Re: [android-developers] getViewTypeCount
This you would use if the list items are of different type, ie, one item could have a simple textview, and another could have a textview with a button, and provided you want to have a separate layout file for these two kinds of views. *Thanks and Regards, Kumar Bibek* * http://techdroid.kbeanie.com http://www.kbeanie.com* On Fri, Jul 27, 2012 at 8:13 PM, bob b...@coolfone.comze.com wrote: I'm writing a class that implements ListAdapter. I'm looking at this method: --- public abstract int getViewTypeCount () Since: API Level 1 Returns the number of types of Views that will be created by getView(int, View, ViewGroup). Each type represents a set of views that can be converted in getView(int, View, ViewGroup). If the adapter always returns the same type of View for all items, this method should return 1. This method will only be called when when the adapter is set on the the AdapterView. Returns The number of types of Views that will be created by this adapter Can someone help me understand why I must implement this method? It seems like it should not be necessary to do this. -- 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] getViewTypeCount
Another scenario where you would use this is if you want to have sections headers in your list... For example, if you are displaying a list of contacts in alphabetical order, you can have a section header every time you get to a new letter when scrolling through the list. In this case, you would return 2. If you only have a single type of item in your list, just implement this and always return 1. Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware On Fri, Jul 27, 2012 at 8:47 AM, Kumar Bibek coomar@gmail.com wrote: This you would use if the list items are of different type, ie, one item could have a simple textview, and another could have a textview with a button, and provided you want to have a separate layout file for these two kinds of views. *Thanks and Regards, Kumar Bibek* * http://techdroid.kbeanie.com http://www.kbeanie.com* On Fri, Jul 27, 2012 at 8:13 PM, bob b...@coolfone.comze.com wrote: I'm writing a class that implements ListAdapter. I'm looking at this method: --- public abstract int getViewTypeCount () Since: API Level 1 Returns the number of types of Views that will be created by getView(int, View, ViewGroup). Each type represents a set of views that can be converted in getView(int, View, ViewGroup). If the adapter always returns the same type of View for all items, this method should return 1. This method will only be called when when the adapter is set on the the AdapterView. Returns The number of types of Views that will be created by this adapter Can someone help me understand why I must implement this method? It seems like it should not be necessary to do this. -- 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 -- 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] getViewTypeCount
On Fri, Jul 27, 2012 at 9:43 AM, bob b...@coolfone.comze.com wrote: Can someone help me understand why I must implement this method? It seems like it should not be necessary to do this. You don't *have* to. It's *not* necessary to do this. On Fri, Jul 27, 2012 at 10:14 AM, Justin Anderson magouyaw...@gmail.comwrote: If you only have a single type of item in your list, just implement this and always return 1. FYI, that's unnecessary as that's the default implementation. You only need to override it if you have more than the standard one view in your list. - 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
Re: [android-developers] getViewTypeCount
On Fri, Jul 27, 2012 at 10:14 AM, Justin Anderson magouyaw...@gmail.comwrote: If you only have a single type of item in your list, just implement this and always return 1. FYI, that's unnecessary as that's the default implementation. You only need to override it if you have more than the standard one view in your list. I was going off of this from his original post: public *abstract* int getViewTypeCount () Whether or not you have to implement it would depend on what class you are deriving from. Based on the information he provided, he would have to implement. If he is subclassing a class that already implements that method then it is correct that he doesn't need to implement it. Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware On Fri, Jul 27, 2012 at 9:56 AM, TreKing treking...@gmail.com wrote: On Fri, Jul 27, 2012 at 9:43 AM, bob b...@coolfone.comze.com wrote: Can someone help me understand why I must implement this method? It seems like it should not be necessary to do this. You don't *have* to. It's *not* necessary to do this. On Fri, Jul 27, 2012 at 10:14 AM, Justin Anderson magouyaw...@gmail.comwrote: If you only have a single type of item in your list, just implement this and always return 1. FYI, that's unnecessary as that's the default implementation. You only need to override it if you have more than the standard one view in your list. - 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] getViewTypeCount
On Fri, Jul 27, 2012 at 12:42 PM, Justin Anderson magouyaw...@gmail.comwrote: I was going off of this from his original post: public *abstract* int getViewTypeCount () Whether or not you have to implement it would depend on what class you are deriving from. Based on the information he provided, he would have to implement. Ah, whoops, I missed that part. You're absolutely right. Please disregard my original post. - 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
