Android :: Preloading List Activity ?
Nov 20, 2010
I have a realtively complicated listview in my application, with data fetched from the internet and so on. What is the best practice to do to preload as much as possible of the ListView, such that it appears immediately on the screen?
For example, the standard SMS/MMS app of android shows a white screen with a spinning loader and "Loading..." before a conversation is shown. I can't really find this in the Android source code, but I guess this is an extra loading Activity doing some caching and handing over to the conversation Activity using finish(), so that no screen change animation is shown.
How can I preload or cache ListView items? Is it even possible to do that?
View 1 Replies
Nov 4, 2010
I am on my first Android application and I am on a timeline so details and examples will be useful since my knowledge is still minimal. I want my first screen to present the user with a list of activities to choose from. In my situation it is a recipe app where the user first chooses the type of food, such as, Beef, Chicken, or Pork. I want the application to launch an activity depending on the list item that the user clicked on. I am not sure if I should use a list view, a text view, a scroll view, a list activity, an activity group...
View 1 Replies
View Related
Mar 5, 2013
I'm trying to repack firmware for MK808 and add the XBMC XAF version apk there. I want the XBMC to be preloaded by default after user flashes the firmware into MK808.
View 1 Replies
View Related
Jan 21, 2010
When views with different type have same id and screen orientation changes,
either java.lang.ClassCastException: android.view.AbsSavedState$1 or java.lang.IllegalArgumentException: Wrong state class -- expecting View State will occur. (depends on the view's order)
Because View.dispatchRestoreInstanceState() checks id only.
You may wonder why anyone would make views with different type to have same id.
But it can happen when you use tab activity.
Imagine you have tab activity with two children activity.
Tab1 is ListActivity and Tab2 is ExpandableListActivity.
Both activity have id of "@android:id/list" but the type of view is different.
This means we cannot use ListActivity & ExpandableListActivit at the same in one tab activity.
View 4 Replies
View Related
Oct 4, 2010
I currently have a tab layout with 2 tabs, one tab with a list view and one with the option make strings so I can add them in the list view. Both tabs have their own activity because this made the code much more structured, and I dont have to repeat my self later.
Lets say im in the tab that offer me to create an string, and i press the update list button, how do I update the list view without startActivity()? If i use startActivity(), it starts List.java, and instead of displaying the list in the list view tab, it takes full screen, which defies the purpose of the tab view. In other words, the startActivity() steals the focus from the tab view of the list, and sends it fulscreen.
I want to update the activity in my list view tab, without starting a new activity that goes to fullscreen, and doesnt update the one in the tab.
View 2 Replies
View Related
Mar 25, 2010
I have a simple question. I am trying to design a simple Android app, which based on keywords searches something and shows a listing view of results. Currently it merely searches SMSes in the cellphone.Here are some of the things I am faced with: I have a simple first page with a textbox and a submit button. It's rendered by "Activity" inherited class call SMS Finder.once I have the results present with me, I want them to be binded to a list view. Showing preview text to limited characters, say 20 chars. Clicking on the same should "ideally" open the inbox (or outbox or whatever) and open the SMS, however that meant I cannot come back to my app easily. So I would rather open the whole SMS in my own app. So clicking on the app should open the SMS in a new screen with complete message, sender info etc. Few questions here, For generic Android phone apps, what are the best practices to make UI as compliant to as many phones? Like what kind of views should I use?
View 1 Replies
View Related
Oct 4, 2010
Map activity allows one map in a activity, i have a scenario and hard time implementing it, i have a list of records and for each record i show google map now this is not becoming possible in lmap activity with list having earch row a seperate map?
View 1 Replies
View Related
Sep 2, 2010
I have a list activity in my application. i have tried to make it so that when a list item is selected to show the selection the background of the view should change. but now when i select one item, the item does get selected but the back ground of random listitems changes at the same time, but the selection is still correct
CODE:...........................
View 1 Replies
View Related
Jul 15, 2010
When I run my app, it works fine but if I switch back to home or another application, I want to go back to my app quickly by using the recent activity list (on my phone this is done by holding down the home button). For whatever reason, I never see my application in this list of apps. All other apps when they are running or have just recently been closed show up ( the menu shows 6 icons for the recent apps). Why doesn't my app show up on this list? Is this something you need to do programmatically?
View 4 Replies
View Related
Jan 21, 2009
I want to include one button inside each row in a List Activity. When pressing one of these buttons it will be disabled and will perform a heavy task in the background (in a different thread to avoid screen blocking). After the action is completed the button will be enabled again and the row updated with some results obtained from that "heavy operation". Im filling my List with a custom SimpleCursorAdapter, its getView method calls super.getView and in the view (row) returned I access its button through findViewById and set my click listener (to disable it, and launch the heavy task in the background). Once this heavy task is finished I need a reference to this row view to find the button and re- enable it. SimpleCursorAdapterīs super.getView() reuses row views shown on screen to avoid creating many different rows instances, so when my "heavy task" is finished the row view reference i need to reenable its button may have been reused in a different row, so in the end I am modifying a button in a different row! I have tried different solutions, for example giving different ID to each row view (useless because it gets overwritten when the row view is reused) Obviously creating a different row instance for each row whether its shown on screen or not isnt the best solution.
View 3 Replies
View Related
May 21, 2010
I have created ListActivity of images i want touch event just like onItemClickListner how can i do it? i'm not finding any on Item Toch Listener.
View 2 Replies
View Related
Feb 5, 2010
I have a ListActivity with an array adapter declared like arrayAdapter = new ArrayAdapter<String> (this, android.R.layout.simple_list_item_checked); This shows a bunch of rows with checkmarks on the far right. Can you tell me how to get a reference to those checkmarks or how to check/uncheck them?
View 2 Replies
View Related
Nov 10, 2010
I have an ArrayList of type GeoPoint.
private List<GeoPoint> points = new ArrayList<GeoPoint>();
I want to pass points to another Activity and retrieve the data in that activity. How do I do it? I know I have to use the parcelable but I searched, but could not find a way to pass ArrayLists.
View 1 Replies
View Related
Jul 24, 2009
For now i have a list, using extends listactivity, and now i want to add mapview on the same activity using framelayout probably,
but if i want to use the mapview, the activity must extends mapactivity,
one must extends mapactivity,the other must extends list activity,
if it possible to do that?
View 7 Replies
View Related
May 5, 2010
I'm just starting with Android and can't find how to display a list in my activity. The activity and the layout main.xml are shown below. How can I display the country array in the ListView 'list' of my layout?
CODE:..............
main.xml
CODE:.........................
View 3 Replies
View Related
Jan 20, 2010
I want to display data in list activity. How do I achieve this?
TITLE Date
Sub Title Button
TITLE Date
Sub Title Button
TITLE Date
Sub Title Button
.
.
.
.
and so on
Does a tutorial exist related to custom list activity?
View 1 Replies
View Related
Jan 20, 2010
I want to put description and buttons dynamically can any one guide how can i do that? i have data in the form of object list/array i.e ID,Title and want to display in list activity like..
TITLE [Details Button] [Edit Button] (repeating in list activity)
View 1 Replies
View Related
Mar 23, 2009
I'm trying to get the scroll position on a ListActivity. Here is what I'm trying to do: I have a list activity that is populated from an XML file. Another thread downloads all pictures so the user can see the list while the thread is still downloading the files.
What I'm trying to do is when the thread finishes getting all pics it reads the listview scroll position, refresh the listview and scroll to that position again.
ListView main = getListView(); <-- not sure if I'm really getting the ListView this way. int scY = main.getScrollY(); Log.d("Scroll", scY + " "); <--- this is printing zero even when at the moment I run this I already scrolled the list. setListAdapter(listadapter); main.scrollTo(0, scY);
View 10 Replies
View Related
Oct 13, 2010
I want to display the same options menu on all of my application's activities. I created a generic Activity that implements the menu, and all my further activies extend it. The problem: when I need to extend other specific activities, like ListActivity and MapActivity, I can't figure out how to extend the generic activity and add the List or Map behaviour to the new class. To deal with the issue I had to create three different generic activities, each extending Activity, ListActivity and MapActivity.I've tried creating an abstract activity but it doesn't work, I would need to extend two classes at the same time. I could try interfaces but since I can't implement methods, I would have to paste the menu implementation all over the second-level classes, right?
View 1 Replies
View Related
May 13, 2010
I have created a list activity where i have placed some items and i am using OnListItemClick to get the desired actions through D-pad and KeyLeft and KeyRight Buttons, In Emulator TouchEvent is not working , I want to know whether it works in real Handsets? How can i enable the TOuchEvent? also Can anyone please help me out in this.
View 2 Replies
View Related
Aug 6, 2010
I'm working with a list view trying to get specific activities to open when a certain item is selected. This is the code that I'm working with right now. I know its wrong but am not sure what I need to change it make it work. I think I need an intent and tried a few ideas but did not come up with much.
CODE:............
View 1 Replies
View Related
Aug 10, 2010
I'm trying to get the ListView by using the findViewById function, yet I'm unsure what I am trying to find or what to put. R.id.list does not work.
View 1 Replies
View Related
Jun 2, 2010
I have requirement like this- my activity contains some textviews at the top then the expandable list view in the middle and a button at the bottom. my problem is when i clicked on
expandable list view the expanded list get accommodated in the space between button and expandable list view.
I wanted expandable list view to get expanded full and button should move downward according to the contains of the expandable list view. And i have used scrollview as a main layout.
thank you
View 1 Replies
View Related
Jun 16, 2009
I want to customize my ExpandableList my issue is i need a button and expandable list on single activity can i achieve that as i have seen all the examples they all extends ExpandableListActivity not the Activity in which i can put all the widgets in one activity
View 1 Replies
View Related
May 3, 2009
I need some help using ListActivity. The API provides "onListItemClick" which you can override and is called when user selects an item in the list.
However I want the same type of functionality when an item in the list is selected. So as soon as user highlights something in the list I want my application to do something (like play a preview). I dont want to wait for user to select the button.
View 2 Replies
View Related
Oct 6, 2010
I would like to have my list activity to display 2 items(title, content) in a single row. I have almost 10 rows to display like that. And I want the width of the columns to be equally spread out. I tried with linear layout and table layout, but I could not bring the columns equally sized. I am using the following layout. kindly help me and advice me on this....
code.............
View 3 Replies
View Related
May 20, 2010
I am trying to create app widget.In this widget I have added one image button.If i click on this button i should pass list of object to next activity.Before passing this list to activity I am converting it to parceable list and adding it to bunddle and puting that bundle to intent.This logic is working fine in android 1.6, but this is not working in Android 2.1.In android 2.1.I am getting Null pointer excepion when I try to access this list in next activity.To solve this problem I tried to pass only String data through bundle,in next activity String is displaying properly,but when I try to pass list,then only i am not getting list in next activity.
View 5 Replies
View Related
Nov 18, 2010
In my project In the first section i have parsed the xml data of Video categories and image url links from My web service.I have parsed that data and receive that data in ArrayList in My main activity.The first ArrayList is the list of video categories and the second ArrayList is the the list of video image urls and i have to display ArrayList of image urls as ImageView in ListView ,i have no idea for that,please give me some solution.
View 2 Replies
View Related
May 29, 2010
I am extending BaseAdapter and trying to populate the List Screen on my Activity Screen. NotifyDataSetChanged is not working as expected. Please find the below snippet of code.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); initialize();
context = this; config = Config.getInstance();
searchText = new EditText(this); handler = new Handler() {
@Override public void handleMessage(Message msg) {
msgQueueAdapter.notifyDataSetChanged();
context.msgQueueAdapter.notifyDataSetChanged();
msgQueueAdapter.notifyDataSetInvalidated(); } };
View 6 Replies
View Related
Jul 24, 2010
I have a ListView that contains some data from sqllite table.the table is updated by some other process, and I would like to refresh it's data.The strange thing is that if I open another activity, then go back -it WILL refresh itself.
View 2 Replies
View Related
