[android-developers] Re: flashing element in ArrayAdapter
Sure, But, you will have to implement your own adapter if you would like to do this. You can change the particular items background for sometime and restore it. Simple I guess. -Kumar Bibek http://techdroid.kbeanie.com On Sep 12, 8:19 pm, Simone simone.russ...@gmail.com wrote: I have an ArrayAdapter in my activity, and when a certain event occur, I'd like to make a specific element flash, or have it highlighted in some way for a couple of seconds. Is there a way to do that? Thanks, Simone -- 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] Re: flashing element in ArrayAdapter
My class already extends ArrayAdapter. I was just wondering how can I retrieve a list of all the Views contained in the adapter, or if I had to keep track of them myself. -- 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] Re: flashing element in ArrayAdapter
Allright, I solved it. I made it so that the array adapter contains the list of the Views, and the getView() method simply returns list.get(position). I make the View flash by switching its visibility between VISIBLE and INVISIBLE for a second every 100ms, and it looks pretty decent. Thanks Simone -- 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] Re: flashing element in ArrayAdapter
On Sun, Sep 12, 2010 at 12:34 PM, Simone simone.russ...@gmail.com wrote: Allright, I solved it. I made it so that the array adapter contains the list of the Views, and the getView() method simply returns list.get(position). I make the View flash by switching its visibility between VISIBLE and INVISIBLE for a second every 100ms, and it looks pretty decent. This will be a significant memory hog unless it is a very short list (i.e., all Views are visible in the ListView). -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy Android Training...At Your Office: http://commonsware.com/training -- 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] Re: flashing element in ArrayAdapter
Well, the view isn't long (average 5 elements, maximum 20). What do you suggest? -- 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] Re: flashing element in ArrayAdapter
I meat the list of course, not view :D -- 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] Re: flashing element in ArrayAdapter
On Sun, Sep 12, 2010 at 12:52 PM, Simone simone.russ...@gmail.com wrote: Well, the view isn't long (average 5 elements, maximum 20). What do you suggest? Other than rethink your approach, I don't have a suggestion off the top of my head. I'm just telling you that if your maximum goes from 20 to 2000, and the user scrolls to the bottom, you're going to have memory problems. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy Android Training...At Your Office: http://commonsware.com/training -- 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] Re: flashing element in ArrayAdapter
On Sun, Sep 12, 2010 at 11:52 AM, Simone simone.russ...@gmail.com wrote: What do you suggest? Try thishttp://developer.android.com/reference/android/widget/AdapterView.html#getFirstVisiblePosition%28%29and thishttp://developer.android.com/reference/android/widget/AdapterView.html#getLastVisiblePosition%28%29to determine what's actually visible on the screen and flash those as necessary. - 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] Re: flashing element in ArrayAdapter
Ok, thanks. But I can say for sure that the list is not gonna be 2000 items long ;) Simone On 12 Set, 19:00, Mark Murphy mmur...@commonsware.com wrote: On Sun, Sep 12, 2010 at 12:52 PM, Simone simone.russ...@gmail.com wrote: Well, the view isn't long (average 5 elements, maximum 20). What do you suggest? Other than rethink your approach, I don't have a suggestion off the top of my head. I'm just telling you that if your maximum goes from 20 to 2000, and the user scrolls to the bottom, you're going to have memory problems. -- Mark Murphy (a Commons Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy Android Training...At Your Office:http://commonsware.com/training -- 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] Re: flashing element in ArrayAdapter
Simone, ListView has methods for getting indices of first / last visible item. Since only a few can fit on the screen, doing a linear search to find the right list item is still pretty efficient. -- Kostya 13.09.2010 0:23, Simone пишет: Ok, thanks. But I can say for sure that the list is not gonna be 2000 items long ;) Simone On 12 Set, 19:00, Mark Murphymmur...@commonsware.com wrote: On Sun, Sep 12, 2010 at 12:52 PM, Simonesimone.russ...@gmail.com wrote: Well, the view isn't long (average 5 elements, maximum 20). What do you suggest? Other than rethink your approach, I don't have a suggestion off the top of my head. I'm just telling you that if your maximum goes from 20 to 2000, and the user scrolls to the bottom, you're going to have memory problems. -- Mark Murphy (a Commons Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy Android Training...At Your Office:http://commonsware.com/training -- Kostya Vasilyev -- WiFi Manager + pretty widget -- http://kmansoft.wordpress.com -- 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
