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Marcio Porto
6,834 PointsAction Bar not showing
The action bar is not showing on my app when I run it. Maybe this has to do with the fact that I am using a more recent SDK and Android Studio. Anyway, does anyone know what I should do? Here is my code:
public class EditFriendsActivity extends ListActivity {
public static final String TAG = EditFriendsActivity.class.getSimpleName();
protected List<ParseUser> mUsers;
protected ParseRelation<ParseUser> mFriendsRelation;
protected ParseUser mCurrentUser;
@Override
protected void onCreate(Bundle savedInstanceState) {
// Set loading animation (progress bar)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_edit_friends);
getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
}
@Override
protected void onResume() {
super.onResume();
mCurrentUser = ParseUser.getCurrentUser();
mFriendsRelation = mCurrentUser.getRelation(ParseConstants.KEY_FRIENDS_RELATION);
// Show set progress bar
ParseQuery<ParseUser> query = ParseUser.getQuery();
query.orderByAscending(ParseConstants.KEY_USERNAME);
// Add search feature later. Look at the Parse documentation regarding this section
query.setLimit(1000);
query.findInBackground(new FindCallback<ParseUser>() {
@Override
public void done(List<ParseUser> users, ParseException e) {
// Hide the progress bar
if (e == null) {
// Success
mUsers = users;
String[] usernames = new String[mUsers.size()];
int i = 0;
for (ParseUser user : mUsers) {
usernames[i] = user.getUsername();
i++;
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
EditFriendsActivity.this,
android.R.layout.simple_list_item_checked,
usernames);
setListAdapter(adapter);
addFriendCheckmarks();
} else {
Log.e(TAG, e.getMessage());
AlertDialog.Builder builder = new AlertDialog.Builder(EditFriendsActivity.this);
builder.setMessage(e.getMessage())
.setTitle(R.string.error_title)
.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}
}
});
}
private void addFriendCheckmarks() {
mFriendsRelation.getQuery().findInBackground(new FindCallback<ParseUser>() {
@Override
public void done(List<ParseUser> friends, ParseException e) {
if (e == null) {
// list returned. Look for a match
for (int i = 0; i < mUsers.size(); i++) {
ParseUser user = mUsers.get(i);
for (ParseUser friend : friends) {
if (friend.getObjectId().equals(user.getObjectId())) {
getListView().setItemChecked(i, true);
}
}
}
} else {
Log.e(TAG, e.getMessage());
}
}
});
}
@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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
if (getListView().isItemChecked(position)) {
// add friend
mFriendsRelation.add(mUsers.get(position));
} else {
// remove friend
mFriendsRelation.remove(mUsers.get(position));
}
// Saves local changes made above on the back-end
mCurrentUser.saveInBackground(new SaveCallback() {
@Override
public void done(ParseException e) {
if (e != null) {
Log.e(TAG, e.getMessage());
}
}
});
}
}