Question

在我的应用程序中，我从手机联系人列表中获得Arraylist简单ListView，并且我在输入edittext后尝试过滤它。我在应用程序中使用了viewpages v4，我的EditText位于ActivityMain而我的Listview位于ContactsFragment ViewPager中，我定义了简单的接口侦听器来发送类型字符ActivityMain至ContactsFragment。输入edittext后ListView我的softkeyboard成功按类型字符过滤，但在adapter.getFilter().filter("a");可见之前不会刷新，我必须要隐藏键盘以通过过滤的字符串刷新列表视图。

例如：

按“a”过滤列表视图：

public class AdapterContacts extends BaseAdapter implements Filterable {

    private LayoutInflater inflater;
    private Context context;
    private List<ContactLists> categoryArrayList;
    private final ArrayList<ContactLists> originalList = new ArrayList<ContactLists>();
    private NameFilter filter;

    public AdapterContacts(ArrayList<ContactLists> array) {
        categoryArrayList = array;
    }

    public AdapterContacts(Context context, List<ContactLists> array) {
        this.context = context;
        inflater = LayoutInflater.from(this.context);
        categoryArrayList = array;
        originalList.addAll(array);
    }

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

    @Override
    public ContactLists getItem(int position) {
        return categoryArrayList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ...
    }

    private static class UI extends HelperUI {
        ...
    }

    private class ViewHolder {
        private UI UI;

        public ViewHolder(View view) {
            UI = new UI(view);
        }

        public void fillItems(final AdapterContacts adapter, final ContactLists item, final int position) {
        ...
    }

    @Override
    public Filter getFilter() {
        if (filter == null) {
            filter = new NameFilter();
        }
        return filter;
    }

    private class NameFilter extends Filter {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            constraint = constraint.toString().toLowerCase();
            FilterResults result = new FilterResults();
            if (constraint != null && constraint.toString().length() > 0) {
                ArrayList<ContactLists> filteredItems = new ArrayList<ContactLists>();
                int l = originalList.size();
                for (int i = 0 ; i < l; i++) {
                    ContactLists nameList = originalList.get(i);
                    if (nameList.getContact_name().toString().contains(constraint)) {
                        filteredItems.add(nameList);
                    }
                }
                result.count = filteredItems.size();
                result.values = filteredItems;
            } else {
                synchronized (this) {
                    result.values = originalList;
                    result.count = originalList.size();
                }
            }
            return result;
        }


        @SuppressWarnings("unchecked")
        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            ArrayList<ContactLists> temp = (ArrayList<ContactLists>) results.values;
            categoryArrayList.clear();
            categoryArrayList.addAll(temp);
            notifyDataSetChanged();
            temp.clear();
            notifyDataSetInvalidated();
        }
    }
}

我的适配器来自Filterable

var fullOutputPath = "~/Content/img/";
var imageBytes = Convert.FromBase64String(str.Replace("data:image/png;base64,", "").Replace("data:image/jpeg;base64,", ""));
using (var ms = new MemoryStream(imageBytes, 0, imageBytes.Length))
{
      ms.Write(imageBytes, 0, imageBytes.Length);
      var image = Image.FromStream(ms);
      image.Save(fullOutputPath, ImageFormat.Png); 
}

Answer 1

您可以使用以下代码隐藏您的softKeyboard

    private void hideKeyboard() {
    // Check if no view has focus:
    View view = this.getCurrentFocus();
    if (view != null) {
        InputMethodManager inputManager = (InputMethodManager) this
                .getSystemService(Context.INPUT_METHOD_SERVICE);
        inputManager.hideSoftInputFromWindow(view.getWindowToken(),
                InputMethodManager.HIDE_NOT_ALWAYS);
    }
}

Answer 2

尝试在清单活动声明中使用android：windowSoftInputMode =“adjustPan”

当软键盘可见时，Android过滤器Listview会冻结

2 个答案: