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- Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment
- com.descartes.application.MainActivity$DummySectionFragment:
- make sure class name exists, is public, and has an empty constructor that is public
- Caused by: java.lang.InstantiationException:
- can't instantiate class com.descartes.application.MainActivity$DummySectionFragment;
- no empty constructor
- public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
- /**
- * The {@link android.support.v4.view.PagerAdapter} that will provide fragments for each of the
- * sections. We use a {@link android.support.v4.app.FragmentPagerAdapter} derivative, which will
- * keep every loaded fragment in memory. If this becomes too memory intensive, it may be best
- * to switch to a {@link android.support.v4.app.FragmentStatePagerAdapter}.
- */
- SectionsPagerAdapter mSectionsPagerAdapter;
- /**
- * The {@link ViewPager} that will host the section contents.
- */
- ViewPager mViewPager;
- private static int SCAN = 1;
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- Loc lc = new LocImpl(this);
- Localisation loc = lc.localiser();
- System.out.println(loc.toString());
- // Create the adapter that will return a fragment for each of the three primary sections
- // of the app.
- mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
- // Set up the action bar.
- final ActionBar actionBar = getActionBar();
- actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
- // Set up the ViewPager with the sections adapter.
- mViewPager = (ViewPager) findViewById(R.id.pager);
- mViewPager.setAdapter(mSectionsPagerAdapter);
- // When swiping between different sections, select the corresponding tab.
- // We can also use ActionBar.Tab#select() to do this if we have a reference to the
- // Tab.
- mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
- @Override
- public void onPageSelected(int position) {
- actionBar.setSelectedNavigationItem(position);
- }
- });
- // For each of the sections in the app, add a tab to the action bar.
- for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
- // Create a tab with text corresponding to the page title defined by the adapter.
- // Also specify this Activity object, which implements the TabListener interface, as the
- // listener for when this tab is selected.
- actionBar.addTab(
- actionBar.newTab()
- .setText(mSectionsPagerAdapter.getPageTitle(i))
- .setTabListener(this));
- }
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- getMenuInflater().inflate(R.menu.activity_main, menu);
- return true;
- }
- // Ecouteurs qui correspondent à chaque bouton présent dans la page
- public boolean onOptionsItemSelected(MenuItem item) {
- switch (item.getItemId()) {
- case R.id.menu_camera:
- // app icon in action bar clicked; go home
- Intent intent = new Intent(this, ScanBarActivity.class);
- intent.putExtra("METHODE", "SCAN");
- startActivityForResult(intent, SCAN);
- return true;
- default:
- return super.onOptionsItemSelected(item);
- }
- }
- public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
- }
- public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
- // When the given tab is selected, switch to the corresponding page in the ViewPager.
- mViewPager.setCurrentItem(tab.getPosition());
- }
- public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
- }
- /**
- * A {@link FragmentPagerAdapter} that returns a fragment corresponding to one of the primary
- * sections of the app.
- */
- public class SectionsPagerAdapter extends FragmentPagerAdapter {
- public SectionsPagerAdapter(FragmentManager fm) {
- super(fm);
- }
- @Override
- public Fragment getItem(int i) {
- Fragment fragment = new DummySectionFragment();
- Bundle args = new Bundle();
- args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, i + 1);
- fragment.setArguments(args);
- return fragment;
- }
- @Override
- public int getCount() {
- return 4;
- }
- @Override
- public CharSequence getPageTitle(int position) {
- switch (position) {
- case 0: return getString(R.string.title_section1).toUpperCase();
- case 1: return getString(R.string.title_section2).toUpperCase();
- case 2: return getString(R.string.title_section3).toUpperCase();
- case 3: return getString(R.string.title_section4).toUpperCase();
- }
- return null;
- }
- }
- /**
- * A dummy fragment representing a section of the app, but that simply displays dummy text.
- */
- public class DummySectionFragment extends Fragment {
- public DummySectionFragment() {
- }
- public static final String ARG_SECTION_NUMBER = "section_number";
- @Override
- public View onCreateView(LayoutInflater inflater, ViewGroup container,
- Bundle savedInstanceState) {
- Bundle args = getArguments();
- switch (args.getInt(ARG_SECTION_NUMBER)){
- case 1:
- return inflater.inflate(R.layout.page_accueil, container, false);
- case 2:
- break;
- case 3:
- break;
- case 4:
- break;
- }
- TextView textView = new TextView(getActivity());
- textView.setGravity(Gravity.CENTER);
- textView.setText(Integer.toString(args.getInt(ARG_SECTION_NUMBER)));
- return textView;
- }
- }
- }
- public class DummySectionFragment extends Fragment
- public static class DummySectionFragment extends Fragment
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