android-data-binding-recyclerview


Source link: https://github.com/radzio/android-data-binding-recyclerview

Android Data Binding + RecyclerView

Using Recyclerview with the new Android Data Binding framework.

How to start?

Just clone this repository and start playing with it! If you want to use some parts of this repository in your project read below.

Change your gradle file

  • In your main build.gradle add:
classpath 'com.android.tools.build:gradle:1.5.0'
  • In your app build.gradle add:
 dataBinding {

enabled = true
  
}

Modify your layout

Remember to use your classes and packages ;-).

<!-- layout.xml --> <layout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto">
  <data>

<variable

 name="usersViewModel"

 type="net.droidlabs.mvvmdemo.viewmodel.UsersViewModel"/>
  </data>  <android.support.v7.widget.RecyclerView

 android:id="@+id/activity_users_recycler"

 android:scrollbars="vertical"

 android:layout_width="match_parent"

 android:layout_height="match_parent"

 app:items="@{
usersViewModel.users
}
"

 app:itemViewBinder="@{
usersViewModel.itemViewBinder
}
"

 /> </layout>

Modify your activity

 // your activity  @Override
  protected void onCreate(Bundle savedInstanceState)
  {

super.onCreate(savedInstanceState);

usersViewModel = new UsersViewModel();

usersViewModel.users.add(new SuperUserViewModel(new User("Android", "Dev")));

 binding = DataBindingUtil.setContentView(this, R.layout.users_view);

binding.setUsersViewModel(usersViewModel);

binding.activityUsersRecycler.setLayoutManager(new LinearLayoutManager(this));

  
}

Modify your ViewModel class

 public class UsersViewModel extends BaseObservable
  {

public ObservableArrayList<UserViewModel> users;

 public ItemBinder<UserViewModel> itemViewBinder()

 {

  return new ItemBinderBase<UserViewModel>(BR.user, R.layout.item_user);

 
}

  
}

Some details

Your ViewModel ( UsersViewModel in my example) should have field of ObservableArrayList type which will be bind to recycler view.

Next thing is ItemViewBinder. This class is used in BindingRecyclerViewAdapter for creating ViewHolders and it's item views bindings. In my example I've created CompositeItemBinder in order to support two different item types with separate layouts. If you want to display list with one data type you can use ItemBinderBase:

 public ItemBinder<YourClass> itemViewBinder()
  {

  return new ItemBinderBase<YourClass>(BR.your_variable_name, R.layout.your_item_layout);

  
}

Please look at UsersView.java and UsersViewModel.java if something is unclear.

Resources

BannerTime creates a scheduled popup to show your personal message.

This library runs background service that is listening for shake movements in device.

Android library for material scrolling techniques.

Features:

  • Easily implement material scrolling techniques with RecyclerView.
  • Customize the behavior while scrolling.
  • Support RecyclerView in ViewPager.

This tool can retrieve dex, jar, smali, xml files, res, etc.

BatchPackApk is a tool for batch package Android apk with channel string.

A pretty label view.

Topics


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