可支持快速搜索筛选的Android自定义选择控件

android 自定义支持快速搜索筛选的选择控件使用方法，具体如下

项目中遇到选择控件选项过多，需要快速查找匹配的情况。
做了简单的demo，效果图如下：

源码地址：https://github.com/whieenz/searchselect

这个控件是由dialog+searchview+listview实现的。dialog用来承载选择控件，searchview实现输入，listview展示结果。设计概要图如下：

一、自定义dialog

dialog布局文件

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical">
  <linearlayout
    android:layout_width="wrap_content"
    android:layout_weight="1"
    android:background="@drawable/dialog_bg"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <relativelayout
      android:layout_width="match_parent"
      android:layout_height="50dp">
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginleft="20dp"
        android:layout_centervertical="true"
        android:textsize="18sp"
        android:textcolor="#000000"
        android:id="@+id/tv_dialog_select_title"/>
      <imagebutton
        android:layout_width="50dp"
        android:layout_height="match_parent"
        android:padding="8dp"
        android:layout_marginright="10dp"
        android:layout_centervertical="true"
        android:layout_alignparentright="true"
        android:scaletype="centerinside"
        android:background="@color/transparent"
        android:src="@drawable/im_search_back"
        android:id="@+id/btn_dialog_select_search"/>
    </relativelayout>
    <com.whieenz.searchselect.dialogsearchview
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:id="@+id/searchview"
      android:visibility="gone"/>
    <listview
      android:layout_width="match_parent"
      android:layout_height="0dp"
      android:layout_weight="1"
      android:orientation="vertical"
      android:id="@+id/listview"
      android:layout_gravity="center_horizontal" />
  </linearlayout>

  <linearlayout
    android:layout_width="match_parent"
    android:layout_height="80dp"
    android:gravity="center"
    android:background="@color/transparent">
    <imagebutton
      android:layout_width="40dp"
      android:layout_height="40dp"
      android:id="@+id/imb_dialog_select_close"
      android:scaletype="centerinside"
      android:src="@drawable/dialog_close"
      android:background="@color/transparent"/>
  </linearlayout>

</linearlayout>

dialog java文件

package com.whieenz.searchselect;

import android.app.activity;
import android.app.dialog;
import android.content.context;
import android.content.dialoginterface;
import android.util.displaymetrics;
import android.view.gravity;
import android.view.layoutinflater;
import android.view.view;
import android.view.viewgroup;
import android.view.window;
import android.view.windowmanager;
import android.widget.adapterview;
import android.widget.imagebutton;
import android.widget.listview;
import android.widget.textview;

import java.util.arraylist;
import java.util.list;


/**
 * created by whieenz on 2017/7/18.
 */

public class serachselectdialog extends dialog {

  public serachselectdialog(context context, int themeresid) {
    super(context, themeresid);
  }

  /**
   * 设置 dialog的大小
   * @param x 宽比例
   * @param y 高比例
   */
  public void setdialogwindowattr(double x, double y, activity activity){
    if (x<0||x>1||y<0||y>1){
      return;
    }
    window window = this.getwindow();
    windowmanager.layoutparams lp = window.getattributes();
    windowmanager manager = activity.getwindowmanager();
    displaymetrics outmetrics = new displaymetrics();
    manager.getdefaultdisplay().getmetrics(outmetrics);
    int width = outmetrics.widthpixels;
    int height = outmetrics.heightpixels;
    lp.gravity = gravity.center;
    lp.width = (int) (width * x);
    lp.height = (int) (height * y);
    this.getwindow().setattributes(lp);
  }


  public static class builder {
    private string title;
    private view contentview;
    private string positivebuttontext;
    private string negativebuttontext;
    private string singlebuttontext;
    private list<string> listdata;
    private view.onclicklistener positivebuttonclicklistener;
    private view.onclicklistener negativebuttonclicklistener;
    private view.onclicklistener singlebuttonclicklistener;

    private view layout;
    private context context;
    private serachselectdialog dialog;
    private onselectedlistiner selectedlistiner;

    listview listview;
    //searchview searchview ;
    dialogsearchview searchview;
    imagebutton searchbtn;
    imagebutton closebtn;
    textview titleview;
    private boolean state = false;

    public builder(context context) {
      //这里传入自定义的style，直接影响此dialog的显示效果。style具体实现见style.xml
      this.context = context;
      dialog = new serachselectdialog(context,r.style.selectdialog);
      layoutinflater inflater = (layoutinflater) context.getsystemservice(context.layout_inflater_service);
      layout = inflater.inflate(r.layout.dialog_select_search, null);
      listview = (listview)layout.findviewbyid(r.id.listview);
      //searchview = (searchview) layout.findviewbyid(r.id.searchview);
      searchview = (dialogsearchview) layout.findviewbyid(r.id.searchview);
      searchbtn = (imagebutton) layout.findviewbyid(r.id.btn_dialog_select_search);
      closebtn = (imagebutton) layout.findviewbyid(r.id.imb_dialog_select_close);
      titleview = (textview) layout.findviewbyid(r.id.tv_dialog_select_title);
      dialog.addcontentview(layout, new viewgroup.layoutparams(viewgroup.layoutparams.match_parent, viewgroup.layoutparams.wrap_content));
    }

    public builder settitle(string title) {
      this.title = title;
      return this;
    }

    public builder setcontentview(view v) {
      this.contentview = v;
      return this;
    }

    public void setlistdata(list<string> listdata) {
      this.listdata = listdata;
    }

    public builder setpositivebutton(string positivebuttontext, view.onclicklistener listener) {
      this.positivebuttontext = positivebuttontext;
      this.positivebuttonclicklistener = listener;
      return this;
    }

    public builder setnegativebutton(string negativebuttontext, view.onclicklistener listener) {
      this.negativebuttontext = negativebuttontext;
      this.negativebuttonclicklistener = listener;
      return this;
    }

    /**
     * 单按钮对话框和双按钮对话框的公共部分在这里设置
     */
    private serachselectdialog create() {
      titleview.settext(title);
      final searchselectadapter sa = new searchselectadapter(context,listdata);
      listview.setadapter(sa);
      listview.invalidate();
      searchbtn.setonclicklistener(new view.onclicklistener() {
        @override
        public void onclick(view view) {
          if (!state){
            searchview.setvisibility(view.visible);
            state = true;
          }else {
            searchview.setvisibility(view.gone);
            state = false;
          }
        }
      });
      searchview.setdialogsearchviewlistener(new dialogsearchview.dialogsearchviewlistener() {

        @override
        public boolean onquerytextchange(string text) {
          updatelayout(searchitem(text));
          return false;
        }
      });
      closebtn.setonclicklistener(new view.onclicklistener() {
        @override
        public void onclick(view v) {
          dialog.dismiss();
        }
      });
      dialog.setondismisslistener(new dialoginterface.ondismisslistener() {
        @override
        public void ondismiss(dialoginterface dialog) {

        }
      });

      listview.setonitemclicklistener(new adapterview.onitemclicklistener() {
        @override
        public void onitemclick(adapterview<?> parent, view view, int position, long id) {
          selectedlistiner.onselected(sa.getitem(position));
          dialog.dismiss();
        }
      });
      dialog.setcontentview(layout);
      //用户可以点击手机back键取消对话框显示
      dialog.setcancelable(true);
      //用户不能通过点击对话框之外的地方取消对话框显示
      dialog.setcanceledontouchoutside(false);
      return dialog;

    }
    public list<string> searchitem(string name) {
      arraylist<string> msearchlist = new arraylist<string>();
      for (int i = 0; i < listdata.size(); i++) {
        int index = listdata.get(i).indexof(name);
        // 存在匹配的数据
        if (index != -1) {
          msearchlist.add(listdata.get(i));
        }
      }
      return msearchlist;
    }

    public void updatelayout(list<string> newlist) {
      final searchselectadapter sa = new searchselectadapter(context,newlist);
      listview.setadapter(sa);
      listview.setonitemclicklistener(new adapterview.onitemclicklistener() {
        @override
        public void onitemclick(adapterview<?> parent, view view, int position, long id) {
          selectedlistiner.onselected(sa.getitem(position));
          dialog.dismiss();
        }
      });
    }

    public void setselectedlistiner(serachselectdialog.builder.onselectedlistiner selectedlistiner) {
      this.selectedlistiner = selectedlistiner;
    }

    public static abstract class onselectedlistiner{
      public abstract void onselected(string string);
    }

    public serachselectdialog show() {
      create();
      dialog.show();
      return dialog;
    }
  }
}

二、自定义searchview

searchview 布局文件

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:gravity="center"
  android:background="#ffffff"
  android:layout_height="50dp">
    <linearlayout
      android:layout_width="match_parent"
      android:layout_height="35dp"
      android:orientation="horizontal"
      android:gravity="center_vertical"
      android:layout_marginleft="15dp"
      android:layout_marginright="15dp"
      android:background="@drawable/search_layout_bg">
      <imagebutton
        android:layout_width="20dp"
        android:layout_height="20dp"
        android:id="@+id/imb_search_search"
        android:layout_marginleft="15dp"
        android:scaletype="centerinside"
        android:src="@drawable/im_search_gray"
        android:background="#f0f0f0" />
      <edittext
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginleft="10dp"
        android:layout_marginright="15dp"
        android:id="@+id/et_search_text"
        android:layout_weight="1"
        android:lines="1"
        android:textsize="14sp"
        android:background="@null"
        android:hint="请输入搜索内容"/>

      <imagebutton
        android:layout_width="35dp"
        android:layout_height="35dp"
        android:padding="12.5dp"
        android:id="@+id/imb_search_clear"
        android:layout_marginright="20dp"
        android:src="@drawable/im_x"
        android:visibility="gone"
        android:scaletype="centerinside"
        android:background="#f0f0f0" />
    </linearlayout>

</linearlayout>

searchview java代码

package com.whieenz.searchselect;

import android.content.context;
import android.text.editable;
import android.text.textwatcher;
import android.util.attributeset;
import android.view.layoutinflater;
import android.view.view;
import android.widget.edittext;
import android.widget.imageview;
import android.widget.linearlayout;


/**
 * created by whieenz on 2017/7/19.
 */

public class dialogsearchview extends linearlayout implements view.onclicklistener {

  /**
   * 输入框 
   */
  private edittext etinput;

  /**
   * 删除键 
   */
  private imageview ivdelete;

  /**
   * 上下文对象 
   */
  private context mcontext;

  /**
   * 搜索回调接口 
   */
  private dialogsearchviewlistener mlistener;

  /**
   * 设置搜索回调接口 
   *
   * @param listener 监听者 
   */
  public void setdialogsearchviewlistener(dialogsearchviewlistener listener) {
    mlistener = listener;
  }

  public dialogsearchview(context context, attributeset attrs) {
    super(context, attrs);
    mcontext = context;
    layoutinflater.from(context).inflate(r.layout.view_search_layout, this);
    initviews();
  }

  private void initviews() {
    etinput = (edittext) findviewbyid(r.id.et_search_text);
    ivdelete = (imageview) findviewbyid(r.id.imb_search_clear);
    ivdelete.setonclicklistener(this);
    etinput.addtextchangedlistener(new editchangedlistener());
    etinput.setonclicklistener(this);

  }

  private class editchangedlistener implements textwatcher {
    @override
    public void beforetextchanged(charsequence charsequence, int i, int i2, int i3) {

    }
    @override
    public void ontextchanged(charsequence charsequence, int i, int i2, int i3) {
      if (!"".equals(charsequence.tostring())) {
        ivdelete.setvisibility(visible);
        //更新autocomplete数据
        if (mlistener != null) {
          mlistener.onquerytextchange(charsequence + "");
        }
      } else {
        ivdelete.setvisibility(gone);
      }

    }
    @override
    public void aftertextchanged(editable editable) {
    }
  }

  @override
  public void onclick(view view) {
    switch (view.getid()) {
      case r.id.imb_search_clear:
        etinput.settext("");
        if (mlistener != null) {
          mlistener.onquerytextchange("");
        }
        ivdelete.setvisibility(gone);
        break;
    }
  }
  /**
   * search view回调方法 
   */
  public interface dialogsearchviewlistener {
    boolean onquerytextchange(string text);
  }
} 

自定义listview adapter

listitem 布局文件

<?xml version="1.0" encoding="utf-8"?>
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="50dp"
  android:paddingleft="10dp"
  android:paddingtop="15dp"
  android:paddingbottom="15dp"
  android:orientation="horizontal">
  <textview
    android:id="@+id/tv_select_info"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:textsize="20sp"
    android:layout_centerinparent="true"
    android:gravity="center"
    android:lines="1"/>

</relativelayout>

adapter 文件

package com.whieenz.searchselect;

import android.content.context;
import android.view.layoutinflater;
import android.view.view;
import android.view.viewgroup;
import android.widget.baseadapter;
import android.widget.textview;


import java.util.list;


public class searchselectadapter extends baseadapter {
  private list<string> datas;
  private context context;
  private layoutinflater inflater;

  public searchselectadapter(context ctx, list<string> datas){
    this.context = ctx;
    this.datas = datas;
    this.inflater = layoutinflater.from(ctx);
  }
  @override
  public int getcount() {
    return datas.size();
  }

  @override
  public string getitem(int i) {
    return datas.get(i);
  }

  @override
  public long getitemid(int i) {
    return i;
  }

  @override
  public view getview(int i, view view, viewgroup viewgroup) {
    viewholder holder = null;
    if (view == null ) {
      view = inflater.inflate(r.layout.list_cell_select_single, null);
      holder = new viewholder(view);
      view.settag(holder);
    } else {
      holder = (viewholder) view.gettag();
    }

    holder.info.settext(datas.get(i));
    return view;
  }


  static class viewholder {
    textview info;
    public viewholder(view view) {
      info = view.findviewbyid(r.id.tv_select_info);
    }
  }

}

mainactivity 实现

布局文件

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:id="@+id/activity_main"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"
  android:padding="10dp"
  tools:context="com.whieenz.searchselect.mainactivity">

  <linearlayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margintop="150dp"
    android:orientation="horizontal">
    <textview
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:textsize="20sp"
      android:gravity="left"
      android:text="选择结果："
      />
    <textview
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:textsize="20sp"
      android:textcolor="#ff5c5c"
      android:id="@+id/tv_result" />
  </linearlayout>

  <button
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:layout_margintop="20dp"
    android:gravity="center"
    android:textsize="20sp"
    android:textcolor="#ffffff"
    android:background="@drawable/btn_bg"
    android:text="打开选择器"
    android:onclick="doselect"/>
</linearlayout>

java文件

package com.whieenz.searchselect;

import android.support.v7.app.appcompatactivity;
import android.os.bundle;
import android.view.view;
import android.widget.textview;

import java.util.arraylist;
import java.util.list;

public class mainactivity extends appcompatactivity {
 private list<string> mdatas;
 private textview textview;

 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_main);
  textview = (textview) findviewbyid(r.id.tv_result);
  initdata();
 }

 public void doselect(view view){
  serachselectdialog.builder alert = new serachselectdialog.builder(this);
  alert.setlistdata(mdatas);
  alert.settitle("请选择城市");
  alert.setselectedlistiner(new serachselectdialog.builder.onselectedlistiner() {
   @override
   public void onselected(string info) {
    textview.settext(info);
   }
  });
  serachselectdialog mdialog = alert.show();
  //设置dialog 尺寸
  mdialog.setdialogwindowattr(0.9,0.9,this);
 }
 /**
  * 初始化数据
  */
 private void initdata(){
  mdatas = new arraylist<>();
  string [] citys = {"武汉","北京","上海","深圳","兰州","成都","天津"};
  for (int i = 0; i < 10; i++) {
   for (int j = 0; j < citys.length; j++) {
    mdatas.add(citys[j]+i);
   }
  }
 }
}

其他配置

dialog style（样式）

  <style name="selectdialog" parent="@android:style/theme.dialog">
    <item name="android:windownotitle">true</item>//无标题
    <item name="android:windowbackground">@color/transparent</item>
  </style>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。