我使用交错的网格视图来显示我通过网络服务获得的信息。当我以格式肖像显示它没有问题。（我有2个网格）。在横向模式下，我有3个网格。问题出在这里，textview改变了大小并变得更大，当我滚动到最后，我将有2或1个网格（而不是3），有时没有网格。
这是适配器代码：
public class StaggeredAdapterVraiCategorie extends ArrayAdapter<VraiCategorie> {
ArrayList<VraiCategorie> categorieList;
LayoutInflater vi;
int Resource;
private ImageLoader mLoader;
Context context;
public StaggeredAdapterVraiCategorie(Context context, int resource,ArrayList<VraiCategorie> objects) {
super(context, resource, objects);
categorieList = objects;
Resource = resource;
this.context=context;
vi = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mLoader = new ImageLoader(context);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
LayoutInflater layoutInflator = LayoutInflater.from(getContext());
convertView = layoutInflator.inflate(R.layout.vrai_list_item_sample,null);
holder = new ViewHolder();
holder.imageView = (DynamicHeightImageView)convertView.findViewById(R.id.image);
holder.namecateg = (TextView)convertView.findViewById(R.id.namecateg);
holder.reftype = (TextView)convertView.findViewById(R.id.reftype);
holder.myid = (TextView)convertView.findViewById(R.id.myid);
convertView.setTag(holder);
}
// else {
holder =(ViewHolder)convertView.getTag();
// }
holder.namecateg.setText(categorieList.get(position).getNamecateg());
holder.reftype.setText(categorieList.get(position).getReftype());
holder.myid.setText(categorieList.get(position).getMyid());
String imgget=categorieList.get(position).getImagecateg();
if(!imgget.equals("null")){
String mylink="http://myserver/images/";
String imgexe=mylink+imgget;
new DownloadImageTask(holder.imageView).execute(imgexe);
}
else if (imgget.equals("null")){
holder.imageView.setHeightRatio(1.0); //ta3mel prob fel staggered
holder.imageView.setImageResource(R.drawable.nophoto);
}
if(!categorieList.get(position).getImagecateg().equals("null")) {
String mylink = "http://myserver/images/";
// holder = (ViewHolder) convertView.getTag();
mLoader.DisplayImage(mylink + categorieList.get(position).getImagecateg(), holder.imageView);
}
return convertView;
}
static class ViewHolder {
public DynamicHeightImageView imageView;
public TextView namecateg;
public TextView reftype;
public TextView myid;
}
private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
ImageView bmImage;
public DownloadImageTask(ImageView bmImage) {
this.bmImage = bmImage;
}
protected Bitmap doInBackground(String... urls) {
String urldisplay = urls[0];
Bitmap mIcon11 = null;
try {
InputStream in = new java.net.URL(urldisplay).openStream();
mIcon11 = BitmapFactory.decodeStream(in);
} catch (Exception e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return mIcon11;
}
protected void onPostExecute(Bitmap result) {
bmImage.setImageBitmap(result);
}
}
}
这是主要课程：
public class VraiCateg extends BaseFragment implements StaggeredGridView.OnItemClickListener {
ArrayList<VraiCategorie> categorieList;
StaggeredAdapterVraiCategorie adapter;
StaggeredGridView staggeredGridView;
String passtitle="";
SharedPreferences sharedpreferences;
public static final String MyPREFERENCES="My profile info";
public static final String keyidhotel="idH";
private String myidhotel="";
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.vrai_main, container, false);
Main activity = (Main) getActivity();
String myDataFromActivity = activity.getData();
myidhotel = myDataFromActivity;
final String url = "http://myserver/api/type_etablissement/categories/id/"+myidhotel;
//url = url + myidhotel;
Toast.makeText(getActivity().getApplicationContext(), "Adresse categ URL "+url, Toast.LENGTH_LONG).show();
staggeredGridView = (StaggeredGridView) view.findViewById(R.id.grid_view);
// myidhotel = getArguments().getString("idH");
int margin = getResources().getDimensionPixelSize(R.dimen.margin);
staggeredGridView.setPadding(margin, 0, margin, 0);
if(!(MySuperScaler.scaled))
MySuperScaler.scaleViewAndChildren(view, MySuperScaler.scale);
categorieList = new ArrayList<VraiCategorie>();
new CategorieAsyncTask().execute(url);
staggeredGridView.setOnItemClickListener(this);
return view;
}
class CategorieAsyncTask extends AsyncTask<String, Void, Boolean> {
ProgressDialog dialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
dialog = new ProgressDialog(getActivity());
dialog.setMessage("Loading, please wait");
dialog.setTitle("Connecting server");
dialog.show();
dialog.setCancelable(false);
}
@Override
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
dialog.cancel();
if (result == false){
//show a msg to user that data not parsed
Toast.makeText(getActivity().getApplicationContext(), "Unable to fetch data from server", Toast.LENGTH_LONG).show();
}
else {
//call etab adapter and create now adapter
StaggeredAdapterVraiCategorie adapter = new StaggeredAdapterVraiCategorie(getActivity().getApplicationContext(),R.layout.vrai_list_item_sample,categorieList);
staggeredGridView.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
}
@Override
protected Boolean doInBackground(String... params) {
try {
HttpClient client = new DefaultHttpClient();
//HttpPost post = new HttpPost(uri); //uri in oncreate method
HttpGet get = new HttpGet(params[0]);
HttpResponse response = client.execute(get);
int status = response.getStatusLine().getStatusCode();
if(status ==200){
//get the response and pars it
HttpEntity entity = response.getEntity();
String data = EntityUtils.toString(entity);
JSONObject jObj = new JSONObject(data);
JSONArray jArray = jObj.getJSONArray("categories");
for(int i=0;i<jArray.length();i++ ){
VraiCategorie categ = new VraiCategorie();
JSONObject jRealObject = jArray.getJSONObject(i);
categ.setImagecateg(jRealObject.getString("image_categorie"));
categ.setNamecateg(jRealObject.getString("description_type"));
//ref_type=jRealObject.getString("ref_type");
categ.setReftype(jRealObject.getString("ref_type"));
categ.setMyid(jRealObject.getString("my_id"));
categorieList.add(categ);
}
return true; //verifie the parse
}
}catch (ClientProtocolException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
catch (JSONException e) {
e.printStackTrace();
}
//http call
return false;
}
}
@Override
public void onItemClick(StaggeredGridView parent, View view, int position, long id) {
final String ref_type= categorieList.get(position).getReftype();
Fragment newFragment = new VraiRela();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
Bundle args=new Bundle();
args.putString("ref_type",ref_type);
args.putString("idH",myidhotel);
// Toast.makeText(getActivity().getApplicationContext(), "ref_type"+ref_type+"idH"+myidhotel, Toast.LENGTH_LONG).show();
newFragment.setArguments(args);
transaction.replace(R.id.frame_container, newFragment);
transaction.addToBackStack(null);
transaction.commit();
/* myidhotel="";
sharedpreferences = getActivity().getApplicationContext().getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedpreferences.edit();
myidhotel="";
editor.putString(keyidhotel, myidhotel);
editor.commit();*/
}
}