android - 如何从卡片视图中删除自定义卡片

Question

我正在使用自定义卡片视图来显示服务器数据。我有一堆一张一张出现的卡片。所以，我想知道我应该如何在点击删除按钮时删除整张卡片。扫描仪图像

这是适配器代码：

    public class CardAdapter<M> extends BaseCardAdapter implements View.OnLongClickListener {
            private List<Model> modelList;
            private Context context;
            TextView tvCount;

            public CardAdapter(List<Model> modelList, Context context, TextView tvCount) {
                this.modelList = modelList;
                this.context = context;
                this.tvCount = tvCount;
            }

            @Override
            public int getCount() {
                return modelList.size();
            }

            @Override
            public int getCardLayoutId() {
                return R.layout.card_item;
            }

            @RequiresApi(api = Build.VERSION_CODES.N)
            @Override
            public void onBindData(final int position, final View cardview) {
        //      if (modelList==null || modelList.size()==0){
        //          return;
        //      }
        //        tvCount.setText((position)+"/"+modelList.size());

                // ImageView imageView=(ImageView)cardview.findViewById(R.id.imageView);
                TextView textView = (TextView) cardview.findViewById(R.id.textView);
                TextView textView1 = (TextView) cardview.findViewById(R.id.textView1);
                TextView textView2 = (TextView) cardview.findViewById(R.id.textView2);
                TextView textView3 = (TextView) cardview.findViewById(R.id.textView3);
                TextView textView4 = (TextView) cardview.findViewById(R.id.textView4);
                TextView textView5 = (TextView) cardview.findViewById(R.id.textView5);
                TextView textView6 = (TextView) cardview.findViewById(R.id.textView6);
                TextView textView7 = (TextView) cardview.findViewById(R.id.textView7);

                final Model model = modelList.get(position);
                //textView.setText ("Name" + ": " +  model.getName());
                String name = "<font color=#FFFFFF>Name:</font>";
                String nameOne = "<font color=#FFFFFF>" + " " + model.getName() + " </font>";
                textView.setText(Html.fromHtml(name + nameOne));

                //textView1.setText("Job Title" + ": " +  model.getJobTitle());
                String job = "<font color=#FFFFFF>Job Title:</font>";
                String jobOne = "<font color=#FFFFFF>" + " " + model.getJobTitle() + " </font>";
                textView1.setText(Html.fromHtml(job + jobOne));

                //textView2.setText("Company" + ": " +  model.getCompany());
                String company = "<font color=#FFFFFF>Company:</font>";
                String companyOne = "<font color=#FFFFFF>" + " " + model.getCompany() + " </font>";
                textView2.setText(Html.fromHtml(company + companyOne));

                //textView3.setText("Telephone" + ": " +  model.getTelephone());
                String telephone = "<font color=#FFFFFF>Telephone:</font>";
                String telephoneOne = "<font color=#FFFFFF>" + " " + model.getTelephone() + " </font>";
                textView3.setText(Html.fromHtml(telephone + telephoneOne));

                //textView4.setText("Mobile" + ": " +  model.getMobile());
                String mobile = "<font color=#FFFFFF>Mobile:</font>";
                String mobileOne = "<font color=#FFFFFF>" + " " + model.getMobile() + " </font>";
                textView4.setText(Html.fromHtml(mobile + mobileOne));

                //textView5.setText("Email" + ": " +  model.getEmail());
                String email = "<font color=#FFFFFF>Email:</font>";
                String emailOne = "<font color=#FFFFFF>" + " " + model.getEmail() + " </font>";
                textView5.setText(Html.fromHtml(email + emailOne));

                //textView6.setText("Address" + ": " +  model.getAddress());
                String address = "<font color=#FFFFFF>Address:</font>";
                String addressOne = "<font color=#FFFFFF>" + " " + model.getAddress() + " </font>";
                textView6.setText(Html.fromHtml(address + addressOne));

                //textView7.setText("Narration" + ": " +  model.getNarration());
                String narration = "<font color=#FFFFFF>Narration:</font>";
                String narrationOne = "<font color=#FFFFFF>" + " " + model.getNarration() + " </font>";
                textView7.setText(Html.fromHtml(narration + narrationOne));

cardview.findViewById(R.id.textView).setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                Model model = modelList.get(position);

                customDialogAddContactnShare(model);

                return false;
            }
        });

        cardview.findViewById(R.id.textView2).setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                Model model = modelList.get(position);

                customDialogSearch(model.getCompany());

                return false;
            }
        });

        cardview.findViewById(R.id.textView4).setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                Model model = modelList.get(position);

                customeDilogMobCallnMsg(model.getMobile());

                return false;
            }
        });

        cardview.findViewById(R.id.textView3).setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                Model model = modelList.get(position);

                customDilogTeleCallnMsg(model.getTelephone());
                return false;
            }
        });

        cardview.findViewById(R.id.textView5).setOnLongClickListener(new View.OnLongClickListener() {

            @Override
            public boolean onLongClick(View v) {
                Model model = modelList.get(position);

                customDialogMail(model.getEmail());

                return false;
            }
        });

        cardview.findViewById(R.id.textView6).setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                Model model = modelList.get(position);

                customDialogMapAddress(model.getAddress());

                return false;
            }
        });

        //tvCount.setText(modelList.size());
        //Toast.makeText(context," " + modelList.size(),Toast.LENGTH_SHORT).show();
        // Picasso.with(context).load(model.getImage()).into(imageView);
    }

    @Override
    public boolean onLongClick(View v) {
        return false;
    }

像这样。在这里，我想删除第一个位置卡片（刷卡后出现的卡片）。如果用户单击删除按钮，则第一张卡将被删除。

帮我解决这个问题。

先感谢您！！

标签： android

Answer 1

为此，您可以先在适配器中找到位置，然后在该位置调用删除卡的方法，如下所示，从数据库中获取数据

private void deletePlace(int position) {
        DBOpenHelper dbOpenHcelper = new DBOpenHelper(context);
        dbOpenHelper.deleteData(arrayList.get(position).getEVENT());
        arrayList.remove(position);
        notifyItemRemoved(position);
        notifyItemRangeChanged(position,arrayList.size());

}

我希望这对你有帮助！！