ViewUtils.runOnPreDraw

android/app/src/main/java/com/reactnativenavigation/utils/ViewUtils.java

@@ -0,0 +1,21 @@
+package com.reactnativenavigation.utils;
+
+import android.view.View;
+import android.view.ViewTreeObserver;
+
+public class ViewUtils {
+    public static void runOnPreDraw(final View view, final Runnable task) {
+        view.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
+            @Override
+            public boolean onPreDraw() {
+                if (!view.getViewTreeObserver().isAlive()) {
+                    return true;
+                }
+                view.getViewTreeObserver().removeOnPreDrawListener(this);
+                task.run();
+                return true;
+            }
+        });
+    }
+}
+