/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// Use this package so that we can access package-private fields of TextInputLayout.
package com.google.android.material.textfield;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;

public class MountableTextInputLayout extends TextInputLayout {

  public MountableTextInputLayout(Context context) {
    super(context, null);
  }

  // Reset the TextInputLayout so that it can be recycled and assigned a new EditText.
  public void reset() {
    ((ViewGroup) getChildAt(0)).removeView(editText);
    editText = null;
  }

  // Delegate the focus listener to the EditText
  @Override
  public void setOnFocusChangeListener(View.OnFocusChangeListener l) {
    if (editText == null) {
      return;
    }
    editText.setOnFocusChangeListener(l);
  }

  @Override
  public View.OnFocusChangeListener getOnFocusChangeListener() {
    if (editText == null) {
      return null;
    }
    return editText.getOnFocusChangeListener();
  }
}

@@ -832,16 +832,52 @@
 ewGroup;
+%0Aimport androidx.annotation.NonNull;
 %0A%0Apublic
@@ -935,16 +935,84 @@
 yout %7B%0A%0A
+  private View.OnFocusChangeListener onFocusChangeListener = null;%0A%0A
   public
@@ -1083,24 +1083,244 @@
 null);%0A  %7D%0A%0A
+  @Override%0A  public void addView(%0A      @NonNull View child, int index, @NonNull final ViewGroup.LayoutParams params) %7B%0A    super.addView(child, index, params);%0A    setOnFocusChangeListener(onFocusChangeListener);%0A  %7D%0A%0A
   // Reset t
@@ -1626,24 +1626,55 @@
 stener l) %7B%0A
+    onFocusChangeListener = l;%0A
     if (edit
@@ -1841,81 +1841,16 @@
     
-if (editText == null) %7B%0A      return null;%0A    %7D%0A    return editText.getO
+return o
 nFoc
@@ -1865,18 +1865,16 @@
 Listener
-()
 ;%0A  %7D%0A%7D%0A

Fix MaterialInputText on focus event issue