Android :: Set Selected State Of An Item In A Gallery (correct Way)?
Jul 24, 2010
I have a gallery that displays TextViews where the background of each view is the following code...
This selector work just fine for the state_pressed and default (idle) states, but the selected item state is never displayed. I REALLY do not want to force the background of the selected item by changing the background of the view when the onItemSelected event is called. What is the correct state or correct way to get the TextView background to be set properly. Is the selected (center) view in the gallery not really selected? Is there some other state I should put in the selector drawable xml?
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Aug 12, 2010
The default gallery widget only provides events for when items are clicked, but is there any way to tell what item is selected when only dragging the gallery around?
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Apr 17, 2010
I am to display the list and store the selected items in an array. But I am not able to get the correct items that were selected. Here whenever the user clicks an item, the array is getting updated, irrespective if the user is clicking the item to select it or deselect it. Could some one please help me solve this. I could actually perform an iteration to remove the odd numbered items in the array but I feel that would become an overload on the phone. Is there something for efficient. Please advise.
public class MainActivity extends ListActivity { TextView selection; String[] items={"sodium", "O2", "C02", "HCL", "NaCl", "H2So4", "O3", "Ag"}; String names[] = new String[10]; static int i=0; int posarray[] = new int[10]; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_multiple_choice, items)); .........
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Apr 9, 2010
If I was using an ImageButton with a selector for its background, is there a state I can change which will make it change its appearance? Right now I can get it to change images when pressed, but there seems to be no "highlighted" or "selected" or similar state which lets me toggle it's appearance at will.
Here's my XML, it only changes appearance when pressed.
CODE:........................
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Oct 14, 2009
I can see that we can get a phonestate via the PhoneStateListener, but there is no way of telling the state of the call. OFFHOOK is a number of states combined into one. Is there a particular reason for this? Are we not allowed to see the correct state of a call?
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Jul 1, 2010
I have an Activity, which contains a bunch of check boxes and a submit button.
When the submit button is clicked, the activity will exit (finish() will be called). Before the activity exits, I want to save the states of the check boxes in the activity, so when the activity starts again, the check boxes can stay in their previous states. What's the correct way to save these states? Should I use SharedPreference.
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Feb 10, 2010
I have an image button as defined below.
CODE:...................
I want to set the default state of the button to be selected. So in code I would say:
CODE:.....
Is it possible to do this in xml?
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Jan 20, 2009
I have list of items displayed in List Activity.
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Feb 1, 2010
I'm trying to find out how I can create a pop-up menu bar, after I press on a checkbox item, so I can do multiple things like delete.If anyone know about any tutorial, or article it will be fully estimated!
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Jun 3, 2010
I thought I could use the position int, but when I click on the item in the list view, nothing happens. Please help. Code...
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Jun 8, 2010
I'm using a custom view to display items in a listview. For some reason every time the list is populated; the first item is shown as selected (ie; orange highlight). I've tried everything I can think about to solve it; any ideas?
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Jun 24, 2010
I have a listview which has a bunch of selections. I want to keep the focus on the listview in touchmode and get the item selected. What is the best way to do that?
I found this blog:
http://bestsiteinthemultiverse.com/2009/12/android-selected-state-listview-example/ and
http://developer.android.com/resources/articles/touch-mode.html
What does the community suggest?
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Sep 11, 2010
I need to get the selected Item from a ListView in adnroid .
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Sep 14, 2010
Please Help me for getting the selected Item from a ListView. Items for the ListView are getting from a xml file. Elements of the ListView are filled up by the adapter(adpter contains ImageView and textView). I only need the TextView content from the ListView.By using the onItemClick i get only the index of the item.
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Mar 11, 2010
I am a newbie coder and new to the SDK. I was just playing around with an app that i made. I wanted to know as to how to retrieve the item id of the selected item from the spinner when the spinner is re- populated.
For example, I created 2 spinners, if you selected item 0 from spinner1 then spinner2 will have a bunch of items and if you selected item 1 from spinner1 then spinner2 will have a different set of items. Now, my question is that when i select item 1 from spinner 1 then the items in spinner2 dont have different ids. So how do i differentiate from the two sets of data?
To illustrate,
User selected item 0 in spinner1 -> spinner2 gets data from array1 -> item 0 in spinner2 has id '0' and item text is "apple"
User selected item 1 in spinner1 -> spinner2 gets data from array2 -> item 0 in spinner2 has id '0' and item text is "oranges"
I know this sounds confusing but i hope the right people understood it..
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Dec 22, 2009
I just read from internet to maintain the state of my application by overriding the onKeyDown function as given below. And set the launch mode of my activity as singleInstance. And it is working perfectly. Just want to know if it is correct approach. And how it is different from onSaveInstanceState.
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Mar 1, 2010
In my android app, I have a preferenceScreen with some checkboxes defined in a xml file and a class that implements "SharedPreferences.OnSharedPreferenceChangeListener". What I want to do is to select a checkbox and all the others to be selected as well. In the above listener I am able to modify the other checkboxes's state to selected, but my view remains unchanged. What should/could I do to achieve this ?
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Feb 3, 2009
Is there a way to show that a WebView item contained as a item in a ListView is selected? Right now the WebView does not seem to display its contents transparently like every other control so it takes up the entire view and does not show its state as selected.
Also, when the content of the WebView is selected, scrolling down with the track back does not seem to cause the WebView to loose focus. If I continue to scroll down with the track ball, all of a sudden an item in the middle of the ListView gets selected.
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Aug 17, 2010
I have a ListView with an edit text and a button below it. When I click on a listView item the keyboard appears and push up the edit text and the button. I want the list to scroll to the selected item.
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Aug 28, 2009
How i get the Selected item from the list Adapter.In this above code if i selected March from the Dropdown Adapter means then how can i retrieve the Manth March to show in a textview.
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Sep 28, 2010
When I change the background color of a list item it no longer flashes green when selected. Is there a way to retain this default behavior when the background is changed?
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Mar 13, 2010
I am creating a context menu in separate class from the listview, because the contextmenu will be access by several listviews in different classes. Whenever I long-click the listview, contextmenu pops up, but nothing happens when the options were chosen. Tried to look at logcat message and it said something like this:
Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@43c488f8
Any idea what really causing this problem? cause it works perfectly fine if i put the contextmenu on the same class as listview.
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Aug 2, 2010
How to get a selected item from a spinner in android?
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Mar 30, 2010
I always get an ClassCastException error... i do not what else to do...
- I'm using a data biding concept to populated the listview from a sqlite3 database.
- I just want to get the selected item text after a long press click.
This is the code of the activity:
CODE:........
This is the xml where a define the rows to show on the listview:
CODE:.................
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Oct 8, 2010
An activity has a Button and a ListView. Initially, only the Button is visible. When the button is pressed, the ListView is displayed. When displayed, is it possible for me to show one particular item as selected/focussed?
A use case could be that suppose it is a list of language settings and when the list opens, the currently selected language must be shown as highlighted. If I know the index of the item, how to set it as focused on display?
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Oct 29, 2010
I am an Android newbie trying to learn the UI side of things and it's doing my head in. Here's what I have right now:
CODE:.....
What I am struggling to figure out is how do I style the selected item? At the moment the selected item has a ghastly orange background which, under the rounded green rectangle, gives an orange outline effect.
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Jun 18, 2010
I created two Spinners to display the data in my application. In my first Spinner, the first item of the list is always displayed directly, but in the second Spinner nothing is displayed, even if I click on an item on the drop down view. Can anybody explain this behaviour?
Here is the code...
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Apr 18, 2010
I have an activity with a ListView check list and a spinner that controls the sort order of the items in that check list. One of the sort options is to move the checked items to the beginning of the list. I would like to allow users to check some items in the list, select the 'sort by checks' option, check some more items in the list, and select the 'sort by checks' option again. However, I don't see how to detect that second selection of the spinner's 'sort by checks' option.
I've tried using setOnItemSelectedListener, but it doesn't call the onItemSelected handler unless a different item is selected. And I've tried using setOnItemClickListener, but it seems that listener cannot be used with a spinner according to following run-time exception from logcat:
- - - D/AndroidRuntime( 987): Shutting down VM W/dalvikvm( 987): threadid=3: thread exiting with uncaught exception (group=0x4000fe70) E/AndroidRuntime( 987): Uncaught handler: thread main exiting due to uncaught exception E/AndroidRuntime( 987): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.test.spinner/com.test.spinner.check_list}: java.lang.RuntimeException: setOnItemClickListener cannot be used with a spinner. E/AndroidRuntime( 987): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java: 2268) - - -
Any tips on how to detect the selection of an already selected item in a spinner?
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Aug 26, 2009
How can you set the event listerner for a Spinner when the selected item changes>
basically what I am trying to do is something similar to this:
spinner1.onSelectionChange = handleSelectionChange;
void handleSelectionChange(Object sender){
//handle event}
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Oct 27, 2010
I have a custom listview row that contains a number of textView components. Instead of the "standard" single text item, I have created a item where each listview row contains several bits of information. For this example, I have a record id, a name, and a description for each row in the listview. I have my listview populated via
this.mDbHelper = new RecordDBAdapter(this); this.mDbHelper.open();
Cursor c = this.mDbHelper.fetchAllRecords(); startManagingCursor(c);
String[] from = new String[] {RecordDBAdapter.ROW_ID, RecordDBAdapter.NAME,
RecordDBAdapter.DESCRIPTION};
int[] to = new int[] {R.id.recordId, R.id.lblName, R.id.lblDescription};
// Now create an array adapter and set it to display using our row
SimpleCursorAdapter records = new SimpleCursorAdapter(this, R.layout.record_row, c, from, to); this.list.setAdapter(dives);
Now what I want is to be able to access the recordId value within each clicked item. I've tried to follow the Android tutorials to no avail. They do something like
Object o = adapter.getItemAtPosition(position);
but that still doesn't help either. What I really want is to get the value of the recordId within each selected listItem. Does anyone know how this would be accomplished? Here is my onItemClick event:
protected OnItemClickListener onListItemClick = new OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> adapter, View view, int position, long rowId) {
// My goal is either to grab the value of the
// recordId value from the textView, or from the adapter.
//Object o = adapter.getItemAtPosition(position);
//Tried this, no joy
Intent intent = new Intent(NeatActivity.this, SomeOtherActivity.class);
// intent.putExtra("selectedRecordId",val); //val here is a numerical record row id being passed to another activity.
startActivity(intent); } };
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