开发iOS键盘支持（未完工）

Author: Aaron8052

Plugins/Native/Headers/Input.h

@@ -0,0 +1,5 @@
+#import "../Utils.mm"
+#import <GameController/GameController.h>
+@interface Input : NSObject
+
+@end

Plugins/Native/Headers/Input.h.meta

@@ -0,0 +1,91 @@
+#import "../Headers/Input.h"
+
+
+@implementation Input
+static BOOL inited;
+API_AVAILABLE(ios(14.0)) static GCKeyboard* keyboard;
+NSMutableSet *pressedKeys;
+
++(void)Init
+{
+    if(inited)
+        return;
+    if (@available(iOS 14.0, *)) {
+        keyboard = GCKeyboard.coalescedKeyboard;
+        pressedKeys = [NSMutableSet init];
+        [[NSNotificationCenter defaultCenter] addObserver:[Input class]
+                                                 selector:@selector(OnKeyboardConnected:)
+                                                     name:GCKeyboardDidConnectNotification
+                                                   object:nil];
+        [[NSNotificationCenter defaultCenter] addObserver:[Input class]
+                                                 selector:@selector(OnKeyboardDisconnected:)
+                                                     name:GCKeyboardDidDisconnectNotification
+                                                   object:nil];
+    }
+    inited = YES;
+}
+
++(void)OnKeyboardConnected:(NSNotification *)notification
+{
+    if (@available(iOS 14.0, *)) {
+        keyboard = notification.object;
+        keyboard.keyboardInput.keyChangedHandler = ^(GCKeyboardInput * _Nonnull keyboard, GCControllerButtonInput * _Nonnull key, GCKeyCode keyCode, BOOL pressed)
+        {
+            NSNumber *KeyCodeNumber = [NSNumber numberWithLong:keyCode];
+            if(pressed){
+                [pressedKeys addObject:KeyCodeNumber];
+            }
+            else{
+                [pressedKeys removeObject:KeyCodeNumber];
+            }
+        };
+    }
+}
+
++(void)OnKeyboardDisconnected:(NSNotification *)notification
+{
+    if (@available(iOS 14.0, *)) {
+        
+        if(keyboard != nil)
+            keyboard.keyboardInput.keyChangedHandler = nil;
+        keyboard = nil;
+        
+    }
+}
+
++(BOOL)IsKeyboardSupported
+{
+    if (@available(iOS 14.0, *))
+    {
+        [Input Init];
+        return keyboard != nil;
+    } else {
+        return NO;
+    }
+    
+}
+
++(BOOL)IsAnyKeyPressed
+{
+    if (@available(iOS 14.0, *))
+    {
+        [Input Init];
+        return keyboard.keyboardInput.anyKeyPressed;
+    } else {
+        return false;
+    }
+}
+
++(BOOL)GetKey:(GCKeyCode)keyCode
+API_AVAILABLE(ios(14.0))
+{
+    if (@available(iOS 14.0, *)){
+        [Input Init];
+        NSNumber *KeyCodeNumber = [NSNumber numberWithLong:keyCode];
+        return [pressedKeys containsObject:KeyCodeNumber];
+    }
+    return NO;
+    
+}
+
+@end