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Commit ce140213 authored by Jon Miranda's avatar Jon Miranda
Browse files

Tweaks to opening app window animation. 

We decrease the the durations for the downward app launch animations (by 80%)
except for the scale animation.

We do this because we want the window to reach the center faster so that the
window never goes off screen as it scales up.

Bug: 78891245

Change-Id: I6ece6ee1f01d32f2fcee42bba6a99c72b82f9023
parent 3aa3eb51

quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java

+27 −8
Original line number Diff line number Diff line
@@ -93,7 +93,12 @@ public class LauncherAppTransitionManagerImpl extends LauncherAppTransitionManag 


    private static final int APP_LAUNCH_DURATION = 500;

    // Use a shorter duration for x or y translation to create a curve effect

    private static final int APP_LAUNCH_CURVED_DURATION = 233;

    private static final int APP_LAUNCH_CURVED_DURATION = APP_LAUNCH_DURATION / 2;

    // We scale the durations for the downward app launch animations (minus the scale animation).

    private static final float APP_LAUNCH_DOWN_DUR_SCALE_FACTOR = 0.8f;

    private static final int APP_LAUNCH_ALPHA_START_DELAY = 32;

    private static final int APP_LAUNCH_ALPHA_DURATION = 50;



    public static final int RECENTS_LAUNCH_DURATION = 336;

    private static final int LAUNCHER_RESUME_START_DELAY = 100;

    private static final int CLOSING_TRANSITION_DURATION_MS = 350;
@@ -414,10 +419,17 @@ public class LauncherAppTransitionManagerImpl extends LauncherAppTransitionManag 
        ObjectAnimator x = ObjectAnimator.ofFloat(mFloatingView, View.TRANSLATION_X, 0f, dX);

        ObjectAnimator y = ObjectAnimator.ofFloat(mFloatingView, View.TRANSLATION_Y, 0f, dY);



        // Adjust the duration to change the "curve" of the app icon to the center.

        boolean isBelowCenterY = lp.topMargin < centerY;

        x.setDuration(isBelowCenterY ? APP_LAUNCH_DURATION : APP_LAUNCH_CURVED_DURATION);

        y.setDuration(isBelowCenterY ? APP_LAUNCH_CURVED_DURATION : APP_LAUNCH_DURATION);

        // Use upward animation for apps that are either on the bottom half of the screen, or are

        // relatively close to the center.

        boolean useUpwardAnimation = lp.topMargin > centerY

                || Math.abs(dY) < mLauncher.getDeviceProfile().cellHeightPx;

        if (useUpwardAnimation) {

            x.setDuration(APP_LAUNCH_CURVED_DURATION);

            y.setDuration(APP_LAUNCH_DURATION);

        } else {

            x.setDuration((long) (APP_LAUNCH_DOWN_DUR_SCALE_FACTOR * APP_LAUNCH_DURATION));

            y.setDuration((long) (APP_LAUNCH_DOWN_DUR_SCALE_FACTOR * APP_LAUNCH_CURVED_DURATION));

        }

        x.setInterpolator(AGGRESSIVE_EASE);

        y.setInterpolator(AGGRESSIVE_EASE);

        appIconAnimatorSet.play(x);
@@ -430,13 +442,20 @@ public class LauncherAppTransitionManagerImpl extends LauncherAppTransitionManag 
        float scale = Math.max(maxScaleX, maxScaleY);

        ObjectAnimator scaleAnim = ObjectAnimator

                .ofFloat(mFloatingView, SCALE_PROPERTY, startScale, scale);

        scaleAnim.setDuration(APP_LAUNCH_DURATION).setInterpolator(Interpolators.EXAGGERATED_EASE);

        scaleAnim.setDuration(APP_LAUNCH_DURATION)

                .setInterpolator(Interpolators.EXAGGERATED_EASE);

        appIconAnimatorSet.play(scaleAnim);



        // Fade out the app icon.

        ObjectAnimator alpha = ObjectAnimator.ofFloat(mFloatingView, View.ALPHA, 1f, 0f);

        alpha.setStartDelay(32);

        alpha.setDuration(50);

        if (useUpwardAnimation) {

            alpha.setStartDelay(APP_LAUNCH_ALPHA_START_DELAY);

            alpha.setDuration(APP_LAUNCH_ALPHA_DURATION);

        } else {

            alpha.setStartDelay((long) (APP_LAUNCH_DOWN_DUR_SCALE_FACTOR

                    * APP_LAUNCH_ALPHA_START_DELAY));

            alpha.setDuration((long) (APP_LAUNCH_DOWN_DUR_SCALE_FACTOR * APP_LAUNCH_ALPHA_DURATION));

        }

        alpha.setInterpolator(LINEAR);

        appIconAnimatorSet.play(alpha);