Android :: Drag Items Around In A ListView To Change Their Order?
Sep 1, 2010
Let's say I have a ListView of items:
Cat
Dog
Mouse
And these are bound to the ListView via an adapter to a database.
What I want to be able to do is to be able to re-order the list view,. For example I want to somehow drag "Mouse" up to the top of the list above "Cat". Once I have an order set, I then want to "save" the list and its order back to the database.
Is there any way to do this? Has someone made such a custom ListView that I could use? The only alternative I can think of is to long press on a list view item and have a "Move up by one", "Move to top", etc. context menu that moves items around in the list.
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Jan 28, 2010
I have to drag and drop items of ListView, which typically have an image and text. How can I implement this.
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Sep 23, 2010
Im using a custom listView with a Title and a Subtitle where you can read a brief explanation of the item.
For each item on the list, im displaying an alertDialog to select an option (different for each case). When the option is selected, i want to change the Subtitle for the option selected by the user.
This is what i tried:
CODE:.....................
For the first item on the list it works fine, when i select an option, the subtitle get replaced by that option, but when i make a selection in the alertDialogs of the other 2 items, the option selected replaces the subtitle of the first item!
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Nov 20, 2010
I have a list View in my app (this is the xml layout):
CODE:.............
Each item of my list View is composed of two TextView:
CODE:.............
I would like to change background color (and text color) of each item of my ListView on focus (and, if possibile on selection). How can i do it?
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Nov 22, 2010
I have a list View in my app (this is the xml layout):
CODE:.............
Each item of my list View is composed of two TextView:
CODE:..............
I'm populating my listView from an ArrayAdapter, in this way:
CODE:..............
My goal is to be able to change the text color and the backgorund of these child views whenever the parent is selected or pressed.
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Oct 9, 2010
I am designing an application which requires Drag&Drop functionality to transfer items from one list to another.
Is there any way to drop item into another list, as i have seen applications to drag and drop items in the same list(Reordering the list)?
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Jun 14, 2010
Does anyone know how to drag and drop items on a web page to re arrange icons?Press my finger down on the item like you do to move our widgets and all I get is copy, magnify and paste commands.
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Jun 15, 2009
I want to know how to manual sort with ListView by using drag and drop? for example, the user can drag an item from position 2 to position 1. Someone said there is a play list activity that can support it in music application. But I cannot find it in my SDK 1.0. Who can provide some suggestion? If there is a demo, it is more better.
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May 28, 2010
I'm just getting my feet wet with Android and have built a UI that contains a TabHost with three tabs. Each tab is powered by its own Activity. The first Tab contains a listview with a prepopulated set of rows and is built from a custom ArrayAdapter.
The problem I'm running into is that none of the ListView rows are tappable. In other words, when I tap on them there is no orange selection. If I use the scroll ball on my Nexus One it will select, but any touch gestures don't seem to be responding. All the UI is being handled using XML files with a main.xml housing the TabHost -> LinearLayout -> TabWidget/FrameLayout and a nearby_activity.xml file containing my ListView UI
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"............
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Aug 27, 2009
I cannot get the data from SqLite using order by because the data is encrypted, so the sort wouldn't work there. Is it possible to sort the items in the ListView?
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May 15, 2009
I've noticed after I've switched to 1.5 that if ListView item is not enabled the divider(s) for this item are not rendering. Is this intentional?
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Jun 19, 2010
I want to achieve this kinda of row look in my app. I already have a ImageView/TextView layout, but I want that 'positive' little image in the right always being displayed at the exact same place!
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Aug 16, 2010
When this displays the first two rows of the listview appear under the tabs, the Mercury, and Venus planets. How do I get the tabs to occupy the top and the listview rows to start after the tabs?
tablistmenu.xml:
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="@+id/textview1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="" />
<TextView
android:id="@+id/textview2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="" />
<TextView
android:id="@+id/textview3"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="" />
<TextView
android:id="@+id/textview4"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="" />
</FrameLayout>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView
android:id="@+id/lstMain"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</ListView>
</LinearLayout>
</TabHost>
tablistmenu.java: public class tablistmenu extends TabActivity {
private ListView mainListView ;
private ArrayAdapter<String> listAdapter ;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.tablistmenu);
TabHost mTabHost = getTabHost();
mTabHost.addTab(mTabHost.newTabSpec("tab_test1").setIndicator("Contacts", getResources().getDrawable(R.drawable.contact_32)).setContent(R.id.textview1));
mTabHost.addTab(mTabHost.newTabSpec("tab_test2").setIndicator("Credit Cards", getResources().getDrawable(R.drawable.credit_card_32)).setContent(R.id.textview2));
mTabHost.addTab(mTabHost.newTabSpec("tab_test3").setIndicator("Notes/Misc", getResources().getDrawable(R.drawable.notes_32)).setContent(R.id.textview3));
mTabHost.addTab(mTabHost.newTabSpec("tab_test4").setIndicator("Websites", getResources().getDrawable(R.drawable.globe_32)).setContent(R.id.textview4));
mTabHost.setCurrentTab(0);
// Find the ListView resource.
mainListView = (ListView) findViewById( R.id.lstMain);
// Create and populate a List of planet names.
String[] planets = new String[] { "Mercury", "Venus", "Earth", "Mars", "Jupiter", "Saturn", "Uranus", "Neptune"};
ArrayList<String> planetList = new ArrayList<String>();
planetList.addAll( Arrays.asList(planets) );
// Create ArrayAdapter using the planet list. listAdapter = new ArrayAdapter<String>(this, R.layout.simplerow, planetList);
// Set the ArrayAdapter as the ListView's adapter. mainListView.setAdapter( listAdapter );
// End
} } }
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Aug 30, 2010
How to add items to a ListView in Android during runtime?
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Jul 20, 2010
I have a listview that's using a custom adapter. I want to dynamically show/remove items from the listview. I've tried everything inside the getView() method in my view adapter. I've tried doing setVisiblity(View.GONE) on the view I'm returning. And it infact doesn't draw the view, but it allocates space for the view and it's just a blank black space.
Is this even possible to set items in listview invisible?
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Nov 8, 2010
I seem to be having a problem with Android ListView. I'm trying to delete the selected item from ListView. The delete method is working and will allow me to delete as many items from my list as needed, but whenever I scroll to the bottom of the list (after atleast 1 item has been deleted) I get an Error that closes the Application.
Here is my code:
CODE:.............................
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Sep 1, 2009
I noticed that when item in in a list is clicked rapidly, there is chance that item in other row becomes dark. Especially when you click turn on/off bluetooth in system setting quickly. Has anyone noticed it and is there fix for this?
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Apr 4, 2012
I have some class LoginActivity.java. In the onCreate method I retrieve ListView:
ListView list = (ListView)findViewById(R.id.snListView); then:
list.setAdapter(adapter);
In addition there are login.xml layout - there are:
<ListView
android:id="@+id/snListView"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</ListView>
and sn_row.xml:
[Code]...
At the moment I have cell's height 100dp, I need that cell's height will depend on device, I mean I have here 5 cells showing at login screen in ListView and I need that these 5 rows will fit the ListView (cell's height = ListView's height/5).
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May 31, 2009
After the listview is already initialized, is it possible to add items to it during runtime?
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Apr 1, 2010
Can somebody please give me an example code of removing all ListView items and replacing with new items. I tried replacing the adapter items.Still no results.
My code is:
at first I am calling
populateList(){
results -populated arraylist with strings
ArrayAdapter<String> adapter = new ArrayAdapter<String>
(this, android.R.layout.simple_list_item_1, results);
listview.setAdapter(adapter);
adapter.notifyDataSetChanged();
listview.setOnItemClickListener(this);
}
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Feb 3, 2009
I want to set the onclicklistner on the each item to be displayed in ListVIew. The code I have written is:
package munish.android;
import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
public class List extends ListActivity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Use an existing ListAdapter that will map an array
// of strings to TextViews
setListAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, mStrings));
getListView().setTextFilterEnabled(true);
} private String[] mStrings = {
"ImageView", "Grid View", "List View", "Map View", "Image Switcher", "Queso Jalapeno", "Queso Majorero", };
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May 26, 2009
I'm trying to make a list that contains elements not necessarily occupying the entire width of the screen, but even if using android:layout_width="wrap_content" on my elements, they always behave as if their width value were set to "fill_parent" instead. If I set a fixed value for the width, e.g. "100px", that value is indeed used, but I just can't get wrap_content to work.
Example simple list item:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/ android"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:background="#707"> <TextView android:id="@+id/text1"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_alignParentTop="true" android:layout_alignParentRight="true"
android:background="#770" android:text="Text1" /> <TextView android:id="@+id/text2"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_alignParentLeft="true" android:layout_below="@id/ text1"
android:background="#077" android:text="Text2" /> </RelativeLayout>
What am I missing here? How do I accomplish a list item with wrap_content behaviour, i.e., where the width of each RelativeLayout is adapted to the length of the strings in the contained text views?
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Dec 11, 2009
My app starts with a blank listview with a Menu option to Add contacts to the ListView. Now, I want that my ListView gets saved every time I quit my App so that the next time I start my App, I see all the contacts from last time. I understand that Android lets you store and retrieve data. Just don't know how to move forward from here.
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May 6, 2010
Given a listview that shows checkboxes next to a list of people, I want to be able to get the names (in Strings for example) of the people who are checked. I have set my listview mode to allow for multiple checks.
getCheckedItemPositions()
Will get the positions but I can't figure out how to iterate over the listview to get the names. Also Eclipse tells me that getCheckItemIds is not a valid method for ListView.
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Jun 24, 2010
I'm building a list that is sorted alphabetically. The list should show a divider containing the Letter that the following icons belong to.
I'm using a Cursoradapter that contains the already sorted result from the database. I plan on adding the divider to the list item and set it to visible if the shown letter changes. How do I know that I have a new Letter? Is there a better way then going forward or backward in the cursor and check if the item I show is the end or beginning of a new group?
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Mar 4, 2010
How can i set the number of items to show in a list without to scroll?
Example: I have a list with 10 items.
I want that only 3 items appears and that I have to scroll to see the rest of the items.
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Nov 3, 2010
I've a ListView that can have 0 custom items inside (like "My Downloads").Is there anyway to show a default text "No download yet" ?
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Dec 16, 2009
The way I want it is, per row there will be a text and is followed by a right arrow button, so that the user can click on that button to edit the content of that row. If the user is using the keypad, by using the left and right buttons on the keypad, he should be able to select the textview or the Button in that particular row. I have seen this in a couple of apps. The way I see that working on those apps appear as if they are maintaining two lists in parallel.
The reason i felt it this way is, if I am on row 1 of the list and if I press the right key on the phone keypad, then the right arrow button will get highlighted and now if I use the down key or if I keep pressing the down key, then the focus will scroll through that arrow button only as if that is an another parallel list constructed. I don't know if that is a good way to do it. I tried many for getting this to work, but couldn't succeed.
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Sep 2, 2010
I have a listview from an SQLDatabase using custom CursorAdaptor. I would like to go back to the activity that I used to create the items when I click on them in the listview. So that I can edit the entries. But nothing happen when I implement the OnItemClick method and the getItemId() on the CursorAdapter even though am not sure I am correct there. Here is my Code:
public void onItemClick(AdapterView<?> adapview, View view, int position, long rowId) {
Cursor c = adapter.retrieveRow(rowId); // retrieve row from Database
Intent edit = new Intent(this,NewItem.class);
edit.putExtra(DBAdapter.KEY_ID, rowId);
edit.putExtra(DBAdapter.Title, c.getString(c.getColumnIndex(DBAdapter.Title)));
edit.putExtra(DBAdapter.DATE, c.getString(c.getColumnIndex(DBAdapter.DATE)));
startActivity(edit); } public long getItemId(int id){ return id; }
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Oct 16, 2010
I've got the following main.xml:
<?xml version="1.0" encoding="utf-8"?> <AbsoluteLayout
android:id="@+id/widget0" android:layout_width="fill_parent"
android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" >
<ListView android:id="@+id/listview" android:layout_width="315px"
android:layout_height="379px" android:layout_x="2px" android:layout_y="50px" >
</ListView> <TextView android:id="@+id/title" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="Select device:" android:textSize="17sp"
android:layout_x="-2px" android:layout_y="1px" >
</TextView> <Button android:id="@+id/refresh" android:layout_width="109px"
android:layout_height="wrap_content" android:text="Refresh" android:layout_x="209px android:layout_y="7px" >
</Button> </AbsoluteLayout>
The main class does nothing but drawing the layout. I've got the following class and layout for the listitems:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:padding="10dp" android:textSize="16sp" >
</TextView> package com.android.bluetoothp2p;
import android.app.ListActivity; import android.os.Bundle;
import android.view.View; import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter;
import android.widget.ListView; import android.widget.TextView;
import android.widget.Toast;
public class BTListView extends ListActivity {
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, COUNTRIES)); ListView lv = getListView();
lv.setTextFilterEnabled(true); lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// When clicked, show a toast with the TextView text
Toast.makeText(getApplicationContext(), ((TextView) view).getText(),
Toast.LENGTH_SHORT).show(); } } ); }
Countries is just an array with a list of countries, some dummy values. Now, how do I make the list items of the BTListView class go in the ListView (with @+id/listview) of the main class? Now my list works, but it isn't clickable anymore. This is the code:
ListView lv = getListView(); lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// When clicked, show a toast with the TextView text
Toast.makeText(getApplicationContext(), "lolwat", Toast.LENGTH_SHORT).show();
} } );
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