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呐喊教程。

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