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Support predictive back from all apps to home

Browse Source 
bug: b/238475505
Test: manual

Change-Id: Ibf4f7f41a26b044a538e2cd566d2297ed88f1b99
This commit is contained in:
Fengjiang Li
2022-12-19 14:42:14 -08:00
parent bf69ef034a
commit e884c2c79f
9 changed files with 171 additions and 12 deletions
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56
src/com/android/launcher3/allapps/AllAppsTransitionController.java
View File

@@ -15,6 +15,7 @@
*/
package com.android.launcher3.allapps;
import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
import static com.android.launcher3.LauncherState.ALL_APPS;
import static com.android.launcher3.LauncherState.ALL_APPS_CONTENT;
@@ -33,11 +34,15 @@ import android.view.HapticFeedbackConstants;
import android.view.View;
import android.view.animation.Interpolator;
import androidx.annotation.FloatRange;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.DeviceProfile.OnDeviceProfileChangeListener;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherState;
import com.android.launcher3.anim.AnimatedFloat;
import com.android.launcher3.anim.AnimatorListeners;
import com.android.launcher3.anim.Interpolators;
import com.android.launcher3.anim.PendingAnimation;
import com.android.launcher3.anim.PropertySetter;
import com.android.launcher3.statemanager.StateManager.StateHandler;
@@ -61,6 +66,8 @@ public class AllAppsTransitionController
implements StateHandler<LauncherState>, OnDeviceProfileChangeListener {
// This constant should match the second derivative of the animator interpolator.
public static final float INTERP_COEFF = 1.7f;
private static final float SWIPE_ALL_APPS_TO_HOME_MIN_SCALE = 0.9f;
private static final int REVERT_SWIPE_ALL_APPS_TO_HOME_ANIMATION_DURATION_MS = 200;
public static final FloatProperty<AllAppsTransitionController> ALL_APPS_PROGRESS =
new FloatProperty<AllAppsTransitionController>("allAppsProgress") {
@@ -139,6 +146,7 @@ public class AllAppsTransitionController
private ActivityAllAppsContainerView<Launcher> mAppsView;
private final Launcher mLauncher;
private final AnimatedFloat mAllAppScale = new AnimatedFloat(this::onScaleProgressChanged);
private boolean mIsVerticalLayout;
// Whether this class should take care of closing the keyboard.
@@ -232,6 +240,52 @@ public class AllAppsTransitionController
onProgressAnimationEnd();
}
@Override
public void onBackProgressed(
LauncherState toState, @FloatRange(from = 0.0, to = 1.0) float backProgress) {
if (!mLauncher.isInState(ALL_APPS) || !NORMAL.equals(toState)) {
return;
}
float deceleratedProgress =
Interpolators.PREDICTIVE_BACK_DECELERATED_EASE.getInterpolation(backProgress);
float scaleProgress = SWIPE_ALL_APPS_TO_HOME_MIN_SCALE
+ (1 - SWIPE_ALL_APPS_TO_HOME_MIN_SCALE) * (1 - deceleratedProgress);
mAllAppScale.updateValue(scaleProgress);
}
@Override
public void onBackCancelled(LauncherState toState) {
if (!mLauncher.isInState(ALL_APPS) || !NORMAL.equals(toState)) {
return;
}
// TODO: once ag/20649618 is picked into tm-qpr, we don't need to animate back on cancel
// swipe because framework will do that for us in {@link #onBackProgressed}.
animateAllAppsToNoScale();
}
private void onScaleProgressChanged() {
final float scaleProgress = mAllAppScale.value;
SCALE_PROPERTY.set(mLauncher.getAppsView(), scaleProgress);
mLauncher.getScrimView().setScrimHeaderScale(scaleProgress);
AllAppsRecyclerView rv = mLauncher.getAppsView().getActiveRecyclerView();
if (rv != null && rv.getScrollbar() != null) {
rv.getScrollbar().setVisibility(scaleProgress < 1f ? View.INVISIBLE : View.VISIBLE);
}
// TODO(b/264906511): We need to disable view clipping on all apps' parent views so
// that the extra roll of app icons are displayed.
}
private void animateAllAppsToNoScale() {
mAllAppScale.animateToValue(1f)
.setDuration(REVERT_SWIPE_ALL_APPS_TO_HOME_ANIMATION_DURATION_MS)
.start();
}
/**
* Creates an animation which updates the vertical transition progress and updates all the
* dependent UI using various animation events
@@ -258,6 +312,8 @@ public class AllAppsTransitionController
if (config.userControlled && success && mShouldControlKeyboard) {
mLauncher.getAppsView().getSearchUiManager().getEditText().hideKeyboard();
}
mAllAppScale.updateValue(1f);
});
}