can't override onContextItemSelected in Fragment

can't override onContextItemSelected in Fragment - android

I'm trying to convert Activity to a fragment and can't override this methods : onCreateOptionsMenu,onOptionsItemSelected,onContextItemSelected.
,maybe some import statements are missing ? don't know what to do.Her is my Class file :
package com.wts.ui;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
public class MainFragment extends Fragment {
protected final static int REQUEST_CODE = 1;
public static WordsDBAdapter dbAdapter;
private CustomAdapter cDataAdapter;
private Button button;
private EditText editWord;
private EditText editTranslate;
private ListView listView;
private String selectedWord;
private Cursor cursor;
// context menu
private final static int IDM_EDIT = 101;
private final static int IDM_DELETE = 102;
private final static int IDM_INFO = 103;
// options menu
private static final int IDM_ABOUT = 201;
private static final int IDM_EXIT = 202;
private static final int IDM_SETTINGS = 203;
private static final int IDM_QUESTION = 204;
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
dbAdapter = new WordsDBAdapter(getActivity());
dbAdapter.open();
displayListView();
registerForContextMenu(listView);
// ================ListView onLongClick========================
listView.setOnItemLongClickListener(new OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
cursor = (Cursor) listView.getItemAtPosition(arg2);
selectedWord = cursor.getString(WordsDBAdapter.ID_COL);
return false;
}
});
// ================Button onClick========================
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
String word = editWord.getText().toString();
String translate = editTranslate.getText().toString();
if (word.length() > 0 && translate.length() >= 0) {
Cursor cursor = dbAdapter.fetchWordsByName(word);// chek is
// word
// repeat
if (cursor.moveToFirst()) {
Toast.makeText(getActivity().getApplicationContext(),
getResources().getString(R.string.word_exist),
Toast.LENGTH_SHORT).show();
} else if (!CheckWordInput(word)
|| !CheckTranslateInput(translate)) {
Toast.makeText(
getActivity().getApplicationContext(),
getResources().getString(
R.string.incorrect_input),
Toast.LENGTH_SHORT).show();
} else {
dbAdapter.insertWord(word, translate, " ",
String.valueOf(false), 0, 0, new Date());
displayListView();
editWord.setText("");
editTranslate.setText("");
}
}
}
});
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_main, container, false);
button = (Button) view.findViewById(R.id.buttonAddWord);
listView = (ListView) view.findViewById(R.id.listWords);
editWord = (EditText) view.findViewById(R.id.editWord);
editTranslate = (EditText) view.findViewById(R.id.editTranslate);
return view;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
// setContentView(R.layout.activity_main);
}
#Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
if (v.getId() == R.id.listWords) {
String[] menuItems = getResources().getStringArray(
R.array.contextMenuItems);
menu.add(Menu.NONE, IDM_EDIT, Menu.NONE,
menuItems[StartActivity.CONTEXT_MENU_EDIT]);
menu.add(Menu.NONE, IDM_INFO, Menu.NONE,
menuItems[StartActivity.CONTEXT_MENU_INFO]);
menu.add(Menu.NONE, IDM_DELETE, Menu.NONE,
menuItems[StartActivity.CONTEXT_MENU_DELETE]);
}
}
//
#Override
public boolean onContextItemSelected(MenuItem item) {
switch (item.getItemId()) {
case IDM_EDIT: {
Intent intent = new Intent(getActivity(), EditActivity.class);
intent.putExtra(getResources().getString(R.string.fstRow),
cursor.getString(WordsDBAdapter.WORD_COL));
intent.putExtra(getResources().getString(R.string.scndRow),
cursor.getString(WordsDBAdapter.TRANS_COL));
intent.putExtra(getResources().getString(R.string.thrdRow),
cursor.getString(WordsDBAdapter.DESC_COL));
startActivityForResult(intent, REQUEST_CODE);
}
break;
case IDM_DELETE:
dbAdapter.deleteWord(selectedWord);
displayListView();
break;
case IDM_INFO: {
Intent intent = new Intent(getActivity(), InformationActivity.class);
for (int i = 1; i <= InformationActivity.nListItems; i++)
intent.putExtra(String.valueOf(i), cursor.getString(i));
startActivity(intent);
}
break;
default:
return super.onContextItemSelected(item);
}
return true;
}
private void displayListView() {
// Cursor cursor = dbAdapter.fetchAllTranslated();
Cursor cursor = dbAdapter.fetchAllTranslated();
String[] columns = new String[] { WordsDBAdapter.KEY_WORD,
WordsDBAdapter.KEY_TRANSLATION, WordsDBAdapter.KEY_SUCCEEDED, };
int[] to = new int[] { R.id.textViewTranslate, R.id.textViewWord,
R.id.textViewSuccessPoints };
cDataAdapter = new CustomAdapter(getActivity(), R.layout.word_info,
cursor, columns, to);
listView.setAdapter(cDataAdapter);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.activity_main, menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case IDM_ABOUT: {
Intent intent = new Intent(getActivity(), AboutActivity.class);
startActivity(intent);
break;
}
case IDM_EXIT: {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
getActivity().finish();
break;
}
case IDM_SETTINGS: {
Intent intent = new Intent(getActivity(), SettingsActivity.class);
startActivity(intent);
break;
}
case IDM_QUESTION: {
if (!StartActivity.isMainActivitySart)
getActivity().onBackPressed();
else {
Intent intent = new Intent(getActivity(),
QuestionActivity.class);
startActivity(intent);
}
}
break;
}
return true;
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (resultCode == Activity.RESULT_OK && requestCode == REQUEST_CODE) {
if (intent.hasExtra(getResources().getString(R.string.fstRow))) {
dbAdapter.changeValue(
selectedWord,
intent.getExtras().getString(
getResources().getString(R.string.fstRow)),
intent.getExtras().getString(
getResources().getString(R.string.scndRow)),
intent.getExtras().getString(
getResources().getString(R.string.thrdRow)),
null, null, null, null);
displayListView();
}
}
}
#Override
public void onResume() {
super.onResume();
SettingsManager.setPreferedLanguage(getActivity());// set language
displayListView();
}
public static boolean CheckTranslateInput(String str) {
Pattern inputPattern = Pattern.compile("[\\p{L} -]{0,25}");
Matcher inputMatcher = inputPattern.matcher(str);
return inputMatcher.matches();
}
public static boolean CheckWordInput(String str) {
Pattern inputPattern = Pattern.compile("[\\p{L} -]{1,25}");
Matcher inputMatcher = inputPattern.matcher(str);
return inputMatcher.matches();
}
#Override
public void onDetach() {
super.onDetach();
dbAdapter.close();
}
}

You have to think about what you want your Fragment to be - Fragment or SherlockFragment?
You import this:
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
And so, your overrides aren't overrides because Menu & friends are different classes right now than what Fragment needs - they are ActionBarSherlock's classes.
If you extend SherlockFragment instead, your overrides should work, and it is recommended to extend SherlockFragment if you are using ActionBarSherlock (which based on your tags, you are).
If you want to keep this as a regular fragment, then import:
android.view.Menu
android.view.MenuItem
android.view.MenuInflater

Related

ListView displays data twice

I am working on a small application to save the data of the book (such as the name of the book, the type of the book, the author of the book and the year of publication) in a database, but when the data is returned from the databases using CursorLoader It's shown twice in ListView
This is a code of AddBook activity.
package training.android.com.librarycard;
import android.app.AlertDialog;
import android.app.LoaderManager;
import android.content.ContentValues;
import android.content.CursorLoader;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
import training.android.com.librarycard.Database.Database;
import training.android.com.librarycard.Database.LibraryCardContract;
public class AddBook extends AppCompatActivity
implements LoaderManager.LoaderCallbacks<Cursor> {
private static final int EXISTING_BOOK_LOADER = 0;
Spinner mBookType;
EditText mBookTitle, mBookAuthor, mBookPublishYear;
String bookType;
int position;
private boolean bookHasChanged = false;
private Uri currentBookUri;
private View.OnTouchListener touchListener = new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
bookHasChanged = true;
return false;
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_book);
Intent intent = getIntent();
if (intent != null) {
currentBookUri = intent.getData();
if (currentBookUri == null) {
setTitle("Add a book");
invalidateOptionsMenu();
} else {
setTitle("Edit a book");
getLoaderManager().initLoader(EXISTING_BOOK_LOADER, null, this);
}
}
mBookType = findViewById(R.id.spinner);
mBookTitle = findViewById(R.id.book_title);
mBookAuthor = findViewById(R.id.book_author);
mBookPublishYear = findViewById(R.id.publish_year);
mBookType.setOnTouchListener(touchListener);
mBookAuthor.setOnTouchListener(touchListener);
mBookTitle.setOnTouchListener(touchListener);
mBookPublishYear.setOnTouchListener(touchListener);
setupBookTypeSpinner();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.home, menu);
return true;
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
if (currentBookUri == null) {
MenuItem menuItem = menu.findItem(R.id.action_delete);
menuItem.setVisible(false);
}
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
switch (id) {
case R.id.action_save:
setBook();
finish();
return true;
case R.id.action_delete:
showDeleteConfirmationDialog();
return true;
case android.R.id.home:
if (!bookHasChanged) {
NavUtils.navigateUpFromSameTask(AddBook.this);
return true;
}
DialogInterface.OnClickListener discardButtonClickListener
= new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
NavUtils.navigateUpFromSameTask(AddBook.this);
}
};
showUnsavedChangeDialog(discardButtonClickListener);
return true;
}
return super.onOptionsItemSelected(item);
}
private void showUnsavedChangeDialog(DialogInterface.OnClickListener discardButtonClickListener) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Discard your changes and quit editing?");
builder.setPositiveButton("Discard", discardButtonClickListener);
builder.setNegativeButton("Keep editing", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
if (dialog != null)
dialog.dismiss();
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
private void showDeleteConfirmationDialog() {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Delete this book ?");
builder.setPositiveButton("Delete", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
deleteBook();
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
if (dialog != null)
dialog.dismiss();
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
private void deleteBook() {
if (currentBookUri != null) {
int rowDeleted = getContentResolver().delete(currentBookUri, null, null);
if (rowDeleted == 0)
Toast.makeText(this, "Delete book failed", Toast.LENGTH_SHORT).show();
else
Toast.makeText(this, "Delete book successful", Toast.LENGTH_SHORT).show();
}
finish();
}
public void setupBookTypeSpinner() {
final ArrayAdapter<CharSequence> bookTypeAdapter = ArrayAdapter.createFromResource(
this, R.array.books_type, R.layout.support_simple_spinner_dropdown_item);
bookTypeAdapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
mBookType.setAdapter(bookTypeAdapter);
mBookType.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
bookType = parent.getSelectedItem().toString();
position = parent.getSelectedItemPosition();
Log.i("BookTypeSelection", bookType+"");
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
public void setBook() {
String bookTitle = mBookTitle.getText().toString().trim();
String bookAuthor = mBookAuthor.getText().toString().trim();
String publishYear = mBookPublishYear.getText().toString().trim();
if (currentBookUri == null && TextUtils.isEmpty(bookTitle) && TextUtils.isEmpty(bookAuthor)
&& TextUtils.isEmpty(publishYear))
return;
Database database = new Database(this);
SQLiteDatabase db = database.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(LibraryCardContract.LibraryCard.COLUMN_BOOK_TITLE, bookTitle);
values.put(LibraryCardContract.LibraryCard.COLUMN_BOOK_AUTHOR, bookAuthor);
values.put(LibraryCardContract.LibraryCard.COLUMN_BOOK_PUBLISH_YEAR, publishYear);
values.put(LibraryCardContract.LibraryCard.COLUMN_BOOK_TYPE, bookType);
if (currentBookUri == null) {
Uri uri = getContentResolver().insert(LibraryCardContract.LibraryCard.CONTENT_URI, values);
if (uri == null) {
Toast.makeText(this, "Error with saving book", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, "Book saved", Toast.LENGTH_SHORT).show();
}
} else {
int rowAffected = getContentResolver().update(currentBookUri, values, null, null);
if (rowAffected == 0) {
Toast.makeText(this, "Error with saving book", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, "Book saved", Toast.LENGTH_SHORT).show();
}
}
db.insert(LibraryCardContract.LibraryCard.TABLE_NAME, null, values);
Toast.makeText(this, "Insert new book", Toast.LENGTH_SHORT).show();
}
#Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
String [] projection = {
LibraryCardContract.LibraryCard.COLUMN_BOOK_TITLE,
LibraryCardContract.LibraryCard.COLUMN_BOOK_TYPE,
LibraryCardContract.LibraryCard.COLUMN_BOOK_AUTHOR,
LibraryCardContract.LibraryCard.COLUMN_BOOK_PUBLISH_YEAR };
return new CursorLoader(this,currentBookUri,projection,
null,null,null);
}
#Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
if(data.moveToFirst()){
String title = data.getString(
data.getColumnIndexOrThrow(LibraryCardContract.LibraryCard.COLUMN_BOOK_TITLE));
String type = data.getString(
data.getColumnIndexOrThrow(LibraryCardContract.LibraryCard.COLUMN_BOOK_TYPE));
String publishYear = data.getString(
data.getColumnIndexOrThrow(LibraryCardContract.LibraryCard.COLUMN_BOOK_PUBLISH_YEAR));
String author = data.getString(
data.getColumnIndexOrThrow(LibraryCardContract.LibraryCard.COLUMN_BOOK_AUTHOR));
mBookTitle.setText(title);
mBookAuthor.setText(author);
mBookType.setSelection(position);
mBookPublishYear.setText(publishYear);
}
}
#Override
public void onLoaderReset(Loader<Cursor> loader) {
mBookTitle.setText("");
mBookType.setSelection(position);
mBookAuthor.setText("");
mBookPublishYear.setText("");
}
#Override
public void onBackPressed() {
if(!bookHasChanged){
super.onBackPressed();
return;
}
DialogInterface.OnClickListener discardButtonClickListener =
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
};
showUnsavedChangeDialog(discardButtonClickListener);
}
}
And this is a code of Home activity that contains a listView to
display the data.
package training.android.com.librarycard;
import android.app.LoaderManager;
import android.content.ContentUris;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import java.util.ArrayList;
import java.util.List;
import training.android.com.librarycard.Database.Database;
import training.android.com.librarycard.Database.LibraryCardContract;
import training.android.com.librarycard.Models.BookCursorAdapter;
import training.android.com.librarycard.Models.BookDetail;
public class Home extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener, LoaderManager.LoaderCallbacks<Cursor> {
private static final int BOOK_LOADER = 0;
private ListView mBookList;
private BookCursorAdapter cursorAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mBookList = findViewById(R.id.books_rv);
cursorAdapter = new BookCursorAdapter(this, null);
mBookList.setAdapter(cursorAdapter);
mBookList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(Home.this, AddBook.class);
Uri currentPetUri = ContentUris.withAppendedId(LibraryCardContract.LibraryCard.CONTENT_URI, id);
intent.setData(currentPetUri);
startActivity(intent);
}
});
getLoaderManager().initLoader(BOOK_LOADER, null, this);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(getBaseContext(), AddBook.class);
startActivity(intent);
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
switch (id) {
case R.id.delete_all_books:
deleteAllBooks();
return true;
}
//noinspection SimplifiableIfStatement
return super.onOptionsItemSelected(item);
}
private void deleteAllBooks() {
int rowDeleted = getContentResolver().delete(LibraryCardContract.LibraryCard.CONTENT_URI,
null, null);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
String[] projection = {
LibraryCardContract.LibraryCard._ID,
LibraryCardContract.LibraryCard.COLUMN_BOOK_TITLE,
LibraryCardContract.LibraryCard.COLUMN_BOOK_AUTHOR,
LibraryCardContract.LibraryCard.COLUMN_BOOK_TYPE,
LibraryCardContract.LibraryCard.COLUMN_BOOK_PUBLISH_YEAR};
return new CursorLoader(this, LibraryCardContract.LibraryCard.CONTENT_URI,
projection,
null,
null,
null);
}
#Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
cursorAdapter.swapCursor(data);
}
#Override
public void onLoaderReset(Loader<Cursor> loader) {
cursorAdapter.swapCursor(null);
}
}
> This is a code of **BookCursorAdapter** class.
package training.android.com.librarycard.Models;
import android.content.Context;
import android.database.Cursor;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CursorAdapter;
import android.widget.TextView;
import training.android.com.librarycard.Database.LibraryCardContract;
import training.android.com.librarycard.R;
/**
* Created by Hassan on 4/9/2018.
*/
public class BookCursorAdapter extends CursorAdapter {
public BookCursorAdapter(Context context, Cursor c) {
super(context, c, 0);
}
#Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return LayoutInflater.from(context)
.inflate(R.layout.book_list,parent,false);
}
#Override
public void bindView(View view, Context context, Cursor cursor) {
TextView bookTitle = view.findViewById(R.id.book_name_tv);
TextView bookAuthor = view.findViewById(R.id.author_tv);
TextView bookType = view.findViewById(R.id.book_type_tv);
TextView publishYear = view.findViewById(R.id.publish_year_tv);
String title = cursor.getString(
cursor.getColumnIndexOrThrow(LibraryCardContract.LibraryCard.COLUMN_BOOK_TITLE));
String type = cursor.getString(
cursor.getColumnIndexOrThrow(LibraryCardContract.LibraryCard.COLUMN_BOOK_TYPE));
String year = cursor.getString(
cursor.getColumnIndexOrThrow(LibraryCardContract.LibraryCard.COLUMN_BOOK_PUBLISH_YEAR));
String author = cursor.getString(
cursor.getColumnIndexOrThrow(LibraryCardContract.LibraryCard.COLUMN_BOOK_AUTHOR));
bookAuthor.setText(author);
bookTitle.setText(title);
bookType.setText(type);
publishYear.setText(year);
}
#Override
public int getCount() {
return super.getCount();
}
}
Screenshot of the application
enter image description here

How can I show a DialogFragment from a BasePreferenceActivity?

I have a SettingsPreferenceActivity that Extends BasePreferenceActivity, and in that list of preferences I have an item called Upgrade. When clicking this upgrade item, I need to show a DialogFragment which is my upgrade screen. Here is the code I'm trying to use...
DialogFragment dialogFragment =
UpgradeDialogFragment.dialogWithEntry("leftMenuUpgrade");
dialogFragment.show(this.getSupportFragmentManager(), "purchase");
I'm getting an error saying "Cannot resolve method getSupportFragmentManager()".
I've tried using getFragmentManager() as well, and I get the same issue.
How can I show this DIalogFragment from my BasePreferenceActivity?
The old developers used this code...
Intent data = new Intent();
data.putExtra(EXTRA_UPGRADE, true);
setResult(RESULT_OK, data);
finish();
but it doesn't work. Nothing happens at all, so I'm trying to fix this for a client.
Full Activity...
package com.tp.activity;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceClickListener;
import android.preference.PreferenceCategory;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.NavUtils;
import android.support.v4.app.FragmentManager;
import android.view.MenuItem;
import com.tp.Constants;
import com.tp.HubApplication;
import com.tp.MixpanelConstants;
import com.tp.R;
import com.tp.VariantConstants;
import com.tp.app.settings.ProfileActivity;
import com.tp.auth.Group;
import com.tp.auth.Session;
import com.tp.payment.PurchaseDialogFragment;
import com.tp.payment.UpgradeDialogFragment;
import com.tp.payment.UpgradePolicy;
import android.support.v4.app.DialogFragment;
import com.tp.payment.UpgradeDialogFragment;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import javax.inject.Inject;
public class SettingsPreferenceActivity extends BasePreferenceActivity {
private static final String MANAGE_HUBS_KEY = "MANAGE_HUBS";
private static final String PROFILE_KEY = "PROFILE";
private static final String UPGRADE_KEY = "UPGRADE";
private static final String CALENDAR_KEY = "CALENDAR";
private static final String FEEDBACK_KEY = "FEEDBACK";
private static final String HELP_KEY = "HELP";
private static final int INTENT_SEND_FEEDBACK_REQUEST = 23986;
public static final String EXTRA_UPGRADE = "upgrade";
#Inject
Session mSession;
#Inject
UpgradePolicy mUpgradePolicy;
private HubApplication mApp;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mApp = (HubApplication) getApplication();
addPreferencesFromResource(R.xml.settings);
findPreference(PROFILE_KEY).setOnPreferenceClickListener(new OnPreferenceClickListener() {
#Override
public boolean onPreferenceClick(Preference preference) {
Intent intent = new Intent(SettingsPreferenceActivity.this, ProfileActivity.class);
startActivity(intent);
return true;
}
});
if (mUpgradePolicy.shouldPromoteUpgrade()) {
findPreference(UPGRADE_KEY).setOnPreferenceClickListener(new OnPreferenceClickListener() {
#Override
public boolean onPreferenceClick(Preference preference) {
// Intent data = new Intent();
// data.putExtra(EXTRA_UPGRADE, true);
// setResult(RESULT_OK, data);
// finish();
DialogFragment dialogFragment =
UpgradeDialogFragment.dialogWithEntry("leftMenuUpgrade");
dialogFragment.show(getSupportFragmentManager(), EXTRA_UPGRADE);
return true;
}
});
} else {
findPreference(UPGRADE_KEY).setTitle("Upgraded");
}
findPreference(CALENDAR_KEY).setOnPreferenceClickListener(new OnPreferenceClickListener() {
#Override
public boolean onPreferenceClick(Preference preference) {
Intent intent = new Intent(SettingsPreferenceActivity.this, CalendarSettingsActivity.class);
startActivity(intent);
return true;
}
});
findPreference(FEEDBACK_KEY).setOnPreferenceClickListener(new OnPreferenceClickListener() {
#Override
public boolean onPreferenceClick(Preference preference) {
mApp.getMixPanel().track(MixpanelConstants.FEEDBACK_CLICKED, null);
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("message/rfc822");
intent.putExtra(Intent.EXTRA_EMAIL, new String[]{VariantConstants.FEEDBACK_EMAIL});
try {
startActivityForResult(intent, INTENT_SEND_FEEDBACK_REQUEST);
} catch (ActivityNotFoundException e) {
}
return true;
}
});
findPreference(HELP_KEY).setOnPreferenceClickListener(new OnPreferenceClickListener() {
#Override
public boolean onPreferenceClick(Preference preference) {
Intent intent = new Intent(SettingsPreferenceActivity.this, HelpActivity.class);
startActivity(intent);
return true;
}
});
getSupportActionBar().setTitle(R.string.settings_settings);
}
#Override
protected void onResume() {
super.onResume();
PreferenceCategory hubCategory = (PreferenceCategory) findPreference(MANAGE_HUBS_KEY);
hubCategory.removeAll();
List<Group> allGroups = new ArrayList<Group>(mSession.getGroups());
Collections.sort(allGroups, new Comparator<Group>() {
#Override
public int compare(Group lhs, Group rhs) {
return lhs.getName().compareTo(rhs.getName());
}
});
for (final Group group : allGroups) {
Preference groupPref = new Preference(this);
groupPref.setTitle(group.getName());
groupPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
#Override
public boolean onPreferenceClick(Preference preference) {
Intent intent = new Intent(SettingsPreferenceActivity.this, GroupSettingsActivity.class);
intent.putExtra(Constants.ITEM_ID, group.getId());
startActivity(intent);
return true;
}
});
hubCategory.addPreference(groupPref);
}
Preference createHubPref = new Preference(this);
createHubPref.setTitle(R.string.settings_create_hub);
createHubPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
#Override
public boolean onPreferenceClick(Preference preference) {
Intent intent = new Intent(SettingsPreferenceActivity.this, AddGroupActivity.class);
startActivity(intent);
return true;
}
});
hubCategory.addPreference(createHubPref);
}
#Override
public boolean onMenuItemSelected(int featureId, MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
finish();
return true;
default:
return super.onMenuItemSelected(featureId, item);
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == INTENT_SEND_FEEDBACK_REQUEST && resultCode == Activity.RESULT_OK) {
mApp.getMixPanel().track(MixpanelConstants.FEEDBACK_SENT, null);
}
}
}

Regarding migrating searchview on appcompat

I am migrating search view Item provided in action bar using support library .Here I have done as mentioned in doc but still it is giving error while creating options menu.Please tell me where I have done wrong.Here is my code.
contacts_list_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:com.utteru.ui="http://schemas.android.com/apk/res-auto"
xmlns:yourapp="http://schemas.android.com/tools">
<!-- The search menu item. Honeycomb and above uses an ActionView or specifically a SearchView
which expands within the Action Bar directly. Note the initial collapsed state set using
collapseActionView in the showAsAction attribute. -->
<group
android:id="#+id/main_menu_group">
<item
android:id="#+id/menu_search"
android:actionViewClass="android.widget.SearchView"
android:icon="#drawable/ic_action_search"
yourapp:showAsAction="ifRoom|collapseActionView"
yourapp:actionViewClass="android.support.v7.widget.SearchView"
android:title="#string/menu_search" />
</group>
<group
android:id="#+id/refresh_group">
<item
android:id="#+id/refresh"
android:icon="#android:drawable/ic_popup_sync"
yourapp:showAsAction="ifRoom|collapseActionView"
yourapp:actionViewClass="android.support.v7.widget.SearchView"
android:title="#string/menu_search" />
</group>
</menu>
ContactsListFragment.java
import android.accounts.Account;
import android.app.SearchManager;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.res.AssetFileDescriptor;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.Contacts;
import android.provider.ContactsContract.Contacts.Photo;
import android.support.v4.BuildConfig;
import android.support.v4.app.ListFragment;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.widget.SearchView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.FileDescriptor;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
public class ContactsListFragment extends ListFragment {
private static final String TAG = "ContactsAccessFragment";
private static final String STATE_PREVIOUSLY_SELECTED_KEY =
"com.Utteru.ui.SELECTED_ITEM";
ArrayList<AccessContactDto> allcontacts;
ArrayList<AccessContactDto> databasecontacts;
TextView textempty;
public Context mContext;
private AccessContactAdapter mAdapter;
private ImageLoader mImageLoader; // Handles loading the contact image in a background thread
// Stores the previously selected search item so that on a configuration change the same item
// can be reselected again
private int mPreviouslySelectedSearchItem = 0;
// Whether or not the search query has changed since the last time the loader was refreshed
private boolean mSearchQueryChanged;
// Whether or not this fragment is showing in a two-pane layout
private boolean mIsTwoPaneLayout;
// Whether or not this is a search result view of this fragment, only used on pre-honeycomb
// OS versions as search results are shown in-line via Action Bar search from honeycomb onward
private boolean mIsSearchResultView = false;
/**
* Fragments require an empty constructor.
*/
public ContactsListFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mIsTwoPaneLayout = getResources().getBoolean(R.bool.has_two_panes);
getActivity().setTitle("");
if (savedInstanceState != null) {
// If we're restoring state after this fragment was recreated then
// retrieve previous search term and previously selected search
// result.
mPreviouslySelectedSearchItem =
savedInstanceState.getInt(STATE_PREVIOUSLY_SELECTED_KEY, 0);
}
mImageLoader = new ImageLoader(getActivity(), CommonUtility.getListPreferredItemHeight(getActivity())) {
#Override
protected Bitmap processBitmap(Object data) {
// This gets called in a background thread and passed the data from
// ImageLoader.loadImage().
return loadContactPhotoThumbnail((String) data, getImageSize());
}
};
// Set a placeholder loading image for the image loader
mImageLoader.setLoadingImage(R.drawable.ic_contact_picture_holo_light);
// Add a cache to the image loader
mImageLoader.addImageCache(getActivity().getSupportFragmentManager(), 0.1f);
mContext = getActivity().getBaseContext();
new loadData().execute();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the list fragment layout
View all_contacts_view = inflater.inflate(R.layout.contact_list_fragment, container, false);
textempty = (TextView)all_contacts_view.findViewById(android.R.id.empty);
textempty.setText("No contacts found");
return all_contacts_view;
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
AccessContactDto cdto = (AccessContactDto) l.getItemAtPosition(position);
Log.e("number on click",""+cdto.getMobile_number());
cdto=UserService.getUserServiceInstance(mContext).getAccessConDataByNumber(cdto.getMobile_number());
if(cdto==null)
cdto = (AccessContactDto) l.getItemAtPosition(position);
else
Log.e("mumber not mull from db","number not null from db");
Intent detailsActivity = new Intent(mContext, ContactDetailActivity.class);
detailsActivity.putExtra("selected_con", cdto);
startActivity(detailsActivity);
getActivity().overridePendingTransition(R.anim.animation1, R.anim.animation2);
super.onListItemClick(l, v, position, id);
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// Let this fragment contribute menu items
setHasOptionsMenu(true);
// Set up ListView, assign adapter and set some listeners. The adapter was previously
// created in onCreate().
setListAdapter(mAdapter);
getListView().setOnScrollListener(new AbsListView.OnScrollListener() {
#Override
public void onScrollStateChanged(AbsListView absListView, int scrollState) {
// Pause image loader to ensure smoother scrolling when flinging
if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
mImageLoader.setPauseWork(true);
} else {
mImageLoader.setPauseWork(false);
}
}
#Override
public void onScroll(AbsListView absListView, int i, int i1, int i2) {
}
});
if (mIsTwoPaneLayout) {
getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
}
if (mPreviouslySelectedSearchItem == 0) {
}
}
#Override
public void onPause() {
super.onPause();
mImageLoader.setPauseWork(false);
}
#Override
public void onPrepareOptionsMenu(Menu menu) {
menu.clear();
getActivity().getMenuInflater().inflate(R.menu.contact_list_menu, menu);
MenuItem searchItem = menu.findItem(R.id.menu_search);
menu.setGroupVisible(R.id.main_menu_group, true);
if (mIsSearchResultView) {
searchItem.setVisible(false);
}
if (Utils.hasHoneycomb()) {
final SearchManager searchManager =
(SearchManager) getActivity().getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getActivity().getComponentName()));
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String queryText) {
return true;
}
#Override
public boolean onQueryTextChange(String newText) {
Log.e("on query text change ","on query text change");
if (newText != null && !newText.equals(""))
{
ArrayList<AccessContactDto> filterList = new ArrayList<AccessContactDto>();
for (AccessContactDto a : allcontacts) {
if (a.getDisplay_name().toLowerCase().startsWith(newText.toLowerCase())) {
filterList.add(a);
continue;
}
getListView().setAdapter(new AccessContactAdapter(filterList, getActivity(), mImageLoader));
}
return true;
}
else{
getListView().setAdapter(new AccessContactAdapter(allcontacts, getActivity(), mImageLoader));
return true;
}
}
});
}
super.onPrepareOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_search:
if (!Utils.hasHoneycomb()) {
getActivity().onSearchRequested();
}
break;
case R.id.refresh:
if (CommonUtility.isNetworkAvailable(getActivity())) {
final Account account = new Account(Constants.ACCOUNT_NAME, Constants.ACCOUNT_TYPE);
Bundle bundle = new Bundle();
bundle.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true);
bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
ContentResolver.requestSync(account, ContactsContract.AUTHORITY, bundle);
mAdapter.notifyDataSetChanged();
// new CountDownTimer(5000, 1000) {
// #Override
// public void onTick(long millisUntilFinished) {
// }
//
// #Override
// public void onFinish() {
//
// }
// }.start();
} else {
Toast.makeText(getActivity(), "Internet Connection Required!!", Toast.LENGTH_SHORT).show();
}
break;
}
return super.onOptionsItemSelected(item);
}
private Bitmap loadContactPhotoThumbnail(String photoData, int imageSize) {
if (!isAdded() || getActivity() == null) {
return null;
}
AssetFileDescriptor afd = null;
try {
Uri thumbUri;
if (Utils.hasHoneycomb()) {
thumbUri = Uri.parse(photoData);
} else {
final Uri contactUri = Uri.withAppendedPath(Contacts.CONTENT_URI, photoData);
thumbUri = Uri.withAppendedPath(contactUri, Photo.CONTENT_DIRECTORY);
}
afd = getActivity().getContentResolver().openAssetFileDescriptor(thumbUri, "r");
FileDescriptor fileDescriptor = afd.getFileDescriptor();
if (fileDescriptor != null) {
return ImageLoader.decodeSampledBitmapFromDescriptor(
fileDescriptor, imageSize, imageSize);
}
} catch (FileNotFoundException e) {
if (BuildConfig.DEBUG) {
Log.d(TAG, "Contact photo thumbnail not found for contact " + photoData
+ ": " + e.toString());
}
} finally {
if (afd != null) {
try {
afd.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return null;
}
public ArrayList<AccessContactDto> readContactsNew() {
ArrayList<AccessContactDto> list = new ArrayList<AccessContactDto>();
AccessContactDto adto;
Cursor phones = mContext.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
while (phones.moveToNext())
{
String name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
String photouri= phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.PHOTO_URI));
String contact_id= phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone._ID));
Uri con_uri= Contacts.getLookupUri(phones.getLong(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone._ID)), phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.LOOKUP_KEY)));
adto = new AccessContactDto(contact_id, name, null, phoneNumber, null, photouri, con_uri.toString(),null,null,null);
list.add(adto);
}
phones.close();
return list;
}
public class loadData extends AsyncTask<Void, Void, Void>
{
#Override
protected void onPostExecute(Void aVoid) {
mAdapter = new AccessContactAdapter(allcontacts, getActivity(), mImageLoader);
if(getActivity()!=null)
getListView().setAdapter(mAdapter);
super.onPostExecute(aVoid);
}
#Override
protected Void doInBackground(Void... params) {
allcontacts = readContactsNew();
// databasecontacts = UserService.getUserServiceInstance(mContext).getAllAccessContacts();
// allcontacts.removeAll(databasecontacts);
// allcontacts.addAll(databasecontacts);
Collections.sort(allcontacts, new Comparator<AccessContactDto>() {
#Override
public int compare(AccessContactDto lhs, AccessContactDto rhs) {
return lhs.getDisplay_name().compareToIgnoreCase(rhs.getDisplay_name());
}
});
return null;
}
}
}
ContactsListActivity.java
import android.accounts.AccountManager;
import android.content.Intent;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.PagerTabStrip;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;
import com.viewpagerindicator.IconPagerAdapter;
public class ContactsListActivity extends ActionBarActivity {
DemoCollectionPagerAdapter mDemoCollectionPagerAdapter;
ViewPager mViewPager;
private ContactDetailFragment mContactDetailFragment;
private boolean isTwoPaneLayout;
AccountManager mAccountManager;
Boolean checkAccount;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDemoCollectionPagerAdapter = new DemoCollectionPagerAdapter(getSupportFragmentManager());
getSupportActionBar().setDisplayHomeAsUpEnabled(false);
getSupportActionBar().setBackgroundDrawable(new ColorDrawable(R.color.purple));
getSupportActionBar().setIcon(new ColorDrawable(getResources().getColor(android.R.color.transparent)));
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mDemoCollectionPagerAdapter);
isTwoPaneLayout = getResources().getBoolean(R.bool.has_two_panes);
PagerTabStrip pagerTabStrip = (PagerTabStrip) findViewById(R.id.pager_title_strip);
pagerTabStrip.setTextSpacing(0);
pagerTabStrip.setPadding(0, 0, 0, 10);
pagerTabStrip.setTextSize(1, 20);
}
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.remove("android:support:fragments");
}
#Override
public void onBackPressed() {
startActivity(new Intent(ContactsListActivity.this, MenuScreen.class).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK|Intent.FLAG_ACTIVITY_NEW_TASK));
this.finish();
overridePendingTransition(R.anim.card_rotate_in, R.anim.card_rotate_out);
}
#Override
protected void onDestroy() {
if(CommonUtility.dialog!=null){
CommonUtility.dialog.dismiss();
}
super.onDestroy();
}
#Override
public boolean onSearchRequested() {
boolean isSearchResultView = false;
return !isSearchResultView && super.onSearchRequested();
}
public static class DemoCollectionPagerAdapter extends FragmentPagerAdapter implements IconPagerAdapter {
protected static final String[] CONTENT = new String[]{"All Contacts", "Access Contacts"};
protected final int[] ICONS = new int[]{
R.drawable.all_contact,
R.drawable.access_contacts
};
private int mCount = CONTENT.length;
public DemoCollectionPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
// All Contacts Fragment
return new ContactsListFragment();
case 1:
// Access Contacts Fragment
return new ContactsAccessFragment();
}
return null;
}
#Override
public CharSequence getPageTitle(int position) {
return DemoCollectionPagerAdapter.CONTENT[position % CONTENT.length];
}
#Override
public int getIconResId(int index) {
return ICONS[index % ICONS.length];
}
#Override
public int getCount() {
return mCount;
}
public void setCount(int count) {
if (count > 0 && count <= 10) {
mCount = count;
notifyDataSetChanged();
}
}
}
}
Error Log:
java.lang.NullPointerException
at com.hello.ContactsListFragment.onPrepareOptionsMenu(ContactsListFragment.java:236)
at android.support.v4.app.Fragment.performPrepareOptionsMenu(Fragment.java:1882)
at android.support.v4.app.FragmentManagerImpl.dispatchPrepareOptionsMenu(FragmentManager.java:2020)
at android.support.v4.app.FragmentActivity.onPreparePanel(FragmentActivity.java:459)
at android.support.v7.app.ActionBarActivity.superOnPreparePanel(ActionBarActivity.java:280)
at android.support.v7.app.ActionBarActivityDelegate$1.onPreparePanel(ActionBarActivityDelegate.java:84)
at android.support.v7.app.ActionBarActivityDelegateBase.preparePanel(ActionBarActivityDelegateBase.java:1006)
at android.support.v7.app.ActionBarActivityDelegateBase.doInvalidatePanelMenu(ActionBarActivityDelegateBase.java:1182)
at android.support.v7.app.ActionBarActivityDelegateBase.access$100(ActionBarActivityDelegateBase.java:79)
at android.support.v7.app.ActionBarActivityDelegateBase$1.run(ActionBarActivityDelegateBase.java:115)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:155)
at android.app.ActivityThread.main(ActivityThread.java:5520)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1029)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:796)
at dalvik.system.NativeStart.main(Native Method)

Cant run another activity from a FragmentActivity.!

I have an activity with a ViewPager containing 3 fragments.
Each fragment is to hold a listview, and I wish to start a new activity when a list item is clicked.
I am unable to run the startActivity() method from the onItemClickListener. Help!
BTListDevice.java
package com.example.pager;
import java.util.Set;
import android.support.v4.app.Fragment;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class BTListDevice extends FragmentActivity {
// Fragments
AppSectionsPagerAdapter mAppSectionsPagerAdapter;
ViewPager mViewPager;
// Debugging
private static final String TAG = "BluetoothChat";
private static final boolean D = true;
// Message types sent from the BluetoothChatService Handler
public static final int MESSAGE_STATE_CHANGE = 1;
public static final int MESSAGE_READ = 2;
public static final int MESSAGE_WRITE = 3;
public static final int MESSAGE_DEVICE_NAME = 4;
public static final int MESSAGE_TOAST = 5;
// Key names received from the BluetoothChatService Handler
public static final String DEVICE_NAME = "device_name";
public static final String TOAST = "toast";
// Intent request codes
private static final int REQUEST_CONNECT_DEVICE_SECURE = 1;
private static final int REQUEST_CONNECT_DEVICE_INSECURE = 2;
// Return Intent extra
public static String DEVICE_DET = "dev";
private static final int REQUEST_ENABLE_BT = 7;
// Member fields
private static BluetoothAdapter mBtAdapter;
private static DevicesCursor devicesAdapter;
private static ChatDBHelper dbHelper;
private static ListView pairedListView;
private ListView newDevicesListView;
private static ListView homeList;
private static HomeListAdapter iAdap;
boolean buttonState;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Get Default Adapter for the device
mBtAdapter = BluetoothAdapter.getDefaultAdapter();
dbHelper = new ChatDBHelper(this);
if (mBtAdapter.isEnabled())
buttonState=true;
else
buttonState=false;
invalidateOptionsMenu();
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setContentView(R.layout.activity_navigator);
// Create the adapter that will return a fragment for each of the three primary sections
// of the app.
mAppSectionsPagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager, attaching the adapter and setting up a listener for when the
// user swipes between sections.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mAppSectionsPagerAdapter);
mViewPager.setCurrentItem(1);
// Set result CANCELED in case the user backs out
setResult(Activity.RESULT_CANCELED);
}
#Override
protected void onResume() {
super.onResume();
if (mBtAdapter.isEnabled())
buttonState=true;
else
buttonState=false;
invalidateOptionsMenu();
}
#Override
protected void onDestroy() {
super.onDestroy();
// Make sure we're not doing discovery anymore
if (mBtAdapter != null) {
mBtAdapter.cancelDiscovery();
}
// Unregister broadcast listeners
this.unregisterReceiver(mReceiver);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.home_screen_menu, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
switch(item.getItemId()) {
case R.id.menu_BT :
{
if (!mBtAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
//Toast.makeText(getApplicationContext(), "Enabling Bluetooth..", Toast.LENGTH_SHORT).show();
}
else {
if (mBtAdapter.isEnabled()) {
mBtAdapter.disable();
buttonState=false;
invalidateOptionsMenu();
//Toast.makeText(getApplicationContext(), "Disabling Bluetooth..", Toast.LENGTH_SHORT).show();
}
}
}
return true;
default :
return super.onOptionsItemSelected(item);
}
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
MenuItem BT = menu.findItem(R.id.menu_BT);
if(buttonState)
{
BT.setIcon(R.drawable.bt_on);
return true;
}
else
BT.setIcon(R.drawable.bt_off);
return super.onPrepareOptionsMenu(menu);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
switch(requestCode)
{
case REQUEST_ENABLE_BT : {
if(resultCode==RESULT_OK)
{
buttonState=true;
invalidateOptionsMenu();
// Get a set of currently paired devices
Set<BluetoothDevice> pairedDevices = mBtAdapter.getBondedDevices();
String text = String.valueOf(pairedDevices.size());
Toast.makeText(getApplicationContext(),text, Toast.LENGTH_SHORT).show();
if (pairedDevices.size() > 0)
{
dbHelper.DTdelAllData();
for (BluetoothDevice device : pairedDevices)
{
dbHelper.DTinsertData(device.getAddress(), device.getName());
}
}
}
else
{
buttonState=false;
invalidateOptionsMenu();
}
}
break;
}
}
public void searchForDevices(View v)
{
if (mBtAdapter == null) {
Toast.makeText(getApplicationContext(), "Device not supported!", Toast.LENGTH_LONG).show();
return;
}
else
{
if (!mBtAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
//Toast.makeText(getApplicationContext(), "Enabling Bluetooth..", Toast.LENGTH_LONG).show();
}
else
{
doDiscovery();
v.setVisibility(View.GONE);
}
}
}
private void doDiscovery() {
//if (D) Log.d(TAG, "doDiscovery()");
// Indicate scanning in the title
setProgressBarIndeterminateVisibility(true);
setTitle("Scanning");
// If we're already discovering, stop it
if (mBtAdapter.isDiscovering()) {
mBtAdapter.cancelDiscovery();
}
// Request discover from BluetoothAdapter
mBtAdapter.startDiscovery();
}
// The on-click listener for all devices in the ListViews
static OnItemClickListener mDeviceClickListener = new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> av, View v, int arg2, long arg3) {
// Cancel discovery because it's costly and we're about to connect
mBtAdapter.cancelDiscovery();
Cursor c = dbHelper.DTgetAllData();
c.moveToPosition(arg2);
String device = c.getString(0);
// Create the result Intent and include the MAC address
Intent intent = new Intent(BTListDevice.this,ChatActivity.class);
intent.putExtra(DEVICE_DET, device);
// Set result and finish this Activity
BTListDevice.this.startActivity(intent);
}
};
public class AppSectionsPagerAdapter extends FragmentPagerAdapter {
Fragment frag;
public AppSectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int i) {
switch (i) {
case 0 :
frag = new PairedDevicesFragment();
break;
case 2 :
frag = new NewDevicesFragment();
break;
case 1 :
frag = new HomeScreenFragment();
break;
default :
frag = new HomeScreenFragment();
}
return frag;
}
#Override
public int getCount() {
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
String title = null;
switch(position)
{
case 0 : title = "Paired Devices";
break;
case 1 : title = "Chats";
break;
case 2 : title = "New Devices";
break;
}
return (CharSequence)title;
}
}
public static class PairedDevicesFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.paired_devices, container, false);
// Find and set up the ListView for paired devices
pairedListView = (ListView) rootView.findViewById(R.id.paired_devices);
pairedListView.setOnItemClickListener(mDeviceClickListener);
new Handler().post(new Runnable() {
#Override
public void run() {
devicesAdapter = new DevicesCursor(getActivity().getApplicationContext(), dbHelper.DTgetAllData());
pairedListView.setAdapter(devicesAdapter);
}
});
return rootView;
}
}
public static class NewDevicesFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.new_devices, container, false);
// Find and set up the ListView for paired devices
pairedListView = (ListView) rootView.findViewById(R.id.new_devices);
pairedListView.setOnItemClickListener(BTListDevice.mDeviceClickListener);
return rootView;
}
}
public static class HomeScreenFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.home_screen, container, false);
homeList = (ListView)rootView.findViewById(android.R.id.list);
Cursor cur = dbHelper.CTgetChatDevices();
cur.moveToFirst();
if(cur.getCount()>0)
{
new Handler().post(new Runnable() {
#Override
public void run() {
iAdap = new HomeListAdapter(getActivity().getApplicationContext());
homeList.setAdapter(iAdap);
}
});
}
else
{
TextView empty = (TextView)rootView.findViewById(android.R.id.empty);
empty.setText("There is No Cheese!");
empty.setVisibility(View.VISIBLE);
homeList.setVisibility(View.GONE);
}
return rootView;
}
}
}
EDIT :
When i try to call startActivity(), I get this error in onItemClickListener.
Cannot make a static reference to the non-static method startActivity(Intent) from the type Activity.

Just Change the code for each fragment
public static class PairedDevicesFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.paired_devices, container, false);
// Find and set up the ListView for paired devices
pairedListView = (ListView) rootView.findViewById(R.id.paired_devices);
pairedListView.setOnItemClickListener(mDeviceClickListener);
new Handler().post(new Runnable() {
#Override
public void run() {
devicesAdapter = new DevicesCursor(getActivity().getApplicationContext(), dbHelper.DTgetAllData());
pairedListView.setAdapter(devicesAdapter);
}
});
pairedListView .setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
Cursor c = dbHelper.DTgetAllData();
c.moveToPosition(arg2);
String device = c.getString(0);
// Create the result Intent and include the MAC address
Intent intent = new Intent(getActivity(),ChatActivity.class);
intent.putExtra(DEVICE_DET, device);
// Set result and finish this Activity
getActivity().startActivity(intent);
}
});
return rootView;
}
}

Give this a try,
Instead of doing it this way, getActivity().startActivity(intent);
try this,
BTListDevice.this.startActivity(intent);

Change the onItemClick Code as following
static OnItemClickListener mDeviceClickListener = new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> av, View v, int arg2, long arg3) {
// Cancel discovery because it's costly and we're about to connect
mBtAdapter.cancelDiscovery();
Cursor c = dbHelper.DTgetAllData();
c.moveToPosition(arg2);
String device = c.getString(0);
// Create the result Intent and include the MAC address
Intent intent = new Intent(getActivity(),ChatActivity.class);
intent.putExtra(DEVICE_DET, device);
// Set result and finish this Activity
getActivity().startActivity(intent);
}
};

Try this fragment of code
// Create the result Intent and include the MAC address
Intent intent = new Intent(getActivity(), ChatActivity.class);
intent.putExtra(DEVICE_DET, device);
// Set result and finish this Activity
startActivity(intent);

Android notepadv2 tutorial...im getting errors

I am trying the tutorial notepadv2 for android. I did everything the tutorial said (and used only the code they gave me)and i am getting errors all over the place. Help!!!!
this is my NoteEdit.java file in /src
package com.android.demo.notepad2;
import android.app.Activity;
import android.os.Bundle;
private EditText mTitleText;
private EditText mBodyText;
private Long mRowId;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.note_edit);
mTitleText = (EditText) findViewById(R.id.title);
mBodyText = (EditText) findViewById(R.id.body);
Button confirmButton = (Button) findViewById(R.id.confirm);
mRowId = null;
Bundle extras = getIntent().getExtras();
if (extras != null) {
String title = extras.getString(NotesDbAdapter.KEY_TITLE);
String body = extras.getString(NotesDbAdapter.KEY_BODY);
mRowId = extras.getLong(NotesDbAdapter.KEY_ROWID);
if (title != null) {
mTitleText.setText(title);
}
if (body != null) {
mBodyText.setText(body);
}
}
confirmButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Bundle bundle = new Bundle();
bundle.putString(NotesDbAdapter.KEY_TITLE, mTitleText.getText().toString());
bundle.putString(NotesDbAdapter.KEY_BODY, mBodyText.getText().toString());
if (mRowId != null) {
bundle.putLong(NotesDbAdapter.KEY_ROWID, mRowId);
}
Intent mIntent = new Intent();
mIntent.putExtras(bundle);
setResult(RESULT_OK, mIntent);
finish();
}
});
}
this is my Notepadv2.java file in /src
package com.android.demo.notepad2;
import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
public class Notepadv2 extends ListActivity {
private static final int ACTIVITY_CREATE=0;
private static final int ACTIVITY_EDIT=1;
private static final int INSERT_ID = Menu.FIRST;
private static final int DELETE_ID = Menu.FIRST + 1;
private NotesDbAdapter mDbHelper;
private Cursor mNotesCursor;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.notes_list);
mDbHelper = new NotesDbAdapter(this);
mDbHelper.open();
fillData();
registerForContextMenu(getListView());
}
private void fillData() {
// Get all of the rows from the database and create the item list
mNotesCursor = mDbHelper.fetchAllNotes();
startManagingCursor(mNotesCursor);
// Create an array to specify the fields we want to display in the list (only TITLE)
String[] from = new String[]{NotesDbAdapter.KEY_TITLE};
// and an array of the fields we want to bind those fields to (in this case just text1)
int[] to = new int[]{R.id.text1};
// Now create a simple cursor adapter and set it to display
SimpleCursorAdapter notes =
new SimpleCursorAdapter(this, R.layout.notes_row, mNotesCursor, from, to);
setListAdapter(notes);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0, INSERT_ID,0, R.string.menu_insert);
return true;
}
#Override
public boolean onMenuItemSelected(int featureId, MenuItem item) {
switch(item.getItemId()) {
case INSERT_ID:
createNote();
return true;
}
return super.onMenuItemSelected(featureId, item);
}
#Override
public void onCreateContextMenu(Menu menu, View v,
ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
menu.add(0, DELETE_ID, 0, R.string.menu_delete);
}
#Override
public boolean onContextItemSelected(MenuItem item) {
switch(item.getItemId()) {
case DELETE_ID:
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
mDbHelper.deleteNote(info.id);
fillData();
return true;
}
return super.onContextItemSelected(item);
}
private void createNote() {
Intent i = new Intent(this, NoteEdit.class);
startActivityForResult(i, ACTIVITY_CREATE);
}
#Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
Cursor c = mNotesCursor;
c.moveToPosition(position);
Intent i = new Intent(this, NoteEdit.class);
i.putExtra(NotesDbAdapter.KEY_ROWID, id);
i.putExtra(NotesDbAdapter.KEY_TITLE, c.getString(
c.getColumnIndexOrThrow(NotesDbAdapter.KEY_TITLE)));
i.putExtra(NotesDbAdapter.KEY_BODY, c.getString(
c.getColumnIndexOrThrow(NotesDbAdapter.KEY_BODY)));
startActivityForResult(i, ACTIVITY_EDIT);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
super.onActivityResult(requestCode, resultCode, intent);
Bundle extras = intent.getExtras();
switch(requestCode) {
case ACTIVITY_CREATE:
String title = extras.getString(NotesDbAdapter.KEY_TITLE);
String body = extras.getString(NotesDbAdapter.KEY_BODY);
mDbHelper.createNote(title, body);
fillData();
break;
case ACTIVITY_EDIT:
Long mRowId = extras.getLong(NotesDbAdapter.KEY_ROWID);
if (mRowId != null) {
String editTitle = extras.getString(NotesDbAdapter.KEY_TITLE);
String editBody = extras.getString(NotesDbAdapter.KEY_BODY);
mDbHelper.updateNote(mRowId, editTitle, editBody);
}
fillData();
break;
}
}
}
These are the two files that the errors are coming from

NoteEdit will not compile because it has no class declaration...
package com.android.demo.notepad2;
import android.app.Activity;
import android.os.Bundle;
//missing this line:
//public class NoteEdit extends Activity {
private EditText mTitleText;
private EditText mBodyText;
private Long mRowId;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.note_edit);
Without a class declaration, the parser will spit up errors all over the place, as nothing will make sense anymore.
I am not sure if there are any errors in Notepadv2 just by looking at it.

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

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