下面是我的源代码，它适用于单选我想添加复选框以选择多张图片请帮助我该怎么办？如何更改我的 simpleadapter？或者如何在 simpleadapter 中添加复选框？请帮助我，我很困惑
public class FileGridActivity extends Activity {
GridView gridView;
TextView textView;
File currentParent;
File[] currentFiles;
String[] currentFilePath;
ImageButton AddPictures;
SimpleAdapter simpleAdapter;
final Context context = this;
DataBase db;
List<AppPhotosData> picList;
ProgressDialog myProgressDialog = null;
File CameraRoll;
File root;
Handler handle = new Handler(){
public void handleMessage(android.os.Message msg) {
if (msg.what == 1)
{
hideProgress();
//list.setAdapter(new AppPhotosAdapter(getApplicationContext(),activity,0,picList));
}
else if (msg.what == 2)
{
hideProgress();
}
super.handleMessage(msg);
};
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
File photos = new File(getFilesDir(),"photos");
photos.mkdirs();
File root1 = new File("/data/data/com.newsoftwares.folderlock/files/");
currentParent = root1;
currentFiles = root1.listFiles();
currentFilePath = new String[currentFiles.length];
int count = 0;
for(File f:currentFiles)
{
currentFilePath[count] = f.getAbsolutePath();
count++;
}
gridView =(GridView)findViewById(R.id.grid);
gridView.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> parent, View view, int position,long id) {
if(currentFiles[position].isDirectory())
{
root = new File("/data/data/com.newsoftwares.folderlock/files/"+FileName(currentFilePath[position])+"/");
Log.e("Root first",root+ " ");
currentFiles = root.listFiles();
inflateListView(currentFiles);
}
else if(currentFiles[position].isFile())
{
inflateListView(currentFiles);
}
}
});
private void inflateListView(File[] files){
List<Map<String,Object>> listItems = new ArrayList<Map<String,Object>>();
for(int i=0;i<files.length;i++)
{
Map<String, Object> listItem = new HashMap<String, Object>();
if(files[i].isDirectory())
{
listItem.put("icon", R.drawable.folder);
}
else
{
listItem.put("icon", files[i]);
}
listItem.put("fileName", files[i].getName());
listItems.add(listItem);
}
simpleAdapter=new SimpleAdapter(this,listItems,R.layout.line,new String[]
{"icon","fileName"},new int[]{R.id.icon,R.id.file_name});
gridView.setAdapter(simpleAdapter);
<!-----------main.xml------------>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<!----line.xml------------->
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:padding="5dip" >
<ImageView android:id="@+id/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="10dp"
/>
</RelativeLayout>
<GridView
android:id="@+id/grid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:horizontalSpacing="0pt"
android:verticalSpacing="1pt"
android:numColumns="3"
android:gravity="center"
></GridView>
</LinearLayout>