Android :: Creating A ListActivity - Listview And Scrolling?

Aug 13, 2009

I have some problems when creating a ListActivity.

I have a listview and some other widgets and my listview is filled with a custom adapter.

You can see the images of this activity here:

http://www.grabup.com/uploads/ecd0d0eeb7b947e98b2e0d6c1be5478f.png?di...

Now the problem is. I have a scrollview and all the other views and widgets are placed inside of it. As you can see on the image, I don't see all of my 6 comments (that is the list). When i don't place the scrollview the height of the list is perfect (i have set android:layout_height to wrap_content (to my listview and parent LinearLayout). This is perfect but I have other widgets under the list and when the list reaches the bottom of the screen I can't to scroll to view my other widgets..

How can I fix this? I can set the height of the linearlayout manually but the problem is that the height doesnt has to be the same all the time (it loads the commens from my web service).. It has to fit the height of all the comments (like wrap_content normally does..)

Here is a part of the code with the layout and listview..

CODE:............................

Android :: creating a ListActivity - Listview and scrolling?


Android :: ListActivity Not Scrolling

Dec 29, 2009

I have a list Activity 4 which i have extended the BaseAdapter and the getview looks like this.

public View getView(int position, View convertView, ViewGroup parent) {
View row=null;
for(int i=0;i<10; {
row = convertView;
if(row==null) {
LayoutInflater inflater = mContext.getLayoutInflater();
row = inflater.inflate(R.layout.parsed,null); }
TextView id = (TextView)row.findViewById(R.id.id);
id.setText(idvector.elementAt(position));
TextView photo = (TextView)row.findViewById(R.id.photo);....

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Android :: Continuously Scrolling ListActivity

Jul 11, 2010

Is it possible to have a list activity that dosen't finish? i.e. if you scroll to the end of the list then the start of the list begins again? It's be best if you could also disable the scroll bar.

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Android :: Creating ListActivity With Button On Bottom

Oct 21, 2010

I wanted to know how to create a listActivity on Droid but on the bottom have a bottom to do whatever I want so like in a section of its own. Recently I tried merging two layouts with one being the row one for list Activity and a button but all I get are a list with buttons next to each line on the list so how can we do a list with a space on the bottom just for a button?

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Android : Turn List Scrolling Off When Calling On Content Changed In ListActivity

Jul 1, 2010

I got a ListActivity. I update the activity using onContentChanged() API. My problem is that each time I call the above API the list scrolls to the top. Is there any easy way to turn this "feature" off?

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Android :: How To Keep ListView Header From Scrolling With ListView Content?

Jun 24, 2009

There must be a way to do this. How can you tell a ListView that has a header to not scroll it when the user scrolls the contents? I want it to stay in a "stuck" position so that the user can always see what column the content applies to.

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Android :: ListView And ListActivity

Jun 30, 2009

I create a ListView in my activity and set its ChoiceMode to CHOICE_MODE_SINGLE, I also set its layout to simple_list_item_single_choice. But when i click on it onItemSelected() is never called and getCheckedItemPosition() returns -1. Why? the sample List10.java of ApiDemos uses ListActivity works well which just set the same as I done in my app. Any ideas?

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Android :: Using ListView Without ListActivity

Jan 13, 2010

I want to create a custom list view in my application. I want it to lay over the top of the application screen, with portions of the screen not filled by the listview showing the underlying application. I've been reading about ListActivity, how it can be started to handle item selected callbacks. I've also read about people simply inserting onClick handlers into the listview as it is drawn. I'm trying to decide the best way to proceed. Is it "dirty" to attach onClick handlers to the rows of a listview? It doesn't seem like the best approach, for instance, it only handles Touch Mode, not the DPAD clicks. This approach doesn't seem like what the architects had in mind. On the other hand, I don't see a good way that I can start a list activity and still have access to all the application variables I need. Do I pass the application in the context and refer back to it from even handlers after casting the context back to it's original class?

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Android :: ListActivity Mandatory For ListView

Dec 3, 2009

I am starting with ListActivity.

I saw apidemos and saw that it is based on ListActivity. My doubt is, in my first screen I need a few labels and texts under that a list. How to approach this ? I cant do a setContentlayut(R.id.main) if my activity extends ListActivity, no ?

more over I found the tutorial posted in the forums for ListActivity a bit outdated. Where is 1.5 / 1.6 based tutorials ? because I am new, it is taking too much time to correct 1.1 codes.

lastly, if i have a todo type appfor adding deleting and deleting, should i use 3 different layouts or activities ?

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Android :: Way To Implement A ListView Without ListActivity?

Feb 11, 2010

I'm new to Android, and I really need to do it this way (I've considered doing it in another Activity), but can anyone show me a simple code (just the onCreate method) that can do Listview without ListActivity?

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Android :: Way To Configure ListView Of ListActivity Via Xml?

Jul 28, 2010

Actually the question in subject... How to configure ListView of ListActivity via xml, for example padding, dividerHeight etc...

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Android :: Use A Listview Without Extending ListActivity In Class?

Nov 9, 2010

I have an application with various tabs (on a tabhost), each tab is an activity that extends activity, and haves some textfields and things on it

now i need that my tabs have inside a listview, but in the example from android developer guide says that you have to extend ListActivity and not Activity

basically i need to merge these two tutorials:

http://developer.android.com/resources/tutorials/views/hello-listview.html

http://developer.android.com/resources/tutorials/views/hello-tabwidget.html

i want to know how can i use a listview without extending listactivity on my class

someone knows? code...

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Android :: What ListActivity / ListView Provide Beyond A Regular Activity / View?

Aug 7, 2010

In Android, what functionality do ListActivity and ListView provide beyond a regular Activity and View?

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Android :: Changing A Divider With SetDivider In A ListActivity Without A Custom ListView?

Oct 29, 2010

I can't seem to get a customized divider, using a Drawable I've defined, to work when using a ListActivity and not creating a custom ListView. It almost seems like when the VM creates its own ListView for me, with the ListActivity, it uses a theme with the default divider provided; and if I try to provide one, no dividers appear in the ListView at all.

I know that I can create a custom ListView using XML and define android:divider on that ListView, and this does recognize my custom divider Drawable. But I would prefer to just let the ListActivity create its own ListView, if I can figure out how to get my own divider working on it.

Here's the code I'm using now:

CODE:............

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Android :: ListView Not Scrolling?

Jul 7, 2010

I'm trying to make a layout that is something similar to how the android market is...where say under comments there is what appears to be a ListView but it does not scroll (the whole page scroll but not the comments). I'm not sure if its even a ListView but I want something that looks like the list view (ie. have those divider bars and what not but NOT SCROLLABLE). There are people suggesting to use a LinearLayout instead of a ListView but I also what the items to be clickable and open a new activity. Please help?

My current layout tree is like so
<LinearLayout>
<ScrollView>
<RelativeLayout>

I am looking to put content inside the RelativeLayout.

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Android :: ListView Scrolling To Top

May 22, 2010

I have a ListView with custom rows. When any of these rows is clicked, the ListView's data is regenerated. I'd like the list to scroll back to the top when this happens.

I initially tried using setSelection(0) in each row's OnClickListener to achieve this but was unsuccessful (I believe because the ListView loses its scroll position when its data is invalidated - so my call to
setSelection is undone. I still don't understand how the ListView decides where to scroll to after invalidation, though).

The only working solution I know of was given by Romain Guy here: http://groups.google.com/group/android-developers/browse_thread/thread/127ca57414035301

It involves (View.post)ing the call to _listView.setSelection(0). I found this to perform quite poorly.
The newly generated list shows up with its scroll location unchanged and there is a considerable delay before it scrolls back to the top.

Is there any better way to achieve this functionality?

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Android :: Scrolling In A ListView?

Aug 19, 2010

In one of my projects I've got a ListView with hundreds of elements. But when scrolling through this list I get the following error:

CODE:.....................

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Android :: How To Get Header In Listview Without Scrolling

Dec 30, 2009

I want to display Header to my ListView. I used getListView ().addHeaderView() method to add header to Listview. but this is Header is scrolling with List.I want header should be constant.

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Android :: ListView Scrolling Very Slow

Oct 12, 2010

I am having a customized list view in my application, which is showing an image and text.

The Image I am getting from URL, using the code below:

CODE:..............

All is working perfect, except the list view scrolling, its very slow. If I disable the images, the scroll speed smooth-ens , but with the image enabled, it lags alot.

Is there any possible way I can reduce or remove this lagging?

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Android :: How To Get The ListView With Carousel Scrolling

Dec 24, 2009

I would like to have a ListView that scrolls in a carousel way, so when you scroll to the bottom and continue scolling, it should get back to the top element.

I do not want to use ViewSwitcher, nor ViewFlipper. How can I achieve that?

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Android :: OutOfMemoryError When Scrolling ListView

Jan 29, 2009

I'm having problems with ListViews in my application. I thought everything was fine until I noticed that if I scrolled up and down through the list quickly a number of times, sooner or later the app would crash with an OutOfMemoryError.

When I searched for the error I noticed a number of posts related to loading images. As my list items included a small arrow png, I assumed the problem lay here. However even after removing this and all other drawables I had (gradient background and list separator) the problem still remains.

Here's the stack trace

CODE:...............

I've had a look in DDMS and noticed that the percentage memory used in the heap doesn't go above 70%. Also, doesn't the reported 66K seem like a very small amount to be causing a crash?

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Android :: Disable ListView Scrolling?

Apr 24, 2010

I want to disable scrolling only of a ListView and keep it's items to still be click-able.

The idea is to control the scrolling via other means and not user touch. i.e. up/down buttons, or random scrolling...

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Android :: Stop Scrolling ListView?

Aug 5, 2010

I have a scenario, where I have three buttons(like tabs) and when clicking on each button, I am showing a listView, such that, I select one button and scroll the listView. During scrolling if I click on any other button, that list is also continue scrolling. Actually, I don't want the scrolling

When I click on any other button, it should not scroll and it should be in the starting position(means index 0).

I tried onScrollChangeListener(), in that onScrollStateChanged() is there.

I tried putting setSelection(0) in SCROLL_STATE_FLING & SCROLL_STATE_SCROLL state.

Its going to index zero, but continue from there, its still scrolling. How can I stop this scrolling.

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Android :: Lock The Scrolling Of ListView?

May 31, 2009

I want to lock the scrollBar of ListView.

I have tried to use some ways, but these all are not avairable. - ListView.setEnable(false) - implemented return false of areAllItemsEnabled() / isEnabled() of Adapter. - set to none attributes android:scrollbars of ListView of layout.xml

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Android :: Display This Listview On Scrolling?

Mar 18, 2010

I'm completely stumped on this one. I have three different lists that need to be displayed on the screen.
I've tried using a ScrollView with a LinearLayout child, and putting my ListViews in the LinearView, but all of the ListViews lock to a fixed height with scroll bars. Using other kinds of Layouts means no scrolling.

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Android :: Autohide Scrollbars When Not Scrolling In A ListView

May 17, 2010

In the new official Twitter app, the scrollbars in all the ListViews the app uses are hidden unless the user is scrolling through the list.

When you start scrolling, the scrollbars appear. When you stop, they fade out with an animation until they are gone completely.

I can't seem to find anything in the documentation that indicates this as being a standard feature.

Is this something included in the API? If not, anyone know how this might be done?

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Android :: Background ListView Becomes Black When Scrolling

May 14, 2010

I have created a specific List which exists out of the following elements to create a scrollable list with every row containing a Image on the left side and some text on the right side.As long as the screen is shown statically (as in no movement) it will be shown correctly, but when I start scrolling through the list the background of the row-item (an "icon" as can be shown in the code) will be shown corretcly but the background of the "root" layout will become completely black when the scrolling stops the background will, most of the times, get back it's color.As I test I also added a TextView in that root-element with the same background, this one will detain it's color when the List is scrolled.

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Android :: How To Avoid Header From Scrolling In Listview

Nov 24, 2010

I have a list view , where i am adding headerview to that list . every thing fine , but when am scrolling list headerview also moving with list, so i want to avoid headerview scrolling , i mean i have to scroll only list when i list reached to topview (titlebar),headerview has to remain bottom of titlebar .

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Android :: Error When Scrolling Down To The Bottom Of An ListView

Sep 25, 2010

I found a error that I dind't know about, Iam using a List, when Iam scrolling down to the bottom of the list it thows an error, why does this occur? Iamgeting the items from a service, and everything looks fine inte listview.

CODE:.................

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Android :: Reverse ListView Scrolling Behavior?

Sep 16, 2010

I have been trying now for a few hours to reverse the scrolling of behavior of the ListView. Essentially when scrolling down with my finger I want the list to scroll up!

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