Adding SDL_HINT_IME_PAN_PADDING "SDL_IME_PAN_PADDING".

android-project/app/src/main/java/org/libsdl/app/SDLActivity.java

@@ -1388,30 +1388,45 @@ static class ShowTextInputTask implements Runnable {
          * the bottom edge of the input region and the top edge of an input
          * method (soft keyboard)
          */
-        static final int HEIGHT_PADDING = 15;
+        static int getPanPadding() {
+            /* The hint is in window coordinates. Convert to pixels by
+             * multiplying by density. */
+            int defaultPadding = 10;
+            try {
+                String hint = nativeGetHint("SDL_IME_PAN_PADDING");
+                if (hint != null) {
+                    defaultPadding = Integer.parseInt(hint);
+                }
+            } catch (NumberFormatException ignored) {
+            }
+            float density = getContext().getResources().getDisplayMetrics().density;
+            return (int)(defaultPadding * density);
+        }
 
         public int input_type;
         public int x, y, w, h;
+        private final int panPadding;
 
         public ShowTextInputTask(int input_type, int x, int y, int w, int h) {
             this.input_type = input_type;
             this.x = x;
             this.y = y;
             this.w = w;
             this.h = h;
+            this.panPadding = getPanPadding();
 
             /* Minimum size of 1 pixel, so it takes focus. */
             if (this.w <= 0) {
                 this.w = 1;
             }
-            if (this.h + HEIGHT_PADDING <= 0) {
-                this.h = 1 - HEIGHT_PADDING;
+            if (this.h + panPadding <= 0) {
+                this.h = 1 - panPadding;
             }
         }
 
         @Override
         public void run() {
-            RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(w, h + HEIGHT_PADDING);
+            RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(w, h + panPadding);
             params.leftMargin = x;
             params.topMargin = y;
 

include/SDL3/SDL_hints.h

@@ -1219,6 +1219,25 @@ extern "C" {
  */
 #define SDL_HINT_IME_IMPLEMENTED_UI "SDL_IME_IMPLEMENTED_UI"
 
+/**
+ * A variable controlling the padding in pixels added above the on-screen
+ * keyboard to keep the text input area visible.
+ *
+ * This padding is used on platforms with on-screen keyboards (iOS, Android)
+ * to ensure there is extra breathing room between the text input area and
+ * the top of the keyboard when panning the view.
+ *
+ * The variable can be set to a number representing the padding in window
+ * coordinates.
+ * 
+ * The default value is "10".
+ *
+ * This hint can be set anytime.
+ *
+ * \since This hint is available since SDL 3.6.0.
+ */
+#define SDL_HINT_IME_PAN_PADDING "SDL_IME_PAN_PADDING"
+
 /**
  * A variable controlling whether the home indicator bar on iPhone X and later
  * should be hidden.

src/video/uikit/SDL_uikitviewcontroller.m

@@ -642,7 +642,10 @@ - (void)updateKeyboard
 #endif
 
     if (self.keyboardHeight && self.textInputRect.h) {
-        int rectbottom = (int)(self.textInputRect.y + self.textInputRect.h);
+        /// Get the pan padding from the hint (in window coordinates).
+        const char *hint = SDL_GetHint(SDL_HINT_IME_PAN_PADDING);
+        int padding = (hint && *hint) ? SDL_atoi(hint) : 10;
+        int rectbottom = (int)(self.textInputRect.y + self.textInputRect.h + padding);
         int keybottom = (int)(self.view.bounds.size.height - self.keyboardHeight);
         if (keybottom < rectbottom) {
             offset.y = keybottom - rectbottom;