[UI]Android列表ListView使用

一、效果图：

实现ListView和CheckBox的组合，全选，反选，取消的功能

二、程序结构：

三、编码实现:

1.listitem布局 list_item.xml：

<?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="wrap_content"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/list_item_text"
        android:layout_width="wrap_content"
        android:layout_height="60dp"
        android:layout_weight="1"
        android:gravity="center" />

    <CheckBox
        android:id="@+id/list_item_checkbox"
        android:layout_width="wrap_content"
        android:layout_height="60dp"
        android:clickable="false"
        android:focusable="false"
        android:gravity="center" />
    <!-- android:focusable="false" 让checkbox在listview中失去焦点的控制权 -->

</LinearLayout>

2.适配器ListCheckAdapter.java

package com.example.new_list_check;

import java.util.List;

import android.content.Context;
import android.provider.Browser.BookmarkColumns;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.TextView;

public class ListCheckAdapter extends BaseAdapter {
	private List<String> lists;// list item条目
	private static List<Boolean> checkFlags;// checkbox 选中状态
	private Context context;

	public ListCheckAdapter(List<String> lists, List<Boolean> checkFlags,
			Context context) {
		this.lists = lists;
		this.checkFlags = checkFlags;
		this.context = context;
	}

	public static void setCheckFlags(List<Boolean> checkFlag) {
		checkFlags = checkFlag;
	}

	public int getCount() {
		return lists.size();
	}

	public Object getItem(int position) {
		return lists.get(position);
	}

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

	public View getView(int position, View convertView, ViewGroup parent) {
		ViewHolder vb = null;
		if (convertView == null) {
			vb = new ViewHolder();
			convertView = LayoutInflater.from(context).inflate(
					R.layout.list_item, null);
			vb.tv = (TextView) convertView.findViewById(R.id.list_item_text);
			vb.cb = (CheckBox) convertView
					.findViewById(R.id.list_item_checkbox);
			convertView.setTag(vb);
		} else {
			vb = (ViewHolder) convertView.getTag();
		}
		vb.tv.setText(lists.get(position));
		vb.cb.setChecked(checkFlags.get(position));
		vb.cb.setClickable(checkFlags.get(position));
		return convertView;
	}

}

3.MainActivity.java

package com.example.new_list_check;

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

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {
	private List<String> lists = new ArrayList<String>();// list item条目
	private List<Boolean> checkFlags = new ArrayList<Boolean>();// checkbox 选中状态
	private ListView lv;
	private ListCheckAdapter lca;
	private TextView textStatusInfo;
	private Button buttonAllSelect, buttonUnSelect, buttonCancel;
	private int selectNum = 0;

	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		getWindow().requestFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.activity_main);
		lv = (ListView) findViewById(R.id.main_listview);
		textStatusInfo = (TextView) findViewById(R.id.main_textview_status_info);
		buttonAllSelect = (Button) findViewById(R.id.main_button_allselect);
		buttonUnSelect = (Button) findViewById(R.id.main_button_unallselect);
		buttonCancel = (Button) findViewById(R.id.main_button_cancel);
		ButtonOnClick bo = new ButtonOnClick();
		buttonAllSelect.setOnClickListener(bo);
		buttonUnSelect.setOnClickListener(bo);
		buttonCancel.setOnClickListener(bo);
		listInit();
	}

	private void listInit() {
		for (int i = 0; i < 50; i++) {
			lists.add("test" + i);
			checkFlags.add(false);
		}
		lv.setOnItemClickListener(new ListOnItemClickListener());
		lca = new ListCheckAdapter(lists, checkFlags, this);
		lv.setAdapter(lca);
	}

	class ListOnItemClickListener implements OnItemClickListener {
		// list点击事件
		public void onItemClick(AdapterView<?> parent, View view, int position,
				long id) {
			// Toast.makeText(MainActivity.this, position + "", 0).show();
			ViewHolder holder = (ViewHolder) view.getTag();
			holder.cb.toggle();// 状态变成和当前相反的状态
			boolean b = holder.cb.isChecked();
			checkFlags.set(position, b);
			ListCheckAdapter.setCheckFlags(checkFlags);
			lca.notifyDataSetChanged();
			if (b) {
				selectNum++;
			} else {
				selectNum--;
			}
			textChange();
		}
	}

	private void textChange() {
		this.textStatusInfo.setText("已选中" + selectNum + "项");
	}

	class ButtonOnClick implements OnClickListener {
		public void onClick(View v) {
			switch (v.getId()) {
			case R.id.main_button_allselect:
				allSelect();
				break;
			case R.id.main_button_unallselect:
				unallselect();
				break;
			case R.id.main_button_cancel:
				cancel();
				break;
			default:
				break;
			}
			lca.notifyDataSetChanged();
		}

		private void allSelect() {// 全选
			for (int i = 0; i < checkFlags.size(); i++) {
				checkFlags.set(i, true);
			}
			selectNum = checkFlags.size();
			textChange();
		}

		private void unallselect() {// 反选
			int isTrueNum = 0;
			for (int i = 0; i < checkFlags.size(); i++) {
				boolean b = checkFlags.get(i);
				if (b == false) {
					isTrueNum++;
				}
				checkFlags.set(i, !b);
			}
			selectNum = isTrueNum;
			textChange();
		}

		private void cancel() {// 取消选中
			for (int i = 0; i < checkFlags.size(); i++) {
				checkFlags.set(i, false);
			}
			selectNum = 0;
			textChange();
		}
	}

}

对于listview的一些操作吧，不算复杂。

源码：http://download.youkuaiyun.com/detail/owuguanfengyue123/8173251