Update classes using the FrescoHelper and add placeholder to inline attachment/image.

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/RocketChatAvatar.java

@@ -6,7 +6,7 @@ import android.os.Build;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.widget.FrameLayout;
-import chat.rocket.android.widget.helper.FrescoAvatarHelper;
+import chat.rocket.android.widget.helper.FrescoHelper;
 import com.facebook.drawee.view.SimpleDraweeView;
 
 public class RocketChatAvatar extends FrameLayout {
@@ -41,13 +41,8 @@ public class RocketChatAvatar extends FrameLayout {
     draweeView = findViewById(R.id.drawee_avatar);
   }
 
-  public void loadImage(String imageUrl) {
-    FrescoAvatarHelper
-        .loadImage(draweeView, imageUrl);
-  }
-
-  public void showFailureImage() {
-    FrescoAvatarHelper
-        .showFailureImage(draweeView);
+  public void loadImage(String imageUri) {
+    FrescoHelper
+        .loadImage(draweeView, imageUri);
   }
 }
\ No newline at end of file

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/message/RocketChatMessageAttachmentsLayout.java

@@ -14,9 +14,6 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.LinearLayout;
 import android.widget.TextView;
-import com.facebook.drawee.view.SimpleDraweeView;
-
-import java.util.List;
 import chat.rocket.android.widget.AbsoluteUrl;
 import chat.rocket.android.widget.R;
 import chat.rocket.android.widget.helper.FrescoHelper;
@@ -24,6 +21,8 @@ import chat.rocket.core.models.Attachment;
 import chat.rocket.core.models.AttachmentAuthor;
 import chat.rocket.core.models.AttachmentField;
 import chat.rocket.core.models.AttachmentTitle;
+import com.facebook.drawee.view.SimpleDraweeView;
+import java.util.List;
 
 /**
  */
@@ -120,8 +119,8 @@ public class RocketChatMessageAttachmentsLayout extends LinearLayout {
 
     authorBox.setVisibility(VISIBLE);
 
-    FrescoHelper.setupDraweeAndLoadImage(absolutize(author.getIconUrl()),
-        (SimpleDraweeView) attachmentView.findViewById(R.id.author_icon));
+    FrescoHelper
+        .loadImageWithCustomization((SimpleDraweeView) attachmentView.findViewById(R.id.author_icon), absolutize(author.getIconUrl()));
 
     final TextView authorName = (TextView) attachmentView.findViewById(R.id.author_name);
     authorName.setText(author.getName());
@@ -188,7 +187,8 @@ public class RocketChatMessageAttachmentsLayout extends LinearLayout {
       thumbImage.setVisibility(GONE);
     } else {
       thumbImage.setVisibility(VISIBLE);
-      FrescoHelper.setupDraweeAndLoadImage(absolutize(thumbUrl), thumbImage);
+      FrescoHelper
+          .loadImageWithCustomization(thumbImage, absolutize(thumbUrl));
     }
 
     final TextView refText = (TextView) refBox.findViewById(R.id.text);
@@ -253,17 +253,18 @@ public class RocketChatMessageAttachmentsLayout extends LinearLayout {
                          boolean autoloadImage) {
     if (autoloadImage) {
       load.setVisibility(GONE);
-      FrescoHelper.setupDraweeAndLoadImage(url, drawee);
+      FrescoHelper
+          .loadImageWithCustomization(drawee, url);
       return;
     }
 
-    FrescoHelper.setupDrawee(drawee);
     load.setOnClickListener(new OnClickListener() {
       @Override
       public void onClick(View v) {
         load.setVisibility(GONE);
         load.setOnClickListener(null);
-        FrescoHelper.loadImage(url, drawee);
+        FrescoHelper
+            .loadImageWithCustomization(drawee, url);
       }
     });
   }

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/message/RocketChatMessageUrlsLayout.java

@@ -11,12 +11,12 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.LinearLayout;
 import android.widget.TextView;
+import chat.rocket.android.widget.helper.FrescoHelper;
 import com.facebook.drawee.view.SimpleDraweeView;
 
 import java.util.List;
 import java.util.Map;
 import chat.rocket.android.widget.R;
-import chat.rocket.android.widget.helper.FrescoHelper;
 import chat.rocket.android.widget.helper.ImageFormat;
 import chat.rocket.core.models.WebContent;
 import chat.rocket.core.models.WebContentHeaders;
@@ -95,7 +95,8 @@ public class RocketChatMessageUrlsLayout extends LinearLayout {
     if (TextUtils.isEmpty(imageURL)) {
       image.setVisibility(View.GONE);
     } else {
-      FrescoHelper.setupDraweeAndLoadImage(imageURL, image);
+      FrescoHelper
+          .loadImageWithCustomization(image, imageURL);
       image.setVisibility(View.VISIBLE);
     }
 
@@ -143,17 +144,18 @@ public class RocketChatMessageUrlsLayout extends LinearLayout {
                          boolean autoloadImage) {
     if (autoloadImage) {
       load.setVisibility(GONE);
-      FrescoHelper.setupDraweeAndLoadImage(url, drawee);
+      FrescoHelper
+          .loadImageWithCustomization(drawee, url);
       return;
     }
 
-    FrescoHelper.setupDrawee(drawee);
     load.setOnClickListener(new OnClickListener() {
       @Override
       public void onClick(View v) {
         load.setVisibility(GONE);
         load.setOnClickListener(null);
-        FrescoHelper.loadImage(url, drawee);
+        FrescoHelper
+            .loadImageWithCustomization(drawee, url);
       }
     });
   }

rocket-chat-android-widgets/src/main/res/layout/message_inline_attachment.xml

@@ -106,6 +106,7 @@
                     android:layout_width="match_parent"
                     android:layout_height="150dp"
                     android:layout_marginBottom="8dp"
+                    fresco:placeholderImage="@drawable/image_dummy"
                     fresco:actualImageScaleType="fitStart" />
 
             <TextView

rocket-chat-android-widgets/src/main/res/layout/message_inline_image.xml

@@ -10,6 +10,7 @@
             android:id="@+id/message_inline_image"
             android:layout_width="match_parent"
             android:layout_height="150dp"
+            fresco:placeholderImage="@drawable/image_dummy"
             fresco:actualImageScaleType="fitStart" />
 
     <TextView