Android输入框实时模糊搜索效果的示例代码

Android输入框实时模糊搜索

很多开发场景会用到搜索框实时模糊搜索来帮助用户输入内容，如图

思路是在EditText 字符变动的时候 弹出ListPopupwindow并更新列表，这样的做法google已经封装为AutoCompleteTextView

用法

mAutoCompleteTextView.setAdapter(adapter);
 mAutoCompleteTextView.setFocusable(true);
 mAutoCompleteTextView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  @Override
  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

}
 });

adapter自定义
Adapter 继承 BaseApdater 需要实现 Filterable 接口

private class SearchAdapter extends BaseAdapter implements Filterable {

private Context mContext;

public SearchAdapter(Context context) {
  super();
  this.mContext = context;
 }

@Override
 public int getCount() {
  if (mSearchCustomEntities == null) {
   return 0;
  } else {
   return mSearchCustomEntities.size();
  }
 }

@Override
 public Object getItem(int position) {
  if (mSearchCustomEntities == null) {
   return null;
  } else {
   return mSearchCustomEntities.get(position);
  }

}

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

@Override
 public View getView(int position, View convertView, ViewGroup parent) {
  ViewHolder holder = null;
  if (convertView == null) {
   holder = new ViewHolder();
   convertView = LayoutInflater.from(mContext).inflate(R.layout.item_search_custom, null, false);
   holder.tag = (TextView) convertView.findViewById(R.id.tv_custome_type);
   holder.name = (TextView) convertView.findViewById(R.id.custom_name);
   holder.phone = (TextView) convertView.findViewById(R.id.tv_phone);
   convertView.setTag(holder);
  } else {
   holder = (ViewHolder) convertView.getTag();
  }
  holder.phone.setText(mSearchCustomEntities.get(position).phone);
  holder.name.setText(mSearchCustomEntities.get(position).name);
  if (mSearchCustomEntities.get(position).type == CustomerType.TEMPORARY_CUSTOMER.getType()) {
   holder.tag.setVisibility(View.VISIBLE);
   holder.tag.setText(mContext.getString(R.string.tag_temp));
   holder.tag.setTextColor(mContext.getResources().getColor(R.color.customer_temp_txt));
   holder.tag.setBackground(mContext.getResources().getDrawable(R.drawable.bg_solid_quote_type_inner_temp));
  } else if (mSearchCustomEntities.get(position).type == CustomerType.COLLECTIVE_UNIT.getType()) {
   holder.tag.setVisibility(View.VISIBLE);
   holder.tag.setText(mContext.getString(R.string.tag_unit));
   holder.tag.setTextColor(mContext.getResources().getColor(R.color.customer_unit_txt));
   holder.tag.setBackground(mContext.getResources().getDrawable(R.drawable.bg_solid_quote_type_inner_unit));
  } else if (mSearchCustomEntities.get(position).type == CustomerType.OUTER_MOTORCADE.getType()) {
   holder.tag.setVisibility(View.VISIBLE);
   holder.tag.setText(mContext.getString(R.string.tag_car));
   holder.tag.setTextColor(mContext.getResources().getColor(R.color.customer_car_txt));
   holder.tag.setBackground(mContext.getResources().getDrawable(R.drawable.bg_solid_quote_type_inner_car));
  } else {
   holder.tag.setVisibility(View.GONE);
  }

return convertView;
 }

@Override
 public Filter getFilter() {
  if (mFilter == null) {
   mFilter = new ArrayFilter();
  }
  return mFilter;
 }
  private class ViewHolder {
  TextView tag;
  TextView name;
  TextView phone;
 }

自定义 过滤器

private class ArrayFilter extends Filter {

@Override
  protected FilterResults performFiltering(CharSequence prefix) {
   FilterResults results = new FilterResults();
   String prefixString = prefix.toString();

//筛选部分

XbcClient.getCustomList(prefixString, new EntitiesObserver<SearchCustomEntity>() {
    @Override
    protected void onGot(List<SearchCustomEntity> entities, String msg, int errCode) {
     if (entities != null && entities.size() > 0) {
      mSearchCustomEntities.clear();
      mSearchCustomEntities.addAll(entities);
      mSearchAdapter.notifyDataSetChanged();
     }else{
      if (mSearchCustomEntities!=null & mSearchCustomEntities.size()>0) {
       mSearchCustomEntities.clear();
       mSearchAdapter.notifyDataSetInvalidated();
      }
     }
    }
   });

results.values = mSearchCustomEntities;
   results.count = mSearchCustomEntities.size();
   return results;
  }

来源：https://blog.csdn.net/qq_35892584/article/details/107781526