Handle null root window insets

android/src/main/java/com/th3rdwave/safeareacontext/SafeAreaUtils.java

@@ -14,6 +14,8 @@ import com.facebook.react.uimanager.PixelUtil;
 
 import java.util.Map;
 
+import androidx.annotation.Nullable;
+
 /* package */ class SafeAreaUtils {
   static WritableMap edgeInsetsToJsMap(EdgeInsets insets) {
     WritableMap insetsMap = Arguments.createMap();
@@ -36,13 +38,16 @@ import java.util.Map;
         PixelUtil.toDIPFromPixel(insets.left));
   }
 
-  static EdgeInsets getSafeAreaInsets(WindowManager windowManager, View rootView) {
+  static @Nullable EdgeInsets getSafeAreaInsets(WindowManager windowManager, View rootView) {
     // Window insets are parts of the window that are covered by system views (status bar,
     // navigation bar, notches). There are no apis the get these values for android < M so we
     // do a best effort polyfill.
     EdgeInsets windowInsets;
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
       WindowInsets insets = rootView.getRootWindowInsets();
+      if (insets == null) {
+        return null;
+      }
       windowInsets = new EdgeInsets(
           insets.getSystemWindowInsetTop(),
           insets.getSystemWindowInsetRight(),

android/src/main/java/com/th3rdwave/safeareacontext/SafeAreaView.java

@@ -31,7 +31,7 @@ public class SafeAreaView extends ReactViewGroup implements ViewTreeObserver.OnG
 
   private void maybeUpdateInsets() {
     EdgeInsets edgeInsets = SafeAreaUtils.getSafeAreaInsets(mWindowManager, getRootView());
-    if (mLastInsets == null || !mLastInsets.equalsToEdgeInsets(edgeInsets)) {
+    if (edgeInsets != null && (mLastInsets == null || !mLastInsets.equalsToEdgeInsets(edgeInsets))) {
       Assertions.assertNotNull(mInsetsChangeListener).onInsetsChange(this, edgeInsets);
       mLastInsets = edgeInsets;
     }

android/src/main/java/com/th3rdwave/safeareacontext/SafeAreaViewManager.java

@@ -2,6 +2,7 @@ package com.th3rdwave.safeareacontext;
 
 import android.app.Activity;
 import android.content.Context;
+import android.view.View;
 import android.view.WindowManager;
 
 import com.facebook.react.bridge.ReactApplicationContext;
@@ -66,9 +67,18 @@ public class SafeAreaViewManager extends ViewGroupManager<SafeAreaView> {
       return null;
     }
 
-    EdgeInsets insets = SafeAreaUtils.getSafeAreaInsets(mWindowManager, activity.getWindow().getDecorView());
+    View decorView = activity.getWindow().getDecorView();
+    if (decorView == null) {
+      return null;
+    }
+
+    EdgeInsets insets = SafeAreaUtils.getSafeAreaInsets(mWindowManager, decorView);
+    if (insets == null) {
+      return null;
+    }
     return MapBuilder.<String, Object>of(
         "initialWindowSafeAreaInsets",
         SafeAreaUtils.edgeInsetsToJavaMap(insets));
+
   }
 }