and the romain guy video you looking for http://code.google.com/events/io/2009/sessions/TurboChargeUiAndroidFast.html
regards, Ravi - The PPite PathPartner Tech On May 25, 9:15 am, Paul <[email protected]> wrote: > This has to do with the fact that ListView recycles views. View > Romain Guy's Google I/O talk about ListView when it comes out. It is > really good and explains exactly why you're seeing this happen. > > On Apr 30, 10:20 am, David <[email protected]> wrote: > > > > > Hey, > > > I am facing a very mysterious Problem. I am using a ListView with > > CheckBoxes that can be clicked to select people. > > The row layout is the following: > > > <?xml version="1.0" encoding="utf-8"?> > > <LinearLayout > > xmlns:android="http://schemas.android.com/apk/res/android"; > > android:orientation="horizontal" > > android:layout_width="fill_parent" > > android:layout_height="wrap_content"> > > <CheckBox > > android:focusable="false" > > android:onClick="onSelectPerson" > > android:layout_width="wrap_content" > > android:layout_height="wrap_content" > > android:gravity="center_vertical" > > android:layout_marginRight="5dip" > > android:layout_marginLeft="5dip"/> > > <TextView > > android:id="@+id/person_name" > > android:text="test" > > android:layout_width="wrap_content" > > android:layout_height="wrap_content" > > android:gravity="center_vertical" > > android:textSize="18dip" android:layout_marginLeft="5dip"/> > > </LinearLayout> > > > As long as the amount of rows doesen't exceed the screen size (-> no > > scrolling) everything works just fine. > > But as soon as I have more rows then the screen size (-> some rows are > > hidden and have to be scrolled to). > > I have a very mysterious phenomenon: > > > If I check the top row and scroll down some of the previously hidden > > rows are randomly checked too. If I scroll up again, again some of the > > before hidden rows are randomly vhecked (the CheckBox I clicked in > > first place may or may not still be checked). > > Also the registered onSelectPerson callback is only called for the > > CheckBoxes I really click. The other CheckBoxes just change their > > state to "checked" without calling the callback method. > > I have the same phenomenom on the Archos IT 5 and the Nexus One. > > > This must have something to do with the ListView implementation but I > > can't quite figure out what the problem is. > > Can anyone help? > > > Best Regards > > > David > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group > > athttp://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 [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group > athttp://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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
