Replace single method anonymous classes with lambdas in Godot Java code

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

@@ -279,29 +279,20 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 		editText.setView(mRenderView);
 		io.setEdit(editText);
 
-		view.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+		view.getViewTreeObserver().addOnGlobalLayoutListener(() -> {
-			@Override
-			public void onGlobalLayout() {
 			Point fullSize = new Point();
 			activity.getWindowManager().getDefaultDisplay().getSize(fullSize);
 			Rect gameSize = new Rect();
 			mRenderView.getView().getWindowVisibleDisplayFrame(gameSize);
-
 			final int keyboardHeight = fullSize.y - gameSize.bottom;
 			GodotLib.setVirtualKeyboardHeight(keyboardHeight);
-			}
 		});
 
-		mRenderView.queueOnRenderThread(new Runnable() {
+		mRenderView.queueOnRenderThread(() -> {
-			@Override
-			public void run() {
-				// Must occur after GodotLib.setup has completed.
 			for (GodotPlugin plugin : pluginRegistry.getAllPlugins()) {
 				plugin.onRegisterPluginWithGodotNative();
 			}
-
 			setKeepScreenOn("True".equals(GodotLib.getGlobal("display/window/energy_saving/keep_screen_on")));
-			}
 		});
 
 		// Include the returned non-null views in the Godot view hierarchy.
@@ -314,15 +305,12 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 	}
 
 	public void setKeepScreenOn(final boolean p_enabled) {
-		runOnUiThread(new Runnable() {
+		runOnUiThread(() -> {
-			@Override
-			public void run() {
 			if (p_enabled) {
 				getActivity().getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 			} else {
 				getActivity().getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 			}
-			}
 		});
 	}
 
@@ -368,21 +356,14 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 
 	public void alert(final String message, final String title) {
 		final Activity activity = getActivity();
-		runOnUiThread(new Runnable() {
+		runOnUiThread(() -> {
-			@Override
-			public void run() {
 			AlertDialog.Builder builder = new AlertDialog.Builder(activity);
 			builder.setMessage(message).setTitle(title);
 			builder.setPositiveButton(
 					"OK",
-						new DialogInterface.OnClickListener() {
+					(dialog, id) -> dialog.cancel());
-							public void onClick(DialogInterface dialog, int id) {
-								dialog.cancel();
-							}
-						});
 			AlertDialog dialog = builder.create();
 			dialog.show();
-			}
 		});
 	}
 
@@ -753,9 +734,7 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 
 	public void UiChangeListener() {
 		final View decorView = getActivity().getWindow().getDecorView();
-		decorView.setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener() {
+		decorView.setOnSystemUiVisibilityChangeListener(visibility -> {
-			@Override
-			public void onSystemUiVisibilityChange(int visibility) {
 			if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
 				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 					decorView.setSystemUiVisibility(
@@ -767,7 +746,6 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 							View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
 				}
 			}
-			}
 		});
 	}
 
@@ -796,9 +774,7 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 
 		final int typeOfSensor = event.sensor.getType();
 		if (mRenderView != null) {
-			mRenderView.queueOnRenderThread(new Runnable() {
+			mRenderView.queueOnRenderThread(() -> {
-				@Override
-				public void run() {
 				if (typeOfSensor == Sensor.TYPE_ACCELEROMETER) {
 					GodotLib.accelerometer(-x, y, -z);
 				}
@@ -811,7 +787,6 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 				if (typeOfSensor == Sensor.TYPE_GYROSCOPE) {
 					GodotLib.gyroscope(x, -y, z);
 				}
-				}
 			});
 		}
 	}
@@ -845,12 +820,7 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 		}
 
 		if (shouldQuit && mRenderView != null) {
-			mRenderView.queueOnRenderThread(new Runnable() {
+			mRenderView.queueOnRenderThread(GodotLib::back);
-				@Override
-				public void run() {
-					GodotLib.back();
-				}
-			});
 		}
 	}
 
@@ -927,9 +897,8 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 			;
 		if (cnt == 0)
 			return false;
-		mRenderView.queueOnRenderThread(new Runnable() {
 		// This method will be called on the rendering thread:
-			public void run() {
+		mRenderView.queueOnRenderThread(() -> {
 			for (int i = 0, n = cc.length; i < n; i++) {
 				int keyCode;
 				if ((keyCode = cc[i]) != 0) {
@@ -938,7 +907,6 @@ public class Godot extends Fragment implements SensorEventListener, IDownloaderC
 					GodotLib.key(0, 0, keyCode, false);
 				}
 			}
-			}
 		});
 		return true;
 	}

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

@@ -232,13 +232,10 @@ public class GodotGLRenderView extends GLSurfaceView implements GodotRenderView
 	public void onResume() {
 		super.onResume();
 
-		queueEvent(new Runnable() {
+		queueEvent(() -> {
-			@Override
-			public void run() {
 			// Resume the renderer
 			godotRenderer.onActivityResumed();
 			GodotLib.focusin();
-			}
 		});
 	}
 
@@ -246,13 +243,10 @@ public class GodotGLRenderView extends GLSurfaceView implements GodotRenderView
 	public void onPause() {
 		super.onPause();
 
-		queueEvent(new Runnable() {
+		queueEvent(() -> {
-			@Override
-			public void run() {
 			GodotLib.focusout();
 			// Pause the renderer
 			godotRenderer.onActivityPaused();
-			}
 		});
 	}
 }

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

@@ -149,13 +149,10 @@ public class GodotVulkanRenderView extends VkSurfaceView implements GodotRenderV
 	public void onResume() {
 		super.onResume();
 
-		queueOnVkThread(new Runnable() {
+		queueOnVkThread(() -> {
-			@Override
-			public void run() {
 			// Resume the renderer
 			mRenderer.onVkResume();
 			GodotLib.focusin();
-			}
 		});
 	}
 
@@ -163,13 +160,10 @@ public class GodotVulkanRenderView extends VkSurfaceView implements GodotRenderV
 	public void onPause() {
 		super.onPause();
 
-		queueOnVkThread(new Runnable() {
+		queueOnVkThread(() -> {
-			@Override
-			public void run() {
 			GodotLib.focusout();
 			// Pause the renderer
 			mRenderer.onVkPause();
-			}
 		});
 	}
 }

platform/android/java/lib/src/org/godotengine/godot/input/GodotGestureHandler.java

@@ -75,12 +75,7 @@ public class GodotGestureHandler extends GestureDetector.SimpleOnGestureListener
 		final int x = Math.round(event.getX());
 		final int y = Math.round(event.getY());
 		final int buttonMask = event.getButtonState();
-		queueEvent(new Runnable() {
+		queueEvent(() -> GodotLib.doubleTap(buttonMask, x, y));
-			@Override
-			public void run() {
-				GodotLib.doubleTap(buttonMask, x, y);
-			}
-		});
 		return true;
 	}
 
@@ -89,12 +84,7 @@ public class GodotGestureHandler extends GestureDetector.SimpleOnGestureListener
 		//Log.i("GodotGesture", "onScroll");
 		final int x = Math.round(distanceX);
 		final int y = Math.round(distanceY);
-		queueEvent(new Runnable() {
+		queueEvent(() -> GodotLib.scroll(x, y));
-			@Override
-			public void run() {
-				GodotLib.scroll(x, y);
-			}
-		});
 		return true;
 	}
 

platform/android/java/lib/src/org/godotengine/godot/input/GodotInputHandler.java

@@ -97,22 +97,12 @@ public class GodotInputHandler implements InputDeviceListener {
 				final int button = getGodotButton(keyCode);
 				final int godotJoyId = mJoystickIds.get(deviceId);
 
-				queueEvent(new Runnable() {
+				queueEvent(() -> GodotLib.joybutton(godotJoyId, button, false));
-					@Override
-					public void run() {
-						GodotLib.joybutton(godotJoyId, button, false);
-					}
-				});
 			}
 		} else {
 			final int scanCode = event.getScanCode();
 			final int chr = event.getUnicodeChar(0);
-			queueEvent(new Runnable() {
+			queueEvent(() -> GodotLib.key(keyCode, scanCode, chr, false));
-				@Override
-				public void run() {
-					GodotLib.key(keyCode, scanCode, chr, false);
-				}
-			});
 		}
 
 		return true;
@@ -143,22 +133,12 @@ public class GodotInputHandler implements InputDeviceListener {
 				final int button = getGodotButton(keyCode);
 				final int godotJoyId = mJoystickIds.get(deviceId);
 
-				queueEvent(new Runnable() {
+				queueEvent(() -> GodotLib.joybutton(godotJoyId, button, true));
-					@Override
-					public void run() {
-						GodotLib.joybutton(godotJoyId, button, true);
-					}
-				});
 			}
 		} else {
 			final int scanCode = event.getScanCode();
 			final int chr = event.getUnicodeChar(0);
-			queueEvent(new Runnable() {
+			queueEvent(() -> GodotLib.key(keyCode, scanCode, chr, true));
-				@Override
-				public void run() {
-					GodotLib.key(keyCode, scanCode, chr, true);
-				}
-			});
 		}
 
 		return true;
@@ -190,9 +170,7 @@ public class GodotInputHandler implements InputDeviceListener {
 			final int action = event.getActionMasked();
 			final int pointer_idx = event.getPointerId(event.getActionIndex());
 
-			mRenderView.queueOnRenderThread(new Runnable() {
+			mRenderView.queueOnRenderThread(() -> {
-				@Override
-				public void run() {
 				switch (action) {
 					case MotionEvent.ACTION_DOWN:
 					case MotionEvent.ACTION_CANCEL:
@@ -203,7 +181,6 @@ public class GodotInputHandler implements InputDeviceListener {
 						GodotLib.touch(event.getSource(), action, pointer_idx, evcount, arr);
 					} break;
 				}
-				}
 			});
 		}
 		return true;
@@ -228,13 +205,7 @@ public class GodotInputHandler implements InputDeviceListener {
 						// save value to prevent repeats
 						joystick.axesValues.put(axis, value);
 						final int godotAxisIdx = i;
-						queueEvent(new Runnable() {
+						queueEvent(() -> GodotLib.joyaxis(godotJoyId, godotAxisIdx, value));
-							@Override
-							public void run() {
-								GodotLib.joyaxis(godotJoyId, godotAxisIdx, value);
-								//Log.i(tag, "GodotLib.joyaxis("+godotJoyId+", "+godotAxisIdx+", "+value+");");
-							}
-						});
 					}
 				}
 
@@ -244,13 +215,7 @@ public class GodotInputHandler implements InputDeviceListener {
 					if (joystick.hatX != hatX || joystick.hatY != hatY) {
 						joystick.hatX = hatX;
 						joystick.hatY = hatY;
-						queueEvent(new Runnable() {
+						queueEvent(() -> GodotLib.joyhat(godotJoyId, hatX, hatY));
-							@Override
-							public void run() {
-								GodotLib.joyhat(godotJoyId, hatX, hatY);
-								//Log.i(tag, "GodotLib.joyhat("+godotJoyId+", "+hatX+", "+hatY+");");
-							}
-						});
 					}
 				}
 				return true;
@@ -259,12 +224,7 @@ public class GodotInputHandler implements InputDeviceListener {
 			final float x = event.getX();
 			final float y = event.getY();
 			final int type = event.getAction();
-			queueEvent(new Runnable() {
+			queueEvent(() -> GodotLib.hover(type, x, y));
-				@Override
-				public void run() {
-					GodotLib.hover(type, x, y);
-				}
-			});
 			return true;
 
 		} else if (event.isFromSource(InputDevice.SOURCE_MOUSE) || event.isFromSource(InputDevice.SOURCE_MOUSE_RELATIVE)) {
@@ -356,12 +316,7 @@ public class GodotInputHandler implements InputDeviceListener {
 		}
 		mJoysticksDevices.put(deviceId, joystick);
 
-		queueEvent(new Runnable() {
+		queueEvent(() -> GodotLib.joyconnectionchanged(id, true, joystick.name));
-			@Override
-			public void run() {
-				GodotLib.joyconnectionchanged(id, true, joystick.name);
-			}
-		});
 	}
 
 	@Override
@@ -374,12 +329,7 @@ public class GodotInputHandler implements InputDeviceListener {
 		mJoystickIds.delete(deviceId);
 		mJoysticksDevices.delete(deviceId);
 
-		queueEvent(new Runnable() {
+		queueEvent(() -> GodotLib.joyconnectionchanged(godotJoyId, false, ""));
-			@Override
-			public void run() {
-				GodotLib.joyconnectionchanged(godotJoyId, false, "");
-			}
-		});
 	}
 
 	@Override
@@ -468,12 +418,7 @@ public class GodotInputHandler implements InputDeviceListener {
 				final float x = event.getX();
 				final float y = event.getY();
 				final int type = event.getAction();
-				queueEvent(new Runnable() {
+				queueEvent(() -> GodotLib.hover(type, x, y));
-					@Override
-					public void run() {
-						GodotLib.hover(type, x, y);
-					}
-				});
 				return true;
 			}
 			case MotionEvent.ACTION_BUTTON_PRESS:
@@ -483,12 +428,7 @@ public class GodotInputHandler implements InputDeviceListener {
 				final float y = event.getY();
 				final int buttonsMask = event.getButtonState();
 				final int action = event.getAction();
-				queueEvent(new Runnable() {
+				queueEvent(() -> GodotLib.touch(event.getSource(), action, 0, 1, new float[] { 0, x, y }, buttonsMask));
-					@Override
-					public void run() {
-						GodotLib.touch(event.getSource(), action, 0, 1, new float[] { 0, x, y }, buttonsMask);
-					}
-				});
 				return true;
 			}
 			case MotionEvent.ACTION_SCROLL: {
@@ -498,12 +438,7 @@ public class GodotInputHandler implements InputDeviceListener {
 				final int action = event.getAction();
 				final float verticalFactor = event.getAxisValue(MotionEvent.AXIS_VSCROLL);
 				final float horizontalFactor = event.getAxisValue(MotionEvent.AXIS_HSCROLL);
-				queueEvent(new Runnable() {
+				queueEvent(() -> GodotLib.touch(event.getSource(), action, 0, 1, new float[] { 0, x, y }, buttonsMask, verticalFactor, horizontalFactor));
-					@Override
-					public void run() {
-						GodotLib.touch(event.getSource(), action, 0, 1, new float[] { 0, x, y }, buttonsMask, verticalFactor, horizontalFactor);
-					}
-				});
 			}
 			case MotionEvent.ACTION_DOWN:
 			case MotionEvent.ACTION_UP: {

platform/android/java/lib/src/org/godotengine/godot/input/GodotTextInputWrapper.java

@@ -94,9 +94,7 @@ public class GodotTextInputWrapper implements TextWatcher, OnEditorActionListene
 	public void beforeTextChanged(final CharSequence pCharSequence, final int start, final int count, final int after) {
 		//Log.d(TAG, "beforeTextChanged(" + pCharSequence + ")start: " + start + ",count: " + count + ",after: " + after);
 
-		mRenderView.queueOnRenderThread(new Runnable() {
+		mRenderView.queueOnRenderThread(() -> {
-			@Override
-			public void run() {
 			for (int i = 0; i < count; ++i) {
 				GodotLib.key(KeyEvent.KEYCODE_DEL, KeyEvent.KEYCODE_DEL, 0, true);
 				GodotLib.key(KeyEvent.KEYCODE_DEL, KeyEvent.KEYCODE_DEL, 0, false);
@@ -106,7 +104,6 @@ public class GodotTextInputWrapper implements TextWatcher, OnEditorActionListene
 					break;
 				}
 			}
-			}
 		});
 	}
 
@@ -118,9 +115,7 @@ public class GodotTextInputWrapper implements TextWatcher, OnEditorActionListene
 		for (int i = start; i < start + count; ++i) {
 			newChars[i - start] = pCharSequence.charAt(i);
 		}
-		mRenderView.queueOnRenderThread(new Runnable() {
+		mRenderView.queueOnRenderThread(() -> {
-			@Override
-			public void run() {
 			for (int i = 0; i < count; ++i) {
 				int key = newChars[i];
 				if ((key == '\n') && !mEdit.isMultiline()) {
@@ -130,7 +125,6 @@ public class GodotTextInputWrapper implements TextWatcher, OnEditorActionListene
 				GodotLib.key(0, 0, key, true);
 				GodotLib.key(0, 0, key, false);
 			}
-			}
 		});
 	}
 
@@ -139,15 +133,12 @@ public class GodotTextInputWrapper implements TextWatcher, OnEditorActionListene
 		if (mEdit == pTextView && isFullScreenEdit()) {
 			final String characters = pKeyEvent.getCharacters();
 
-			mRenderView.queueOnRenderThread(new Runnable() {
+			mRenderView.queueOnRenderThread(() -> {
-				@Override
-				public void run() {
 				for (int i = 0; i < characters.length(); i++) {
 					final int ch = characters.codePointAt(i);
 					GodotLib.key(0, 0, ch, true);
 					GodotLib.key(0, 0, ch, false);
 				}
-				}
 			});
 		}