Implement OS.get_window_safe_area() for Android

platform/android/java/app/res/values/themes.xml

@@ -5,5 +5,6 @@
 
  <style name="GodotAppSplashTheme" parent="@style/GodotAppMainTheme">
  <item name="android:windowBackground">@drawable/splash_drawable</item>
+ <item name="android:windowLayoutInDisplayCutoutMode">shortEdges</item>
  </style>
 </resources>

platform/android/java/lib/src/org/godotengine/godot/GodotIO.java

@@ -37,12 +37,16 @@
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
 import android.content.res.AssetManager;
+import android.graphics.Point;
 import android.media.*;
 import android.net.Uri;
 import android.os.*;
 import android.util.DisplayMetrics;
 import android.util.Log;
 import android.util.SparseArray;
+import android.view.Display;
+import android.view.DisplayCutout;
+import android.view.WindowInsets;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -494,6 +498,28 @@ public int getScreenDPI() {
  return (int)(metrics.density * 160f);
  }
 
+ public int[] getWindowSafeArea() {
+ DisplayMetrics metrics = activity.getResources().getDisplayMetrics();
+ Display display = activity.getWindowManager().getDefaultDisplay();
+ Point size = new Point();
+ display.getRealSize(size);
+
+ int result[] = { 0, 0, size.x, size.y };
+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+ WindowInsets insets = activity.getWindow().getDecorView().getRootWindowInsets();
+ DisplayCutout cutout = insets.getDisplayCutout();
+ if (cutout != null) {
+ int insetLeft = cutout.getSafeInsetLeft();
+ int insetTop = cutout.getSafeInsetTop();
+ result[0] = insetLeft;
+ result[1] = insetTop;
+ result[2] -= insetLeft + cutout.getSafeInsetRight();
+ result[3] -= insetTop + cutout.getSafeInsetBottom();
+ }
+ }
+ return result;
+ }
+
  public void showKeyboard(String p_existing_text, boolean p_multiline, int p_max_input_length, int p_cursor_start, int p_cursor_end) {
  if (edit != null)
  edit.showKeyboard(p_existing_text, p_multiline, p_max_input_length, p_cursor_start, p_cursor_end);

platform/android/java_godot_io_wrapper.cpp

@@ -52,6 +52,7 @@ GodotIOJavaWrapper::GodotIOJavaWrapper(JNIEnv *p_env, jobject p_godot_io_instanc
  _get_locale = p_env->GetMethodID(cls, "getLocale", "()Ljava/lang/String;");
  _get_model = p_env->GetMethodID(cls, "getModel", "()Ljava/lang/String;");
  _get_screen_DPI = p_env->GetMethodID(cls, "getScreenDPI", "()I");
+ _get_window_safe_area = p_env->GetMethodID(cls, "getWindowSafeArea", "()[I"),
  _get_unique_id = p_env->GetMethodID(cls, "getUniqueID", "()Ljava/lang/String;");
  _show_keyboard = p_env->GetMethodID(cls, "showKeyboard", "(Ljava/lang/String;ZIII)V");
  _hide_keyboard = p_env->GetMethodID(cls, "hideKeyboard", "()V");
@@ -121,6 +122,19 @@ int GodotIOJavaWrapper::get_screen_dpi() {
  }
 }
 
+void GodotIOJavaWrapper::get_window_safe_area(int (&p_rect_xywh)[4]) {
+ if (_get_window_safe_area) {
+ JNIEnv *env = ThreadAndroid::get_env();
+ jintArray returnArray = (jintArray)env->CallObjectMethod(godot_io_instance, _get_window_safe_area);
+ ERR_FAIL_COND(env->GetArrayLength(returnArray) != 4);
+ jint *arrayBody = env->GetIntArrayElements(returnArray, JNI_FALSE);
+ for (int i = 0; i < 4; i++) {
+ p_rect_xywh[i] = arrayBody[i];
+ }
+ env->ReleaseIntArrayElements(returnArray, arrayBody, 0);
+ }
+}
+
 String GodotIOJavaWrapper::get_unique_id() {
  if (_get_unique_id) {
  JNIEnv *env = ThreadAndroid::get_env();

platform/android/java_godot_io_wrapper.h

@@ -50,6 +50,7 @@ class GodotIOJavaWrapper {
  jmethodID _get_locale = 0;
  jmethodID _get_model = 0;
  jmethodID _get_screen_DPI = 0;
+ jmethodID _get_window_safe_area = 0;
  jmethodID _get_unique_id = 0;
  jmethodID _show_keyboard = 0;
  jmethodID _hide_keyboard = 0;
@@ -71,6 +72,7 @@ class GodotIOJavaWrapper {
  String get_locale();
  String get_model();
  int get_screen_dpi();
+ void get_window_safe_area(int (&p_rect_xywh)[4]);
  String get_unique_id();
  bool has_vk();
  void show_vk(const String &p_existing, bool p_multiline, int p_max_input_length, int p_cursor_start, int p_cursor_end);

platform/android/os_android.cpp

@@ -291,6 +291,12 @@ Size2 OS_Android::get_window_size() const {
  return Vector2(default_videomode.width, default_videomode.height);
 }
 
+Rect2 OS_Android::get_window_safe_area() const {
+ int xywh[4];
+ godot_io_java->get_window_safe_area(xywh);
+ return Rect2(xywh[0], xywh[1], xywh[2], xywh[3]);
+}
+
 String OS_Android::get_name() const {
 
  return "Android";

platform/android/os_android.h

@@ -142,6 +142,7 @@ class OS_Android : public OS_Unix {
  virtual void set_keep_screen_on(bool p_enabled);
 
  virtual Size2 get_window_size() const;
+ virtual Rect2 get_window_safe_area() const;
 
  virtual String get_name() const;
  virtual MainLoop *get_main_loop() const;