diff --git a/doc/classes/OS.xml b/doc/classes/OS.xml
index 86d63cefd4..60e321971d 100644
--- a/doc/classes/OS.xml
+++ b/doc/classes/OS.xml
@@ -970,10 +970,10 @@
If [code]true[/code], the window is minimized.
- If [code]true[/code], the window background is transparent and window frame is removed.
+ If [code]true[/code], the window background is transparent and the window frame is removed.
Use [code]get_tree().get_root().set_transparent_background(true)[/code] to disable main viewport background rendering.
- [b]Note:[/b] This property has no effect if [b]Project > Project Settings > Display > Window > Per-pixel transparency > Allowed[/b] setting is disabled.
- [b]Note:[/b] This property is implemented on HTML5, Linux, macOS and Windows.
+ [b]Note:[/b] This property has no effect if [member ProjectSettings.display/window/per_pixel_transparency/allowed] setting is disabled.
+ [b]Note:[/b] This property is implemented on HTML5, Linux, macOS, Windows, and Android. It can't be changed at runtime for Android. Use [member ProjectSettings.display/window/per_pixel_transparency/enabled] to set it at startup instead.
The window position relative to the screen, the origin is the top left corner, +Y axis goes to the bottom and +X axis goes to the right.
diff --git a/doc/classes/ProjectSettings.xml b/doc/classes/ProjectSettings.xml
index 68fdc51553..ff0f8782ef 100644
--- a/doc/classes/ProjectSettings.xml
+++ b/doc/classes/ProjectSettings.xml
@@ -450,10 +450,14 @@
If [code]true[/code], the home indicator is hidden automatically. This only affects iOS devices without a physical home button.
- If [code]true[/code], allows per-pixel transparency in a desktop window. This affects performance, so leave it on [code]false[/code] unless you need it.
+ If [code]true[/code], allows per-pixel transparency for the window background. This affects performance, so leave it on [code]false[/code] unless you need it.
+ See [member OS.window_per_pixel_transparency_enabled] for more details.
+ [b]Note:[/b] This feature is implemented on HTML5, Linux, macOS, Windows, and Android.
Sets the window background to transparent when it starts.
+ See [member OS.window_per_pixel_transparency_enabled] for more details.
+ [b]Note:[/b] This feature is implemented on HTML5, Linux, macOS, Windows, and Android.
Forces the main window to be always on top.
diff --git a/platform/android/export/export_plugin.cpp b/platform/android/export/export_plugin.cpp
index e73c274b09..4c5205ea54 100644
--- a/platform/android/export/export_plugin.cpp
+++ b/platform/android/export/export_plugin.cpp
@@ -2552,6 +2552,11 @@ void EditorExportPlatformAndroid::get_command_line_flags(const Refget("display/window/per_pixel_transparency/enabled");
+ if (translucent) {
+ command_line_strings.push_back("--translucent");
+ }
+
if (command_line_strings.size()) {
r_command_line_flags.resize(4);
encode_uint32(command_line_strings.size(), &r_command_line_flags.write[0]);
diff --git a/platform/android/java/lib/src/org/godotengine/godot/Godot.java b/platform/android/java/lib/src/org/godotengine/godot/Godot.java
index ab10d46fbb..93f9db4d33 100644
--- a/platform/android/java/lib/src/org/godotengine/godot/Godot.java
+++ b/platform/android/java/lib/src/org/godotengine/godot/Godot.java
@@ -130,6 +130,7 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
private boolean use_32_bits = false;
private boolean use_immersive = false;
private boolean use_debug_opengl = false;
+ private boolean translucent = false;
private boolean mStatePaused;
private boolean activityResumed;
private int mState;
@@ -357,7 +358,7 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
// ...add to FrameLayout
containerLayout.addView(edittext);
- mView = new GodotView(activity, this, xrMode, use_gl3, use_32_bits, use_debug_opengl);
+ mView = new GodotView(activity, this, xrMode, use_gl3, use_32_bits, use_debug_opengl, translucent);
containerLayout.addView(mView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
edittext.setView(mView);
io.setEdit(edittext);
@@ -608,6 +609,8 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
use_32_bits = true;
} else if (command_line[i].equals("--debug_opengl")) {
use_debug_opengl = true;
+ } else if (command_line[i].equals("--translucent")) {
+ translucent = true;
} else if (command_line[i].equals("--use_immersive")) {
use_immersive = true;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // check if the application runs on an android 4.4+
diff --git a/platform/android/java/lib/src/org/godotengine/godot/GodotView.java b/platform/android/java/lib/src/org/godotengine/godot/GodotView.java
index 032d9f9447..e0436d83f8 100644
--- a/platform/android/java/lib/src/org/godotengine/godot/GodotView.java
+++ b/platform/android/java/lib/src/org/godotengine/godot/GodotView.java
@@ -76,7 +76,7 @@ public class GodotView extends GLSurfaceView {
private final GodotRenderer godotRenderer;
public GodotView(Context context, Godot godot, XRMode xrMode, boolean p_use_gl3,
- boolean p_use_32_bits, boolean p_use_debug_opengl) {
+ boolean p_use_32_bits, boolean p_use_debug_opengl, boolean p_translucent) {
super(context);
GLUtils.use_gl3 = p_use_gl3;
GLUtils.use_32 = p_use_32_bits;
@@ -86,7 +86,8 @@ public class GodotView extends GLSurfaceView {
this.inputHandler = new GodotInputHandler(this);
this.detector = new GestureDetector(context, new GodotGestureHandler(this));
this.godotRenderer = new GodotRenderer();
- init(xrMode, false, 16, 0);
+
+ init(xrMode, p_translucent, 16, 0);
}
public void initInputDevices() {
@@ -139,6 +140,7 @@ public class GodotView extends GLSurfaceView {
* is interpreted as any 32-bit surface with alpha by SurfaceFlinger.
*/
if (translucent) {
+ this.setZOrderOnTop(true);
this.getHolder().setFormat(PixelFormat.TRANSLUCENT);
}
diff --git a/platform/android/os_android.cpp b/platform/android/os_android.cpp
index aad82dab81..ec3d121025 100644
--- a/platform/android/os_android.cpp
+++ b/platform/android/os_android.cpp
@@ -161,6 +161,8 @@ Error OS_Android::initialize(const VideoMode &p_desired, int p_video_driver, int
}
}
+ transparency_enabled = p_desired.layered;
+
if (gl_initialization_error) {
OS::get_singleton()->alert("Your device does not support any of the supported OpenGL versions.\n"
"Please try updating your Android version.",
diff --git a/platform/android/os_android.h b/platform/android/os_android.h
index b9e9473d25..7f369d8933 100644
--- a/platform/android/os_android.h
+++ b/platform/android/os_android.h
@@ -66,6 +66,8 @@ class OS_Android : public OS_Unix {
int video_driver_index;
+ bool transparency_enabled = false;
+
public:
// functions used by main to initialize/deinitialize the OS
virtual int get_video_driver_count() const;
@@ -150,6 +152,9 @@ public:
virtual String get_model_name() const;
virtual int get_screen_dpi(int p_screen = 0) const;
+ virtual bool get_window_per_pixel_transparency_enabled() const { return transparency_enabled; }
+ virtual void set_window_per_pixel_transparency_enabled(bool p_enabled) { ERR_FAIL_MSG("Setting per-pixel transparency is not supported at runtime, please set it in project settings instead."); }
+
virtual String get_unique_id() const;
virtual String get_system_dir(SystemDir p_dir, bool p_shared_storage = true) const;