Thank you very much. It is helpful. And I have another question.
I defined the List item in a xml like below: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/ android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="5px"> <TextView android:id="@+id/reminder_item_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" /> <Button android:id="@+id/reminder_item_btn" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" /> </RelativeLayout> You know, the listview would hold more than one item. Every item has a button with the same id "reminder_item_btn". Then how can i get to know which button is pressed? On Aug 26, 10:03 am, Mark Murphy <[EMAIL PROTECTED]> wrote: > Andrew wrote: > > I have a question about the ListView. > > > Example: > > In a ListView, there are many items. If I press up/down key to select > > one item, what I want is show a button on the selected view, and if > > the selected item is unselected, the button will be hide. > > > How can I change the layout when the item gets selected? > > You might not be able to wholesale change the layout, but you can make > widgets visible/invisible/gone via setVisibility(). > > A heavier approach would be to make each row in the list a ViewFlipper, > or include a ViewFlipper, so that you can swap out a button-showing and > a button-hiding view upon selection. I would think hiding a single > button would be less resource-intensive than using a ViewFlipper, but I > may be wrong. > > -- > Mark Murphy (a Commons Guy)http://commonsware.com > _The Busy Coder's Guide to Android Development_ Version 1.1 Published! --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] Announcing the new Android 0.9 SDK beta! http://android-developers.blogspot.com/2008/08/announcing-beta-release-of-android-sdk.html For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
