android-arrayadapter

问题 I have a ListView, which displays a list of notes taken from a table in SQLiteDatabase with ArrayAdapter. public class NotepadActivity extends ListActivity { protected static final int ADD_NEW_NOTE = 0; protected static final int EDIT_NOTE = 1; ArrayAdapter<Note> adapter; NotesManager manager; private Note nNoteToDelete; ArrayList<Note> lstAllNotes; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); findViewById(R.id

问题 Reading this question, I tried the example given in the answer and it's working fine. Now I want to do the same but with a custom adapter using a Student class. So I have: public class AsyncDemo extends ListActivity { private static final String[] items={"lorem", "ipsum", "dolor", "sit", "amet", "consectetuer", "adipiscing", "elit", "morbi", "vel", "ligula", "vitae", "arcu", "aliquet", "mollis", "etiam", "vel", "erat", "placerat", "ante", "porttitor", "sodales", "pellentesque", "augue",

问题 Reading this question, I tried the example given in the answer and it's working fine. Now I want to do the same but with a custom adapter using a Student class. So I have: public class AsyncDemo extends ListActivity { private static final String[] items={"lorem", "ipsum", "dolor", "sit", "amet", "consectetuer", "adipiscing", "elit", "morbi", "vel", "ligula", "vitae", "arcu", "aliquet", "mollis", "etiam", "vel", "erat", "placerat", "ante", "porttitor", "sodales", "pellentesque", "augue",

问题 Am trying to store value of a arraylist in onSavedInstanceState() and get the values in a array list in onCreate method but it raises an eeror like unable to pause activity here is my code public void onSaveInstanceState(Bundle savedInstanceState) { savedInstanceState.putParcelable("Old", (Parcelable) profileDetails ); super.onSaveInstanceState(savedInstanceState); } and in my onCreate() if (savedInstanceState != null) { profileDetails= (ArrayList<ProfileDetails>)savedInstanceState

问题 AutoCompleteTextView displays it's suggestions in a dropdown in the portrait mode.I would like to display suggestions either in a dialog or in a dropdown in the landscape mode,here the EditText and the keyboard go full screen. Which layout should I use in the Adapter to display hints as a dialog in landscape mode. Im currently using android.R.layout.simple_dropdown_item_1line . 回答1: In the layout where you defined your AutoCompleteTextView use android:imeOptions=flagNoExtractUi The flag

问题 I got the following warning: Custom view com/example/view/adapter/SomeAdapter is missing constructor used by tools: (Context) or (Context,AttributeSet) or (Context,AttributeSet,int) in my class SomeAdapter which extends some BaseAdapter which extends ArrayAdapter public class SomeAdapter extends BaseAdapter{} public abstract class BaseAdapter extends ArrayAdapter<SomeModel>{} The warning exists in the concrete adapter but not in the abstract BaseAdapter. Has anyone ever heard of this warning

问题 i have this problem, i have private ArrayList<CustomItem> items; private ArrayAdapter<CustomItem> arrayAdapter; i show the data present in items, this data i see in listview, now i want to update data and see this new data if (!items.isEmpty()) { items.clear(); // i clear all data arrayAdapter.notifyDataSetChanged(); // first change items = getNewData();// insert new data and work well arrayAdapter.notifyDataSetChanged(); // second change } in the first change i see the data are cleaned, but

问题 I am working on ArrayAdapter and ListView. I have an Activity A and Activity B . Activity A starts an Activity B ( startActivityForResult() ) and when Activity B is finished, it returns the result back to Activity A . Activity A : @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.home); listViewPrayerList = (ListView) findViewById(R.id.listView_prayerlist); prayerList = new ArrayList<PrayerSetting>(); if (getIntent()

问题 I am working on ArrayAdapter and ListView. I have an Activity A and Activity B . Activity A starts an Activity B ( startActivityForResult() ) and when Activity B is finished, it returns the result back to Activity A . Activity A : @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.home); listViewPrayerList = (ListView) findViewById(R.id.listView_prayerlist); prayerList = new ArrayList<PrayerSetting>(); if (getIntent()

问题 If i type "Hello" in my edittext in activity 1 it will add "Hello" to the listview in activity 2 as the first entry ( which has no error ). Also, if I type "Apple" as my second entry I will change the first entry of "Hello" to "Apple" and add the new 2nd entry "Apple"... causing both entries to become "Apple" and "Apple"... any thoughts? Act2 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_argue_list);