Android ListView 使用checkbox 实现 单选、多选操作

项目开发中经常会遇到 ListView +CheckBox 结合使用的场景，比如 手机应用程序管理程序 中的卸载功能，需要让用户去 勾选 要卸载的 应用程序，点击 即可进行批量卸载。等等这样的例子很多，这里不一一列举了。直接看要实现的效果吧

未编辑状态

编辑状态

编辑完成

下面是源码

主界面 布局

ListView item 布局

MainActivity.java

package com.example.listcheckbox;

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

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.RelativeLayout.LayoutParams;
import android.widget.TextView;

public class MainActivity extends Activity implements OnClickListener {
	List mList = new ArrayList();
	private AppInfoAdapter mAdapter;
	private boolean isOP;
	private Button bt_edit;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		buildAppData();
		findView();
	}

	private void findView() {
		bt_edit = (Button) findViewById(R.id.bt_edit);
		ListView mListView = (ListView) findViewById(R.id.mListView);

		mAdapter = new AppInfoAdapter(getApplicationContext());
		mListView.setAdapter(mAdapter);

		bt_edit.setOnClickListener(this);
	}

	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		case R.id.bt_edit:

			isOP = !isOP;

			removeCheckItem();

			if (isOP) {
				bt_edit.setText("完成");
			} else {
				bt_edit.setText("编辑");
			}
			mAdapter.setOP(isOP);
			mAdapter.notifyDataSetChanged();

			break;

		default:
			break;
		}
	}

	private void removeCheckItem() {

		List checkedList = new ArrayList();
		List unCheckedList = new ArrayList();
		if ("完成".equals(bt_edit.getText())) {
			for (AppInfo ai : mList) {
				if (ai.isChecked()) {
					checkedList.add(ai);
				} else {
					unCheckedList.add(ai);
				}
			}

			System.out.println("check list:" + checkedList.size());
			System.out.println("uncheck list:" + unCheckedList.size());

			mList.clear();
			mList.addAll(unCheckedList);

			//同步数据库,物理删除
//			syncFavoriteTable(checkedList);
		}
	}

	private void buildAppData() {

		for (int i = 0; i < 20; i++) {
			AppInfo ai = new AppInfo();
			ai.setAppName("QQ2013  " + i);
			ai.setAppProducer("腾讯科技 " + i);
			ai.setAppDownload(150000000 + "" + i + " 次");
			ai.setAppSize("14." + i + " M");

			mList.add(ai);
		}
	}

	private class AppInfoAdapter extends BaseAdapter {
		private Context ctx;
		private LayoutInflater inflater;
		private boolean isOP;

		public AppInfoAdapter(Context ctx) {
			this.ctx = ctx;

			inflater = (LayoutInflater) ctx
					.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		}

		public void setOP(boolean isOP) {
			this.isOP = isOP;
		}

		@Override
		public int getCount() {

			return mList == null ? 0 : mList.size();
		}

		@Override
		public Object getItem(int position) {
			// TODO Auto-generated method stub
			return mList.get(position);
		}

		@Override
		public long getItemId(int position) {
			// TODO Auto-generated method stub
			return position;
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {

			View view;
			ViewHolder holder;
			if (convertView == null) {
				view = inflater.inflate(R.layout.app_item, null);

				holder = new ViewHolder();

				holder.cb_op = (CheckBox) view.findViewById(R.id.cb_op);
				holder.rl_content = (RelativeLayout) view
						.findViewById(R.id.rl_content);
				holder.iv_app_icon = (ImageView) view
						.findViewById(R.id.iv_app_icon);
				holder.tv_appName = (TextView) view
						.findViewById(R.id.tv_appName);
				holder.tv_app_size = (TextView) view
						.findViewById(R.id.tv_app_size);
				holder.tv_app_producer = (TextView) view
						.findViewById(R.id.tv_app_producer);
				holder.tv_app_download = (TextView) view
						.findViewById(R.id.tv_app_download);

				view.setTag(holder);
			} else {
				view = convertView;
				holder = (ViewHolder) view.getTag();
			}

			if (isOP) {
				holder.cb_op.setVisibility(View.VISIBLE);

				RelativeLayout.LayoutParams lps = (LayoutParams) holder.rl_content
						.getLayoutParams();
				lps.leftMargin = ctx.getResources().getDimensionPixelSize(
						R.dimen.app_item_content_margin);

			} else {
				holder.cb_op.setVisibility(View.GONE);
				RelativeLayout.LayoutParams lps = (LayoutParams) holder.rl_content
						.getLayoutParams();
				lps.leftMargin = 0;
			}

			final AppInfo ai = mList.get(position);

			if (ai.isChecked()) {
				holder.cb_op.setChecked(true);
			} else {
				holder.cb_op.setChecked(false);
			}

			holder.tv_appName.setText(ai.getAppName());
			holder.tv_app_size.setText(ai.getAppSize());
			holder.tv_app_producer.setText(ai.getAppProducer());
			holder.tv_app_download.setText(ai.getAppDownload());

			holder.cb_op.setOnClickListener(new OnClickListener() {

				@Override
				public void onClick(View v) {
					boolean isCheck = ai.isChecked();
					ai.setChecked(!isCheck);
				}
			});

			return view;
		}
	}

	static class ViewHolder {
		CheckBox cb_op;
		RelativeLayout rl_content;
		ImageView iv_app_icon;
		TextView tv_appName;
		TextView tv_app_size;
		TextView tv_app_producer;
		TextView tv_app_download;
	}

}

这里没有用一个 Map来保存 被选中的item id，而是直接在 AppInfo中定义一个 isChecked 变量来记录，个人觉得这么做更简单一点。

工程源码下载

-----------------------------------------------------------------------------------------------------------------------------------------------------------------

如果想要 点击 item的话，也能选中 ，只需要稍作修改即可

给CheckBox 加上以下三个属性：

android:focusable="false"    
        android:focusableInTouchMode="false"    
        android:clickable="false"  

由于checkbox的点击事件优先级比listview的高，所以要添加android:focusable="false"属性，使得checkbox初始的时候没有获取焦点。

另外这里是点击ListView的item控制checkbox的状态改变，也就是让item接收clik事件，所以需要加上android:focusableInTouchMode="false"这一属性。

然后给ListView注册 item点击事件即可

	private void findView() {
		bt_edit = (Button) findViewById(R.id.bt_edit);
		ListView mListView = (ListView) findViewById(R.id.mListView);

		mAdapter = new AppInfoAdapter(getApplicationContext());
		mListView.setAdapter(mAdapter);
		
		//设置点击事件
		mListView.setOnItemClickListener(this);

		bt_edit.setOnClickListener(this);
	}
	
	@Override
	public void onItemClick(AdapterView arg0, View arg1, int arg2, long arg3) {
		AppInfo ai = mList.get(arg2);
		boolean isCheck = ai.isChecked();
		ai.setChecked(!isCheck);
		
		//更新UI
		mAdapter.notifyDataSetChanged();
	}

OK，这样点击 item也可以选中了，整个代码我就不上传了，自己照着修改一下就好啦