Simplifying some ActivityContext and StateManager methods

> Merging asContext and getContext meethod
> Simplifying some generic declaration in StateManager

Bug: 393703968
Flag: EXEMPT refactor
Test: Compilation
Change-Id: I679ac83e39b2a17f510698db15335aae8f735aad

24 files changed, 108 insertions, 154 deletions

diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index c81fce1cb3..23f4f6789e 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -1165,9 +1165,9 @@ public class QuickstepLauncher extends Launcher implements RecentsViewContainer,
                     .getHotseatTranslationXForNavBar(this, isBubblesOnLeft);
         }
         if (isBubbleBarEnabled()
-                && mDeviceProfile.shouldAdjustHotseatForBubbleBar(getContext(), hasBubbles())) {
+                && mDeviceProfile.shouldAdjustHotseatForBubbleBar(asContext(), hasBubbles())) {
             translationX += (int) mDeviceProfile
-                    .getHotseatAdjustedTranslation(getContext(), itemInfo.cellX);
+                    .getHotseatAdjustedTranslation(asContext(), itemInfo.cellX);
         }
         return translationX;
     }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java b/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
index dae63af097..10513c08c6 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java
@@ -48,8 +48,7 @@ public class AllAppsState extends LauncherState {
     }
 
     @Override
-    public <DEVICE_PROFILE_CONTEXT extends Context & ActivityContext>
-    int getTransitionDuration(DEVICE_PROFILE_CONTEXT context, boolean isToState) {
+    public int getTransitionDuration(ActivityContext context, boolean isToState) {
         return isToState
                 ? context.getDeviceProfile().allAppsOpenDuration
                 : context.getDeviceProfile().allAppsCloseDuration;
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java
index 932d241307..80fc5fa391 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewModalTaskState.java
@@ -17,12 +17,12 @@ package com.android.launcher3.uioverrides.states;
 
 import static com.android.launcher3.logging.StatsLogManager.LAUNCHER_STATE_OVERVIEW;
 
-import android.content.Context;
 import android.graphics.Rect;
 
 import com.android.launcher3.Flags;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
+import com.android.launcher3.views.ActivityContext;
 import com.android.quickstep.views.RecentsView;
 
 /**
@@ -39,7 +39,7 @@ public class OverviewModalTaskState extends OverviewState {
     }
 
     @Override
-    public int getTransitionDuration(Context launcher, boolean isToState) {
+    public int getTransitionDuration(ActivityContext launcher, boolean isToState) {
         return 300;
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
index 5c16a6227f..15216febd5 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -29,6 +29,7 @@ import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.Themes;
+import com.android.launcher3.views.ActivityContext;
 import com.android.quickstep.util.BaseDepthController;
 import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.views.RecentsView;
@@ -62,10 +63,10 @@ public class OverviewState extends LauncherState {
     }
 
     @Override
-    public int getTransitionDuration(Context context, boolean isToState) {
+    public int getTransitionDuration(ActivityContext context, boolean isToState) {
         if (isToState) {
             // In gesture modes, overview comes in all the way from the side, so give it more time.
-            return DisplayController.getNavigationMode(context).hasGestures
+            return DisplayController.getNavigationMode(context.asContext()).hasGestures
                     ? OVERVIEW_SLIDE_IN_DURATION
                     : OVERVIEW_POP_IN_DURATION;
         } else {
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java b/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java
index 3ae221bbeb..2631fbf0b6 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/SplitScreenSelectState.java
@@ -16,9 +16,8 @@
 
 package com.android.launcher3.uioverrides.states;
 
-import android.content.Context;
-
 import com.android.launcher3.Launcher;
+import com.android.launcher3.views.ActivityContext;
 import com.android.quickstep.util.SplitAnimationTimings;
 import com.android.quickstep.views.RecentsView;
 
@@ -43,11 +42,10 @@ public class SplitScreenSelectState extends OverviewState {
     }
 
     @Override
-    public int getTransitionDuration(Context context, boolean isToState) {
-        boolean isTablet = ((Launcher) context).getDeviceProfile().isTablet;
-        if (isToState && isTablet) {
+    public int getTransitionDuration(ActivityContext context, boolean isToState) {
+        if (isToState && context.getDeviceProfile().isTablet) {
             return SplitAnimationTimings.TABLET_ENTER_DURATION;
-        } else if (isToState && !isTablet) {
+        } else if (isToState) {
             return SplitAnimationTimings.PHONE_ENTER_DURATION;
         } else {
             return SplitAnimationTimings.ABORT_DURATION;
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
index cbfcda70f6..05d12c31af 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
@@ -186,7 +186,7 @@ public class NoButtonQuickSwitchTouchController implements TouchController,
             mIsTrackpadSwipe = isTrackpadFourFingerSwipe(ev);
             return mIsTrackpadSwipe;
         }
-        if (DesktopModeStatus.canEnterDesktopMode(mLauncher.getContext())
+        if (DesktopModeStatus.canEnterDesktopMode(mLauncher)
                 //TODO(b/345296916): replace with dev option once in teamfood
                 && Flags.enableQuickswitchDesktopSplitBugfix()
                 && mRecentsView.getNonDesktopTaskViewCount() < 1) {
diff --git a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
index 44fdaec4e2..b4b80c5705 100644
--- a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
+++ b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
@@ -128,8 +128,7 @@ public class FallbackRecentsStateController implements StateHandler<RecentsState
                 state.getScrimColor(mRecentsViewContainer.asContext()),
                 config.getInterpolator(ANIM_SCRIM_FADE, LINEAR));
         if (isSplitSelectionState(state)) {
-            int duration =
-                    state.getTransitionDuration(mRecentsViewContainer.asContext(), true);
+            int duration = state.getTransitionDuration(mRecentsViewContainer, true);
             // TODO (b/246851887): Pass in setter as a NO_ANIM PendingAnimation instead
             PendingAnimation pa = new PendingAnimation(duration);
             mRecentsView.createSplitSelectInitAnimation(pa, duration);
diff --git a/quickstep/src/com/android/quickstep/fallback/RecentsState.java b/quickstep/src/com/android/quickstep/fallback/RecentsState.java
index c2e7536c97..f27b60cb0a 100644
--- a/quickstep/src/com/android/quickstep/fallback/RecentsState.java
+++ b/quickstep/src/com/android/quickstep/fallback/RecentsState.java
@@ -27,6 +27,7 @@ import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.statemanager.BaseState;
 import com.android.launcher3.util.Themes;
+import com.android.launcher3.views.ActivityContext;
 import com.android.quickstep.views.RecentsViewContainer;
 
 /**
@@ -92,7 +93,7 @@ public class RecentsState implements BaseState<RecentsState> {
     }
 
     @Override
-    public int getTransitionDuration(Context context, boolean isToState) {
+    public int getTransitionDuration(ActivityContext context, boolean isToState) {
         return 250;
     }
 
diff --git a/quickstep/src/com/android/quickstep/fallback/window/RecentsWindowManager.kt b/quickstep/src/com/android/quickstep/fallback/window/RecentsWindowManager.kt
index 3082dc6898..07288d8f47 100644
--- a/quickstep/src/com/android/quickstep/fallback/window/RecentsWindowManager.kt
+++ b/quickstep/src/com/android/quickstep/fallback/window/RecentsWindowManager.kt
@@ -390,10 +390,6 @@ class RecentsWindowManager(context: Context, wallpaperColorHints: Int) :
         return systemUiController
     }
 
-    override fun getContext(): Context {
-        return this
-    }
-
     override fun getScrimView(): ScrimView? {
         return scrimView
     }
diff --git a/quickstep/src/com/android/quickstep/util/AnimUtils.java b/quickstep/src/com/android/quickstep/util/AnimUtils.java
index 31aca03ce6..fda0c29b68 100644
--- a/quickstep/src/com/android/quickstep/util/AnimUtils.java
+++ b/quickstep/src/com/android/quickstep/util/AnimUtils.java
@@ -78,8 +78,7 @@ public class AnimUtils {
             @NonNull SplitAnimationController animationController) {
         StateAnimationConfig config = new StateAnimationConfig();
         BaseState startState = stateManager.getState();
-        long duration = startState.getTransitionDuration(container.asContext(),
-                false /*isToState*/);
+        long duration = startState.getTransitionDuration(container, false /*isToState*/);
         if (duration == 0) {
             // Case where we're in contextual on workspace (NORMAL), which by default has 0
             // transition duration
diff --git a/quickstep/src/com/android/quickstep/views/RecentsViewContainer.java b/quickstep/src/com/android/quickstep/views/RecentsViewContainer.java
index 11e7d2cc41..e61d402698 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsViewContainer.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsViewContainer.java
@@ -63,14 +63,6 @@ public interface RecentsViewContainer extends ActivityContext {
     <T extends View> T getOverviewPanel();
 
     /**
-     * Dispatches a generic motion event to the view hierarchy.
-     * Returns the current RecentsViewContainer as context
-     */
-    default Context asContext() {
-        return (Context) this;
-    }
-
-    /**
      * @see Window.Callback#dispatchGenericMotionEvent(MotionEvent)
      */
     boolean dispatchGenericMotionEvent(MotionEvent ev);
diff --git a/src/com/android/launcher3/LauncherRootView.java b/src/com/android/launcher3/LauncherRootView.java
index a5b95c75f1..b8a0abd9e7 100644
--- a/src/com/android/launcher3/LauncherRootView.java
+++ b/src/com/android/launcher3/LauncherRootView.java
@@ -12,6 +12,7 @@ import android.view.WindowInsets;
 import com.android.launcher3.graphics.SysUiScrim;
 import com.android.launcher3.statemanager.StatefulContainer;
 import com.android.launcher3.util.window.WindowManagerProxy;
+import com.android.launcher3.views.ActivityContext;
 
 import java.util.Collections;
 import java.util.List;
@@ -36,7 +37,7 @@ public class LauncherRootView extends InsettableFrameLayout {
 
     public LauncherRootView(Context context, AttributeSet attrs) {
         super(context, attrs);
-        mStatefulContainer = StatefulContainer.fromContext(context);
+        mStatefulContainer = ActivityContext.lookupContext(context);
         mSysUiScrim = new SysUiScrim(this);
     }
 
@@ -54,7 +55,7 @@ public class LauncherRootView extends InsettableFrameLayout {
     @Override
     public WindowInsets onApplyWindowInsets(WindowInsets insets) {
         mStatefulContainer.handleConfigurationChanged(
-                mStatefulContainer.getContext().getResources().getConfiguration());
+                mStatefulContainer.asContext().getResources().getConfiguration());
         return updateInsets(insets);
     }
 
diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index 79e9bd2007..8c6555e9a9 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -118,7 +118,7 @@ public abstract class LauncherState implements BaseState<LauncherState> {
             LAUNCHER_STATE_HOME,
             FLAG_DISABLE_RESTORE | FLAG_WORKSPACE_ICONS_CAN_BE_DRAGGED | FLAG_HAS_SYS_UI_SCRIM) {
         @Override
-        public int getTransitionDuration(Context context, boolean isToState) {
+        public int getTransitionDuration(ActivityContext context, boolean isToState) {
             // Arbitrary duration, when going to NORMAL we use the state we're coming from instead.
             return 0;
         }
diff --git a/src/com/android/launcher3/graphics/SysUiScrim.java b/src/com/android/launcher3/graphics/SysUiScrim.java
index d59fc1934c..6f1d98fea9 100644
--- a/src/com/android/launcher3/graphics/SysUiScrim.java
+++ b/src/com/android/launcher3/graphics/SysUiScrim.java
@@ -40,6 +40,7 @@ import com.android.launcher3.testing.shared.ResourceUtils;
 import com.android.launcher3.util.ScreenOnTracker;
 import com.android.launcher3.util.ScreenOnTracker.ScreenOnListener;
 import com.android.launcher3.util.Themes;
+import com.android.launcher3.views.ActivityContext;
 
 /**
  * View scrim which draws behind hotseat and workspace
@@ -94,8 +95,8 @@ public class SysUiScrim implements View.OnAttachStateChangeListener {
 
     public SysUiScrim(View view) {
         mRoot = view;
-        mContainer = StatefulContainer.fromContext(view.getContext());
-        DisplayMetrics dm = mContainer.getContext().getResources().getDisplayMetrics();
+        mContainer = ActivityContext.lookupContext(view.getContext());
+        DisplayMetrics dm = mContainer.asContext().getResources().getDisplayMetrics();
 
         mTopMaskHeight = ResourceUtils.pxFromDp(TOP_MASK_HEIGHT_DP, dm);
         mBottomMaskHeight = ResourceUtils.pxFromDp(BOTTOM_MASK_HEIGHT_DP, dm);
@@ -173,12 +174,12 @@ public class SysUiScrim implements View.OnAttachStateChangeListener {
 
     @Override
     public void onViewAttachedToWindow(View view) {
-        ScreenOnTracker.INSTANCE.get(mContainer.getContext()).addListener(mScreenOnListener);
+        ScreenOnTracker.INSTANCE.get(mContainer.asContext()).addListener(mScreenOnListener);
     }
 
     @Override
     public void onViewDetachedFromWindow(View view) {
-        ScreenOnTracker.INSTANCE.get(mContainer.getContext()).removeListener(mScreenOnListener);
+        ScreenOnTracker.INSTANCE.get(mContainer.asContext()).removeListener(mScreenOnListener);
     }
 
     /**
@@ -213,7 +214,7 @@ public class SysUiScrim implements View.OnAttachStateChangeListener {
     }
 
     private Bitmap createDitheredAlphaMask(int height, @ColorInt int[] colors, float[] positions) {
-        DisplayMetrics dm = mContainer.getContext().getResources().getDisplayMetrics();
+        DisplayMetrics dm = mContainer.asContext().getResources().getDisplayMetrics();
         int width = ResourceUtils.pxFromDp(ALPHA_MASK_BITMAP_WIDTH_DP, dm);
         Bitmap dst = Bitmap.createBitmap(width, height, Bitmap.Config.ALPHA_8);
         Canvas c = new Canvas(dst);
diff --git a/src/com/android/launcher3/statemanager/BaseState.java b/src/com/android/launcher3/statemanager/BaseState.java
index f6b610c9bf..b7dd2bf01d 100644
--- a/src/com/android/launcher3/statemanager/BaseState.java
+++ b/src/com/android/launcher3/statemanager/BaseState.java
@@ -15,15 +15,13 @@
  */
 package com.android.launcher3.statemanager;
 
-import android.content.Context;
-
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.views.ActivityContext;
 
 /**
  * Interface representing a state of a StatefulContainer
  */
-public interface BaseState<T extends BaseState> {
+public interface BaseState<T> {
 
     // Flag to indicate that Launcher is non-interactive in this state
     int FLAG_NON_INTERACTIVE = 1 << 0;
@@ -37,8 +35,7 @@ public interface BaseState<T extends BaseState> {
     /**
      * @return How long the animation to this state should take (or from this state to NORMAL).
      */
-    <DEVICE_PROFILE_CONTEXT extends Context & ActivityContext>
-    int getTransitionDuration(DEVICE_PROFILE_CONTEXT context, boolean isToState);
+    int getTransitionDuration(ActivityContext context, boolean isToState);
 
     /**
      * Returns the state to go back to from this state
diff --git a/src/com/android/launcher3/statemanager/StateManager.java b/src/com/android/launcher3/statemanager/StateManager.java
index 763f3bab38..a125331865 100644
--- a/src/com/android/launcher3/statemanager/StateManager.java
+++ b/src/com/android/launcher3/statemanager/StateManager.java
@@ -27,7 +27,6 @@ import android.animation.Animator;
 import android.animation.Animator.AnimatorListener;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
-import android.content.Context;
 import android.os.Handler;
 import android.os.Looper;
 import android.util.Log;
@@ -50,50 +49,49 @@ import java.util.stream.Collectors;
 /**
  * Class to manage transitions between different states for a StatefulActivity based on different
  * states
- * @param STATE_TYPE Basestate used by the state manager
- * @param STATEFUL_CONTAINER container object used to manage state
+ * @param <S> Basestate used by the state manager
+ * @param <T> container object used to manage state
  */
-public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
-        STATEFUL_CONTAINER extends Context & StatefulContainer<STATE_TYPE>> {
+public class StateManager<S extends BaseState<S>, T extends StatefulContainer<S>> {
 
     public static final String TAG = "StateManager";
     // b/279059025, b/325463989
     private static final boolean DEBUG = true;
 
-    private final AnimationState mConfig = new AnimationState();
+    private final AnimationState<S> mConfig = new AnimationState<>();
     private final Handler mUiHandler;
-    private final STATEFUL_CONTAINER mStatefulContainer;
-    private final ArrayList<StateListener<STATE_TYPE>> mListeners = new ArrayList<>();
-    private final STATE_TYPE mBaseState;
+    private final T mContainer;
+    private final ArrayList<StateListener<S>> mListeners = new ArrayList<>();
+    private final S mBaseState;
 
     // Animators which are run on properties also controlled by state animations.
-    private final AtomicAnimationFactory mAtomicAnimationFactory;
+    private final AtomicAnimationFactory<S> mAtomicAnimationFactory;
 
-    private StateHandler<STATE_TYPE>[] mStateHandlers;
-    private STATE_TYPE mState;
+    private StateHandler<S>[] mStateHandlers;
+    private S mState;
 
-    private STATE_TYPE mLastStableState;
-    private STATE_TYPE mCurrentStableState;
+    private S mLastStableState;
+    private S mCurrentStableState;
 
-    private STATE_TYPE mRestState;
+    private S mRestState;
 
-    public StateManager(STATEFUL_CONTAINER container, STATE_TYPE baseState) {
+    public StateManager(T container, S baseState) {
         mUiHandler = new Handler(Looper.getMainLooper());
-        mStatefulContainer = container;
+        mContainer = container;
         mBaseState = baseState;
         mState = mLastStableState = mCurrentStableState = baseState;
         mAtomicAnimationFactory = container.createAtomicAnimationFactory();
     }
 
-    public STATE_TYPE getState() {
+    public S getState() {
         return mState;
     }
 
-    public STATE_TYPE getTargetState() {
-        return (STATE_TYPE) mConfig.targetState;
+    public S getTargetState() {
+        return mConfig.targetState;
     }
 
-    public STATE_TYPE getCurrentStableState() {
+    public S getCurrentStableState() {
         return mCurrentStableState;
     }
 
@@ -115,20 +113,20 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         writer.println(prefix + "\tisInTransition:" + isInTransition());
     }
 
-    public StateHandler<STATE_TYPE>[] getStateHandlers() {
+    public StateHandler<S>[] getStateHandlers() {
         if (mStateHandlers == null) {
-            ArrayList<StateHandler<STATE_TYPE>> handlers = new ArrayList<>();
-            mStatefulContainer.collectStateHandlers(handlers);
+            ArrayList<StateHandler<S>> handlers = new ArrayList<>();
+            mContainer.collectStateHandlers(handlers);
             mStateHandlers = handlers.toArray(new StateHandler[handlers.size()]);
         }
         return mStateHandlers;
     }
 
-    public void addStateListener(StateListener listener) {
+    public void addStateListener(StateListener<S> listener) {
         mListeners.add(listener);
     }
 
-    public void removeStateListener(StateListener listener) {
+    public void removeStateListener(StateListener<S> listener) {
         mListeners.remove(listener);
     }
 
@@ -136,14 +134,14 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
      * Returns true if the state changes should be animated.
      */
     public boolean shouldAnimateStateChange() {
-        return mStatefulContainer.shouldAnimateStateChange();
+        return mContainer.shouldAnimateStateChange();
     }
 
     /**
      * @return {@code true} if the state matches the current state and there is no active
      *         transition to different state.
      */
-    public boolean isInStableState(STATE_TYPE state) {
+    public boolean isInStableState(S state) {
         return mState == state && mCurrentStableState == state
                 && (mConfig.targetState == null || mConfig.targetState == state);
     }
@@ -156,23 +154,23 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
     }
 
     /**
-     * @see #goToState(STATE_TYPE, boolean, AnimatorListener)
+     * @see #goToState(S, boolean, AnimatorListener)
      */
-    public void goToState(STATE_TYPE state) {
+    public void goToState(S state) {
         goToState(state, shouldAnimateStateChange());
     }
 
     /**
-     * @see #goToState(STATE_TYPE, boolean, AnimatorListener)
+     * @see #goToState(S, boolean, AnimatorListener)
      */
-    public void goToState(STATE_TYPE state, AnimatorListener listener) {
+    public void goToState(S state, AnimatorListener listener) {
         goToState(state, shouldAnimateStateChange(), listener);
     }
 
     /**
-     * @see #goToState(STATE_TYPE, boolean, AnimatorListener)
+     * @see #goToState(S, boolean, AnimatorListener)
      */
-    public void goToState(STATE_TYPE state, boolean animated) {
+    public void goToState(S state, boolean animated) {
         goToState(state, animated, 0, null);
     }
 
@@ -183,21 +181,21 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
      *                true otherwise
      * @param listener any action to perform at the end of the transition, or null.
      */
-    public void goToState(STATE_TYPE state, boolean animated, AnimatorListener listener) {
+    public void goToState(S state, boolean animated, AnimatorListener listener) {
         goToState(state, animated, 0, listener);
     }
 
     /**
      * Changes the Launcher state to the provided state after the given delay.
      */
-    public void goToState(STATE_TYPE state, long delay, AnimatorListener listener) {
+    public void goToState(S state, long delay, AnimatorListener listener) {
         goToState(state, true, delay, listener);
     }
 
     /**
      * Changes the Launcher state to the provided state after the given delay.
      */
-    public void goToState(STATE_TYPE state, long delay) {
+    public void goToState(S state, long delay) {
         goToState(state, true, delay, null);
     }
 
@@ -219,7 +217,7 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
             cancelAnimation();
         }
         if (mConfig.currentAnimation == null) {
-            for (StateHandler handler : getStateHandlers()) {
+            for (StateHandler<S> handler : getStateHandlers()) {
                 handler.setState(mState);
             }
             if (wasInAnimation) {
@@ -230,21 +228,21 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
 
     /** Handles backProgress in predictive back gesture by passing it to state handlers. */
     public void onBackProgressed(
-            STATE_TYPE toState, @FloatRange(from = 0.0, to = 1.0) float backProgress) {
-        for (StateHandler handler : getStateHandlers()) {
+            S toState, @FloatRange(from = 0.0, to = 1.0) float backProgress) {
+        for (StateHandler<S> handler : getStateHandlers()) {
             handler.onBackProgressed(toState, backProgress);
         }
     }
 
     /** Handles back cancelled event in predictive back gesture by passing it to state handlers. */
-    public void onBackCancelled(STATE_TYPE toState) {
-        for (StateHandler handler : getStateHandlers()) {
+    public void onBackCancelled(S toState) {
+        for (StateHandler<S> handler : getStateHandlers()) {
             handler.onBackCancelled(toState);
         }
     }
 
     private void goToState(
-            STATE_TYPE state, boolean animated, long delay, AnimatorListener listener) {
+            S state, boolean animated, long delay, AnimatorListener listener) {
         if (enableStateManagerProtoLog()) {
             StateManagerProtoLogProxy.logGoToState(
                     mState, state, getTrimmedStackTrace("StateManager.goToState"));
@@ -254,7 +252,7 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         }
 
         animated &= areAnimatorsEnabled();
-        if (mStatefulContainer.isInState(state)) {
+        if (getState() == state) {
             if (mConfig.currentAnimation == null) {
                 // Run any queued runnable
                 if (listener != null) {
@@ -273,13 +271,13 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         }
 
         // Cancel the current animation. This will reset mState to mCurrentStableState, so store it.
-        STATE_TYPE fromState = mState;
+        S fromState = mState;
         cancelAnimation();
 
         if (!animated) {
             mAtomicAnimationFactory.cancelAllStateElementAnimation();
             onStateTransitionStart(state);
-            for (StateHandler handler : getStateHandlers()) {
+            for (StateHandler<S> handler : getStateHandlers()) {
                 handler.setState(state);
             }
 
@@ -306,13 +304,13 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         }
     }
 
-    private void goToStateAnimated(STATE_TYPE state, STATE_TYPE fromState,
+    private void goToStateAnimated(S state, S fromState,
             AnimatorListener listener) {
         // Since state mBaseState can be reached from multiple states, just assume that the
         // transition plays in reverse and use the same duration as previous state.
         mConfig.duration = state == mBaseState
-                ? fromState.getTransitionDuration(mStatefulContainer, false /* isToState */)
-                : state.getTransitionDuration(mStatefulContainer, true /* isToState */);
+                ? fromState.getTransitionDuration(mContainer, false /* isToState */)
+                : state.getTransitionDuration(mContainer, true /* isToState */);
         prepareForAtomicAnimation(fromState, state, mConfig);
         AnimatorSet animation = createAnimationToNewWorkspaceInternal(state).buildAnim();
         if (listener != null) {
@@ -326,7 +324,7 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
      * - Setting interpolators for various animations included in the state transition.
      * - Setting some start values (e.g. scale) for views that are hidden but about to be shown.
      */
-    public void prepareForAtomicAnimation(STATE_TYPE fromState, STATE_TYPE toState,
+    public void prepareForAtomicAnimation(S fromState, S toState,
             StateAnimationConfig config) {
         mAtomicAnimationFactory.prepareForAtomicAnimation(fromState, toState, config);
     }
@@ -335,7 +333,7 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
      * Creates an animation representing atomic transitions between the provided states
      */
     public AnimatorSet createAtomicAnimation(
-            STATE_TYPE fromState, STATE_TYPE toState, StateAnimationConfig config) {
+            S fromState, S toState, StateAnimationConfig config) {
         if (enableStateManagerProtoLog()) {
             StateManagerProtoLogProxy.logCreateAtomicAnimation(
                     mState, toState, getTrimmedStackTrace("StateManager.createAtomicAnimation"));
@@ -348,7 +346,7 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         PendingAnimation builder = new PendingAnimation(config.duration);
         prepareForAtomicAnimation(fromState, toState, config);
 
-        for (StateHandler handler : mStatefulContainer.getStateManager().getStateHandlers()) {
+        for (StateHandler<S> handler : getStateHandlers()) {
             handler.setStateWithAnimation(toState, config, builder);
         }
         return builder.buildAnim();
@@ -362,19 +360,19 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
      *                accuracy.
      */
     public AnimatorPlaybackController createAnimationToNewWorkspace(
-            STATE_TYPE state, long duration) {
+            S state, long duration) {
         return createAnimationToNewWorkspace(state, duration, 0 /* animFlags */);
     }
 
     public AnimatorPlaybackController createAnimationToNewWorkspace(
-            STATE_TYPE state, long duration, @AnimationFlags int animFlags) {
+            S state, long duration, @AnimationFlags int animFlags) {
         StateAnimationConfig config = new StateAnimationConfig();
         config.duration = duration;
         config.animFlags = animFlags;
         return createAnimationToNewWorkspace(state, config);
     }
 
-    public AnimatorPlaybackController createAnimationToNewWorkspace(STATE_TYPE state,
+    public AnimatorPlaybackController createAnimationToNewWorkspace(S state,
             StateAnimationConfig config) {
         config.animProps |= StateAnimationConfig.USER_CONTROLLED;
         cancelAnimation();
@@ -384,10 +382,10 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         return mConfig.playbackController;
     }
 
-    private PendingAnimation createAnimationToNewWorkspaceInternal(final STATE_TYPE state) {
+    private PendingAnimation createAnimationToNewWorkspaceInternal(final S state) {
         PendingAnimation builder = new PendingAnimation(mConfig.duration);
         if (!mConfig.hasAnimationFlag(SKIP_ALL_ANIMATIONS)) {
-            for (StateHandler handler : getStateHandlers()) {
+            for (StateHandler<S> handler : getStateHandlers()) {
                 handler.setStateWithAnimation(state, mConfig, builder);
             }
         }
@@ -396,7 +394,7 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         return builder;
     }
 
-    private AnimatorListener createStateAnimationListener(STATE_TYPE state) {
+    private AnimatorListener createStateAnimationListener(S state) {
         return new AnimationSuccessListener() {
 
             @Override
@@ -412,9 +410,9 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         };
     }
 
-    private void onStateTransitionStart(STATE_TYPE state) {
+    private void onStateTransitionStart(S state) {
         mState = state;
-        mStatefulContainer.onStateSetStart(mState);
+        mContainer.onStateSetStart(mState);
 
         if (enableStateManagerProtoLog()) {
             StateManagerProtoLogProxy.logOnStateTransitionStart(state);
@@ -426,14 +424,14 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         }
     }
 
-    private void onStateTransitionEnd(STATE_TYPE state) {
+    private void onStateTransitionEnd(S state) {
         // Only change the stable states after the transitions have finished
         if (state != mCurrentStableState) {
             mLastStableState = state.getHistoryForState(mCurrentStableState);
             mCurrentStableState = state;
         }
 
-        mStatefulContainer.onStateSetEnd(state);
+        mContainer.onStateSetEnd(state);
         if (state == mBaseState) {
             setRestState(null);
         }
@@ -448,7 +446,7 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         }
     }
 
-    public STATE_TYPE getLastState() {
+    public S getLastState() {
         return mLastStableState;
     }
 
@@ -468,11 +466,11 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
         }
     }
 
-    public STATE_TYPE getRestState() {
+    public S getRestState() {
         return mRestState == null ? mBaseState : mRestState;
     }
 
-    public void setRestState(STATE_TYPE restState) {
+    public void setRestState(S restState) {
         mRestState = restState;
     }
 
@@ -518,7 +516,7 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
      * @param anim The custom animation to the given state.
      * @param toState The state we are animating towards.
      */
-    public void setCurrentAnimation(AnimatorSet anim, STATE_TYPE toState) {
+    public void setCurrentAnimation(AnimatorSet anim, S toState) {
         cancelAnimation();
         setCurrentAnimation(anim);
         anim.addListener(createStateAnimationListener(toState));
@@ -691,10 +689,10 @@ public class StateManager<STATE_TYPE extends BaseState<STATE_TYPE>,
 
         /** Handles backProgress in predictive back gesture for target state. */
         default void onBackProgressed(
-                STATE_TYPE toState, @FloatRange(from = 0.0, to = 1.0) float backProgress) {};
+                STATE_TYPE toState, @FloatRange(from = 0.0, to = 1.0) float backProgress) {}
 
         /** Handles back cancelled event in predictive back gesture for target state.  */
-        default void onBackCancelled(STATE_TYPE toState) {};
+        default void onBackCancelled(STATE_TYPE toState) {}
     }
 
     public interface StateListener<STATE_TYPE> {
diff --git a/src/com/android/launcher3/statemanager/StatefulActivity.java b/src/com/android/launcher3/statemanager/StatefulActivity.java
index 15190f6a18..445701d19d 100644
--- a/src/com/android/launcher3/statemanager/StatefulActivity.java
+++ b/src/com/android/launcher3/statemanager/StatefulActivity.java
@@ -20,7 +20,6 @@ import static android.content.pm.ActivityInfo.CONFIG_SCREEN_SIZE;
 
 import static com.android.launcher3.LauncherState.FLAG_NON_INTERACTIVE;
 
-import android.content.Context;
 import android.content.res.Configuration;
 import android.os.Bundle;
 import android.os.Handler;
@@ -199,11 +198,6 @@ public abstract class StatefulActivity<STATE_TYPE extends BaseState<STATE_TYPE>>
         mOldRotation = rotation;
     }
 
-    @Override
-    public Context getContext() {
-        return this;
-    }
-
     /**
      * Logic for when device configuration changes (rotation, screen size change, multi-window,
      * etc.)
diff --git a/src/com/android/launcher3/statemanager/StatefulContainer.java b/src/com/android/launcher3/statemanager/StatefulContainer.java
index b10af0a415..83a2fdcac5 100644
--- a/src/com/android/launcher3/statemanager/StatefulContainer.java
+++ b/src/com/android/launcher3/statemanager/StatefulContainer.java
@@ -20,8 +20,6 @@ package com.android.launcher3.statemanager;
 import static com.android.launcher3.LauncherState.FLAG_CLOSE_POPUPS;
 import static com.android.launcher3.statemanager.BaseState.FLAG_NON_INTERACTIVE;
 
-import android.content.Context;
-import android.content.ContextWrapper;
 import android.content.res.Configuration;
 
 import androidx.annotation.CallSuper;
@@ -40,23 +38,6 @@ public interface StatefulContainer<STATE_TYPE extends BaseState<STATE_TYPE>> ext
         ActivityContext {
 
     /**
-     * Returns an instance of an implementation of StatefulContainer
-     *
-     * @param context will find instance of StatefulContainer from given context.
-     */
-    static <T extends StatefulContainer> T fromContext(Context context) {
-        if (context instanceof StatefulContainer) {
-            return (T) context;
-        } else if (context instanceof ContextWrapper) {
-            return fromContext(((ContextWrapper) context).getBaseContext());
-        } else {
-            throw new IllegalArgumentException("Cannot find StatefulContainer in parent tree");
-        }
-    }
-
-    Context getContext();
-
-    /**
      * Creates a factory for atomic state animations
      */
     default StateManager.AtomicAnimationFactory<STATE_TYPE> createAtomicAnimationFactory() {
diff --git a/src/com/android/launcher3/states/EditModeState.kt b/src/com/android/launcher3/states/EditModeState.kt
index 6ff47aef43..268a37301d 100644
--- a/src/com/android/launcher3/states/EditModeState.kt
+++ b/src/com/android/launcher3/states/EditModeState.kt
@@ -36,11 +36,7 @@ class EditModeState(id: Int) : LauncherState(id, StatsLogManager.LAUNCHER_STATE_
                 FLAG_WORKSPACE_HAS_BACKGROUNDS)
     }
 
-    override fun <T> getTransitionDuration(context: T, isToState: Boolean): Int where
-    T : Context?,
-    T : ActivityContext? {
-        return 150
-    }
+    override fun getTransitionDuration(context: ActivityContext, isToState: Boolean) = 150
 
     override fun <T> getDepthUnchecked(context: T): Float where T : Context?, T : ActivityContext? {
         if (enableScalingRevealHomeAnimation()) {
diff --git a/src/com/android/launcher3/states/HintState.java b/src/com/android/launcher3/states/HintState.java
index bf2fb30841..ed22d39983 100644
--- a/src/com/android/launcher3/states/HintState.java
+++ b/src/com/android/launcher3/states/HintState.java
@@ -26,6 +26,7 @@ import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
 import com.android.launcher3.util.Themes;
+import com.android.launcher3.views.ActivityContext;
 
 /**
  * Scale down workspace/hotseat to hint at going to either overview (on pause) or first home screen.
@@ -46,7 +47,7 @@ public class HintState extends LauncherState {
     }
 
     @Override
-    public int getTransitionDuration(Context context, boolean isToState) {
+    public int getTransitionDuration(ActivityContext context, boolean isToState) {
         return 80;
     }
 
diff --git a/src/com/android/launcher3/states/SpringLoadedState.java b/src/com/android/launcher3/states/SpringLoadedState.java
index 2e57ed86ab..15e6c6190c 100644
--- a/src/com/android/launcher3/states/SpringLoadedState.java
+++ b/src/com/android/launcher3/states/SpringLoadedState.java
@@ -24,6 +24,7 @@ import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.Workspace;
+import com.android.launcher3.views.ActivityContext;
 
 /**
  * Definition for spring loaded state used during drag and drop.
@@ -41,7 +42,7 @@ public class SpringLoadedState extends LauncherState {
     }
 
     @Override
-    public int getTransitionDuration(Context context, boolean isToState) {
+    public int getTransitionDuration(ActivityContext context, boolean isToState) {
         return 150;
     }
 
diff --git a/src/com/android/launcher3/views/ActivityContext.java b/src/com/android/launcher3/views/ActivityContext.java
index c9acca7014..81968fce58 100644
--- a/src/com/android/launcher3/views/ActivityContext.java
+++ b/src/com/android/launcher3/views/ActivityContext.java
@@ -528,6 +528,11 @@ public interface ActivityContext {
         return false;
     }
 
+    /** Returns the current ActivityContext as context */
+    default Context asContext() {
+        return (Context) this;
+    }
+
     /**
      * Returns the ActivityContext associated with the given Context, or throws an exception if
      * the Context is not associated with any ActivityContext.
diff --git a/src_no_quickstep/com/android/launcher3/uioverrides/states/AllAppsState.java b/src_no_quickstep/com/android/launcher3/uioverrides/states/AllAppsState.java
index 9865516c4c..03a553534f 100644
--- a/src_no_quickstep/com/android/launcher3/uioverrides/states/AllAppsState.java
+++ b/src_no_quickstep/com/android/launcher3/uioverrides/states/AllAppsState.java
@@ -18,8 +18,6 @@ package com.android.launcher3.uioverrides.states;
 import static com.android.app.animation.Interpolators.DECELERATE;
 import static com.android.launcher3.logging.StatsLogManager.LAUNCHER_STATE_ALLAPPS;
 
-import android.content.Context;
-
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
@@ -31,8 +29,6 @@ import com.android.launcher3.views.ActivityContext;
  */
 public class AllAppsState extends LauncherState {
 
-    private static final float PARALLAX_COEFFICIENT = .125f;
-
     private static final int STATE_FLAGS = FLAG_WORKSPACE_INACCESSIBLE;
 
     public AllAppsState(int id) {
@@ -40,8 +36,7 @@ public class AllAppsState extends LauncherState {
     }
 
     @Override
-    public <DEVICE_PROFILE_CONTEXT extends Context & ActivityContext>
-    int getTransitionDuration(DEVICE_PROFILE_CONTEXT context, boolean isToState) {
+    public int getTransitionDuration(ActivityContext context, boolean isToState) {
         return isToState
                 ? context.getDeviceProfile().allAppsOpenDuration
                 : context.getDeviceProfile().allAppsCloseDuration;
diff --git a/src_no_quickstep/com/android/launcher3/uioverrides/states/OverviewState.java b/src_no_quickstep/com/android/launcher3/uioverrides/states/OverviewState.java
index 7a228c42b8..532a338237 100644
--- a/src_no_quickstep/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/src_no_quickstep/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -17,12 +17,11 @@ package com.android.launcher3.uioverrides.states;
 
 import static com.android.launcher3.logging.StatsLogManager.LAUNCHER_STATE_OVERVIEW;
 
-import android.content.Context;
-
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
 import com.android.launcher3.util.Themes;
+import com.android.launcher3.views.ActivityContext;
 
 /**
  * Definition for overview state
@@ -34,7 +33,7 @@ public class OverviewState extends LauncherState {
     }
 
     @Override
-    public int getTransitionDuration(Context context, boolean isToState) {
+    public int getTransitionDuration(ActivityContext context, boolean isToState) {
         return 250;
     }