Added onLongClick handler

Author: radzio

app/src/main/java/net/droidlabs/mvvmdemo/view/UsersView.java

@@ -10,6 +10,7 @@
 import android.widget.EditText;
 import android.widget.Toast;
 import net.droidlabs.mvvm.recyclerview.adapter.ClickHandler;
+import net.droidlabs.mvvm.recyclerview.adapter.LongClickHandler;
 import net.droidlabs.mvvm.recyclerview.adapter.binder.CompositeItemBinder;
 import net.droidlabs.mvvm.recyclerview.adapter.binder.ItemBinder;
 import net.droidlabs.mvvmdemo.BR;
@@ -66,7 +67,19 @@ public ClickHandler<UserViewModel> clickHandler()
             @Override
             public void onClick(UserViewModel user)
             {
-                Toast.makeText(UsersView.this, user.getFirstName() + " " + user.getLastName(), Toast.LENGTH_LONG).show();
+                Toast.makeText(UsersView.this, user.getFirstName() + " " + user.getLastName(), Toast.LENGTH_SHORT).show();
+            }
+        };
+    }
+
+    public LongClickHandler<UserViewModel> longClickHandler()
+    {
+        return new LongClickHandler<UserViewModel>()
+        {
+            @Override
+            public void onLongClick(UserViewModel user)
+            {
+                Toast.makeText(UsersView.this, "LONG CLICK: " + user.getFirstName() + " " + user.getLastName(), Toast.LENGTH_SHORT).show();
             }
         };
     }

app/src/main/res/layout/users_view.xml

@@ -27,6 +27,7 @@
             app:items="@{usersViewModel.users}"
             app:itemViewBinder="@{view.itemViewBinder}"
             app:clickHandler="@{view.clickHandler}"
+            app:longClickHandler="@{view.longClickHandler}"
             />
 
         <LinearLayout

recyclerview-binding/src/main/java/net/droidlabs/mvvm/recyclerview/adapter/BindingRecyclerViewAdapter.java

@@ -14,14 +14,15 @@
 import java.lang.ref.WeakReference;
 import java.util.Collection;
 
-public class BindingRecyclerViewAdapter<T> extends RecyclerView.Adapter<BindingRecyclerViewAdapter.ViewHolder> implements View.OnClickListener
+public class BindingRecyclerViewAdapter<T> extends RecyclerView.Adapter<BindingRecyclerViewAdapter.ViewHolder> implements View.OnClickListener, View.OnLongClickListener
 {
     private static final int ITEM_MODEL = -124;
     private final WeakReferenceOnListChangedCallback onListChangedCallback;
     private final ItemBinder<T> itemBinder;
     private ObservableList<T> items;
     private LayoutInflater inflater;
     private ClickHandler<T> clickHandler;
+    private LongClickHandler<T> longClickHandler;
 
     public BindingRecyclerViewAdapter(ItemBinder<T> itemBinder, @Nullable Collection<T> items)
     {
@@ -94,6 +95,7 @@ public void onBindViewHolder(ViewHolder viewHolder, int position)
         viewHolder.binding.setVariable(itemBinder.getBindingVariable(item), item);
         viewHolder.binding.getRoot().setTag(ITEM_MODEL, item);
         viewHolder.binding.getRoot().setOnClickListener(this);
+        viewHolder.binding.getRoot().setOnLongClickListener(this);
         viewHolder.binding.executePendingBindings();
     }
 
@@ -119,6 +121,18 @@ public void onClick(View v)
         }
     }
 
+    @Override
+    public boolean onLongClick(View v)
+    {
+        if (clickHandler != null)
+        {
+            T item = (T) v.getTag(ITEM_MODEL);
+            longClickHandler.onLongClick(item);
+            return true;
+        }
+        return false;
+    }
+
     public static class ViewHolder extends RecyclerView.ViewHolder
     {
         final ViewDataBinding binding;
@@ -195,4 +209,9 @@ public void setClickHandler(ClickHandler<T> clickHandler)
     {
         this.clickHandler = clickHandler;
     }
+
+    public void setLongClickHandler(LongClickHandler<T> clickHandler)
+    {
+        this.longClickHandler = clickHandler;
+    }
 }

recyclerview-binding/src/main/java/net/droidlabs/mvvm/recyclerview/adapter/LongClickHandler.java

@@ -0,0 +1,6 @@
+package net.droidlabs.mvvm.recyclerview.adapter;
+
+public interface LongClickHandler<T>
+{
+    void onLongClick(T viewModel);
+}

recyclerview-binding/src/main/java/net/droidlabs/mvvm/recyclerview/binding/RecyclerViewBindings.java

@@ -5,13 +5,15 @@
 import net.droidlabs.mvvm.recyclerview.adapter.BindingRecyclerViewAdapter;
 import net.droidlabs.mvvm.recyclerview.adapter.binder.ItemBinder;
 import net.droidlabs.mvvm.recyclerview.adapter.ClickHandler;
+import net.droidlabs.mvvm.recyclerview.adapter.LongClickHandler;
 
 import java.util.Collection;
 
 public class RecyclerViewBindings
 {
     private static final int KEY_ITEMS = -123;
-    private static final int KEY_HANDLER = -124;
+    private static final int KEY_CLICK_HANDLER = -124;
+    private static final int KEY_LONG_CLICK_HANDLER = -125;
 
     @SuppressWarnings("unchecked")
     @BindingAdapter("items")
@@ -39,7 +41,22 @@ public static <T> void setHandler(RecyclerView recyclerView, ClickHandler<T> han
         }
         else
         {
-            recyclerView.setTag(KEY_HANDLER, handler);
+            recyclerView.setTag(KEY_CLICK_HANDLER, handler);
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    @BindingAdapter("longClickHandler")
+    public static <T> void setHandler(RecyclerView recyclerView, LongClickHandler<T> handler)
+    {
+        BindingRecyclerViewAdapter<T> adapter = (BindingRecyclerViewAdapter<T>) recyclerView.getAdapter();
+        if (adapter != null)
+        {
+            adapter.setLongClickHandler(handler);
+        }
+        else
+        {
+            recyclerView.setTag(KEY_LONG_CLICK_HANDLER, handler);
         }
     }
 
@@ -48,7 +65,7 @@ public static <T> void setHandler(RecyclerView recyclerView, ClickHandler<T> han
     public static <T> void setItemViewBinder(RecyclerView recyclerView, ItemBinder<T> itemViewMapper)
     {
         Collection<T> items = (Collection<T>) recyclerView.getTag(KEY_ITEMS);
-        ClickHandler<T> clickHandler = (ClickHandler<T>) recyclerView.getTag(KEY_HANDLER);
+        ClickHandler<T> clickHandler = (ClickHandler<T>) recyclerView.getTag(KEY_CLICK_HANDLER);
         BindingRecyclerViewAdapter<T> adapter = new BindingRecyclerViewAdapter<>(itemViewMapper, items);
         if(clickHandler != null)
         {