Matching the app layout style for in-app fullscreen dialogs

Author: franco-zalamena-iterable

iterableapi/src/main/java/com/iterable/iterableapi/IterableInAppFragmentHTMLNotification.java

@@ -2,10 +2,8 @@
 
 import android.app.Activity;
 import android.app.Dialog;
-import android.content.Context;
 import android.content.DialogInterface;
 import android.graphics.Color;
-import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
@@ -16,8 +14,6 @@
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
-import android.util.DisplayMetrics;
-import android.view.Display;
 import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.OrientationEventListener;
@@ -35,6 +31,7 @@
 import androidx.core.graphics.ColorUtils;
 import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
+import androidx.core.view.WindowCompat;
 import androidx.core.view.WindowInsetsCompat;
 import androidx.fragment.app.DialogFragment;
 
@@ -78,6 +75,7 @@ public class IterableInAppFragmentHTMLNotification extends DialogFragment implem
     private boolean shouldAnimate;
     private double inAppBackgroundAlpha;
     private String inAppBackgroundColor;
+    private boolean hostIsEdgeToEdge;
 
     public static IterableInAppFragmentHTMLNotification createInstance(@NonNull String htmlString, boolean callbackOnCancel, @NonNull IterableHelper.IterableUrlCallback clickCallback, @NonNull IterableInAppLocation location, @NonNull String messageId, @NonNull Double backgroundAlpha, @NonNull Rect padding) {
         return IterableInAppFragmentHTMLNotification.createInstance(htmlString, callbackOnCancel, clickCallback, location, messageId, backgroundAlpha, padding, false, new IterableInAppMessage.InAppBgColor(null, 0.0f));
@@ -176,11 +174,8 @@ public void onCancel(DialogInterface dialog) {
             applyWindowGravity(dialog.getWindow(), "onCreateDialog");
         }
 
-        if (getInAppLayout(insetPadding) != InAppLayout.FULLSCREEN && getInAppLayout(insetPadding) != InAppLayout.TOP) {
-            // For TOP layout in-app, status bar will be opaque so that the in-app content does not overlap with translucent status bar.
-            // For other non-fullscreen in-apps layouts (BOTTOM and CENTER), status bar will be translucent
-            dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
-        }
+        hostIsEdgeToEdge = isHostActivityEdgeToEdge();
+        configureSystemBarBehavior(dialog.getWindow());
         return dialog;
     }
 
@@ -289,9 +284,7 @@ public void run() {
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
-        // Handle edge-to-edge insets with modern approach (only for non-fullscreen)
-        // Full screen in-apps should not have padding from system bars
-        if (getInAppLayout(insetPadding) != InAppLayout.FULLSCREEN) {
+        if (getInAppLayout(insetPadding) != InAppLayout.FULLSCREEN && hostIsEdgeToEdge) {
             ViewCompat.setOnApplyWindowInsetsListener(view, (v, insets) -> {
                 Insets sysBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
                 v.setPadding(0, sysBars.top, 0, sysBars.bottom);
@@ -594,29 +587,11 @@ public void run() {
                         return;
                     }
 
-                    DisplayMetrics displayMetrics = activity.getResources().getDisplayMetrics();
                     Window window = notification.getDialog().getWindow();
                     Rect insetPadding = notification.insetPadding;
 
-                    WindowManager wm = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE);
-                    Display display = wm.getDefaultDisplay();
-                    Point size = new Point();
-
-                    // Get the correct screen size based on api level
-                    // https://stackoverflow.com/questions/35780980/getting-the-actual-screen-height-android
-                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-                        display.getRealSize(size);
-                    } else {
-                        display.getSize(size);
-                    }
-
-                    int webViewWidth = size.x;
-                    int webViewHeight = size.y;
-
-                    //Check if the dialog is full screen
                     if (insetPadding.bottom == 0 && insetPadding.top == 0) {
-                        //Handle full screen
-                        window.setLayout(webViewWidth, webViewHeight);
+                        window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
                     } else {
                         // Resize the WebView directly with explicit size
                         float relativeHeight = height * getResources().getDisplayMetrics().density;
@@ -703,6 +678,56 @@ static int roundToNearest90Degrees(int orientation) {
         }
     }
 
+    private void configureSystemBarBehavior(Window window) {
+        if (window == null) return;
+        Activity activity = getActivity();
+        if (activity == null || activity.getWindow() == null) return;
+
+        if (hostIsEdgeToEdge) {
+            WindowCompat.setDecorFitsSystemWindows(window, false);
+            window.setStatusBarColor(Color.TRANSPARENT);
+            window.setNavigationBarColor(Color.TRANSPARENT);
+        } else {
+            window.setStatusBarColor(activity.getWindow().getStatusBarColor());
+            window.setNavigationBarColor(activity.getWindow().getNavigationBarColor());
+        }
+    }
+
+    private boolean isHostActivityEdgeToEdge() {
+        Activity activity = getActivity();
+        if (activity == null || activity.getWindow() == null) return false;
+
+        if (hasEdgeToEdgeLegacyFlags(activity)) {
+            return true;
+        }
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            return isContentDrawnBehindSystemBars(activity);
+        }
+
+        return false;
+    }
+
+    private boolean hasEdgeToEdgeLegacyFlags(Activity activity) {
+        int flags = activity.getWindow().getDecorView().getSystemUiVisibility();
+        return (flags & View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN) != 0;
+    }
+
+    private boolean isContentDrawnBehindSystemBars(Activity activity) {
+        View contentView = activity.findViewById(android.R.id.content);
+        if (contentView == null) return false;
+
+        int contentTop = getViewTopPositionInWindow(contentView);
+        boolean statusBarPushesContentDown = contentTop > 0;
+        return !statusBarPushesContentDown;
+    }
+
+    private int getViewTopPositionInWindow(View view) {
+        int[] position = new int[2];
+        view.getLocationInWindow(position);
+        return position[1];
+    }
+
     /**
      * Sets the window gravity based on inset padding
      *