cleanup edittext

app/src/main/java/org/cocos2dx/lib/Cocos2dxEditText.kt

@@ -1,34 +1,18 @@
 package org.cocos2dx.lib
 
 import android.content.Context
-import android.util.AttributeSet
 import android.view.KeyEvent
 import androidx.appcompat.widget.AppCompatEditText
 
-class Cocos2dxEditText : AppCompatEditText {
-    private var mCocos2dxGLSurfaceView: Cocos2dxGLSurfaceView? = null
-
-    constructor(context: Context) : super(context) {}
-    constructor(context: Context, attrs: AttributeSet) : super(
-        context, attrs
-    ) {
-    }
-
-    constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super(
-        context, attrs, defStyle
-    ) {
-    }
-
-    fun setCocos2dxGLSurfaceView(pCocos2dxGLSurfaceView: Cocos2dxGLSurfaceView?) {
-        mCocos2dxGLSurfaceView = pCocos2dxGLSurfaceView
-    }
+class Cocos2dxEditText(context: Context) : AppCompatEditText(context) {
+    var cocos2dxGLSurfaceView: Cocos2dxGLSurfaceView? = null
 
     override fun onKeyDown(pKeyCode: Int, pKeyEvent: KeyEvent): Boolean {
         super.onKeyDown(pKeyCode, pKeyEvent)
-        if (pKeyCode != 4) {
+        if (pKeyCode != KeyEvent.KEYCODE_BACK) {
             return true
         }
-        mCocos2dxGLSurfaceView!!.requestFocus()
+        cocos2dxGLSurfaceView?.requestFocus()
         return true
     }
 }

app/src/main/java/org/cocos2dx/lib/Cocos2dxGLSurfaceView.kt

@@ -222,7 +222,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
         mCocos2dxEditText = pCocos2dxEditText
         if (sCocos2dxTextInputWrapper != null) {
             mCocos2dxEditText?.setOnEditorActionListener(sCocos2dxTextInputWrapper)
-            mCocos2dxEditText?.setCocos2dxGLSurfaceView(this)
+            mCocos2dxEditText?.cocos2dxGLSurfaceView = this
             requestFocus()
         }
     }