自定义listview，带按钮，多选框，处理item事件

产品中要用到这个效果：listitem中带多选框，用来删除；有按钮，处理相应事件；item的click处理跳转。同事说这个设计操作起来很二，有点反社会，再加个图片和可以展开就反人类了。不管怎样，产品说了，我们就得做。

思路：item上有控件，就不能使item失去焦点，因此，各种button，checkbox就不能去获取焦点，但是可以click。其实主要就这些，其他也没多少东西。

1、首先贴个效果图，全选/取消全选，删除，item的单击，checkbox的单击，button的单击：

2、代码部分：

MainActivity.java

package com.ttdevs.lcb;

import java.util.LinkedList;

import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.CheckBox;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener2;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import com.ttdevs.lcb.CustomAdapter.ViewHolder;

public class MainActivity extends Activity implements OnClickListener, OnItemClickListener,
		OnRefreshListener2<ListView> {

	private LinkedList<ItemInfo> list;
	private CustomAdapter adapter;

	private PullToRefreshListView mPullRefreshListView;
	private ListView actualListView;
	
	private CheckBox cbSelectAll ;

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

		cbSelectAll = (CheckBox) findViewById(R.id.cbSelectAll);
		
		
		mPullRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_refresh_list);
		mPullRefreshListView.setMode(Mode.BOTH);
		mPullRefreshListView.setOnRefreshListener(this);
		
		actualListView = mPullRefreshListView.getRefreshableView();
		// Need to use the Actual ListView when registering for Context Menu
		registerForContextMenu(actualListView);

		list = new LinkedList<ItemInfo>();
		adapter = new CustomAdapter(getApplicationContext(), list);
		
		initData(list);
		
		actualListView.setAdapter(adapter);
		actualListView.setOnItemClickListener(this);
	}

	private void initData(LinkedList<ItemInfo> list) {
		for (int i = 0; i <= 20; i++) {
			ItemInfo info = new ItemInfo();
			info.setId(i);
			info.setContent("这是第 " + i + " 条记录");
			list.add(info);
			adapter.getSelect().add(false);
			info = null;
		}
	}

	@Override
	public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
		ViewHolder holder = adapter.new ViewHolder();
		holder.tvItemID = (TextView) view.findViewById(R.id.tvItemID);
		holder.tvContent = (TextView) view.findViewById(R.id.tvContent);
		// holder.cbSelect = (CheckBox) view.findViewById(R.id.cbSelect);
		// holder.btClick = (Button) view.findViewById(R.id.btClick);

		ItemInfo itemInfo = list.get(position);
		itemInfo.setId(Integer.parseInt(holder.tvItemID.getText().toString()));
		itemInfo.setContent(holder.tvContent.getText().toString());

		Intent intent = new Intent(this, InfoActivity.class);
		intent.putExtra("itemInfo", itemInfo);
		startActivity(intent);

	}

	@Override
	public void onClick(View view) {
		switch (view.getId()) {
		case R.id.btDelete:
			for (int i = 0; i < adapter.getSelect().size(); ) {
				System.out.println(i+"|" + adapter.getSelect().get(i));
				if(adapter.getSelect().get(i)){
					adapter.getSelect().remove(i);
					list.remove(i);
				} else {
					i++;
				}
			}
			adapter.notifyDataSetChanged();
			cbSelectAll.setChecked(false);
			break;
		case R.id.cbSelectAll:
			boolean flag = cbSelectAll.isChecked();
			for (int i = 0; i < adapter.getSelect().size(); i++) {
				adapter.getSelect().set(i, flag);
			}
			adapter.notifyDataSetChanged();
			break;

		default:
			break;
		}
		
	}
	
	@Override
	public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
		Toast.makeText(getApplicationContext(), "下拉刷新", Toast.LENGTH_LONG).show();
		new GetLastTask().execute();
	}

	@Override
	public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
		Toast.makeText(getApplicationContext(), "上拉获取更多", Toast.LENGTH_LONG).show();
		new GetFirstTask().execute();
	}

	private class GetFirstTask extends AsyncTask<Void, Void, ItemInfo> {

		@Override
		protected ItemInfo doInBackground(Void... params) {
			try {
				Thread.sleep(1000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			ItemInfo info = new ItemInfo();
			info.setId((int) (System.currentTimeMillis() % 1000000));
			info.setContent("last:" + String.valueOf(System.currentTimeMillis()));
			return info;
		}

		@Override
		protected void onPostExecute(ItemInfo result) {
			list.addLast(result);
			adapter.getSelect().addLast(false);
			adapter.notifyDataSetChanged();
			// TODO 二选一？
			mPullRefreshListView.onRefreshComplete();

			super.onPostExecute(result);
		}
	}

	private class GetLastTask extends AsyncTask<Void, Void, ItemInfo> {

		@Override
		protected ItemInfo doInBackground(Void... params) {
			try {
				Thread.sleep(1000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			ItemInfo info = new ItemInfo();
			info.setId((int) (System.currentTimeMillis() % 1000000));
			info.setContent("last:" + String.valueOf(System.currentTimeMillis()));
			return info;
		}

		@Override
		protected void onPostExecute(ItemInfo result) {
			list.addFirst(result);
			adapter.getSelect().addFirst(false);
			adapter.notifyDataSetChanged();

			mPullRefreshListView.onRefreshComplete();

			super.onPostExecute(result);
		}
	}
}

CustomAdapter.java，这个是自定义的adapter，实现主要的逻辑：

package com.ttdevs.lcb;

import java.util.LinkedList;

import android.content.Context;
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.TextView;
import android.widget.Toast;

public class CustomAdapter extends BaseAdapter {

	private final LinkedList<Boolean> selected = new LinkedList<Boolean>();

	private Context context;
	private LayoutInflater inflater;
	private LinkedList<ItemInfo> list;

	public CustomAdapter(Context context, LinkedList<ItemInfo> list) {
		this.context = context;
		this.inflater = LayoutInflater.from(context);
		this.list = list;
	}

	public LinkedList<Boolean> getSelect() {
		return selected;
	}

	@Override
	public View getView(final int position, View convertView, ViewGroup parent) {
		ViewHolder holder = null;
		if (convertView == null) {
			convertView = inflater.inflate(R.layout.listview_item, null);

			holder = new ViewHolder();
			holder.cbSelect = (CheckBox) convertView.findViewById(R.id.cbSelect);
			holder.tvContent = (TextView) convertView.findViewById(R.id.tvContent);
			holder.tvItemID = (TextView) convertView.findViewById(R.id.tvItemID);
			holder.btClick = (Button) convertView.findViewById(R.id.btClick);
			convertView.setTag(holder);
		} else {
			holder = (ViewHolder) convertView.getTag();
		}

		final ItemInfo itemInfo = list.get(position);
		holder.tvItemID.setText(String.valueOf(itemInfo.getId()));
		holder.tvContent.setText(itemInfo.getContent());

		holder.cbSelect.setChecked(selected.get(position));
		holder.cbSelect.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				System.out.println("selected set position:" + position);
				selected.set(position, !selected.get(position));// 将CheckBox的选中状况记录下来
				for (int i = 0; i < selected.size(); i++) {
					System.out.println("selected " + i + ":" + selected.get(i));
				}

				// notifyDataSetChanged();
			}
		});
		holder.btClick.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				String value = String.valueOf(position) + "|" + itemInfo.getId() + "|" + itemInfo.getContent();
				Toast.makeText(context, value, Toast.LENGTH_SHORT).show();
			}
		});

		return convertView;
	}

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

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

	@Override
	public long getItemId(int position) {
		return position;
	}
	
	public class ViewHolder {
		public CheckBox cbSelect;
		public TextView tvContent;
		public TextView tvItemID;
		public Button btClick;
	}
}

ItemInfo.java，一个传递数据的实体类：

package com.ttdevs.lcb;

import java.io.Serializable;

public class ItemInfo implements Serializable {

	private static final long serialVersionUID = 6287420905418813028L;
	
	private int id;
	private String content;

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getContent() {
		return content;
	}

	public void setContent(String content) {
		this.content = content;
	}
}

跳转结果页，看自己的业务了：

package com.ttdevs.lcb;

import android.app.Activity;
import android.os.Bundle;

public class InfoActivity extends Activity {

	private ItemInfo info;

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

		// intent.putExtra("itemInfo", itemInfo);
		info = (ItemInfo) getIntent().getExtras().get("itemInfo");
		
		System.out.println(info.getId() + "||" + info.getContent());
	}
}

布局文件：

activity_main.xml

<?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="match_parent" >

    <LinearLayout
        android:id="@+id/llSelectAll"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:orientation="vertical" >

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:orientation="horizontal" >

            <CheckBox
                android:id="@+id/cbSelectAll"
                android:layout_width="28dp"
                android:layout_height="28dp"
                android:onClick="onClick"
                android:layout_alignParentLeft="true"
                android:layout_centerVertical="true" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:layout_marginLeft="8dp"
                android:layout_toRightOf="@+id/cbSelectAll"
                android:text="全选" />

            <Button
                android:id="@+id/btDelete"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true"
                android:layout_centerVertical="true"
                android:onClick="onClick"
                android:text="delete" />
        </RelativeLayout>

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="2dp"
            android:background="@android:color/holo_blue_dark" />
    </LinearLayout>

    <com.handmark.pulltorefresh.library.PullToRefreshListView
        android:id="@+id/pull_refresh_list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/llSelectAll"
        android:cacheColorHint="#00000000"
        android:divider="#19000000"
        android:dividerHeight="4dp"
        android:fadingEdge="none"
        android:fastScrollEnabled="false"
        android:footerDividersEnabled="false"
        android:headerDividersEnabled="false"
        android:smoothScrollbar="true" />

</RelativeLayout>

listview的item，注意两个属性：clickable和focusable

<?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="match_parent"
    android:minHeight="30dip"
    android:paddingLeft="6dp"
    android:paddingRight="6dp"
    android:paddingTop="4dp" >

    <CheckBox
        android:id="@+id/cbSelect"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"
        android:clickable="true"
        android:focusable="false" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_toLeftOf="@+id/btClick"
        android:layout_toRightOf="@+id/cbSelect"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/tvContent"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="@android:color/black"
            android:text="content" />

        <TextView
            android:id="@+id/tvItemID"
            android:textColor="@android:color/black"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="id" />
    </LinearLayout>

    <Button
        android:id="@+id/btClick"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:clickable="true"
        android:focusable="false"
        android:text="click" />

</RelativeLayout>

3、这里用到了一个下拉刷新的第三方库 com.handmark.pulltorefresh.library，这个在github上有的：

Demo：下载

Pulltorefresh：csdn下载，github下载

先导入pulltorefresh library，然后再运行demo

4、有很多改进的地方，欢迎吐槽