Checkbox的多选简单实现(-)

• 需要的布局文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    tools:context="com.example.administrator.morechoose.MainActivity">

    <RelativeLayout
        android:id="@+id/rr_days"
        android:layout_width="match_parent"
        android:layout_height="55dp"
        android:gravity="center_vertical">

        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:text="日期选择"
            android:textSize="18sp"/>

        <TextView
            android:id="@+id/tv_add"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentRight="true"
            android:layout_marginRight="18dp"
            android:gravity="center"
            android:text="确定"
            android:textSize="15sp"/>
    </RelativeLayout>

    <View
        android:id="@+id/view"
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:layout_below="@+id/rr_days"
        android:background="#dad4d4"/>

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/view"
        android:layout_marginRight="8dp"
        />
</RelativeLayout>

• 代码实现

package com.example.administrator.morechoose;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import adapter.DayAdapter;
import butterknife.ButterKnife;
import butterknife.InjectView;

public class MainActivity extends Activity {

    @InjectView(R.id.listView)
    ListView mListView;
    @InjectView(R.id.tv_add)
    TextView mTvAdd;
    private List<String> dayList;
    private DayAdapter adapter;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.inject(this);
        init();
        mTvAdd.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //将选择的日期toast
                Toast.makeText(MainActivity.this, "选择的日期" + adapter.checkList, Toast.LENGTH_SHORT).show();
            }
        });

    }

    private void init() {
        //初始化数据
        String[] days = {"周一", "周二", "周三", "周四", "周五", "周六", "周日"};
        //将数组转化成集合的形式
        List list = Arrays.asList(days);
        dayList = new ArrayList(list);
        adapter = new DayAdapter(this, dayList);
        mListView.setAdapter(adapter);
    }
}

• 所需要的适配器

package adapter;

import android.content.Context;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.TextView;

import com.example.administrator.morechoose.R;

import java.util.ArrayList;
import java.util.List;

/**
 * CheckBox 的多选
 */
public class DayAdapter extends BaseAdapter {
    private Context mContext;
    private List<String> mList;

    public List<String> checkList = new ArrayList<String>();

    public DayAdapter(Context context, List<String> list) {
        mContext = context;
        mList = list;
    }

    @Override
    public int getCount() {
        return mList.size();
    }

    @Override
    public Object getItem(int position) {
        return mList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        final String items = mList.get(position);
        ViewHolder holder = null;
        if (convertView == null) {
            holder = new ViewHolder();
            convertView = View.inflate(mContext, R.layout.item_list, null);
            holder.mName = (TextView) convertView.findViewById(R.id.name);
            holder.mCheckbox = (CheckBox) convertView.findViewById(R.id.checkbox);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        holder.mName.setText(items);
        holder.mCheckbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (isChecked) {
                    checkList.add(items);
                    Log.i("选择的item", checkList.toString());
                } else {
                    checkList.remove(items);
                    Log.i("删除的item", checkList.toString());
                }
            }
        });
        return convertView;
    }

    class ViewHolder {
        TextView mName;
        CheckBox mCheckbox;
    }
}

• 效果图