add vararg delegate parameter to AsyncListDifferDelegationAdapter

library/src/main/java/com/hannesdorfmann/adapterdelegates4/AbsDelegationAdapter.java

@@ -79,10 +79,7 @@ public AbsDelegationAdapter(@NonNull AdapterDelegatesManager<T> delegatesManager
      * @since 4.1.0
      */
     public AbsDelegationAdapter(@NonNull AdapterDelegate<T>... delegates) {
-        this();
-        for (int i = 0; i < delegates.length; i++) {
-            delegatesManager.addDelegate(delegates[i]);
-        }
+        this(new AdapterDelegatesManager<T>(delegates));
     }
 
     @NonNull

library/src/main/java/com/hannesdorfmann/adapterdelegates4/AdapterDelegatesManager.java

@@ -73,6 +73,21 @@ public class AdapterDelegatesManager<T> {
      */
     protected SparseArrayCompat<AdapterDelegate<T>> delegates = new SparseArrayCompat();
     protected AdapterDelegate<T> fallbackDelegate;
+
+    /**
+     * Creates a AdapterDelegatesManager without any delegates.
+     */
+    public AdapterDelegatesManager() {
+    }
+
+    /**
+     * Creates a AdapterDelegatesManager which already has the gived delegates added to it.
+     */
+    public AdapterDelegatesManager(@NonNull AdapterDelegate<T>... delegates) {
+        for (int i = 0; i < delegates.length; i++) {
+            addDelegate(delegates[i]);
+        }
+    }
 
     /**
      * Adds an {@link AdapterDelegate}.

library/src/main/java/com/hannesdorfmann/adapterdelegates4/AsyncListDifferDelegationAdapter.java

@@ -75,6 +75,41 @@ public AsyncListDifferDelegationAdapter(@NonNull AsyncDifferConfig differConfig,
         this.differ = new AsyncListDiffer<T>(new AdapterListUpdateCallback(this), differConfig);
         this.delegatesManager = delegatesManager;
     }
+
+    /**
+     * Adds a list of {@link AdapterDelegate}s
+     *
+     * @param delegates
+     * @since 4.2.0
+     */
+    public AsyncListDifferDelegationAdapter(@NonNull DiffUtil.ItemCallback<T> diffCallback,
+                                            @NonNull AdapterDelegate<List<T>>... delegates) {
+
+        if (diffCallback == null) {
+            throw new NullPointerException("ItemCallback is null");
+        }
+
+        this.differ = new AsyncListDiffer<T>(this, diffCallback);
+        this.delegatesManager = new AdapterDelegatesManager<List<T>>(delegates);
+    }
+
+
+    /**
+     * Adds a list of {@link AdapterDelegate}s
+     *
+     * @param delegates
+     * @since 4.2.0
+     */
+    public AsyncListDifferDelegationAdapter(@NonNull AsyncDifferConfig differConfig,
+                                            @NonNull AdapterDelegate<List<T>>... delegates) {
+
+        if (differConfig == null) {
+            throw new NullPointerException("AsyncDifferConfig is null");
+        }
+
+        this.differ = new AsyncListDiffer<T>(new AdapterListUpdateCallback(this), differConfig);
+        this.delegatesManager = new AdapterDelegatesManager<List<T>>(delegates);
+    }
 
     @NonNull
     @Override

library/src/test/java/com/hannesdorfmann/adapterdelegates4/AsyncListDifferDelegationAdapterTest.java

@@ -48,7 +48,7 @@ public int getItemCount() {
     @Test
     public void adapterDelegateManagerIsNull() {
         try {
-            AsyncListDifferDelegationAdapter<Object> adapter = new AsyncListDifferDelegationAdapter<Object>(callback, null) {
+            AsyncListDifferDelegationAdapter<Object> adapter = new AsyncListDifferDelegationAdapter<Object>(callback, (AdapterDelegatesManager) null) {
                 @Override
                 public int getItemCount() {
                     return 0;

paging/src/test/java/com/hannesdorfmann/adapterdelegates4/paging/PagedListDelegationAdapterTest.java

@@ -49,7 +49,7 @@ public int getItemCount() {
     @Test
     public void adapterDelegateManagerIsNull() {
         try {
-            AsyncListDifferDelegationAdapter<Object> adapter = new AsyncListDifferDelegationAdapter<Object>(callback, null) {
+            PagedListDelegationAdapter<Object> adapter = new PagedListDelegationAdapter<Object>(null, callback) {
                 @Override
                 public int getItemCount() {
                     return 0;