我正在片段上设置gridview的适配器。此片段附加在视图寻呼机的布局上，并且viewpager附加在活动中。 我检查过我的arraylist数据是刷新但视图不令人耳目一新。
我的代码是：
在onCreate of Activity ::
中设置适配器for(ArrayList<Item> newLst : updateList){
newPropertySubList.add(newLst);
}
Log.e("newPropertySubList","newPropertySubList"+newPropertySubList.size());
adapter = new PropertyPagerAdapetr(getSupportFragmentManager());
//propertyViewPager.setAdapter(adapter);
adapter.notifyChangeInPosition(1);
propertyViewPager.setAdapter(adapter);
adapter.notifyDataSetChanged();
mIndicator.setViewPager(propertyViewPager);
PropertyPagerAdapetr是：在此代码部分中，GridviewFragment在设置适配器时创建新实例。
public class PropertyPagerAdapetr extends FragmentPagerAdapter {
private long baseId = 0;
public PropertyPagerAdapetr(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int arg0) {
return GridViewFragment.newInstance(newPropertySubList.get(arg0));
}
@Override
public long getItemId(int position) {
return baseId + position;
}
public void destroyAllItem(){
getSupportFragmentManager().getFragments().clear();
}
@Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}
@Override
public int getCount() {
if (newPropertySubList != null && newPropertySubList.size() > 0)
return newPropertySubList.size();
else
return 0;
}
public void notifyChangeInPosition(int n) {
// shift the ID returned by getItemId outside the range of all previous fragments
baseId += getCount() + n;
}
}
GridViewFragment：Gridview适配器正在此片段中设置
public class GridViewFragment extends Fragment {
public static final String PROPERTY_TYPE = "property_type";
private GridView mImageGrid;
private View view;
ArrayList<Item> itemList;
String forRentOrSale;
double belowheight;
private GridLayout gLayout;
//int count;
//static Context mContext;
public static GridViewFragment newInstance(ArrayList<Item> propertyList) {
GridViewFragment frag = new GridViewFragment();
Bundle bundle = new Bundle();
bundle.putSerializable("Property_item", propertyList);
frag.setArguments(bundle);
return frag;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.grid_view_fragmnet, container, false);
mImageGrid = (GridView) rootView.findViewById(R.id.gridview);
itemList = (ArrayList<Item>) getArguments().getSerializable(
"Property_item");
LoadPropertyAdapter adapter = new LoadPropertyAdapter(getActivity());
mImageGrid.setAdapter(adapter);
//mImageGrid.setAdapter(new MyAdapter());
return rootView;
//return (view = inflater.inflate(R.layout.grid_view_fragmnet, null));
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
belowheight = (((SearchForm) getActivity()).belowHeight / 2);
initView();
initData();
setListener();
}
private void setListener() {
mImageGrid.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// Toast.makeText(getActivity(),
// ""+itemList.get(position).getPID()+" "+itemList.get(position).getA2(),
// Toast.LENGTH_LONG).show();
if (Constants.g_Setttings.getApp_google_analytics() != null
&& !Constants.g_Setttings.getApp_google_analytics().equals("")) {
TVApplication dApp = (TVApplication) getActivity().getApplication();
Tracker tracker = dApp.getTracker(TrackerName.APP_TRACKER,
Constants.g_Setttings.getApp_google_analytics());
tracker.setScreenName("/Search Form");
tracker.set(Fields.SCREEN_NAME, "Search Form");
tracker.send(new HitBuilders.AppViewBuilder().build());
}
Intent intent = new Intent(getActivity(),
PropertyDetailActivity.class);
Item item = itemList.get(position);
intent.putExtra(Constants.ACCESS_DETAIL_PAGE_KEY,
item);
if (((SearchForm) getActivity()).boolSale) {
intent.putExtra(PROPERTY_TYPE, "for sale");
} else if (((SearchForm) getActivity()).boolRent) {
intent.putExtra(PROPERTY_TYPE, "to rent");
} else if (((SearchForm) getActivity()).boolStudentRent) {
intent.putExtra(PROPERTY_TYPE, "to rent");
}
startActivity(intent);
}
});
}
private void initView() {
//mImageGrid = (GridView) view.findViewById(R.id.gridview);
// gLayout=(GridLayout) view.findViewById(R.id.gridlayout);
/*itemList = (ArrayList<Item>) getArguments().getSerializable(
"Property_item");
LoadPropertyAdapter adapter = new LoadPropertyAdapter();
mImageGrid.setAdapter(adapter);*/
}
private void initData() {
if (itemList == null || itemList.size() == 0)
return;
// setUpGridLayout();
/*
* ViewGroup.LayoutParams layoutParams = mImageGrid.getLayoutParams();
* layoutParams.height = (int)
* (((SearchForm)getActivity()).belowHeight/2); //this is in pixels
* mImageGrid.setLayoutParams(layoutParams);
*/
}
}
public class LoadPropertyAdapter extends BaseAdapter {
private Item propertyItem;
Context mContext;
Holder holder = null;
DisplayImageOptions options;
ImageLoader imageLoader;
ImageLoaderConfiguration config;
public LoadPropertyAdapter(FragmentActivity activity) {
mContext = activity;
imageLoader = ImageLoader.getInstance();
config = new ImageLoaderConfiguration.Builder(mContext)
.memoryCache(new WeakMemoryCache())
.denyCacheImageMultipleSizesInMemory()
.threadPoolSize(1)
.build();
options = new DisplayImageOptions.Builder()
.cacheOnDisc()
.resetViewBeforeLoading()
.bitmapConfig(Bitmap.Config.RGB_565)
.imageScaleType(ImageScaleType.IN_SAMPLE_INT)
.build();
imageLoader.init(config);
}
@Override
public int getCount() {
if (itemList != null && itemList.size() > 0)
return itemList.size();
else
return 0;
}
@Override
public Object getItem(int arg0) {
return itemList.get(arg0);
}
@Override
public long getItemId(int arg0) {
return arg0;
}
public String imageUrl() {
String imageUrl = "";
/*
* if (nm_item.m_bIsAdvert) { imageUrl =
* Constants.advertContainer.getImages_url() + "&file=" +
* Constants.advertContainer.getGen_advert()
* .get(nm_item.m_nIndex).getsca_image(); } else {
*/
imageUrl = Constants.getRequestUrl(propertyItem.getPID(), 1,
Constants.FLOORPLANS_IMAGE_BIG_URL, "");
// }
return imageUrl;
}
public class Holder
{
TextView priceText,content, feesApply, cornerLabel;
ImageView imageview;
RelativeLayout propertyStatusBG, propertyInfoView, layout;
ProgressBar progressbar ;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View rowView = null;
propertyItem = itemList.get(position);
if (rowView == null) {
// If convertView is null then inflate the appropriate layout file
rowView = LayoutInflater.from(mContext).inflate( R.layout.grid_view_imageviewitem , null);
holder = new Holder();
rowView.setTag(holder);
}else{
holder = (Holder) rowView.getTag();
}
//rowView = new View(getActivity());
holder.imageview = (ImageView) rowView
.findViewById(R.id.img_property);
holder.priceText = (TextView) rowView
.findViewById(R.id.pricetext);
holder.content = (TextView) rowView
.findViewById(R.id.contenttext);
holder.feesApply = (TextView) rowView
.findViewById(R.id.txt_fees_rent);
holder.propertyStatusBG = (RelativeLayout) rowView
.findViewById(R.id.rel_status_bg);
holder.cornerLabel = (TextView) rowView
.findViewById(R.id.txt_property_offer);
holder.progressbar = (ProgressBar) rowView
.findViewById(R.id.progressbar);
holder.propertyInfoView = (RelativeLayout) rowView
.findViewById(R.id.property_info_view);
//holder.imageview.setTag(imageUrl());
if (Constants.filter_Parameter != null
&& (Constants.filter_Parameter.getGoal().equals("2")
|| Constants.filter_Parameter.getGoal().equals(
"3") || Constants.filter_Parameter
.getGoal().equals("5"))) {
if (Constants.g_Setttings != null
&& Constants.g_Setttings.getIncl_tenantfeesinfo() != null
&& Constants.g_Setttings.getIncl_tenantfeesinfo()
.equals("1")) {
if (propertyItem.getTenant_fee_exempt() != null
&& propertyItem.getTenant_fee_exempt().equals("0")) {
holder.feesApply.setVisibility(View.VISIBLE);
} else {
holder.feesApply.setVisibility(View.GONE);
}
} else {
holder.feesApply.setVisibility(View.GONE);
}
} else {
holder.feesApply.setVisibility(View.GONE);
}
if (holder.feesApply != null) {
holder.feesApply.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getActivity(),
TenentFeeDialogActivity.class);
startActivity(intent);
}
});
}
Util.setButtonBackgroundColor(holder.propertyStatusBG);
// propertyStatusBG.getBackground().setAlpha(88);
Util.setButtonBackgroundColor(holder.cornerLabel);
if (propertyItem.getStatus() != null && !propertyItem.getStatus().equals("")) {
updatePropertyStatus(propertyItem.getStatus(), holder.cornerLabel,
holder.propertyStatusBG);
} else {
holder.propertyStatusBG.setVisibility(View.GONE);
}
if (propertyItem.getPR() != null
&& !propertyItem.getPR().equals("")) {
double price = Math.round(Double.parseDouble(propertyItem
.getPR()));
NumberFormat format = NumberFormat.getCurrencyInstance();
format.setMinimumFractionDigits(0);
format.setCurrency(Currency.getInstance(Locale.UK));
if (propertyItem.getLetRentFrequency() != null
&& !propertyItem.getLetRentFrequency().equals("")
&& (Constants.filter_Parameter.getGoal().equals("2") || Constants.filter_Parameter
.getGoal().equals("3"))) {
if (Constants.OPTIONS_FREQUENCY.equals("")) {
holder.priceText.setText(format.format(price) + " "
+ Constants.OPTIONS_FREQUENCY
);
} else {
holder.priceText.setText(format.format(price) + " "
+ propertyItem.getLetRentFrequency());
}
}
else if (Constants.g_Setttings.getApp_property_commercial() != null
&& Constants.g_Setttings.getApp_property_commercial()
.equals("1")) {
if ((Constants.g_Setttings
.getIncl_property_commercial_sales() != null && Constants.g_Setttings
.getIncl_property_commercial_sales().equals("1"))
|| Constants.g_Setttings
.getIncl_property_commercial_rent() != null
&& Constants.g_Setttings
.getIncl_property_commercial_rent().equals(
"1")) {
if (Constants.OPTIONS_FREQUENCY.equals("")) {
holder.priceText.setText(format.format(price) + " "
+ Constants.OPTIONS_FREQUENCY
);
} else {
holder.priceText.setText(format.format(price) + " "
+ propertyItem.getLetRentFrequency());
}
}
} else {
holder.priceText.setText(format.format(price));
}
}
String contentText = "";
String propertyTypeCode = propertyItem.getPT();
String propertyType = "";
if (propertyTypeCode != null && !propertyTypeCode.equals("")
&& !propertyTypeCode.equals("null")
&& !propertyTypeCode.equals("0")) {
if (Constants.propertyTypeList != null
&& Constants.propertyTypeList.size() > 0) {
for (int i = 0; i < Constants.propertyTypeList.size(); i++) {
if (Constants.propertyTypeList.get(i).getId() == Integer
.parseInt(propertyTypeCode)) {
propertyType = Constants.propertyTypeList.get(i)
.getLabel();
break;
}
}
} else {
propertyType = "";
}
} else {
propertyType = "";
}
initRentOrSale();
if (propertyItem.getBD() != null
&& !propertyItem.getBD().equals("")) {
if (propertyItem.getBD().equals("0")) {
if (!propertyType.equals("")) {
contentText = propertyType + " " + forRentOrSale + " ";
} else {
contentText = forRentOrSale + " ";
}
} else {
if (!propertyType.equals("")) {
contentText += propertyItem.getBD() + " bed "
+ propertyType + " " + forRentOrSale + " ";
} else {
contentText += propertyItem.getBD() + " bed "
+ forRentOrSale + " ";
}
}
}
if (propertyItem.getA2() != null
&& !propertyItem.getA2().equals("")) {
contentText += "in "
+ Html.fromHtml(StringEscapeUtils
.unescapeHtml(propertyItem.getA2())) + " ";
}
if (contentText != null && !contentText.equals("")) {
holder.content.setText(contentText);
}
imageLoader.displayImage(imageUrl(), holder.imageview,options, new ImageLoadingListener(){
@Override
public void onLoadingStarted(String imageUri, View view) {
holder.progressbar.setVisibility(View.VISIBLE);
}
@Override
public void onLoadingFailed(String imageUri, View view,
FailReason failReason) {
holder.progressbar.setVisibility(View.GONE);
}
@Override
public void onLoadingComplete(String imageUri, View view,
Bitmap loadedImage) {
holder.progressbar.setVisibility(View.GONE);
}
@Override
public void onLoadingCancelled(String imageUri, View view) {
holder.progressbar.setVisibility(View.GONE);
}
});
holder.layout = new RelativeLayout(getActivity());
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
(int) (belowheight / 1.1));
holder.layout.addView(rowView, params);
holder.propertyInfoView.getLayoutParams().height = (int) (belowheight / 4.60);
return holder.layout;
}
}
}
答案 0 :(得分：0)
您可能正在混合GridLayout和GridView。它们是不同的实体。
在setUpGridLayout（）中，您要为grid_view_imageviewitem充气并将其添加到GridLayout，而不是GridView。
答案 1 :(得分：0)
*
i have solve the issue using
Handler disconnectHandler = new Handler() {
public void handleMessage(Message msg) {
}
};
Runnable disconnectCallback = new Runnable() {
@Override
public void run() {
/////////// load data from here ////
}
}
};
disconnectHandler.postDelayed(disconnectCallback, 1000);*
*