Android输入框实时模糊搜索

绝地灬酷狼 2023-03-05 03:10 29阅读 0赞

### 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

![模糊搜索效果][2020080410205258.gif_pic_center]

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  访问接口
      
                    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;
                }

[2020080410205258.gif_pic_center]: /images/20230208/d5ffc63e3da04098beec17cf1a777fb9.png