Android RecycleView使用（CheckBox全选、反选、单选）

概述本文实例为大家分享了CheckBox全选、反选、单选的具体代码，供大家参考，具体内容如下

本文实例为大家分享了CheckBox全选、反选、单选的具体代码，供大家参考，具体内容如下

MainActiivity

package com.bwIE.day06;import androID.support.v7.app.AppCompatActivity;import androID.os.Bundle;import androID.support.v7.Widget.linearlayoutmanager;import androID.support.v7.Widget.RecyclerVIEw;import androID.vIEw.VIEw;import com.bwIE.day06.myadapter.MyAdapter;public class MainActivity extends AppCompatActivity {  private MyAdapter myAdapter;  private linearlayoutmanager linearlayoutmanager;  @OverrIDe  protected voID onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentVIEw(R.layout.activity_main);    //初始化控件    RecyclerVIEw recyclerVIEw = (RecyclerVIEw) findVIEwByID(R.ID.recyclervIEw);    //在加载数据之前配置    linearlayoutmanager = new linearlayoutmanager(this);    recyclerVIEw.setLayoutManager(linearlayoutmanager);    //创建一个适配器    myAdapter = new MyAdapter();    recyclerVIEw.setAdapter(myAdapter);  }  public voID btnAll(VIEw vIEw) {    myAdapter.All();  }  public voID btnner(VIEw vIEw) {    myAdapter.neverall();  }}

Adapter

package com.bwIE.day06.myadapter;import androID.support.v7.Widget.RecyclerVIEw;import androID.vIEw.LayoutInflater;import androID.vIEw.VIEw;import androID.vIEw.VIEwGroup;import androID.Widget.CheckBox;import androID.Widget.TextVIEw;import com.bwIE.day06.R;import java.util.ArrayList;import java.util.HashMap;import java.util.Map;import java.util.Set;public class MyAdapter extends RecyclerVIEw.Adapter<MyAdapter.MyVIEwHolder> {  //这个是checkBox的Hashmap集合  private final HashMap<Integer,Boolean> map;  //这个是数据集合  private final ArrayList<String> List;  public MyAdapter() {    map = new HashMap<>();    List = new ArrayList<>();    for (int i = 0; i < 30; i++) {      //添加30条数据      List.add("这是条目" + i);      map.put(i,false);    }  }  /**   * 全选   */  public voID All() {    Set<Map.Entry<Integer,Boolean>> entrIEs = map.entrySet();    boolean shouldall = false;    for (Map.Entry<Integer,Boolean> entry : entrIEs) {      Boolean value = entry.getValue();      if (!value) {        shouldall = true;        break;      }    }    for (Map.Entry<Integer,Boolean> entry : entrIEs) {      entry.setValue(shouldall);    }    notifyDataSetChanged();  }  /**   * 反选   */  public voID neverall() {    Set<Map.Entry<Integer,Boolean>> entrIEs = map.entrySet();    for (Map.Entry<Integer,Boolean> entry : entrIEs) {      entry.setValue(!entry.getValue());    }    notifyDataSetChanged();  }  /**   * 单选   *   * @param postion   */  public voID singlesel(int postion) {    Set<Map.Entry<Integer,Boolean> entry : entrIEs) {      entry.setValue(false);    }    map.put(postion,true);    notifyDataSetChanged();  }  //这里主要初始化布局控件  @OverrIDe  public MyVIEwHolder onCreateVIEwHolder(VIEwGroup parent,int vIEwType) {    RecyclerVIEw.LayoutManager layoutManager = ((RecyclerVIEw) parent).getLayoutManager();    //初始化布局文件    VIEw inflate = LayoutInflater.from(parent.getContext()).inflate(R.layout.check,parent,false);    return new MyVIEwHolder(inflate);  }  @OverrIDe  public voID onBindVIEwHolder(final MyVIEwHolder holder,final int position) {    //放入集合中的值    holder.txt.setText(List.get(position));    holder.checkBox.setChecked(map.get(position));    holder.checkBox.setonClickListener(new VIEw.OnClickListener() {      @OverrIDe      public voID onClick(VIEw v) {        map.put(position,!map.get(position));        //刷新适配器        notifyDataSetChanged();        //单选//        singlesel(position);      }    });  }  @OverrIDe  public int getItemCount() {    return List.size();  }  public class MyVIEwHolder extends RecyclerVIEw.VIEwHolder {    VIEw itemVIEw;    private TextVIEw txt;    private CheckBox checkBox;    //初始化控件    public MyVIEwHolder(VIEw itemVIEw) {      super(itemVIEw);      this.itemVIEw = itemVIEw;      txt = (TextVIEw) itemVIEw.findVIEwByID(R.ID.txt);      checkBox = (CheckBox) itemVIEw.findVIEwByID(R.ID.cBox);    }  }}

main.xml

<linearLayout  androID:layout_wIDth="match_parent"  androID:layout_height="wrap_content"  androID:orIEntation="horizontal">  <button    androID:onClick="btnAll"    androID:layout_wIDth="wrap_content"    androID:layout_height="wrap_content"    androID:layout_weight="1"    androID:text="全选" />  <button    androID:layout_wIDth="wrap_content"    androID:layout_height="wrap_content"    androID:layout_weight="1"    androID:text="反选"    androID:onClick="btnner"/></linearLayout><androID.support.v7.Widget.RecyclerVIEw  androID:ID="@+ID/recyclervIEw"  androID:layout_wIDth="match_parent"  androID:layout_height="match_parent"></androID.support.v7.Widget.RecyclerVIEw>

Check.xml

<CheckBox  androID:ID="@+ID/cBox"  androID:layout_wIDth="wrap_content"  androID:layout_height="wrap_content" /><TextVIEw  androID:text="dfdfdfdf"  androID:ID="@+ID/txt"  androID:layout_wIDth="wrap_content"  androID:layout_height="wrap_content"  androID:textSize="20sp" />

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