通过单击列表适配器内的按钮编辑 EditText Android

Question

我有一个 ListView 和它下面的一些 EditText。列表中的每一行都有一个编辑按钮，单击该按钮应填满列表视图下方的 EditText。现在的问题是我有一个为 ListView 定义的自定义适配器。当我在 Adapter class 中膨胀布局而我的 EditTexts 在另一个中时，如何在单击 ListView 行内的按钮时填充 EditText？

编辑

这是我的适配器代码

public class CompleteCommentsAdapter : BaseAdapter 
    {
        private Activities.CommentListActivity commentListActivity;
        private List<Comments> dummyCommentList;
        private TextView txtUserName;
        private TextView txtCommentTime;
        private ImageView imgUserImage;
        private TextView txtCommentText;
        private ImageButton ibtnEdit;
        private ImageButton itbtnDelete;

        public CompleteCommentsAdapter(Activities.CommentListActivity commentListActivity, List<Comments> dummyCommentList)
        {
            // TODO: Complete member initialization
            this.commentListActivity = commentListActivity;
            this.dummyCommentList = dummyCommentList;
        }
        public override int Count
        {
            get { return  dummyCommentList.Count(); }
        }

        public override Java.Lang.Object GetItem(int position)
        {
            return position;
        }

        public override long GetItemId(int position)
        {
            return position;
        }

        public override View GetView(int position, View convertView, ViewGroup parent)
        {
            if (convertView == null)
            {

                convertView = commentListActivity.LayoutInflater.Inflate(Resource.Layout.comment_list_row, null);
                 txtUserName = convertView.FindViewById<TextView>(Resource.Id.txtCommenterName);
            txtCommentTime = convertView.FindViewById<TextView>(Resource.Id.txtCommenterTime);
            imgUserImage = convertView.FindViewById<ImageView>(Resource.Id.imgProfileUserImage);
            txtCommentText = convertView.FindViewById<TextView>(Resource.Id.txtCommentText);
            ibtnEdit = convertView.FindViewById<ImageButton>(Resource.Id.imgBtnEdit);
            itbtnDelete = convertView.FindViewById<ImageButton>(Resource.Id.imgBtnDelete);
            }


            Comments mComments = dummyCommentList.ElementAt(position);

            txtUserName.Text = mComments.UserName;
            txtCommentTime.Text = mComments.CommentTime;



            txtCommentText.Text = mComments.CommentText;
            ibtnEdit.Click += ibtnEdit_Click;
           return convertView;
        }

        void ibtnEdit_Click(object sender, EventArgs e)
        {

        }
    }

Answer 1

     public override View GetView(int position, View convertView, ViewGroup parent)
                {
                    if (convertView == null)
                    {

                        convertView = commentListActivity.LayoutInflater.Inflate(Resource.Layout.comment_list_row, null);
                         txtUserName = convertView.FindViewById<TextView>(Resource.Id.txtCommenterName);
                    txtCommentTime = convertView.FindViewById<TextView>(Resource.Id.txtCommenterTime);
                    imgUserImage = convertView.FindViewById<ImageView>(Resource.Id.imgProfileUserImage);
                    txtCommentText = convertView.FindViewById<TextView>(Resource.Id.txtCommentText);
                    ibtnEdit = convertView.FindViewById<ImageButton>(Resource.Id.imgBtnEdit);
                    itbtnDelete = convertView.FindViewById<ImageButton>(Resource.Id.imgBtnDelete);
                    }


                    Comments mComments = dummyCommentList.ElementAt(position);

                    txtUserName.Text = mComments.UserName;
                    txtCommentTime.Text = mComments.CommentTime;

                    txtCommentTime.setOnClickListener(new OnClickListener() {
                        @Override
                        public void onClick(View v) {
//do what you want here

}
                    });


                   return convertView;
                }

Answer 2

编辑按钮：

 ibtnEdit.setOnClickListener(new OnClickListener() {
     @Override
       public void onClick(View v) {
       txtUserName.setText(""); 
       txtCommentTime.setText("");
       txtCommentText.setText("");
       }
 });

Answer 3

如果监听器必须附加到按钮，而不是整行，您可以将对那些编辑文本的引用传递给适配器。或者，您可以在您的应用程序中构建一个 EventBus，通过不同的类.

发送点击的文本

通过单击列表适配器内的按钮编辑 EditText Android

Edit EditText from button click inside a List Adapter Android

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