1.建立main.xml布局文件
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity" >
<ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
2.建立item.xml布局文件
<?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="match_parent"
android:orientation="horizontal" >
<TextView
android:id="@+id/item_tv"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center_vertical"
/>
<CheckBox
android:id="@+id/item_ch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:checked="true"
android:focusable="false"
android:focusableInTouchMode="false"
/>
</LinearLayout>
3.Myadatper类中的代码
public class MyAdapter extends BaseAdapter {
private List<String> list;
private static HashMap<Integer,Boolean> isSelected;
private Context context;
private LayoutInflater inflater;
ViewHolder viewHolder=null;
private Abc abc;
public MyAdapter(List<String> list, Context context,Abc abc) {
super();
this.list = list;
this.context = context;
isSelected=new HashMap<Integer, Boolean>();
inflater=LayoutInflater.from(context);
this.abc=abc;
initDate();
}
//初始化isSelected数据
private void initDate(){
for(int i=0; i<list.size();i++) {
getIsSelected().put(i,false);
}
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int arg0) {
return list.get(arg0);
}
@Override
public long getItemId(int arg0) {
return arg0;
}
@Override
public View getView(final int position, View convertView, ViewGroup arg2) {
if(convertView==null){
viewHolder=new ViewHolder();
convertView=inflater.inflate(R.layout.item,null);
viewHolder.tv=(TextView) convertView.findViewById(R.id.item_tv);
viewHolder.cb=(CheckBox) convertView.findViewById(R.id.item_ch);
convertView.setTag(viewHolder);
}else{
viewHolder=(ViewHolder) convertView.getTag();
}
// 设置list中TextView的显示
viewHolder.tv.setText(list.get(position));
// 根据isSelected来设置checkbox的选中状况
viewHolder.cb.setChecked(getIsSelected().get(position));
CheckBox ch=viewHolder.cb;
if(!getIsSelected().get(position)){
abc.update(ch,position,true);
}else{
abc.update(ch,position,false);
}
return convertView;
}
public static HashMap<Integer, Boolean> getIsSelected() {
return isSelected;
}
public static void setIsSelected(HashMap<Integer, Boolean> isSelected) {
MyAdapter.isSelected = isSelected;
}
public static class ViewHolder{
public TextView tv;
public CheckBox cb;
}
public interface Abc{
public void update(View view,int position,boolean flag);
}
}
4.MainAcitivity代码
public class MainActivity extends Activity {
private ListView lv;
private MyAdapter mAdapter;
private ArrayList<String> list;
private Abc abc;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = (ListView) findViewById(R.id.listview);
list = new ArrayList<String>();
initDate();
abc=new Abc() {
@Override
public void update(View view,final int position,final boolean flag) {
CheckBox ch=(CheckBox) view;
ch.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
MyAdapter.getIsSelected().put(position,flag);
Toast.makeText(MainActivity.this,position+"dddd"+true,0).show();
}
});
}
};
mAdapter=new MyAdapter(list,this,abc);
lv.setAdapter(mAdapter);
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
}
});
}
// 初始化数据
private void initDate() {
for (int i = 0; i <56; i++) {
list.add("data" + " " + i);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}