CODEWITHSUNDEEP
androidlistviewcontacts
Husayn Hakeem
Husayn Hakeem

Reputation: 4570

Android contacts list

I'm working on a sort of contacts book for my app, I want to do something like in the picture beneath:

enter image description here

The contact names will be in a scrollable list, but I want the letetr on the left to follow the names until the next letter shows up. I'm not quite sure how to do this, I thought of having a structure like this in the corresponding xml layout file: 

<LinearLayout>
   <ListView>
      <ImageView />
      <ListView />
   </ListView>
</LinearLayout>

Is this the right way to go about it ?

Upvotes: 2

Views: 447

Answers (3)

GVillani82
GVillani82

Reputation: 17429

If you want to implement it with a RecyclerView you can take a look at this project. You can customize the left pin either with a simple text or an image.

The idea is to use a CoordinatorLayout in which you have the pin. Assigning a behavior to this pin you can get the result you want.

Upvotes: 0

IntelliJ Amiya
IntelliJ Amiya

Reputation: 75788

@Husayn Hakeem : For your information,Your requiremet is Lollipop's Contacts. Its special type of ListView (PinnedHeaderListView)with pinned section headers for Android.So please check ListViewVariants Demo .I hope it helps you.

Upvotes: 2

innoSPG
innoSPG

Reputation: 4656

What you have to do is to add an OnScrollListener (listView.setOnScrollListener) to your listview. Then implements the methods 

public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount)

and/or

public void onScrollStateChanged(AbsListView view, int scrollState)

With the first one, you have a lot of information to use to manage what you want. For example, if you want the letter to correspond to the first element in the list view, You get the first letter of the first element and draw it.

Upvotes: 1

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