Allow to display an icon, if a list item does not contain an ImageView.

Author: michael-rapp

library/src/main/java/de/mrapp/android/dialog/adapter/ArrayRecyclerViewAdapter.java

@@ -33,6 +33,7 @@
 import androidx.recyclerview.widget.RecyclerView;
 
 import de.mrapp.android.dialog.R;
+import de.mrapp.android.util.ThemeUtil;
 import de.mrapp.util.Condition;
 
 /**
@@ -163,18 +164,43 @@ private void adaptIcon(@NonNull final ViewHolder holder, final int position) {
 
  if (imageView != null) {
  Context context = imageView.getContext();
- Drawable icon = ActivityCompat.getDrawable(context, iconResourceIds[position]);
-
- if (icon != null) {
- DrawableCompat.setTintList(icon, itemTintList);
- DrawableCompat.setTintMode(icon, itemTintMode);
+ imageView.setImageDrawable(getIcon(context, position));
+ } else {
+ TextView textView = holder.textView;
+
+ if (textView != null) {
+ Context context = textView.getContext();
+ int drawablePadding = ThemeUtil.getDimensionPixelSize(context,
+ android.R.attr.listPreferredItemPaddingLeft);
+ textView.setCompoundDrawablePadding(drawablePadding);
+ textView.setCompoundDrawablesWithIntrinsicBounds(getIcon(context, position),
+ null, null, null);
  }
-
- imageView.setImageDrawable(icon);
  }
  }
  }
 
+ /**
+ * Returns the icon of a list item.
+ *
+ * @param context The context, which should be used, as an instance of the class
+ * {@link Context}. The context may not be null
+ * @param position The position of the list item as an {@link Integer} value
+ * @return The icon of the list item as an instance of the class {@link Drawable} or null, if
+ * the list item does not have an icon
+ */
+ @Nullable
+ private Drawable getIcon(@NonNull final Context context, final int position) {
+ Drawable icon = ActivityCompat.getDrawable(context, iconResourceIds[position]);
+
+ if (icon != null) {
+ DrawableCompat.setTintList(icon, itemTintList);
+ DrawableCompat.setTintMode(icon, itemTintMode);
+ }
+
+ return icon;
+ }
+
  /**
  * Creates a new recycler view adapter, which displays list items that correspond to the texts
  * that are contained in an array.