Predictive swipe: show extra app icons at bottom of All Apps's RecyclerViews (3774824c) · Commits · e / os / BlissLauncher3

res/values/id.xml

+2 −0

Original line number	Diff line number	Diff line
		@@ -37,4 +37,6 @@
		<item type="id" name="quick_settings_button" />
		<item type="id" name="notifications_button" />
		<item type="id" name="cache_entry_tag_id" />

		<item type="id" name="saved_clip_children_tag_id" />
		</resources>

src/com/android/launcher3/allapps/AllAppsGridAdapter.java

+14 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import android.view.View;
		import android.view.ViewGroup;
		import android.view.accessibility.AccessibilityEvent;

		import androidx.annotation.Px;
		import androidx.core.view.accessibility.AccessibilityEventCompat;
		import androidx.core.view.accessibility.AccessibilityNodeInfoCompat;
		import androidx.core.view.accessibility.AccessibilityRecordCompat;
		@@ -143,6 +144,19 @@ public class AllAppsGridAdapter<T extends Context & ActivityContext> extends
		cic.isSelected()));
		}

		/**
		* We need to extend all apps' RecyclerView's bottom by 5% of view height to ensure extra
		* roll(s) of app icons is rendered at the bottom, so that they can fill the bottom gap
		* created during predictive back's scale animation from all apps to home.
		*/
		@Override
		protected void calculateExtraLayoutSpace(RecyclerView.State state, int[] extraLayoutSpace) {
		super.calculateExtraLayoutSpace(state, extraLayoutSpace);
		@Px int extraSpacePx = (int) (getHeight()
		* (1 - AllAppsTransitionController.SWIPE_ALL_APPS_TO_HOME_MIN_SCALE) / 2);
		extraLayoutSpace[1] = Math.max(extraLayoutSpace[1], extraSpacePx);
		}

		/**
		* Returns the number of rows before {@param adapterPosition}, including this position
		* which should not be counted towards the collection info.

src/com/android/launcher3/allapps/AllAppsTransitionController.java

+92 −3

Original line number	Diff line number	Diff line
		@@ -32,14 +32,18 @@ import android.animation.ObjectAnimator;
		import android.util.FloatProperty;
		import android.view.HapticFeedbackConstants;
		import android.view.View;
		import android.view.ViewGroup;
		import android.view.ViewParent;
		import android.view.animation.Interpolator;

		import androidx.annotation.FloatRange;
		import androidx.annotation.Nullable;

		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.R;
		import com.android.launcher3.anim.AnimatedFloat;
		import com.android.launcher3.anim.AnimatorListeners;
		import com.android.launcher3.anim.Interpolators;
		@@ -66,7 +70,7 @@ 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;
		public 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 =
		@@ -168,6 +172,8 @@ public class AllAppsTransitionController

		private boolean mIsTablet;

		private boolean mHasScaleEffect;

		public AllAppsTransitionController(Launcher l) {
		mLauncher = l;
		DeviceProfile dp = mLauncher.getDeviceProfile();
		@@ -276,8 +282,18 @@ public class AllAppsTransitionController
		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.
		// Disable view clipping from all apps' RecyclerView up to all apps view during scale
		// animation, and vice versa. The goal is to display extra roll(s) app icons (rendered in
		// {@link AppsGridLayoutManager#calculateExtraLayoutSpace}) during scale animation.
		boolean hasScaleEffect = scaleProgress < 1f;
		if (hasScaleEffect != mHasScaleEffect) {
		mHasScaleEffect = hasScaleEffect;
		if (mHasScaleEffect) {
		setClipChildrenOnViewTree(rv, mLauncher.getAppsView(), false);
		} else {
		restoreClipChildrenOnViewTree(rv, mLauncher.getAppsView());
		}
		}
		}

		private void animateAllAppsToNoScale() {
		@@ -380,6 +396,79 @@ public class AllAppsTransitionController
		mShouldControlKeyboard = !mLauncher.getSearchConfig().isKeyboardSyncEnabled();
		}

		/**
		* Recursively call {@link ViewGroup#setClipChildren(boolean)} from {@link View} to ts parent
		* (direct or indirect) inclusive. This method will also save the old clipChildren value on each
		* view with {@link View#setTag(int, Object)}, which can be restored in
		* {@link #restoreClipChildrenOnViewTree(View, ViewParent)}.
		*
		* Note that if parent is null or not a parent of the view, this method will be applied all the
		* way to root view.
		*
		* @param v child view
		* @param parent direct or indirect parent of child view
		* @param clipChildren whether we should clip children
		*/
		private static void setClipChildrenOnViewTree(
		@Nullable View v,
		@Nullable ViewParent parent,
		boolean clipChildren) {
		if (v == null) {
		return;
		}

		if (v instanceof ViewGroup) {
		ViewGroup viewGroup = (ViewGroup) v;
		boolean oldClipChildren = viewGroup.getClipChildren();
		if (oldClipChildren != clipChildren) {
		v.setTag(R.id.saved_clip_children_tag_id, oldClipChildren);
		viewGroup.setClipChildren(clipChildren);
		}
		}

		if (v == parent) {
		return;
		}

		if (v.getParent() instanceof View) {
		setClipChildrenOnViewTree((View) v.getParent(), parent, clipChildren);
		}
		}

		/**
		* Recursively call {@link ViewGroup#setClipChildren(boolean)} to restore clip children value
		* set in {@link #setClipChildrenOnViewTree(View, ViewParent, boolean)} on view to its parent
		* (direct or indirect) inclusive.
		*
		* Note that if parent is null or not a parent of the view, this method will be applied all the
		* way to root view.
		*
		* @param v child view
		* @param parent direct or indirect parent of child view
		*/
		private static void restoreClipChildrenOnViewTree(
		@Nullable View v, @Nullable ViewParent parent) {
		if (v == null) {
		return;
		}
		if (v instanceof ViewGroup) {
		ViewGroup viewGroup = (ViewGroup) v;
		Object viewTag = viewGroup.getTag(R.id.saved_clip_children_tag_id);
		if (viewTag instanceof Boolean) {
		viewGroup.setClipChildren((boolean) viewTag);
		viewGroup.setTag(R.id.saved_clip_children_tag_id, null);
		}
		}

		if (v == parent) {
		return;
		}

		if (v.getParent() instanceof View) {
		restoreClipChildrenOnViewTree((View) v.getParent(), parent);
		}
		}

		/**
		* Updates the total scroll range but does not update the UI.
		*/