keyboard position and size handled by a global proxy instead of sendmessage to a dummy gameobject

Author: nostek

Example/Assets/Plugins/NativeEditBox/Android/NativeEditBox.java

@@ -25,9 +25,6 @@
 
 @SuppressWarnings("unused")
 public class NativeEditBox {
-    private final String GLOBAL_LISTENER_NAME = "NativeEditBoxGlobalListener_1000";
-    private final String GLOBAL_METHOD_KEYBOARD_CHANGE = "FromNative_KeyboardChange";
-
     private enum TextAnchor
     {
         UpperLeft,
@@ -74,6 +71,7 @@ private enum TouchScreenKeyboardType
     private static ViewTreeObserver.OnGlobalLayoutListener sGlobalListener = null;
     private static FrameLayout sLayout = null;
 
+    private static NativeEditBoxGlobalProxy globalProxy = null;
     private NativeEditBoxInstanceProxy instanceProxy = null;
 
     private EditText mEditBox = null;
@@ -82,9 +80,10 @@ private enum TouchScreenKeyboardType
     private InputType currentInputType = InputType.Standard;
     private TouchScreenKeyboardType currentKeyboardType = TouchScreenKeyboardType.Default;
 
-    public NativeEditBox(NativeEditBoxInstanceProxy callback)
+    public NativeEditBox(NativeEditBoxGlobalProxy global, NativeEditBoxInstanceProxy instance)
     {
-        instanceProxy = callback;
+        globalProxy = global;
+        instanceProxy = instance;
     }
 
     @SuppressWarnings("unused")
@@ -207,10 +206,12 @@ public void onGlobalLayout() {
                     if(kbHeight > 2)
                     {
                         //Showing
-                        UnityPlayer.UnitySendMessage(GLOBAL_LISTENER_NAME, GLOBAL_METHOD_KEYBOARD_CHANGE, String.format(Locale.ENGLISH, "%d|%d|%d|%d", 0, screen.x, r.bottom, kbHeight));
+                        if(globalProxy != null)
+                            globalProxy.OnJavaKeyboardChange(0, screen.x, r.bottom, kbHeight);
                     }else{
                         //Not showing
-                        UnityPlayer.UnitySendMessage(GLOBAL_LISTENER_NAME, GLOBAL_METHOD_KEYBOARD_CHANGE, "");
+                        if(globalProxy != null)
+                            globalProxy.OnJavaKeyboardChange(0, 0, 0, 0);
                     }
                 }
             };

Example/Assets/Plugins/NativeEditBox/Android/NativeEditBoxGlobalProxy.java

@@ -0,0 +1,6 @@
+package com.unityextensions.nativeeditbox;
+
+public interface NativeEditBoxGlobalProxy
+{
+     void OnJavaKeyboardChange(float x, float y, float width, float height);
+}

Example/Assets/Plugins/NativeEditBox/Android/NativeEditBoxGlobalProxy.java.meta

@@ -8,6 +8,18 @@
 
 public partial class NativeEditBox : IPointerClickHandler
 {
+	class GlobalProxy : AndroidJavaProxy
+	{
+		public GlobalProxy() : base("com.unityextensions.nativeeditbox.NativeEditBoxGlobalProxy")
+		{
+		}
+
+		void OnJavaKeyboardChange(float x, float y, float width, float height)
+		{
+			NativeEditBox.keyboard = new Rect(x, y, width, height);
+		}
+	}
+
 	class InstanceProxy : AndroidJavaProxy
 	{
 		NativeEditBox owner = null;
@@ -60,10 +72,7 @@ void OnJavaTapOutside()
 		}
 	}
 
-	const string GlobalListenerName = "NativeEditBoxGlobalListener_1000";
-
-	static GameObject globalListener = null;
-
+	static GlobalProxy globalProxy = null;
 	InstanceProxy instanceProxy = null;
 
 	AndroidJavaObject editBox = default;
@@ -118,26 +127,12 @@ public string text
 
 	void AwakeNative()
 	{
-		CreateGlobalListener();
-
 		inputField.interactable = false;
 
 		if (!switchBetweenNativeAndUnity)
 			StartCoroutine(CreateNow(false));
 	}
 
-	void CreateGlobalListener()
-	{
-		if (globalListener != null)
-			return;
-
-		globalListener = new GameObject();
-		globalListener.name = GlobalListenerName;
-		GameObject.DontDestroyOnLoad(globalListener);
-
-		globalListener.AddComponent<NativeEditBoxGlobalListener>();
-	}
-
 	bool ShowText
 	{
 		set
@@ -233,9 +228,12 @@ void SetupInputField()
 			_ => TextAnchor.TextAnchorUpperLeft
 		};
 
+		if (globalProxy == null)
+			globalProxy = new GlobalProxy();
+
 		instanceProxy = new InstanceProxy(this);
 
-		editBox = new AndroidJavaObject("com.unityextensions.nativeeditbox.NativeEditBox", instanceProxy);
+		editBox = new AndroidJavaObject("com.unityextensions.nativeeditbox.NativeEditBox", globalProxy, instanceProxy);
 		editBox.Call("Init", inputField.lineType != TMP_InputField.LineType.SingleLine);
 
 		UpdatePlacementNow();
@@ -263,12 +261,6 @@ IEnumerator CoSelectAll()
 		SelectRange(0, inputField.text.Length);
 		SelectRange(0, inputField.text.Length);
 	}
-
-	#region Public Methods
-
-	public static Rect KeyboardArea => NativeEditBoxGlobalListener.KeyboardArea;
-
-	#endregion
 }
 
 #endif

Example/Assets/Plugins/NativeEditBox/NativeEditBox.android.cs

@@ -135,4 +135,12 @@ static NativeEditBox FindNativeEditBoxBy(int instanceId)
 				return i;
 		return null;
 	}
+
+	#region Keyboard Position and Size
+
+	static Rect keyboard = default(Rect);
+
+	public static Rect KeyboardArea => keyboard;
+
+	#endregion
 }

Example/Assets/Plugins/NativeEditBox/NativeEditBox.cs

@@ -89,12 +89,6 @@ void UpdateNative()
 	}
 
 	#endregion
-
-	#region Public Methods
-
-	public static Rect KeyboardArea => new Rect();
-
-	#endregion
 }
 
 #endif

Example/Assets/Plugins/NativeEditBox/NativeEditBox.editor.cs

@@ -312,8 +312,6 @@ static void DelegateTapOutside(int instanceId)
 
 	#region GLOBAL CALLBACK
 
-	static Rect keyboard = default(Rect);
-
 	delegate void DelegateKeyboardChanged(float x, float y, float width, float height);
 
 	[MonoPInvokeCallback(typeof(DelegateKeyboardChanged))]
@@ -323,12 +321,6 @@ static void delegateKeyboardChanged(float x, float y, float width, float height)
 	}
 
 	#endregion
-
-	#region Public Methods
-
-	public static Rect KeyboardArea => keyboard;
-
-	#endregion
 }
 
 #endif