I want to show list item name in fragment textview.
How can I do this?
Here is my code:
Title.java
public class Title extends AppCompatActivity implements OnVersionNameSelectionChangeListener{
private static final String TAG = Title.class.getSimpleName();
String str, arr[];
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_title);
str = getIntent().getExtras().getString("string","defaultValue");
//Toast.makeText(getApplicationContext(), str , Toast.LENGTH_SHORT).show();
// Check whether the Activity is using the layout verison with the fragment_container
// FrameLayout and if so we must add the first fragment
if (findViewById(R.id.fragment_container) != null){
// However if we are being restored from a previous state, then we don't
// need to do anything and should return or we could end up with overlapping Fragments
if (savedInstanceState != null){
return;
}
// Create an Instance of Fragment
VersionsFragment versionsFragment = new VersionsFragment();
Bundle bundle = new Bundle();
bundle.putString("key", str);
//versionsFragment.setArguments(getIntent().getExtras());
versionsFragment.setArguments(bundle);
getFragmentManager().beginTransaction().add(R.id.fragment_container, versionsFragment).commit();
}
}
#Override
public void OnSelectionChanged(int versionNameIndex, String[] answer) {
DescriptionFragment descriptionFragment = (DescriptionFragment) getFragmentManager()
.findFragmentById(R.id.version_description);
if (descriptionFragment != null){
// If description is available, we are in two pane layout
// so we call the method in DescriptionFragment to update its content
// Bundle args = new Bundle();
// args.putString("key", str);
// args.putStringArray("answer", answer );
//args.putInt(DescriptionFragment.KEY_POSITION,versionNameIndex);
//descriptionFragment.setArguments(args);
setArray(answer);
//setStr(str);
descriptionFragment.setDescription(versionNameIndex);
} else {
DescriptionFragment newDescriptionFragment = new DescriptionFragment();
Bundle args = new Bundle();
//args.putString("key", str);
//args.putStringArray("answer", answer );
setArray(answer);
args.putInt(DescriptionFragment.KEY_POSITION,versionNameIndex);
newDescriptionFragment.setArguments(args);
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
// Replace whatever is in the fragment_container view with this fragment,
// and add the transaction to the backStack so the User can navigate back
fragmentTransaction.replace(R.id.fragment_container,newDescriptionFragment);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
}
public String getStr(){
return str;
}
public void setArray(String[] s)
{
arr = s;
//Log.d(TAG, "setArray: " + arr[0]);
}
public String[] getArray(){
return arr;
}
}
DescriptionFragment.java
public class DescriptionFragment extends Fragment {
private static final String TAG = DescriptionFragment.class.getSimpleName();
final static String KEY_POSITION = "position";
int mCurrentPosition = -1;
String[] mVersionTitle;
String[] mVersionDescriptions;
TextView mVersionTitleTextView;
TextView mVersionDescriptionTextView;
public DescriptionFragment() {
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Title t = (Title) getActivity();
mVersionDescriptions = t.getArray();
//Log.d(TAG , "onActivityCreated: " + mVersionDescriptions.length);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// If the Activity is recreated, the savedInstanceStare Bundle isn't empty
// we restore the previous version name selection set by the Bundle.
// This is necessary when in two pane layout
String strtext = getArguments().getString("title");
if (savedInstanceState != null) {
mCurrentPosition = savedInstanceState.getInt(KEY_POSITION);
//Log.d(TAG, "Show last click position: "+ KEY_POSITION);
}
View view = inflater.inflate(R.layout.fragment_description, container, false);
mVersionTitleTextView = (TextView) view.findViewById(R.id.textView_Title);
mVersionTitleTextView.setText(strtext);
mVersionDescriptionTextView = (TextView) view.findViewById(R.id.version_description);
return view;
}
#Override
public void onStart() {
super.onStart();
Bundle args = new Bundle();
args = getArguments();
if (args != null) {
// Set description based on argument passed in
// setTitle(args.getInt(KEY_POSITION));
setDescription(args.getInt(KEY_POSITION));
} else if (mCurrentPosition != -1) {
// Set description based on savedInstanceState defined during onCreateView()
// setTitle(mCurrentPosition);
setDescription(mCurrentPosition);
}
}
public void setDescription(int descriptionIndex) {
Title t = (Title) getActivity();
// mVersionTitle = t.getArray();
mVersionDescriptions = t.getArray();
//mVersionTitleTextView.setText(mVersionTitle[descriptionIndex]);
mVersionDescriptionTextView.setText(mVersionDescriptions[descriptionIndex]);
mCurrentPosition = descriptionIndex;
Log.d(TAG, "onSaveInstanceState: " + mCurrentPosition);
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// Save the current description selection in case we need to recreate the fragment
outState.putInt(KEY_POSITION, mCurrentPosition);
//Log.d(TAG, "onSaveInstanceState: " + mCurrentPosition);
}
}
versionFragment.java
public class VersionsFragment extends ListFragment {
private static final String TAG = VersionsFragment.class.getSimpleName();
String[] title = new String[0];
String[] description = new String[0];
String table=new String();
public VersionsFragment() {
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
String myValue = this.getArguments().getString("key");
Title q = (Title) getActivity();
table = q.getStr();
//Log.d(TAG, "onActivityCreated: " + table);
if(table.equals("Paragraph Writing"))
table="paragraph";
else if(table.equals("Story Writing"))
table="story";
table = table.toLowerCase();
new MyTask().execute();
}
class MyTask extends AsyncTask<String, Integer, String[]> {
#Override
protected String[] doInBackground(String... params) {
String[] versionName = new String[0];
ArrayList<String> scripts = new ArrayList<String>();
ArrayList<String> scripts2 = new ArrayList<String>();
try {
//Log.d(VersionsFragment.class.getSimpleName(),"http://192.168.1.105/android/phpcall.php?table="+table );
URL url = new URL("http://192.168.1.6/ps/phpcall.php?table="+table);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
String strJson = "";
String line;
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
while ((line = br.readLine()) != null) {
strJson += line;
}
//Log.d(VersionsFragment.class.getSimpleName(), "JSON string =" + strJson);
JSONArray jArray = new JSONArray(strJson);
//JSONObject jsonObj = new JSONObject(strJson);
// Getting JSON Array node
//JSONArray jArray = jsonObj.getJSONArray(strJson);
for (int i = 0; i < jArray.length(); i++) {
JSONObject jObject = jArray.getJSONObject(i);
String name = jObject.getInt("id") + ". " + jObject.getString("title");
scripts.add(name);
Bundle bundle = new Bundle();
bundle.putString("title", name);
// set Fragmentclass Arguments
DescriptionFragment fragobj = new DescriptionFragment();
fragobj.setArguments(bundle);
String name2 = jObject.getString("description");
scripts2.add(name2);
}
versionName = scripts.toArray(new String[scripts.size()]);
// title = scripts.toArray(new String[scripts.size()]);
description = scripts2.toArray(new String[scripts.size()]);
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
return versionName;
}
protected void onPostExecute(String[] result){
//for(int i=0;i<result.length;i++)
//Log.d(VersionsFragment.class.getSimpleName(), result[i]);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, result);
setListAdapter(adapter);
}
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
OnVersionNameSelectionChangeListener listener = (OnVersionNameSelectionChangeListener) getActivity();
listener.OnSelectionChanged(position,description);
}
}
Related
Hey Guys I'm working on a calorie app where the user clicks the search button and it supposed to retrieve information from the USDA Food Composition Databases API. For some reason it doesnt do anything and I noticed I get an error in the Logcat.
Im new to Android and to API. Thanks again in advance..
logcat :
Here is the logcat Error I'm Getting
AddEntry.java
public class AddEntry extends Fragment implements View.OnClickListener {
EditText FoodET,CalorieET;
ImageButton Savebtn, Cancelbtn;
Button searchbutton;
String foodET,calorieET;
//database
private DatabaseHandler dba;
public AddEntry() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View myView = inflater.inflate(R.layout.fragment_add_entry, container,
false);
Savebtn = (ImageButton) myView.findViewById(R.id.SaveBtn);
Savebtn.setBackgroundColor(Color.TRANSPARENT);
Savebtn.setOnClickListener(this);
searchbutton = (Button) myView.findViewById(R.id.SearchButton);
searchbutton.setOnClickListener(this);
Cancelbtn = (ImageButton) myView.findViewById(R.id.CancelBtn);
Cancelbtn.setBackgroundColor(Color.TRANSPARENT);
Cancelbtn.setOnClickListener(this);
return myView;
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
FoodET= (EditText)view.findViewById(R.id.foodEditText);
FoodET.setInputType(InputType.TYPE_CLASS_TEXT);
CalorieET=(EditText)view.findViewById(R.id.caloriesEditText);
CalorieET.setInputType(InputType.TYPE_CLASS_NUMBER);
foodET = ((EditText)
view.findViewById(R.id.foodEditText)).getText().toString();
calorieET = ((EditText)
view.findViewById(R.id.caloriesEditText)).getText().toString();
}
public void saveDataToDB (){
Food food = new Food();
String FoodName = FoodET.getText().toString().trim();
String calString = CalorieET.getText().toString().trim();
//convert the claories numbers to text
if (!calString.equals("")) {
int cal = Integer.parseInt(calString);
food.setFoodName(FoodName);
food.setCalories(cal);
//call addFood method from the DatabaseHandler
dba.addFood(food);
dba.close();
//clear the editTexts
FoodET.setText("");
CalorieET.setText("");
//take the user to the next screen
//
((appMain) getActivity()).loadSelection(0);
;
}
else
{
Toast.makeText(getActivity(), "Please enter information",
Toast.LENGTH_LONG).show();
}
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.SearchButton:
InputMethodManager inputManager = (InputMethodManager)
getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(
getActivity().getCurrentFocus().getWindowToken(),
InputMethodManager.HIDE_NOT_ALWAYS);
FoodSearch search = new FoodSearch(foodET,CalorieET );
search.execute();
break;
case R.id.SaveBtn:
foodET = FoodET.getText().toString();
calorieET=CalorieET.getText().toString();
if (FoodET.getText().toString().equals(null) ||
CalorieET.getText().toString().equals(null)||
CalorieET.getText().toString().equals("")){
Toast.makeText(getActivity(), "Please enter information",
Toast.LENGTH_LONG).show();
}
((appMain) getActivity()).loadSelection(0);
break;
case R.id.CancelBtn:
// EditText descriptionET=
(EditText)getView().findViewById(R.id.foodEditText);
//descriptionET.setText("");
//EditText calorieET=
(EditText)getView().findViewById(R.id.caloriesEditText);
//calorieET.setText("");
((appMain) getActivity()).loadSelection(0);
break;
}
}
#Override
public void onDestroy() {
super.onDestroy();
}
#Override
public void onDetach() {
super.onDetach();
}
private class FoodSearch extends AsyncTask<Void, Void, String> {
String food;
EditText calories;
FoodSearch(String food, EditText calories){
this.food = food;
this.calories = calories;
}
#Override
protected String doInBackground(Void... params) {
try {
food = food.replaceAll(" ", "%20");
URL url = new URL("http://api.nal.usda.gov/ndb/search/?
format=JSON&q=" + food
+"&max=1&offset=0&sort=r&api_
key=2PmoCzLAhkNUeJcwq2VfOaSNY66UgFVDEcco2qMP");
HttpURLConnection urlConnection = (HttpURLConnection)
url.openConnection();
try {
BufferedReader bufferedReader = new BufferedReader(new
InputStreamReader(urlConnection.getInputStream()));
StringBuilder stringBuilder = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
stringBuilder.append(line).append("\n");
}
bufferedReader.close();
String result = stringBuilder.toString();
if(result.contains("zero results")) {
String s = "empty";
return s;
}
JSONObject object = (JSONObject) new
JSONTokener(result).nextValue();
JSONObject list = object.getJSONObject("list");
JSONArray items = list.getJSONArray("item");
String item = items.get(0).toString();
int i = item.indexOf("ndbno\":\"") + 8;
int f = item.indexOf("\"", i);
String ndbno = item.substring(i,f);
Log.d("DEBUG", ndbno);
URL url2 = new URL("http://api.nal.usda.gov/ndb/reports/?
ndbno="+ ndbno +"&type=b&format=JSON&api_
key=2PmoCzLAhkNUeJcwq2VfOaSNY66UgFVDEcco2qMP");
HttpURLConnection urlConnection2 = (HttpURLConnection)
url2.openConnection();
BufferedReader bufferedReader2 = new BufferedReader(new
InputStreamReader(urlConnection2.getInputStream()));
StringBuilder stringBuilder2 = new StringBuilder();
String line2;
while ((line2 = bufferedReader2.readLine()) != null) {
stringBuilder2.append(line2).append("\n");
}
bufferedReader2.close();
String res = stringBuilder2.toString();
int index = res.indexOf("\"unit\": \"kcal\",") + 46;
int index2 = res.indexOf("\"", index);
String calories = res.substring(index,index2);
urlConnection2.disconnect();
return calories;
}
finally{
urlConnection.disconnect();
}
}
catch(Exception e) {
Log.e("ERROR", e.getMessage(), e);
String s = "empty";
return s;
}
}
protected void onPostExecute(String response) {
if(!response.isEmpty() && !response.equals("empty")) {
calories.setText(response);
} else {
AlertDialog foodNotFound = new
AlertDialog.Builder(getContext()).create();
foodNotFound.setTitle("Error");
foodNotFound.setMessage("Food not found :(");
foodNotFound.setButton(AlertDialog.BUTTON_NEUTRAL, "OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int
which) {
dialog.dismiss();
}
});
}
}
}
}
You Can call the Async task within the same class and SHow alert dialog in the onPost execute section
public class AddEntry extends Fragment implements View.OnClickListener {
EditText DescriptionET,CalorieET; ImageButton Savebtn, Cancelbtn; Button searchbutton; String description , calorieAmt; //database
private DatabaseHandler dba;
public AddEntry() {
// Required empty public constructor
}
#Override public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) { // Inflate the layout for this fragment View myView = inflater.inflate(R.layout.fragment_add_entry, container, false);
Savebtn = (ImageButton) myView.findViewById(R.id.SaveBtn);
Savebtn.setBackgroundColor(Color.TRANSPARENT);
Savebtn.setOnClickListener(this);
searchbutton = (Button) myView.findViewById(R.id.SearchButton);
searchbutton.setOnClickListener(this);
Cancelbtn = (ImageButton) myView.findViewById(R.id.CancelBtn);
Cancelbtn.setBackgroundColor(Color.TRANSPARENT);
Cancelbtn.setOnClickListener(this);
return myView;
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
DescriptionET= (EditText)view.findViewById(R.id.foodEditText);
DescriptionET.setInputType(InputType.TYPE_CLASS_TEXT);
CalorieET=(EditText)view.findViewById(R.id.caloriesEditText);
CalorieET.setInputType(InputType.TYPE_CLASS_NUMBER);
//save to database:
}
public void saveDataToDB (){
Food food = new Food();
String name = DescriptionET.getText().toString().trim();
String calString = CalorieET.getText().toString().trim();
//convert the claories numbers to text
if (!calString.equals("")) {
int cal = Integer.parseInt(calString);
food.setFoodName(name);
food.setCalories(cal);
//call addFood method from the DatabaseHandler
dba.addFood(food);
dba.close();
//clear the editTexts
DescriptionET.setText("");
CalorieET.setText("");
//take the user to the next screen
//
((appMain) getActivity()).loadSelection(0);
;
}
else
{
Toast.makeText(getActivity(), "Please enter information",
Toast.LENGTH_LONG).show();
}
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.SearchButton:
InputMethodManager inputManager = (InputMethodManager)
getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(
getActivity().getCurrentFocus().getWindowToken(),
InputMethodManager.HIDE_NOT_ALWAYS);
FoodSearch search = new FoodSearch(description,CalorieET);
search.execute();
break;
case R.id.SaveBtn:
description = DescriptionET.getText().toString();
calorieAmt=CalorieET.getText().toString();
if (DescriptionET.getText().toString().equals(null) ||
CalorieET.getText().toString().equals(null)||
CalorieET.getText().toString().equals("")){
Toast.makeText(getActivity(), "Please enter information",
Toast.LENGTH_LONG).show();
}
((appMain) getActivity()).loadSelection(0);
break;
case R.id.CancelBtn:
// EditText descriptionET=
(EditText)getView().findViewById(R.id.foodEditText);
//descriptionET.setText("");
//EditText calorieET=
(EditText)getView().findViewById(R.id.caloriesEditText);
//calorieET.setText("");
((appMain) getActivity()).loadSelection(0);
break;
}
}
#Override
public void onDestroy() {
super.onDestroy();
}
#Override
public void onDetach() {
super.onDetach();
}
}
private class FoodSearch extends AsyncTask<Void, Void, String>{
String food;
EditText calories;
FoodSearch(String food, EditText calories){
this.food = food;
this.calories = calories;
}
#Override
protected String doInBackground(Void... params) {
try {
food = food.replaceAll(" ", "%20");
URL url = new URL("http://api.nal.usda.gov/ndb/search/?
format=JSON&q=" + food +"&max=1&offset=0&sort=r&api_key=2PmoCzLAhkNUeJcwq2VfOaSNY66UgFVDEcco2qMP");
HttpURLConnection urlConnection = (HttpURLConnection)
url.openConnection();
try {
BufferedReader bufferedReader = new BufferedReader(new
InputStreamReader(urlConnection.getInputStream()));
StringBuilder stringBuilder = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
stringBuilder.append(line).append("\n");
}
bufferedReader.close();
String result = stringBuilder.toString();
if(result.contains("zero results")) {
String s = "empty";
return s;
}
JSONObject object = (JSONObject) new
JSONTokener(result).nextValue();
JSONObject list = object.getJSONObject("list");
JSONArray items = list.getJSONArray("item");
String item = items.get(0).toString();
int i = item.indexOf("ndbno\":\"") + 8;
int f = item.indexOf("\"", i);
String ndbno = item.substring(i,f);
Log.d("DEBUG", ndbno);
URL url2 = new URL("http://api.nal.usda.gov/ndb/reports/?ndbno="+ ndbno +"&type=b&format=JSON&api_key=2PmoCzLAhkNUeJcwq2VfOaSNY66UgFVDEcco2qMP");
HttpURLConnection urlConnection2 = (HttpURLConnection)
url2.openConnection();
BufferedReader bufferedReader2 = new BufferedReader(new
InputStreamReader(urlConnection2.getInputStream()));
StringBuilder stringBuilder2 = new StringBuilder();
String line2;
while ((line2 = bufferedReader2.readLine()) != null) {
stringBuilder2.append(line2).append("\n");
}
bufferedReader2.close();
String res = stringBuilder2.toString();
int index = res.indexOf("\"unit\": \"kcal\",") + 46;
int index2 = res.indexOf("\"", index);
String calories = res.substring(index,index2);
urlConnection2.disconnect();
return calories;
}
finally{
urlConnection.disconnect();
}
}
catch(Exception e) {
Log.e("ERROR", e.getMessage(), e);
String s = "empty";
return s;
}
}
protected void onPostExecute(String response) {
if(!response.isEmpty() && !response.equals("empty")) {
calories.setText(response);
} else {
AlertDialog foodNotFound = new
AlertDialog.Builder(getContext()).create();
foodNotFound.setTitle("Error");
foodNotFound.setMessage("Food not found :(");
foodNotFound.setButton(AlertDialog.BUTTON_NEUTRAL, "OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
}
}
}
I am developing an app. In it I'm using a listview. When I click on list item, it should go to next activity, i.e ProfileActivity2.java. It works fine, but in this ProfileActivty2 there is a button at the bottom and when I click on this button my app gets crashed and stopped in listview page. And shows the error java.lang.Throwable: setStateLocked in listview layout file i.e At setContentView. How do I solve this error?
//ProfileActivity2.java
public class ProfileActivity2 extends AppCompatActivity {
//Textview to show currently logged in user
private TextView textView;
private boolean loggedIn = false;
Button btn;
EditText edname,edaddress;
TextView tvsname, tvsprice;
NumberPicker numberPicker;
TextView textview1,textview2;
Integer temp;
String pname, paddress, email, sname, sprice;
#Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile1);
//Initializing textview
textView = (TextView) findViewById(R.id.textView);
edname=(EditText)findViewById(R.id.ed_pname);
edaddress=(EditText)findViewById(R.id.ed_add);
tvsname=(TextView)findViewById(R.id.textView_name);
tvsprice=(TextView)findViewById(R.id.textView2_price);
btn=(Button)findViewById(R.id.button);
Intent i = getIntent();
// getting attached intent data
String name = i.getStringExtra("sname");
// displaying selected product name
tvsname.setText(name);
String price = i.getStringExtra("sprice");
// displaying selected product name
tvsprice.setText(price);
numberPicker = (NumberPicker)findViewById(R.id.numberpicker);
numberPicker.setMinValue(0);
numberPicker.setMaxValue(4);
final int foo = Integer.parseInt(price);
textview1 = (TextView)findViewById(R.id.textView1_amount);
textview2 = (TextView)findViewById(R.id.textView_seats);
// numberPicker.setValue(foo);
numberPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
#Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
temp = newVal * foo;
// textview1.setText("Selected Amount : " + temp);
// textview2.setText("Selected Seats : " + newVal);
textview1.setText(String.valueOf(temp));
textview2.setText(String.valueOf(newVal));
// textview1.setText(temp);
// textview2.setText(newVal);
}
});
//Fetching email from shared preferences
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// submitForm();
// Intent intent = new Intent(ProfileActivity2.this, SpinnerActivity.class);
// startActivity(intent);
SharedPreferences sharedPreferences = getSharedPreferences(Config.SHARED_PREF_NAME, Context.MODE_PRIVATE);
loggedIn = sharedPreferences.getBoolean(Config.LOGGEDIN_SHARED_PREF, false);
String email = sharedPreferences.getString(Config.EMAIL_SHARED_PREF, "Not Available");
textView.setText(email);
if(loggedIn){
submitForm();
Intent intent = new Intent(ProfileActivity2.this, SpinnerActivity.class);
startActivity(intent);
}
}
});
}
private void submitForm() {
// Submit your form here. your form is valid
//Toast.makeText(this, "Submitting form...", Toast.LENGTH_LONG).show();
String pname = edname.getText().toString();
String paddress = edaddress.getText().toString();
String sname = textview1.getText().toString();
// String sname= String.valueOf(textview1.getText().toString());
String sprice= textview2.getText().toString();
// String sprice= String.valueOf(textview2.getText().toString());
String email= textView.getText().toString();
Toast.makeText(this, "Signing up...", Toast.LENGTH_SHORT).show();
new SignupActivity(this).execute(pname,paddress,sname,sprice,email);
}
}
//SignupActivity
public class SignupActivity extends AsyncTask<String, Void, String> {
private Context context;
Boolean error, success;
public SignupActivity(Context context) {
this.context = context;
}
protected void onPreExecute() {
}
#Override
protected String doInBackground(String... arg0) {
String pname = arg0[0];
String paddress = arg0[1];
String sname = arg0[2];
String sprice = arg0[3];
String email = arg0[4];
String link;
String data;
BufferedReader bufferedReader;
String result;
try {
data = "?pname=" + URLEncoder.encode(pname, "UTF-8");
data += "&paddress=" + URLEncoder.encode(paddress, "UTF-8");
data += "&sname=" + URLEncoder.encode(sname, "UTF-8");
data += "&sprice=" + URLEncoder.encode(sprice, "UTF-8");
data += "&email=" + URLEncoder.encode(email, "UTF-8");
link = "http://example.in/Spinner/update.php" + data;
URL url = new URL(link);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
bufferedReader = new BufferedReader(new InputStreamReader(con.getInputStream()));
result = bufferedReader.readLine();
return result;
} catch (Exception e) {
// return new String("Exception: " + e.getMessage());
// return null;
}
return null;
}
#Override
protected void onPostExecute(String result) {
String jsonStr = result;
Log.e("TAG", jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
String query_result = jsonObj.getString("query_result");
if (query_result.equals("SUCCESS")) {
Toast.makeText(context, "Success! Your are Now MangoAir User.", Toast.LENGTH_LONG).show();
} else if (query_result.equals("FAILURE")) {
Toast.makeText(context, "Looks Like you already have Account with US.", Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
// Toast.makeText(context, "Error parsing JSON Please data Fill all the records.", Toast.LENGTH_SHORT).show();
// Toast.makeText(context, "Please LogIn", Toast.LENGTH_SHORT).show();
Toast.makeText(context, "Please Login", Toast.LENGTH_LONG).show();
}
} else {
Toast.makeText(context, "Grrr! Check your Internet Connection.", Toast.LENGTH_SHORT).show();
}
}
}
//List_Search
public class List_Search extends AppCompatActivity {
JSONObject jsonobject;
JSONArray jsonarray;
ListView listview;
ListViewAdapter adapter;
ProgressDialog mProgressDialog;
ArrayList<HashMap<String, String>> arraylist;
static String SNAME = "sname";
static String SPRICE = "sprice";
Context ctx = this;
#Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.list_search);
new DownloadJSON().execute();
}
// DownloadJSON AsyncTask
private class DownloadJSON extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Create a progressdialog
mProgressDialog = new ProgressDialog(List_Search.this);
// Set progressdialog title
mProgressDialog.setTitle("Android JSON Parse Tutorial");
// Set progressdialog message
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
// Show progressdialog
mProgressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
// Create an array
arraylist = new ArrayList<HashMap<String, String>>();
// Retrieve JSON Objects from the given URL address
jsonobject = JSONfunctions
.getJSONfromURL("http://example.in/MangoAir_User/mangoair_reg/ListView1.php");
try {
// Locate the array name in JSON
jsonarray = jsonobject.getJSONArray("result");
for (int i = 0; i < jsonarray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
jsonobject = jsonarray.getJSONObject(i);
// Retrive JSON Objects
map.put("sname", jsonobject.getString("sname"));
map.put("sprice", jsonobject.getString("sprice"));
// Set the JSON Objects into the array
arraylist.add(map);
}
} catch (JSONException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void args) {
// Locate the listview in listview_main.xml
listview = (ListView) findViewById(R.id.listView_search);
// Pass the results into ListViewAdapter.java
// adapter = new ListViewAdapter(List_Search.this, arraylist);
adapter = new ListViewAdapter(ctx, arraylist);
// Set the adapter to the ListView
listview.setAdapter(adapter);
// Close the progressdialog
mProgressDialog.dismiss();
}
}
}
//ListViewAdapter
public class ListViewAdapter extends BaseAdapter {
// Declare Variables
Context context;
LayoutInflater inflater;
private boolean loggedIn = false;
ArrayList<HashMap<String, String>> data;
HashMap<String, String> resultp = new HashMap<String, String>();
public ListViewAdapter(Context context,
ArrayList<HashMap<String, String>> arraylist) {
this.context = context;
data = arraylist;
}
#Override
public int getCount() {
return data.size();
}
#Override
public Object getItem(int position) {
return null;
}
#Override
public long getItemId(int position) {
return 0;
}
public View getView(final int position, View convertView, ViewGroup parent) {
// Declare Variables
TextView name,price;
Button btn;
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View itemView = inflater.inflate(R.layout.search_item, parent, false);
// Get the position
resultp = data.get(position);
// Locate the TextViews in listview_item.xml
name = (TextView) itemView.findViewById(R.id.textView8_sellernm);
// Capture position and set results to the TextViews
name.setText(resultp.get(List_Search.SNAME));
price = (TextView) itemView.findViewById(R.id.textView19_bprice);
// Capture position and set results to the TextViews
price.setText(resultp.get(List_Search.SPRICE));
btn=(Button)itemView.findViewById(R.id.button3_book);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
resultp = data.get(position);
Intent intent = new Intent(context, ProfileActivity2.class);
// Pass all data rank
intent.putExtra("sname", resultp.get(List_Search.SNAME));
intent.putExtra("sprice", resultp.get(List_Search.SPRICE));
context.startActivity(intent);
}
});
return itemView;
}
}
context.startActivity(intent);
I think the error is at this line inside btn.setOnClickListener of getview block just use startActivity(intent);
I have a sliding image that extends pageradapter. At first it was working. But when i open new activity then press the back button the app is crashing and i've got this error :
java.lang.IllegalStateException: The application's PagerAdapter changed the adapter's contents without calling PagerAdapter#notifyDataSetChanged! Expected adapter item count: 10, found: 0 Pager id: malate.denise.chelsie.igphthesisbfinal:id/pager Pager class: class android.support.v4.view.ViewPager Problematic adapter: class malate.denise.chelsie.igphthesisbfinal.SlidingImage_Adapter
Here's my SlidingImage_Adapter.class
public class SlidingImage_Adapter extends PagerAdapter {
private ArrayList<Pictures> IMAGES;
private LayoutInflater inflater;
private Context context;
public SlidingImage_Adapter(Context context,ArrayList<Pictures> IMAGES) {
this.context = context;
this.IMAGES=IMAGES;
inflater = LayoutInflater.from(context);
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
#Override
public int getCount() {
return IMAGES.size();
}
#Override
public Object instantiateItem(ViewGroup view, int position) {
View imageLayout = inflater.inflate(R.layout.slidingimage_layout, view, false);
assert imageLayout != null;
final ImageView imageView = (ImageView) imageLayout
.findViewById(R.id.image);
new DownloadImageTask(imageView).execute(IMAGES.get(position).getPhotopath());
// imageView.setImageResource(IMAGES.get(position));
view.addView(imageLayout, 0);
return imageLayout;
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view.equals(object);
}
#Override
public void restoreState(Parcelable state, ClassLoader loader) {
notifyDataSetChanged();
}
#Override
public Parcelable saveState() {
return null;
}
and my AttractionInfo.class
public class AttractionInfo extends ActionBarActivity implements View.OnClickListener {
TextToSpeech tts;
TextView nameofplace,location,exact_address,operatinghours,info;
String nameofplace_s,location_s,exact_address_s,operatinghours_s,info_s,latlang_s,path_s,category_s;
ImageView play,rate,addtoplan,map;
ArrayList<Pictures> records;
private static ViewPager mPager;
private static int currentPage = 0;
String line=null;
private static int NUM_PAGES = 0;
Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_attraction_info);
map = (ImageView)findViewById(R.id.map);
map.setOnClickListener(this);
records=new ArrayList<Pictures>();
nameofplace = (TextView) findViewById(R.id.nameofplace);
info = (TextView) findViewById(R.id.info);
exact_address = (TextView) findViewById(R.id.exact_address);
location = (TextView)findViewById(R.id.location);
operatinghours=(TextView)findViewById(R.id.operatinghours);
play = (ImageView) findViewById(R.id.play);
rate = (ImageView) findViewById(R.id.rate);
addtoplan = (ImageView)findViewById(R.id.addtoplan);
addtoplan.setOnClickListener(this);
Bundle extras = getIntent().getExtras();
play.setOnClickListener(this);
rate.setOnClickListener(this);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(R.drawable.abc_ic_ab_back_mtrl_am_alpha);
toolbar.setNavigationIcon(R.drawable.abc_ic_ab_back_mtrl_am_alpha);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
onBackPressed();
}
});
getSupportActionBar().setDisplayShowTitleEnabled(false);
tts = new TextToSpeech(AttractionInfo.this, new TextToSpeech.OnInitListener() {
#Override
public void onInit(int status) {
if (status != TextToSpeech.ERROR){
tts.setLanguage(Locale.ENGLISH);
}
}
});
if (extras != null) {
nameofplace_s = extras.getString("name");
nameofplace.setText(nameofplace_s);
info_s = extras.getString("description");
info.setText(info_s);
exact_address_s = extras.getString("exactaddress");
exact_address.setText(exact_address_s);
location_s = extras.getString("location");
location.setText(location_s);
operatinghours_s=extras.getString("operatinghours");
operatinghours.setText(operatinghours_s);
latlang_s = extras.getString("latlang");
path_s=extras.getString("path");
category_s = extras.getString("category");
}
}
public void onStart() {
super.onStart();
fetchphoto bt = new fetchphoto();
bt.execute();
}
#Override
protected void onPause() {
if (tts != null){
tts.stop();
tts.shutdown();
}
super.onPause();
}
#Override
public void onClick(View v) {
if (v == play) {
String speech1 = nameofplace.getText().toString();
String speech2 = info.getText().toString();
String speech = speech1 + "." + speech2;
tts.speak(speech, TextToSpeech.QUEUE_FLUSH, null);
} else if (v==rate){
Intent myIntent = new Intent(this, ListOfReviews.class);
myIntent.putExtra("placename", nameofplace_s);
myIntent.putExtra("category",category_s);
startActivity(myIntent);
}else if(v==addtoplan){
Intent myIntent = new Intent(this, AddPlan.class);
myIntent.putExtra("placename", nameofplace_s);
myIntent.putExtra("category",category_s);
startActivity(myIntent);
}else if (v == map){
Intent myIntent = new Intent(this, Map.class);
myIntent.putExtra("placename", nameofplace_s);
myIntent.putExtra("category",category_s);
myIntent.putExtra("latlang",latlang_s);
myIntent.putExtra("address",exact_address_s);
myIntent.putExtra("path",path_s);
startActivity(myIntent);
}
}
private void init() {
SlidingImage_Adapter adapter = new SlidingImage_Adapter(this,records);
for(int i=0;i<records.size();i++){
Pictures pics = records.get(i);
String pic = pics.getPhotopath();
adapter.notifyDataSetChanged();
}
mPager = (ViewPager) findViewById(R.id.pager);
mPager.setAdapter(adapter);
CirclePageIndicator indicator = (CirclePageIndicator)
findViewById(R.id.indicator);
indicator.setViewPager(mPager);
final float density = getResources().getDisplayMetrics().density;
indicator.setRadius(5 * density);
NUM_PAGES =records.size();
// Auto start of viewpager
final Handler handler = new Handler();
final Runnable Update = new Runnable() {
public void run() {
if (currentPage == NUM_PAGES) {
currentPage = 0;
}
mPager.setCurrentItem(currentPage++, true);
}
};
Timer swipeTimer = new Timer();
swipeTimer.schedule(new TimerTask() {
#Override
public void run() {
handler.post(Update);
}
},5000, 5000);
// Pager listener over indicator
indicator.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
currentPage = position;
}
#Override
public void onPageScrolled(int pos, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int pos) {
}
});
}
private class fetchphoto extends AsyncTask<Void, Void, Void> {
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
protected void onPreExecute() {
super.onPreExecute();
}
protected Void doInBackground(Void... params) {
InputStream is = null;
String result = "";
nameValuePairs.add(new BasicNameValuePair("cityname", nameofplace_s));
try
{
records.clear();
HttpParams httpParams = new BasicHttpParams();
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://igph.esy.es/getphoto.php");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
Log.e("pass 1", "connection success ");
}
catch(Exception e)
{
Log.e("Fail 1", e.toString());
}
try
{
BufferedReader reader = new BufferedReader
(new InputStreamReader(is,"utf-8"),8);
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
result = sb.toString();
Log.e("pass 2", "connection success ");
}
catch(Exception e)
{
Log.e("Fail 2", e.toString());
}
//parse json data
try {
Log.i("tagconvertstr", "["+result+"]");
// Remove unexpected characters that might be added to beginning of the string
result = result.substring(result.indexOf(""));
JSONArray jArray = new JSONArray(result);
for (int i = 0; i < jArray.length(); i++) {
JSONObject json_data = jArray.getJSONObject(i);
Pictures p = new Pictures();
p.setPhotoname(json_data.getString("photo_name"));
p.setPlacename(json_data.getString("place_name"));
p.setCategory(json_data.getString("category"));
p.setPhotopath(json_data.getString("path"));
records.add(p);
}
} catch (Exception e) {
Log.e("ERROR", "Error pasting data " + e.toString());
}
return null;
}
protected void onPostExecute(Void result) {
// if (pd != null) pd.dismiss(); //close dialog
Log.e("size", records.size() + "");
init();
}
}
}
I've red some similar problems and learned that adding notifychanged may solved the problem but i dont where to place it. Hope you can help m . thanks
I am trying to load multiple url rss links from a text file. so far it works loading just one link from the file. i tried using a delimiter but it doesn't seem to work. any help is appreciated.
Code
StringBuilder rsslink = new StringBuilder();
InputStream is = getResources().openRawResource(R.raw.xmlsource);
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line = null;
try {
while ((line = br.readLine()) != null)
{
rsslink.append(line) ;
}
String [] arr = rsslink.toString().split(";");
for (int i = 0; i < arr.length; i++)
{
}
}
catch (IOException e)
{
e.printStackTrace();
}
String RSS_LINK = rsslink.toString();
Log.d(Constants.TAG, "Service started");
List<RssItem> rssItems = null;
try
{
XMLRssParser parser = new XMLRssParser();
rssItems = parser.parse(getInputStream(RSS_LINK));
}
catch (XmlPullParserException e)
{
Log.w(e.getMessage(), e);
}
catch (IOException e)
{
Log.w(e.getMessage(), e);
}
Bundle bundle = new Bundle();
bundle.putSerializable(ITEMS, (Serializable) rssItems);
ResultReceiver receiver = intent.getParcelableExtra(RECEIVER);
receiver.send(0, bundle);
}
public InputStream getInputStream(String link)
{
try
{
URL url = new URL(link);
return url.openConnection().getInputStream();
} catch (IOException e)
{
Log.w(Constants.TAG, "Exception while retrieving the input stream", e);
return null;
}
}
}
And this what the text file looks like with ";" as the delimiter
http://www.engadget.com/rss.xml; http://www.pcworld.com/index.rss; http://feeds.feedburner.com/SpoonForkBacon?format=xml;
RssFragment
public class RssFragment extends Fragment implements OnItemClickListener
{
private ProgressBar progressBar;
private ListView listView;
private View view;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setRetainInstance(true);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
if (view == null)
{
view = inflater.inflate(R.layout.fragment_layout, container, false);
progressBar = (ProgressBar) view.findViewById(R.id.progressBar);
listView = (ListView) view.findViewById(R.id.listView);
listView.setOnItemClickListener(this);
startService();
}
else
{
ViewGroup parent = (ViewGroup) view.getParent();
parent.removeView(view);
}
return view;
}
private void startService()
{
Intent intent = new Intent(getActivity(), RssService.class);
intent.putExtra(RssService.RECEIVER, resultReceiver);
getActivity().startService(intent);
}
private final ResultReceiver resultReceiver = new ResultReceiver(new Handler())
{
#SuppressWarnings("unchecked")
#Override
protected void onReceiveResult(int resultCode, Bundle resultData)
{
progressBar.setVisibility(View.GONE);
List<RssItem> items = (List<RssItem>) resultData.getSerializable(RssService.ITEMS);
if (items != null)
{
RssAdapter adapter = new RssAdapter(getActivity(), items);
listView.setAdapter(adapter);
}
else
{
Toast.makeText(getActivity(), "An error occured while downloading the rss feed.",
Toast.LENGTH_LONG).show();
}
};
};
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
RssAdapter adapter = (RssAdapter) parent.getAdapter();
RssItem item = (RssItem) adapter.getItem(position);
Uri uri = Uri.parse(item.getLink());
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
}
}
I have jsonParse method inside a onCreateView. I have 3 pages in my application. Every time, when I
open a page data created all of the time and I want to check therefore whether there is already something at the current position. Now, my question is what are recommended way to check a certain data already exists in the ArrayList.
Here is my code :
public class ScheduleSlideFragment extends Fragment {
final static String ARG_PAGE = "page";
private static ViewPager pager;
public static int pageNumber;
public static int PAGE_NUM = ScheduleMainActivity.NUM_PAGES ;
public ArrayList<ScheduleItem> data = new ArrayList<ScheduleItem>();
public int getPageNumber;
private void jsonParseData(int _getPageNumber) {
try {
BufferedReader jsonReader = new BufferedReader(new InputStreamReader(this
.getResources().openRawResource(R.raw.program)));
StringBuilder jsonBuilder = new StringBuilder();
for (String line = null; (line = jsonReader.readLine()) != null;) {
jsonBuilder.append(line).append("\n");
}
// Parse Json
JSONTokener tokener = new JSONTokener(jsonBuilder.toString());
JSONArray jsonArray = new JSONArray(tokener);
_getPageNumber = getPageNumber;
JSONObject jsonObject = jsonArray.getJSONObject(_getPageNumber);
String getDate = jsonObject.getString("date");
// data.add(new ScheduleItem(getDate));
JSONArray getFirstArray = new JSONArray(jsonObject.getString("events"));
for (int i = 0; i < getFirstArray.length(); i++) {
JSONObject getJSonObj = (JSONObject)getFirstArray.get(i);
String time = getJSonObj.getString("time");
//Log.e("Time Log",time);
String type = getJSonObj.getString("type");
String title = getJSonObj.getString("title");
int typeId = getJSonObj.getInt("type_id");
data.add(new ScheduleItem(time, title, typeId, getDate));
Log.e("Check Size", String.valueOf(data.size()));
/*
* Get Events
*/
if (typeId == 0) {
JSONArray getEventsArray = new JSONArray(getJSonObj.getString("events"));
for (int j = 0; j < getEventsArray.length(); j++) {
JSONObject getJSonEventobj = (JSONObject)getEventsArray.get(j);
int typeEventId = getJSonEventobj.getInt("type_id");
if (typeEventId == 1) {
String EventInfo = getJSonEventobj.getString("info");
String EventType = getJSonEventobj.getString("type");
String EventTitle = getJSonEventobj.getString("title");
String Eventtime = getJSonEventobj.getString("time");
data.add(new ScheduleItem(Eventtime, EventTitle, EventInfo,
typeEventId, getDate));
} else {
String EventType = getJSonEventobj.getString("type");
String EventTitle = getJSonEventobj.getString("title");
String Eventtime = getJSonEventobj.getString("time");
data.add(new ScheduleItem(Eventtime, EventTitle, typeEventId,
getDate));
}
}
}
}
//Log.e("Check Date", String.valueOf(data.get(_getPageNumber).getDate()));
} catch (Exception e) {
Log.getStackTraceString(e);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
ViewGroup rootView = (ViewGroup)inflater.inflate(R.layout.schedule, container, false);
getPageNumber = pageNumber;
/**
* JSON Parsing
*/
checker = getPageNumber + 1;
jsonParseData(getPageNumber);
/**
* Set header date
*/
((TextView)rootView.findViewById(R.id.tvDay)).setText(data.get(pageNumber).getDate().toString());
final ListView list = (ListView)rootView.findViewById(R.id.list);
BinderData bindingData = new BinderData(this.getActivity(), data);
list.setAdapter(bindingData);
list.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> a, View v, int position, long id) {
if (data.get(position).getItemType() == 0
|| data.get(position).getItemType() == 3
|| data.get(position).getItemType() == 2)
return;
Intent intent = new Intent(ScheduleSlideFragment.this.getActivity(),
ContentExtended.class);
intent.putExtra("title", data.get(position).getTitle());
intent.putExtra("content", data.get(position).getContent());
startActivity(intent);
}
});
ImageButton ibLeft = (ImageButton)rootView.findViewById(R.id.ibLeft);
if (pageNumber == 0)
ibLeft.setVisibility(View.INVISIBLE);
else
ibLeft.setVisibility(View.VISIBLE);
ibLeft.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (pager.getCurrentItem() > 0)
pager.setCurrentItem(pager.getCurrentItem() - 1, true);
}
});
ImageButton ibRight = (ImageButton)rootView.findViewById(R.id.ibRight);
if (pageNumber + 1 == PAGE_NUM)
ibRight.setVisibility(View.INVISIBLE);
else
ibRight.setVisibility(View.VISIBLE);
ibRight.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (pager.getCurrentItem() < PAGE_NUM)
pager.setCurrentItem(pager.getCurrentItem() + 1, true);
}
});
return rootView;
}
public static Fragment create(int position) {
Fragment fragment = new ScheduleSlideFragment();
Bundle args = new Bundle();
args.putInt(ARG_PAGE, position);
fragment.setArguments(args);
return fragment;
}
public static Fragment create(int position, ViewPager _pager) {
pageNumber = position;
pager = _pager;
Fragment fragment = new ScheduleSlideFragment();
Bundle args = new Bundle();
args.putInt(ARG_PAGE, position);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
pageNumber = getArguments().getInt(ARG_PAGE);
}
}
If the objects inside the ArrayList has the equal methods properly overridden and defined you can use the contains method.
Whenever you need to check if your List contains something, you should use Set instead of List. HashSet for example.