如何在ListView中添加CheckBox

package com.billy.demo

import java.util.ArrayList

import java.util.List

import android.app.ListActivity

import android.content.Context

import android.os.Bundle

import android.view.LayoutInflater

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 android.widget.CompoundButton.OnCheckedChangeListener

public class TestListViewAndCheckbox extends ListActivity {

/** Called when the activity is first created. */

Context context = null

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState)

setContentView(R.layout.main)

context = getApplicationContext()

setListAdapter(new MyListAdapter())

}

class MyListAdapter extends BaseAdapter{

String data[] = new String[]{"apple", "pear", "banana", "orange","apple", "pear", "banana", "orange","apple", "pear", "banana", "orange"}

List<Integer>checkPosition = new ArrayList<Integer>(data.length)

@Override

public int getCount() {

// TODO Auto-generated method stub

return data.length

}

@Override

public Object getItem(int position) {

// TODO Auto-generated method stub

return data[position]

}

@Override

public long getItemId(int position) {

// TODO Auto-generated method stub

return position

}

@Override

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

// TODO Auto-generated method stub

if (null == convertView){

LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE)

convertView = inflater.inflate(R.layout.list_item, parent, false)

}

TextView text = (TextView)convertView.findViewById(R.id.info)

final CheckBox checkbox = (CheckBox)convertView.findViewById(R.id.checkstatus)

checkbox.setTag(new Integer(position))

text.setText(data[position])

if (checkPosition != null){

checkbox.setChecked((checkPosition.contains(new Integer(position)) ? true : false))

}else{

checkbox.setChecked(false)

}

checkbox

.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override

public void onCheckedChanged(CompoundButton buttonView,

boolean isChecked) {

// TODO Auto-generated method stub

if (isChecked){

if (!checkPosition.contains(checkbox.getTag())){

checkPosition.add((Integer)checkbox.getTag())

}

}else{

if (checkPosition.contains(checkbox.getTag())){

checkPosition.remove(checkbox.getTag())

}

}

}

})

return convertView

}

}

}

如果你是手动加载listView 的ListItem，就可以在加载时设置你要加载的ListItem，如： ListViewItem week1 = new ListViewItem()

week1.Text = "星期一"

week1.Checked = true

listView1.Items.Add(week1)

而如果你是在Form中直接通过编辑项添加，就可以设置你添加的ListItem的Checked属性为True即可！

我很少写具体的对象应用心得，这次尝试一下。

WinForm中Listview的ItemCheck事件，例子如下：

private

void lvwTables_ItemCheck(object sender, ItemCheckEventArgs

e)

{

Check()

}

private void Check()

{

for (int i = 0

i <lvwTables.CheckedItems.Counti++)

{

//Some biz here

//这里检测不到选中的项目的正确状态

}

}

因为ItemCheck事件是在Check的一刻触发的，lvwTables.CheckItems中还没有添加。

我这样处理：

private

void lvwTables_ItemCheck(object sender, ItemCheckEventArgs

e)

{

Check(e.Index, e.NewValue)

}

private void

Check(int CurrentItem, CheckState State)

{

for (int i = 0i <

lvwTables.CheckedItems.Counti++)

{

if (i !=

CurrentItem)

//some biz here //能正确检测

}

if (CurrentItem != -1

&&State == CheckState.Checked)

//some biz here

//这里补一下

}

为什么不直接在事件中biz？因为我有很多个地方要调用一样的代码，所以封装成函数。

方法有点笨。

转载仅供参考，版权属于原作者。祝你愉快，满意请采纳哦

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