Fix crash a9 (#3836)

* Fix crash on Android 9 (#3808)

- Initial support for A9


Co-authored-by: John Andrew Camu <werdna.jac@gmail.com>
Co-authored-by: Rafael de Moura Dev <93414086+Rafael2616@users.noreply.github.com>

lawnchair/res/values-v28/colors.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="system_accent1_100">@android:color/transparent</color>
+    <color name="accent_primary_device_default">@android:color/transparent</color>
+</resources>

lawnchair/src/app/lawnchair/theme/color/ColorTokens.kt

@@ -39,6 +39,7 @@ object ColorTokens {
 
     val Accent3_50 = SwatchColorToken(Swatch.Accent3, Shade.S50)
     val Accent3_100 = SwatchColorToken(Swatch.Accent3, Shade.S100)
+    val Accent3_200 = SwatchColorToken(Swatch.Accent3, Shade.S200)
 
     val SurfaceLight = Neutral1_500.setLStar(98.0)
     val SurfaceDark = Neutral1_800
@@ -82,6 +83,8 @@ object ColorTokens {
 
     @JvmField val FolderDotColor = Accent3_100
 
+    @JvmField val DotColor = Accent3_200
+
     @JvmField val FolderBackgroundColor = DayNightColorToken(Neutral1_50.setLStar(98.0), Neutral2_50.setLStar(30.0))
 
     @JvmField val FolderIconBorderColor = ColorPrimary

lawnchair/src/app/lawnchair/util/LawnchairUtils.kt

@@ -43,6 +43,7 @@ import app.lawnchair.preferences.PreferenceManager
 import app.lawnchair.preferences2.PreferenceManager2
 import app.lawnchair.theme.color.ColorTokens
 import com.android.launcher3.R
+import com.android.launcher3.Utilities
 import com.android.launcher3.util.Executors.MAIN_EXECUTOR
 import com.android.launcher3.util.Themes
 import com.android.systemui.shared.system.QuickStepContract
@@ -114,17 +115,21 @@ fun getPrefsIfUnlocked(context: Context): PreferenceManager? {
 
 fun getWindowCornerRadius(context: Context): Float {
     val prefs = getPrefsIfUnlocked(context)
-    if (prefs != null && prefs.overrideWindowCornerRadius.get()) {
-        return prefs.windowCornerRadius.get().toFloat()
+    return when {
+        prefs?.overrideWindowCornerRadius?.get() == true -> prefs.windowCornerRadius.get().toFloat()
+        Utilities.ATLEAST_Q -> QuickStepContract.getWindowCornerRadius(context)
+        else -> 0.0f
     }
-    return QuickStepContract.getWindowCornerRadius(context)
 }
 
 fun supportsRoundedCornersOnWindows(context: Context): Boolean {
-    if (getPrefsIfUnlocked(context)?.overrideWindowCornerRadius?.get() == true) {
-        return true
+    val prefs = getPrefsIfUnlocked(context)
+
+    return when {
+        prefs?.overrideWindowCornerRadius?.get() == true -> true
+        Utilities.ATLEAST_Q -> QuickStepContract.supportsRoundedCornersOnWindows(context.resources)
+        else -> false
     }
-    return QuickStepContract.supportsRoundedCornersOnWindows(context.resources)
 }
 
 fun overrideAllAppsTextColor(textView: TextView) {

quickstep/src/com/android/launcher3/statehandlers/DepthController.java

@@ -32,6 +32,7 @@ import android.view.ViewTreeObserver;
 import com.android.launcher3.BaseActivity;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.states.StateAnimationConfig;
@@ -64,7 +65,9 @@ public class DepthController extends BaseDepthController implements StateHandler
     private void onLauncherDraw() {
         View view = mLauncher.getDragLayer();
         ViewRootImpl viewRootImpl = view.getViewRootImpl();
-        setSurface(viewRootImpl != null ? viewRootImpl.getSurfaceControl() : null);
+        if (Utilities.ATLEAST_Q) {
+            setSurface(viewRootImpl != null ? viewRootImpl.getSurfaceControl() : null);
+        }
         view.post(() -> view.getViewTreeObserver().removeOnDrawListener(mOnDrawListener));
     }
 

quickstep/src/com/android/quickstep/RecentsAnimationDeviceState.java

@@ -154,20 +154,22 @@ public class RecentsAnimationDeviceState implements DisplayInfoChangeListener {
         }
         runOnDestroy(() -> mUserUnlockedReceiver.unregisterReceiverSafely(mContext));
 
-        // Register for exclusion updates
-        mExclusionListener = new SystemGestureExclusionListenerCompat(mDisplayId) {
-            @Override
-            @BinderThread
-            public void onExclusionChanged(Region region) {
-                if (region == null) {
-                    // Don't think this is possible but just in case, don't let it be null.
-                    region = new Region();
+        if (Utilities.ATLEAST_Q) {
+            // Register for exclusion updates
+            mExclusionListener = new SystemGestureExclusionListenerCompat(mDisplayId) {
+                @Override
+                @BinderThread
+                public void onExclusionChanged(Region region) {
+                    if (region == null) {
+                        // Don't think this is possible but just in case, don't let it be null.
+                        region = new Region();
+                    }
+                    // Assignments are atomic, it should be safe on binder thread
+                    mExclusionRegion = region;
                 }
-                // Assignments are atomic, it should be safe on binder thread
-                mExclusionRegion = region;
-            }
-        };
-        runOnDestroy(mExclusionListener::unregister);
+            };
+            runOnDestroy(mExclusionListener::unregister);
+        }
 
         // Register for display changes changes
         mDisplayController.addChangeListener(this);
@@ -219,9 +221,11 @@ public class RecentsAnimationDeviceState implements DisplayInfoChangeListener {
                 mPipIsActive = false;
             }
         };
-        TaskStackChangeListeners.getInstance().registerTaskStackListener(mPipListener);
-        runOnDestroy(() ->
-                TaskStackChangeListeners.getInstance().unregisterTaskStackListener(mPipListener));
+        if (Utilities.ATLEAST_Q) {
+            TaskStackChangeListeners.getInstance().registerTaskStackListener(mPipListener);
+            runOnDestroy(() ->
+                    TaskStackChangeListeners.getInstance().unregisterTaskStackListener(mPipListener));
+        }
     }
 
     private void runOnDestroy(Runnable action) {
@@ -258,6 +262,8 @@ public class RecentsAnimationDeviceState implements DisplayInfoChangeListener {
             mMode = info.navigationMode;
             mNavBarPosition = new NavBarPosition(mMode, info);
 
+            if (mExclusionListener == null) return;
+
             if (mMode == NO_BUTTON) {
                 mExclusionListener.register();
             } else {

quickstep/src/com/android/quickstep/util/VibrationConstants.java

@@ -16,8 +16,9 @@
 package com.android.quickstep.util;
 
 import android.os.VibrationEffect;
+import com.android.launcher3.Utilities;
 
 public class VibrationConstants {
-    public static final VibrationEffect EFFECT_TEXTURE_TICK =
-            VibrationEffect.createPredefined(VibrationEffect.EFFECT_TEXTURE_TICK);
-}
+    public static final VibrationEffect EFFECT_TEXTURE_TICK = Utilities.ATLEAST_Q ?
+            VibrationEffect.createPredefined(VibrationEffect.EFFECT_TEXTURE_TICK) : VibrationEffect.createOneShot(50, VibrationEffect.DEFAULT_AMPLITUDE);
+}

src/com/android/launcher3/BubbleTextView.java

@@ -88,6 +88,7 @@ import java.util.Locale;
 
 import app.lawnchair.font.FontManager;
 import app.lawnchair.preferences.PreferenceManager;
+import app.lawnchair.theme.color.ColorTokens;
 import app.lawnchair.util.LawnchairUtilsKt;
 
 /**
@@ -392,8 +393,7 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
         boolean useTheme = shouldUseTheme();
         FastBitmapDrawable iconDrawable = info.newIcon(getContext(), useTheme);
         mDotParams.appColor = iconDrawable.getIconColor();
-        mDotParams.color = getContext().getResources()
-                .getColor(android.R.color.system_accent3_200, getContext().getTheme());
+        mDotParams.color = ColorTokens.DotColor.resolveColor(getContext());
         setIcon(iconDrawable);
         applyLabel(info);
     }

src/com/android/launcher3/Workspace.java

@@ -68,6 +68,7 @@ import android.widget.Toast;
 import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 
+import com.android.launcher3.Utilities;
 import com.android.launcher3.accessibility.AccessibleDragListenerAdapter;
 import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper;
 import com.android.launcher3.anim.Interpolators;
@@ -409,7 +410,9 @@ public class Workspace<T extends View & PageIndicator> extends PagedView<T>
         } else {
             lp.leftMargin = lp.rightMargin = 0;
             lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
-            boolean isDisabledHotseat = getHotseat() != null && getHotseat().getQsb().getSourceLayoutResId() == R.layout.empty_view;
+            boolean isDisabledHotseat = Utilities.ATLEAST_Q &&
+                    getHotseat() != null &&
+                    getHotseat().getQsb().getSourceLayoutResId() == R.layout.empty_view;
             lp.bottomMargin = (padding.bottom) + grid.hotseatBarBottomSpacePx - (isDisabledHotseat ? grid.workspaceCellPaddingXPx * 3 : 0);
         }
         mPageIndicator.setLayoutParams(lp);