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Android输入框实时模糊搜索效果的示例代码

2020年08月08日  | 移动技术网移动技术  | 我要评论

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

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;
   }

总结

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