当listitem点击新活动时，我正在使用列表视图的片段在更改后我回到fragmen以及如何重新加载片段值后，当前列表位置值开始。
public class ManageCms extends Fragment implements SearchView.OnQueryTextListener{
int events;
CommonSharedPref commonSharedPref;
ListView list;
ManageCmsAdapter manageCmsAdapter;
List<ManageCmsModel> manageCmsModelList = new ArrayList<ManageCmsModel>();
ArrayList<ManageCmsModel> arraylist = new ArrayList<ManageCmsModel>();
int start=0;
int totcheckCount;
SearchView searchView;
ProgressDialog pDialog;
RequestQueue requestQueue;
String Url="";
public ManageCms() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_manage_cms, container,
false);
commonSharedPref =new CommonSharedPref(getActivity());
((MainActivity) getActivity())
.setActionBarTitle("Manage CMS");
getCMS();
FabSpeedDial fabSpeedDial=(FabSpeedDial)view.findViewById(R.id.cms_fab_speed_dial);
list = (ListView) view.findViewById(R.id.list_manageCms);
searchView=(SearchView)view.findViewById(R.id.searchView);
requestQueue= Volley.newRequestQueue(getActivity());
// Pass results to ListViewAdapter Class
manageCmsAdapter = new ManageCmsAdapter(getActivity(), R.layout.fragment_manage_cms_list_item,
manageCmsModelList);
// Binds the Adapter to the ListView
list.setAdapter(manageCmsAdapter);
list.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
list.setTextFilterEnabled(true);
setupSearchView();
list.setOnTouchListener(new ListView.OnTouchListener() {
private long startClickTime;
@Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
// Disallow ScrollView to intercept touch events.
v.getParent().requestDisallowInterceptTouchEvent(true);
events=1;
break;
case MotionEvent.ACTION_UP:
// Allow ScrollView to intercept touch events.
v.getParent().requestDisallowInterceptTouchEvent(false);
events=0;
break;
/*case MotionEvent.ACTION_MOVE:
long clickDuration = Calendar.getInstance().getTimeInMillis() - startClickTime;
if (clickDuration >= MIN_CLICK_DURATION) {
//Toast.makeText(getActivity(), "LONG PRESSED!",Toast.LENGTH_SHORT).show();
events=1;
}*//*
break;*/
}
// Handle ListView touch events.
v.onTouchEvent(event);
return true;
}
});
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
int pos = adapterView.getPositionForView(view);
String cmsId=manageCmsModelList.get(pos).getCmsId();
String cmsDescription=manageCmsModelList.get(pos).getCmsDescription();
String cmsUrl=manageCmsModelList.get(pos).getCmsUrl();
String cmsTitle=manageCmsModelList.get(pos).getCmsTitle();
commonSharedPref.clearAll();
commonSharedPref.editCMS(cmsTitle,cmsUrl, cmsDescription, cmsId);
Intent intent=new Intent(getActivity(),EditCms.class);
startActivity(intent);
}
});
list.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
@Override
public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
if(list!=null){
// Capture total checked items
int checkedCount = list.getCheckedItemCount();
// Set the CAB title according to total checked items
/*((MainActivity) getActivity()).getSupportActionBar().hide();*/
mode.setTitle(checkedCount + " Selected");
manageCmsAdapter.toggleSelection(position);
}
}
@Override
public boolean onCreateActionMode(ActionMode actionMode, Menu menu) {
actionMode.getMenuInflater().inflate(R.menu.menu_cms_management, menu);
return true;
}
@Override
public boolean onPrepareActionMode(ActionMode actionMode, Menu menu) {
return false;
}
@Override
public void onDestroyActionMode(ActionMode actionMode) {
manageCmsAdapter.removeSelection();
}
});
list.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView absListView, int totalItemCount) {
}
@Override
public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
int test=list.getAdapter().getCount();
// TODO Auto-generated method stub
if(test!=0 && !absListView.equals("")){
if (list.getLastVisiblePosition() == list.getAdapter().getCount() -1 &&
list.getChildAt(list.getChildCount() - 1).getBottom() <= list.getHeight())
{
SparseBooleanArray selected = manageCmsAdapter
.getSelectedIds();
if(selected.size() == 0 && test!=totcheckCount){
getCMS();
}
}
}
}
});
fabSpeedDial.setMenuListener(new SimpleMenuListenerAdapter() {
@Override
public boolean onMenuItemSelected(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.action_UnBlockAll:
toggleUnblockAll();
return true;
case R.id.action_BlockAll:
toggleBlockAll();
return true;
case R.id.action_DeleteAll:
toggleDeleteAll();
return true;
case R.id.action_SelectAll:
toggleSelectAll();
return true;
case R.id.action_DeSelectAll:
toggleDeSelectAll();
return true;
default:
return false;
}
}
});
return view;
}
private void setupSearchView() {
searchView.setIconifiedByDefault(false);
searchView.setOnQueryTextListener(this);
searchView.setSubmitButtonEnabled(true);
searchView.setQueryHint("Search Here");
}
private void toggleDeSelectAll() {
int checkcounts=manageCmsModelList.size();
manageCmsAdapter.removeSelection();
for(int i=0;i<checkcounts;i++){
list.setItemChecked(i, false);
}
}
private void toggleSelectAll() {
int checkcount=manageCmsModelList.size();
manageCmsAdapter.removeSelection();
for(int i=0;i<checkcount;i++){
list.setItemChecked(i, true);
}
}
private void toggleDeleteAll() {
SparseBooleanArray selected = manageCmsAdapter
.getSelectedIds();
if(selected.size()!=0){
Url=ApiConstants.MULTI_DELETE;
manageDelete();
}else{
Toast.makeText(getActivity(), R.string.select_atleat_one,Toast.LENGTH_SHORT).show();
}
}
private void toggleBlockAll() {
SparseBooleanArray selected = manageCmsAdapter
.getSelectedIds();
if(selected.size()!=0){
Url=ApiConstants.MULTI_BLOCK;
manageAll();
}else{
Toast.makeText(getActivity(), R.string.select_atleat_one,Toast.LENGTH_SHORT).show();
}
}
private void toggleUnblockAll() {
SparseBooleanArray selected = manageCmsAdapter
.getSelectedIds();
if(selected.size()!=0){
Url=ApiConstants.MULTI_UNBLOCK;
manageAll();
}else{
Toast.makeText(getActivity(), R.string.select_atleat_one,Toast.LENGTH_SHORT).show();
}
}
private void getCMS() {
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Loading Cms...");
pDialog.setCancelable(false);
showpDialog();
StringRequest stringRequest = new StringRequest(Request.Method.GET, ApiConstants.MANAGE_CMS+"?startLimit="+start,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
JSONArray user = null;
JSONObject jo = null;
try {
hidepDialog();
JSONObject users = new JSONObject(response);
String status = users.getString("message");
totcheckCount=Integer.valueOf(users.getString("totalRecord"));
if (status.equals("Success")) {
user = users.getJSONArray(ProjectConstants.JSON_ARRAY);
if (user.length() == 0) {
} else {
for (int i = 0; i < user.length(); i++) {
ManageCmsModel manageCmsModel=new ManageCmsModel();
jo = user.getJSONObject(i);
start++;
manageCmsModel.setCmsId(jo.getString("cmsId"));
manageCmsModel.setCmsDescription(jo.getString("cmsDescription"));
manageCmsModel.setCmsTitle(jo.getString("cmsTitle"));
manageCmsModel.setCmsUrl(jo.getString("cmsUrl"));
manageCmsModel.setCmsStatus(jo.getString("cmsStatus"));
manageCmsModel.setSno(String.valueOf(start));
manageCmsModelList.add(manageCmsModel);
arraylist.add(manageCmsModel);
//mAdapter.getSubscriberList().add(subscriber);
}
hidepDialog();
manageCmsAdapter = new ManageCmsAdapter(getActivity(), R.layout.fragment_feed_back_list_item,
arraylist);
list.setAdapter(manageCmsAdapter);
/*list.setAdapter(manageCmsAdapter);
manageCmsAdapter.notifyDataSetChanged();*/
}
} else if(status.equals("Error")){
String msg=users.getString("data");
Toast.makeText(getActivity(),msg,Toast.LENGTH_LONG).show();
}else if(status.equals("Warning")){
String msg=users.getString("data");
Toast.makeText(getActivity(),msg,Toast.LENGTH_LONG).show();
}else if(status.equals("Server error")){
toggleDeSelectAll();
String msg=users.getString("data");
Toast.makeText(getActivity(),msg,Toast.LENGTH_LONG).show();
}
hidepDialog();
} catch (Exception e) {
hidepDialog();
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
hidepDialog();
}
}) {
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
String startLimit = String.valueOf(start);
params.put("startLimit", startLimit);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
stringRequest.setShouldCache(false);
stringRequest.setRetryPolicy(new DefaultRetryPolicy(20 * 1000, 0,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
requestQueue.add(stringRequest);
}
}
public class EditCms extends AppCompatActivity {
EditText edt_cmsTitle,edt_cmsUrl,edt_cmsDesc;
String cmsId,cmsTitle,cmsUrl,cmsDescription,organizerId;
// Progress dialog
Button btn_editCms;
ProgressDialog pDialog;
RequestQueue requestQueue;
CommonSharedPref commonSharedPref;
private ArrayList<HashMap<String,String>> userData;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_edit_cms);
commonSharedPref =new CommonSharedPref(getApplicationContext());
DataBaseHandler dataBaseHandler=new DataBaseHandler(getApplicationContext());
userData=dataBaseHandler.getUserDetail();
organizerId=userData.get(0).get(ProjectConstants.KEY_ORGID);
getSupportActionBar().setTitle("Edit cms");
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
edt_cmsTitle=(EditText)findViewById(R.id.edt_cmsTitle);
edt_cmsUrl=(EditText)findViewById(R.id.edt_cmsUrl);
edt_cmsDesc=(EditText)findViewById(R.id.edt_cmsDesc);
SharedPreferences prefs = this.getSharedPreferences("user",
Context.MODE_PRIVATE);
edt_cmsTitle.setText(prefs.getString("cmsTitle", ""));
edt_cmsUrl.setText(prefs.getString("cmsUrl",""));
edt_cmsDesc.setText(prefs.getString("cmsDescription",""));
cmsId=prefs.getString("cmsId","");
btn_editCms=(Button)findViewById(R.id.btn_editCms);
btn_editCms.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
cmsTitle=edt_cmsTitle.getText().toString();
cmsUrl=edt_cmsUrl.getText().toString();
cmsDescription=edt_cmsDesc.getText().toString();
if(cmsTitle.equals("")){
Toast.makeText(getApplicationContext(), R.string.cms_title,Toast.LENGTH_SHORT).show();
}else if(cmsUrl.equals("")){
Toast.makeText(getApplicationContext(), R.string.cms_url,Toast.LENGTH_SHORT).show();
}else if(!Patterns.WEB_URL.matcher(cmsUrl).matches()){
Toast.makeText(getApplicationContext(), R.string.invalid_url,Toast.LENGTH_SHORT).show();
}else if(cmsDescription.equals("")){
Toast.makeText(getApplicationContext(), R.string.cms_desc,Toast.LENGTH_SHORT).show();
}else if(cmsDescription.length()<50){
Toast.makeText(getApplicationContext(), R.string.cms_min_char,Toast.LENGTH_SHORT).show();
}else{
editCMS();
}
} }
}
});
}
public void editCMS() {
pDialog = new ProgressDialog(this);
pDialog.setMessage("Updationg Cms...");
pDialog.setCancelable(false);
showpDialog();
StringRequest stringRequest = new StringRequest(Request.Method.POST, ApiConstants.EDIT_CMS+cmsId,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
JSONArray user = null;
JSONObject jo=null;
JSONArray error = null;
try{
hidepDialog();
JSONObject users = new JSONObject(response);
String status = users.getString("message");
if(status.equals("Success")){
String msg=users.getString("data");
Toast.makeText(getApplicationContext(),msg,Toast.LENGTH_LONG).show();
}else if(status.equals("Error")){
String msg=users.getString("data");
Toast.makeText(getApplicationContext(),msg,Toast.LENGTH_LONG).show();
}else if(status.equals("warning")){
String msg=users.getString("data");
Toast.makeText(
}
}getApplicationContext(),msg,Toast.LENGTH_LONG).show();
}else if(status.equals("Server error")){
String msg=users.getString("data");
Toast.makeText(getApplicationContext(),msg,Toast.LENGTH_LONG).show();
}
}catch (Exception e){
hidepDialog();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
hidepDialog();
String errorMessage=error.getClass().getSimpleName();
Toast.makeText(getApplicationContext(),errorMessage,Toast.LENGTH_LONG).show();
}
}){
@Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
params.put("cmsTitle",cmsTitle);
params.put("cmsUrl",cmsUrl);
params.put("cmsDescription",cmsDescription);
params.put("organizerId",organizerId);
return params;
}
};
}
public void showpDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
public void hidepDialog() {
if (pDialog.isShowing())
pDialog.dismiss();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
commonSharedPref.clearAll();
commonSharedPref.editCMS(cmsTitle,cmsUrl, cmsDescription, cmsId);
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onBackPressed() {
super.onBackPressed();
}
}
当listitem点击新活动时，我正在使用列表视图的片段在更改后我回到fragmen以及如何重新加载片段值后，当前列表位置值开始。
答案 0 :(得分：0)
覆盖片段中的onResume并通知您的适配器
@Override
protected void onResume() {
super.onResume();
manageCmsAdapter.notifyDataSetChanged();
}
当你进入另一个活动onPause片段将调用，当回来onResume（）将调用。所以你可以通知listview中的数据更改到适配器