Added ItemProcessor. Will add to sample and README soon.

library/src/main/java/com/afollestad/materialdialogs/MaterialDialog.java

@@ -26,6 +26,7 @@ import android.widget.ScrollView;
 import android.widget.TextView;
 
 import com.afollestad.materialdialogs.base.DialogBase;
+import com.afollestad.materialdialogs.list.ItemProcessor;
 import com.afollestad.materialdialogs.views.MeasureCallbackLinearLayout;
 import com.afollestad.materialdialogs.views.MeasureCallbackScrollView;
 
@@ -59,10 +60,9 @@ public class MaterialDialog extends DialogBase implements View.OnClickListener,
     private int selectedIndex;
     private Integer[] selectedIndices;
     private boolean mMeasuredScrollView;
-
     private Typeface regularFont;
     private Typeface mediumFont;
-
+    private ItemProcessor mItemProcessor;
 
     MaterialDialog(Builder builder) {
         super(new ContextThemeWrapper(builder.context, builder.theme == Theme.LIGHT ? R.style.Light : R.style.Dark));
@@ -87,6 +87,7 @@ public class MaterialDialog extends DialogBase implements View.OnClickListener,
         this.mediumFont = Typeface.createFromAsset(getContext().getResources().getAssets(), "Roboto-Medium.ttf");
         this.selectedIndex = builder.selectedIndex;
         this.selectedIndices = builder.selectedIndicies;
+        this.mItemProcessor = builder.itemProcessor;
 
         TextView title = (TextView) view.findViewById(R.id.title);
         TextView content = (TextView) view.findViewById(R.id.content);
@@ -205,7 +206,7 @@ public class MaterialDialog extends DialogBase implements View.OnClickListener,
         if (items == null || items.length == 0) return;
         view.findViewById(R.id.content).setVisibility(View.GONE);
 
-        final int dialogFrameMargin = (int)mContext.getResources().getDimension(R.dimen.dialog_frame_margin);
+        final int dialogFrameMargin = (int) mContext.getResources().getDimension(R.dimen.dialog_frame_margin);
         view.findViewById(R.id.customViewScrollParent).setVisibility(View.VISIBLE);
         LinearLayout list = (LinearLayout) view.findViewById(R.id.customViewFrame);
         setMargin(view.findViewById(R.id.titleCustomView), -1, -1, dialogFrameMargin, dialogFrameMargin);
@@ -220,18 +221,28 @@ public class MaterialDialog extends DialogBase implements View.OnClickListener,
                 if (selectedIndex > -1) {
                     ((RadioButton) il.findViewById(R.id.control)).setChecked(selectedIndex == index);
                 }
+                TextView tv = (TextView) il.findViewById(R.id.title);
+                tv.setText(items[index]);
+                tv.setTextColor(itemColor);
             } else if (listCallbackMulti != null) {
                 il = li.inflate(R.layout.dialog_listitem_multichoice, null);
                 if (selectedIndices != null) {
                     if (Arrays.asList(selectedIndices).contains(index))
                         ((CheckBox) il.findViewById(R.id.control)).setChecked(true);
                 }
+                TextView tv = (TextView) il.findViewById(R.id.title);
+                tv.setText(items[index]);
+                tv.setTextColor(itemColor);
             } else {
-                il = li.inflate(R.layout.dialog_listitem, null);
+                if (mItemProcessor != null) {
+                    il = mItemProcessor.inflateItem();
+                } else {
+                    il = li.inflate(R.layout.dialog_listitem, null);
+                    TextView tv = (TextView) il.findViewById(R.id.title);
+                    tv.setText(items[index]);
+                    tv.setTextColor(itemColor);
+                }
             }
-            TextView tv = (TextView) il.findViewById(R.id.title);
-            tv.setText(items[index]);
-            tv.setTextColor(itemColor);
             il.setTag(index + ":" + items[index]);
             il.setOnClickListener(this);
             list.addView(il);
@@ -443,6 +454,7 @@ public class MaterialDialog extends DialogBase implements View.OnClickListener,
         protected float contentLineSpacingMultiplier = 1.0f;
         protected int selectedIndex = -1;
         protected Integer[] selectedIndicies = null;
+        protected ItemProcessor itemProcessor;
 
         public Builder(@NonNull Activity context) {
             this.context = context;
@@ -544,6 +556,15 @@ public class MaterialDialog extends DialogBase implements View.OnClickListener,
             return this;
         }
 
+        /**
+         * Sets an item processor used to inflate and customize list items (NOT including single and
+         * multi choice list items).
+         */
+        public Builder itemProessor(ItemProcessor processor) {
+            this.itemProcessor = processor;
+            return this;
+        }
+
         /**
          * Pass anything below 0 (such as -1) for the selected index to leave all options unselected initially.
          * Otherwise pass the index of an item that will be selected initially.

library/src/main/java/com/afollestad/materialdialogs/list/ItemProcessor.java

@@ -0,0 +1,27 @@
+package com.afollestad.materialdialogs.list;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+
+/**
+ * @author Aidan Follestad (afollestad)
+ */
+public abstract class ItemProcessor {
+
+    private LayoutInflater li;
+
+    public ItemProcessor(Context context) {
+        li = LayoutInflater.from(context);
+    }
+
+    protected abstract int getLayout();
+
+    protected abstract void onViewInflated(View view);
+
+    public final View inflateItem() {
+        View view = li.inflate(getLayout(), null);
+        onViewInflated(view);
+        return view;
+    }
+}

library/src/main/java/com/afollestad/materialdialogs/views/MeasureCallbackScrollView.java

@@ -0,0 +1,40 @@
+package com.afollestad.materialdialogs.views;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.ScrollView;
+
+/**
+ * @author Aidan Follestad (afollestad)
+ */
+public class MeasureCallbackScrollView extends ScrollView {
+
+    public MeasureCallbackScrollView(Context context) {
+        super(context);
+    }
+
+    public MeasureCallbackScrollView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public MeasureCallbackScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    public static interface Callback {
+        void onMeasureScroll(ScrollView view);
+    }
+
+    private Callback mCallback;
+
+    public void setCallback(Callback mCallback) {
+        this.mCallback = mCallback;
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+        if (mCallback != null)
+            mCallback.onMeasureScroll(this);
+    }
+}