPinShapeAdapter;

    private ValueAnimator mValueAnimator = ValueAnimator.ofFloat(1f, 0f);

    private Rect mFirstChildVisibleRect = new Rect();
@@ -78,6 +80,9 @@ public class PinShapeNonHintingView extends LinearLayout implements PinShapeInpu 


    @Override

    public void append() {

        if (mIsAnimatingReset) {

            return;

        }

        int size = getResources().getDimensionPixelSize(R.dimen.password_shape_size);

        ImageView pinDot = new ImageView(getContext());

        pinDot.setLayoutParams(new LayoutParams(size, size));
@@ -131,9 +136,20 @@ public class PinShapeNonHintingView extends LinearLayout implements PinShapeInpu 


    @Override

    public void reset() {

        if (mPosition == 0) {

            return;

        }

        final int position = mPosition;

        float baseDelay = Math.min(RESET_MAX_DELAY / position, RESET_STAGGER_DELAY);

        mIsAnimatingReset = true;

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

            delete();

            int delayMillis = (int) (baseDelay * i);

            postDelayed(this::delete, delayMillis);

            // When we reach the last index, we want to send a signal that the animation is

            // complete.

            if (i == position - 1) {

                postDelayed(() -> mIsAnimatingReset = false, delayMillis);

            }

        }

    }