add edittext methods

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

@@ -0,0 +1,34 @@
+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
+    }
+
+    override fun onKeyDown(pKeyCode: Int, pKeyEvent: KeyEvent): Boolean {
+        super.onKeyDown(pKeyCode, pKeyEvent)
+        if (pKeyCode != 4) {
+            return true
+        }
+        mCocos2dxGLSurfaceView!!.requestFocus()
+        return true
+    }
+}