I'm relatively new to the Android development and encountered the following problem: I have a ListView with a corresponding ArrayAdapter which delivers simple item views. The item views are structured in a simple RelatveLayout manner revealing some behavior if clicked or long-pressed using the callback methods of OnItemClickListener and OnItemLongClickListener. This works fine so far. However, if I add an ImageButton to the item view with a corresponding onClick-callback, the original listener-methods on the item view itself don't work any more. The items in the ListView can't be selected any more as well. Why?
public class ProfileActivity extends Activity implements ActionBar.TabListener {
private static final String DEBUG_TAG = ProfileActivity.class
.getSimpleName();
private XMLBinder profilesDao;
private Config config;
/**
* The {@link android.support.v4.view.PagerAdapter} that will provide
* fragments for each of the sections. We use a {@link 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.v13.app.FragmentStatePagerAdapter}.
*/
SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {@link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile);
getActionBar().setSubtitle("Game Profiles");
// load profiles:
profilesDao = new XMLBinder(this);
try {
config = profilesDao.deserialize(Config.class,
R.raw.default_profiles);
} catch (Exception e) {
if (BuildConfig.DEBUG) {
Log.e(DEBUG_TAG, e.toString());
}
}
// Set up the action bar.
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(getFragmentManager(),
config.getCategories());
// 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 callback (listener) for when
// this tab is selected.
actionBar.addTab(actionBar.newTab()
.setText(mSectionsPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
// SharedPreferences pref = getSharedPreferences("AGT",
// Context.MODE_PRIVATE);
// SharedPreferences.Editor prefEditor = pref.edit();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.profile, 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
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());
}
@Override
public void onTabUnselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
@Override
public void onTabReselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
/**
* A {@link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
private List<Category> categories;
/** */
public SectionsPagerAdapter(final FragmentManager fm,
final List<Category> categories) {
super(fm);
this.categories = categories;
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class
// below).
final List<Profile> profiles = config.getCategories().get(position)
.getProfiles();
return PlaceholderFragment.newInstance(position + 1, profiles,
ProfileActivity.this);
}
@Override
public int getCount() {
// Show x total pages.
return this.categories.size();
}
@Override
public CharSequence getPageTitle(int position) {
return categories.get(position).getName();
}
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment implements
OnItemClickListener {
private List<Profile> list;
private ProfilesAdapter profilesAdapter;
private Context context;
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section number.
*
* @param list
*/
public static PlaceholderFragment newInstance(int sectionNumber,
List<Profile> list, Context context) {
final PlaceholderFragment fragment = new PlaceholderFragment(list,
context);
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
super();
}
/** */
public PlaceholderFragment(List<Profile> list, Context context) {
this();
this.list = list;
this.context = context;
this.profilesAdapter = new ProfilesAdapter(this.context,
R.layout.view_profile, this.list);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View rootView = inflater.inflate(R.layout.fragment_profile,
container, false);
// Configure the ListView with Adapter
final ListView profilesView = (ListView) rootView
.findViewById(R.id.profilesView);
profilesView.setAdapter(profilesAdapter);
// @TODO:
// profilesView.setDivider();
// profilesView.setEmptyView(emptyView);
profilesView.setOnItemClickListener(this);
profilesAdapter.notifyDataSetChanged();
return rootView;
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
if (view != null) {
final GameProfile selectedProfile = (GameProfile) parent
.getItemAtPosition(position);
final Intent intent = new Intent(this.context,
ChessClockActivity.class);
intent.putExtra(GameProfile.INTENT_EXTRA_SELECTED_PROFILE,
selectedProfile);
startActivity(intent);
}
}
}
/**
* @author Andy
*
*/
public static class ProfilesAdapter extends ArrayAdapter<Profile> {
private Context context;
private List<Profile> profiles;
/** */
public ProfilesAdapter(Context context, int resource,
List<Profile> profiles) {
super(context, resource, profiles);
this.context = context;
this.profiles = profiles;
}
@Override
public View getView(final int position, final View convertView,
final ViewGroup parent) {
View profileView = convertView;
if (null == profileView) {
final LayoutInflater inflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
profileView = inflater.inflate(R.layout.view_profile, null);
}
final TextView name = (TextView) profileView
.findViewById(R.id.profile_name);
name.setText(profiles.get(position).getTitle());
final TextView hint = (TextView) profileView
.findViewById(R.id.profile_desc);
hint.setText(profiles.get(position).getHint());
hint.setMaxLines(1);
hint.setEllipsize(TruncateAt.END);
return profileView;
}
}
}
