STITCH: Hiding SECTION when source array is empty?

[niklas8...@gmail.com]

Hi,

Not sure if this is going to become a double since I just posted about this, but it never showed up...

Anyways, I have a ListView and in itemSource am using STITCH together with a number of SECTION and ADAPTER to display data from several source arrays. However, sometimes the arrays are empty, in which case only the SECTION is displayed. Is there any way to hide the SECTION when the array is empty? Similar to how the contact list in the phone hides the headers A, B and C if the first person has a name starting with D.

I notice this question has been asked before, but I never saw any definite reply indicating that someone managed to get it working and if so: how? 

After reading the discussion about STITCH in this google group, I tried using binding:visibility inside the layout xml for the section but was unable to get it to work (Error when resolving statement 'ShowSection'). I never found any way for the binding inside the section layout xml to find the BooleanObservable I created.

Hope it gets posted properly this time...

[Andy Tsui]

> After reading the discussion about STITCH in this google group, I tried using binding:visibility inside the layout xml for the section but was unable to get it to work (Error when resolving statement 'ShowSection'). I never found any way for the binding inside the section layout xml to find the BooleanObservable I created.

Sounds a possible approach, can you post your XML (for both STITCH and the children) and the VM of that section here?

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[niklas8...@gmail.com]

This is the test code I was creating to see if I could get it working...

in the layout xml for my activity:

...

<ListView 

   style="?android:attr/textAppearanceLarge"

   android:id="@+id/user_details_list"

   android:layout_width="fill_parent"

   android:layout_height="fill_parent"

   android:padding="16dp"

            binding:onItemClicked="ARG(ListItemClicked, =id/user_details_list.clickedItem)"

   binding:itemSource="STITCH(

   SECTION(@string/user_details_section_details, @layout/user_details_list_section),

   ADAPTER({source=GeneralInfoDetails, template=@layout/user_details_information_item})

    )" />

GeneralInfoDetails is an ArrayListObservable which might contain data about the user, or it might be empty. It is defined in the activity which inflates the xml and this binding is working fine.

In the xml user_details_list_section:

<LinearLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:binding="http://www.gueei.com/android-binding/"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:orientation="vertical"

    binding:visibility="ShowSection"

    >

 

<TextView xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:binding="http://www.gueei.com/android-binding/"

   android:layout_width="fill_parent"

   android:layout_height="wrap_content"

   android:textSize="18dip"

   android:gravity="bottom"

   binding:text="."

/>  

<View style="@style/HorizontalDividerView"/>

</LinearLayout>

ShowSection is a BooleanObservable inside the activity inflating the layout.

I was trying a number of combinations, but was unable to get it working... And since I never read any update here or on the blog comments that it was in fact working I decided to post and move on for now :)

Any ideas what might be wrong? Perhaps I am missing something obvious, would be grateful for help.

[niklas8...@gmail.com]

Did I miss or write something inappropriate in my reply today? It's deleted? If I am all wrong in my approach please let me know how I should have been doing it instead :) 

I was searching the demo on Android market for anything related to hiding sections but I couldnt find anything there or on the blog/documentation either, or I wouldnt be asking here...

On Friday, January 31, 2014 2:58:11 AM UTC+1, Andy Tsui wrote:

[Andy Tsui]

I'll answer this short question before reading your code :P

You need to "join" the group to post otherwise the message needs moderate before appearing in the group. 

[Niklas Linden]

Thanks, I have joined now :) 

[Niklas Linden]

So... Any suggestions about how I might get this working? :) If this is something that works for others, I am obviously doing something wrong, so I am grateful for any help.