[android-developers] Listview items focus change event
Hi, I have an application which has a custom listview. I run it on a smart tv android device and the whole navigation is based on the standard keyboard arrow buttons. I am able to scroll up and down through the list items using up and down arrow keys. When I scroll using keys, the list selector moves appropriately. I need to do somethings based on the item being focused. But, I could not find a way to get the list item focus changed event. Essentially, I need to know whenever a list item takes the focus. I tried to set the focuschangelistener for the view that I am returning in getView() method. But its not working. Any help is appreciated. thanks, Shashidhar -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [android-developers] ListView items
On Wed, May 9, 2012 at 5:49 PM, nageswara rao rajana nagu.raj...@gmail.com wrote: Hi, How to generate xml file form list view items. Please help me... Did you want this or something else? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] ListView items
just go through this link http://appfulcrum.com/2010/09/05/listview-example-2-using-xml-resource-file/ -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] ListView items
On Thu, May 10, 2012 at 11:59 AM, Narendra Singh Rathore
nsr.curi...@gmail.com wrote:
On Wed, May 9, 2012 at 5:49 PM, nageswara rao rajana
nagu.raj...@gmail.com wrote:
Hi,
How to generate xml file form list view items.
Please help me...
Did you want this or something else?
sry for this incomplete thread.
Well, I was suggesting this.
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView? arg0, View arg1, int arg2, long
arg3) {
// TODO Auto-generated method stub
if(arg2==0)
{
setContentView(R.layout.one);
}
else
{
setContentView(R.layout.two);
}
}
});
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[android-developers] ListView items
Hi, How to generate xml file form list view items. Please help me... Thanking you. nagu. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] ListView items
http://danroundhill.com/2009/12/18/working-with-the-android-listview/ On Wed, May 9, 2012 at 5:49 PM, nageswara rao rajana nagu.raj...@gmail.comwrote: Hi, How to generate xml file form list view items. Please help me... Thanking you. nagu. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- WITH REGARDS ARUN KUMAR P D +91-9994794759 -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] ListView items
Hi Treking This is not the answer. On Fri, Aug 19, 2011 at 5:45 PM, TreKing treking...@gmail.com wrote: On Fri, Aug 19, 2011 at 7:41 PM, Goutom goutom.sust@gmail.com wrote: Any help? Use the adapter that backs the listview. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] ListView items
On Fri, Aug 19, 2011 at 8:41 PM, Goutom goutom.sust@gmail.com wrote:
I want to get all child of a listview.
Why?
int count = listview.getAdapter().getCount();
This is not the number of children of the ListView. getChildCount() on
ListView is the number of children of the ListView.
for (int i = 0; i count; ++i) {
View row = (View) listview.getChildAt(i); // this line return null when
the view is not in focus is listview.
CheckBox check = (CheckBox) row.findViewById(R.id.AppCheckBox);
if (check.isChecked()) {
// some code
} else
// some code
}
I have 10 row in listview, 8 in focus.
No, you have 8 rows in your ListView. Your adapter might have 10
items, but you only have 8 rows in the ListView.
After looping 8 times it gives null for View row.
Of course. That's what you wrote.
If you didn't want it to crash, do not compare apples (number of items
in the adapter) to oranges (number of children of the ListView).
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http://commonsware.com | http://github.com/commonsguy
http://commonsware.com/blog | http://twitter.com/commonsguy
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Re: [android-developers] ListView items
On Sat, Aug 20, 2011 at 6:57 AM, Goutom goutom.sust@gmail.com wrote: Hi Treking This is not the answer. I respectfully disagree. But hey, it's your app. Good luck. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] ListView items
Hi All,
I want to get all child of a listview.
int count = listview.getAdapter().getCount();
for (int i = 0; i count; ++i) {
View row = (View) listview.getChildAt(i); // this line return null when
the view is not in focus is listview.
CheckBox check = (CheckBox) row.findViewById(R.id.AppCheckBox);
if (check.isChecked()) {
// some code
} else
// some code
}
I have 10 row in listview, 8 in focus.After looping 8 times it gives null
for View row.
Any help?
Thanks in advance.
Regards
Goutom
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Re: [android-developers] ListView items
On Fri, Aug 19, 2011 at 7:41 PM, Goutom goutom.sust@gmail.com wrote: Any help? Use the adapter that backs the listview. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] ListView items height
Hi! I have to build a functionality that would allow the user to browse the tweets from a twitter account. My problem is how to know the appropriate height for the items in the list, since each tweet has a variable number of characters, how do I know the height for each item in the list (as a function of its content lenght)? Thanks. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] ListView items appear 2 or 3 times
Hi all,
I'm having an issue with the ListView in Android.
So I have an activity extending the ListActivity, in the activity I
have an innerclass for my adapater.
Now both on my device and the emulator some entries appear 2 or 3
times in the list (not always the same items) although the size of my
ListLabel is always the same!
On the emulator I noticed that it's mostly related to the scrolling in
the list... If I scroll down some entries are duplicate, if I scroll
up and down again the entries have changed all over the list...
Is there anything in my code that you guys can see that is wrong?
Here's my code:
this.labels = labelService.findAll();
Collections.sort(this.labels, new LabelByNameComparator());
Log.d(LOG_TAG, labels.size() + labels loaded!);
ManageLabelsListAdapter adapter = new
ManageLabelsListAdapter(labels);
adapter.notifyDataSetChanged();
setListAdapter(adapter);
/**
* The list adapater private inner-class used to display the
manage labels list.
*/
private class ManageLabelsListAdapter extends ArrayAdapterLabel
{
private final String LOG_TAG =
ManageLabelsListAdapter.class.getSimpleName();
/**
* {@inheritDoc}
*/
public ManageLabelsListAdapter(ListLabel labels) {
super(ManageLabelsActivity.this,
R.layout.list_item_labels, labels);
Log.d(LOG_TAG, Creating the manage labels list
adapater);
}
@Override
public View getView(int position, View convertView, ViewGroup
parent) {
Log.d(LOG_TAG, Getting view...);
View row = convertView;
ManageLabelsListWrapper wrapper;
if(row == null) {
Log.d(LOG_TAG, Row needs to be created!);
final Label label = labels.get(position);
Log.d(LOG_TAG, Label at list position + position +
retrieved from DB list: + label);
LayoutInflater inflater = getLayoutInflater();
row = inflater.inflate(R.layout.list_item_labels,
parent, false);
Log.d(LOG_TAG, Label row inflated into layout!);
wrapper = new ManageLabelsListWrapper(row);
Log.d(LOG_TAG, Row wrapped!);
TextView labelName = wrapper.getLabelname_listitem();
Log.d(LOG_TAG, About to update the name of the label
in the view for TextView + labelName + with the value: +
label.getName());
labelName.setText(label.getName());
ImageView deleteButton = wrapper.getBtn_delete();
deleteButton.setOnClickListener(new
View.OnClickListener() {
public void onClick(View view) {
deleteLabel(label, true);
}
});
}
return row;
}
}
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Re: [android-developers] ListView items appear 2 or 3 times
You are not handling row recycling properly. You have the if
(row==null) case, but you do nothing in the other case. You need to
bind your row widgets with the proper data in either case -- the only
difference between the two is that if (row==null), you have to create
a row, either directly via inflation or via chaining to the
superclass.
On Sun, Feb 6, 2011 at 11:39 AM, Dirk Vranckaert
dirkvrancka...@gmail.com wrote:
Hi all,
I'm having an issue with the ListView in Android.
So I have an activity extending the ListActivity, in the activity I
have an innerclass for my adapater.
Now both on my device and the emulator some entries appear 2 or 3
times in the list (not always the same items) although the size of my
ListLabel is always the same!
On the emulator I noticed that it's mostly related to the scrolling in
the list... If I scroll down some entries are duplicate, if I scroll
up and down again the entries have changed all over the list...
Is there anything in my code that you guys can see that is wrong?
Here's my code:
this.labels = labelService.findAll();
Collections.sort(this.labels, new LabelByNameComparator());
Log.d(LOG_TAG, labels.size() + labels loaded!);
ManageLabelsListAdapter adapter = new
ManageLabelsListAdapter(labels);
adapter.notifyDataSetChanged();
setListAdapter(adapter);
/**
* The list adapater private inner-class used to display the
manage labels list.
*/
private class ManageLabelsListAdapter extends ArrayAdapterLabel
{
private final String LOG_TAG =
ManageLabelsListAdapter.class.getSimpleName();
/**
* {@inheritDoc}
*/
public ManageLabelsListAdapter(ListLabel labels) {
super(ManageLabelsActivity.this,
R.layout.list_item_labels, labels);
Log.d(LOG_TAG, Creating the manage labels list
adapater);
}
@Override
public View getView(int position, View convertView, ViewGroup
parent) {
Log.d(LOG_TAG, Getting view...);
View row = convertView;
ManageLabelsListWrapper wrapper;
if(row == null) {
Log.d(LOG_TAG, Row needs to be created!);
final Label label = labels.get(position);
Log.d(LOG_TAG, Label at list position + position +
retrieved from DB list: + label);
LayoutInflater inflater = getLayoutInflater();
row = inflater.inflate(R.layout.list_item_labels,
parent, false);
Log.d(LOG_TAG, Label row inflated into layout!);
wrapper = new ManageLabelsListWrapper(row);
Log.d(LOG_TAG, Row wrapped!);
TextView labelName = wrapper.getLabelname_listitem();
Log.d(LOG_TAG, About to update the name of the label
in the view for TextView + labelName + with the value: +
label.getName());
labelName.setText(label.getName());
ImageView deleteButton = wrapper.getBtn_delete();
deleteButton.setOnClickListener(new
View.OnClickListener() {
public void onClick(View view) {
deleteLabel(label, true);
}
});
}
return row;
}
}
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Re: [android-developers] ListView items appear 2 or 3 times
Dirk,
You have a bug in your getView() method.
When a list item layout gets recycled (convertView != null), your code
correctly avoids re-inflating a new layout. However, since the item
layout is being recycled, it's also necessary to update its views with
values for the current item.
Pseudo-code:
getView() {
if (convertView == null) {
inflate a view
}
/* Always execute below code, for both new and recycled item layouts */
YourDataItem item = get data item specified by position
TextView view1.setText(item.name);
TextView view2.setText(item.address);
// etc
}
-- Kostya
06.02.2011 19:39, Dirk Vranckaert пишет:
Hi all,
I'm having an issue with the ListView in Android.
So I have an activity extending the ListActivity, in the activity I
have an innerclass for my adapater.
Now both on my device and the emulator some entries appear 2 or 3
times in the list (not always the same items) although the size of my
ListLabel is always the same!
On the emulator I noticed that it's mostly related to the scrolling in
the list... If I scroll down some entries are duplicate, if I scroll
up and down again the entries have changed all over the list...
Is there anything in my code that you guys can see that is wrong?
Here's my code:
this.labels = labelService.findAll();
Collections.sort(this.labels, new LabelByNameComparator());
Log.d(LOG_TAG, labels.size() + labels loaded!);
ManageLabelsListAdapter adapter = new
ManageLabelsListAdapter(labels);
adapter.notifyDataSetChanged();
setListAdapter(adapter);
/**
* The list adapater private inner-class used to display the
manage labels list.
*/
private class ManageLabelsListAdapter extends ArrayAdapterLabel
{
private final String LOG_TAG =
ManageLabelsListAdapter.class.getSimpleName();
/**
* {@inheritDoc}
*/
public ManageLabelsListAdapter(ListLabel labels) {
super(ManageLabelsActivity.this,
R.layout.list_item_labels, labels);
Log.d(LOG_TAG, Creating the manage labels list
adapater);
}
@Override
public View getView(int position, View convertView, ViewGroup
parent) {
Log.d(LOG_TAG, Getting view...);
View row = convertView;
ManageLabelsListWrapper wrapper;
if(row == null) {
Log.d(LOG_TAG, Row needs to be created!);
final Label label = labels.get(position);
Log.d(LOG_TAG, Label at list position + position +
retrieved from DB list: + label);
LayoutInflater inflater = getLayoutInflater();
row = inflater.inflate(R.layout.list_item_labels,
parent, false);
Log.d(LOG_TAG, Label row inflated into layout!);
wrapper = new ManageLabelsListWrapper(row);
Log.d(LOG_TAG, Row wrapped!);
TextView labelName = wrapper.getLabelname_listitem();
Log.d(LOG_TAG, About to update the name of the label
in the view for TextView + labelName + with the value: +
label.getName());
labelName.setText(label.getName());
ImageView deleteButton = wrapper.getBtn_delete();
deleteButton.setOnClickListener(new
View.OnClickListener() {
public void onClick(View view) {
deleteLabel(label, true);
}
});
}
return row;
}
}
--
Kostya Vasilyev -- WiFi Manager + pretty widget -- http://kmansoft.wordpress.com
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[android-developers] ListView items in Activity Persist on G1 keyboard slideout, but not Dialog list items
Guys, When your intent kicks knocked on the head by the OS and then restored/ recreated (for example when you slide out the keyboard on the G1) if you have a ListView populated with items in an activity they appear after the recreate. However, if you have a dialog box full of list items and do the same steps, the ListView comes back up empty when the window is redrawn after the slide. Is this an Android bug? My list is a pain in the neck to pack into a bundle, it consists of Address objects, and there might be ten of them. Am I doing something un-android? I'm thinking of just dimissing the dialog when this happens. But calling dismiss in onRestore (for the dialog) doesn't seem to work. Any ideas? Thanks so much! best, pawpaw17 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
