Merge branch 'develop' into fix/websocket-drops-keeping-bolts

app/src/main/java/chat/rocket/android/fragment/chatroom/RoomFragment.java

@@ -301,8 +301,8 @@ public class RoomFragment extends AbstractChatRoomFragment implements
       closeSideMenuIfNeeded();
     });
 
-    DrawerLayout drawerLayout = (DrawerLayout) rootView.findViewById(R.id.drawer_layout);
-    SlidingPaneLayout pane = (SlidingPaneLayout) getActivity().findViewById(R.id.sliding_pane);
+    DrawerLayout drawerLayout = rootView.findViewById(R.id.drawer_layout);
+    SlidingPaneLayout pane = getActivity().findViewById(R.id.sliding_pane);
     if (drawerLayout != null && pane != null) {
       compositeDisposable.add(RxDrawerLayout.drawerOpen(drawerLayout, GravityCompat.END)
           .compose(bindToLifecycle())

app/src/main/java/chat/rocket/android/fragment/sidebar/SidebarMainFragment.java

@@ -10,19 +10,7 @@ import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.SearchView;
 import android.view.View;
 import android.widget.CompoundButton;
-import android.widget.ImageView;
 import android.widget.TextView;
-
-import com.jakewharton.rxbinding2.support.v7.widget.RxSearchView;
-import com.jakewharton.rxbinding2.widget.RxCompoundButton;
-
-import io.reactivex.Observable;
-import io.reactivex.android.schedulers.AndroidSchedulers;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
 import chat.rocket.android.BuildConfig;
 import chat.rocket.android.R;
 import chat.rocket.android.RocketChatCache;
@@ -40,19 +28,26 @@ import chat.rocket.android.layouthelper.chatroom.roomlist.FavoriteRoomListHeader
 import chat.rocket.android.layouthelper.chatroom.roomlist.RoomListAdapter;
 import chat.rocket.android.layouthelper.chatroom.roomlist.RoomListHeader;
 import chat.rocket.android.layouthelper.chatroom.roomlist.UnreadRoomListHeader;
+import chat.rocket.android.renderer.UserRenderer;
 import chat.rocket.core.SortDirection;
 import chat.rocket.core.interactors.RoomInteractor;
 import chat.rocket.core.interactors.SessionInteractor;
 import chat.rocket.core.models.Room;
 import chat.rocket.core.models.SpotlightRoom;
 import chat.rocket.core.models.User;
-import chat.rocket.android.renderer.UserRenderer;
 import chat.rocket.persistence.realm.repositories.RealmRoomRepository;
 import chat.rocket.persistence.realm.repositories.RealmServerInfoRepository;
 import chat.rocket.persistence.realm.repositories.RealmSessionRepository;
 import chat.rocket.persistence.realm.repositories.RealmSpotlightRoomRepository;
 import chat.rocket.persistence.realm.repositories.RealmUserRepository;
-import chat.rocket.android.widget.RocketChatAvatar;
+import com.jakewharton.rxbinding2.support.v7.widget.RxSearchView;
+import com.jakewharton.rxbinding2.widget.RxCompoundButton;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
 
 public class SidebarMainFragment extends AbstractFragment implements SidebarMainContract.View {
 
@@ -230,9 +225,9 @@ public class SidebarMainFragment extends AbstractFragment implements SidebarMain
   private void onRenderCurrentUser(User user, RocketChatAbsoluteUrl absoluteUrl) {
     if (user != null && absoluteUrl != null) {
       new UserRenderer(getContext(), user)
-          .avatarInto((RocketChatAvatar) rootView.findViewById(R.id.current_user_avatar), absoluteUrl)
-          .usernameInto((TextView) rootView.findViewById(R.id.current_user_name))
-          .statusColorInto((ImageView) rootView.findViewById(R.id.current_user_status));
+          .avatarInto(rootView.findViewById(R.id.current_user_avatar), absoluteUrl, false)
+          .usernameInto(rootView.findViewById(R.id.current_user_name))
+          .statusColorInto(rootView.findViewById(R.id.current_user_status));
     }
   }
 

app/src/main/java/chat/rocket/android/helper/Avatar.java

 package chat.rocket.android.helper;
 
-import android.content.Context;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.graphics.Typeface;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.support.graphics.drawable.VectorDrawableCompat;
-import chat.rocket.android.R;
 import chat.rocket.android.log.RCLog;
 import chat.rocket.android.widget.AbsoluteUrl;
 import chat.rocket.android.widget.RocketChatAvatar;
-import com.amulyakhare.textdrawable.TextDrawable;
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 
@@ -19,11 +10,6 @@ import java.net.URLEncoder;
  * Helper for rendering user avatar image.
  */
 public class Avatar {
-  private static final int[] COLORS = new int[]{
-      0xFFF44336, 0xFFE91E63, 0xFF9C27B0, 0xFF673AB7, 0xFF3F51B5, 0xFF2196F3,
-      0xFF03A9F4, 0xFF00BCD4, 0xFF009688, 0xFF4CAF50, 0xFF8BC34A, 0xFFCDDC39,
-      0xFFFFC107, 0xFFFF9800, 0xFFFF5722, 0xFF795548, 0xFF9E9E9E, 0xFF607D8B
-  };
   private final AbsoluteUrl absoluteUrl;
   private final String username;
 
@@ -32,48 +18,11 @@ public class Avatar {
     this.username = username;
   }
 
-  private static int getColorForUser(String username) {
-    return COLORS[username.length() % COLORS.length];
-  }
-
-  private static String getInitialsForUser(String username) {
-    String name = username
-        .replaceAll("[^A-Za-z0-9]", ".")
-        .replaceAll("\\.+", ".")
-        .replaceAll("(^\\.)|(\\.$)", "");
-    String[] initials = name.split("\\.");
-    if (initials.length >= 2) {
-      return (firstChar(initials[0]) + firstChar(initials[initials.length - 1])).toUpperCase();
-    } else {
-      String name2 = name.replaceAll("[^A-Za-z0-9]", "");
-      return (name2.length() < 2) ? name2 : name2.substring(0, 2).toUpperCase();
-    }
-  }
-
-  private static String firstChar(String str) {
-    return TextUtils.isEmpty(str) ? "" : str.substring(0, 1);
-  }
-
-  private static Bitmap drawableToBitmap(Drawable drawable, int size) {
-    if (drawable instanceof BitmapDrawable) {
-      BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
-      if (bitmapDrawable.getBitmap() != null) {
-        return bitmapDrawable.getBitmap();
-      }
-    }
-
-    Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
-    Canvas canvas = new Canvas(bitmap);
-    drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
-    drawable.draw(canvas);
-    return bitmap;
-  }
-
   private String getImageUrl() {
     //from Rocket.Chat:packages/rocketchat-ui/lib/avatar.coffee
     //REMARK! this is often SVG image! (see: Rocket.Chat:server/startup/avatar.coffee)
     try {
-      final String avatarUrl = "/avatar/" + URLEncoder.encode(username, "UTF-8") + ".jpg";
+      final String avatarUrl = "/avatar/" + URLEncoder.encode(username, "UTF-8");
       if (absoluteUrl == null) {
         return avatarUrl;
       }
@@ -87,31 +36,11 @@ public class Avatar {
   /**
    * render avatar into RocketChatAvatar.
    */
-  public void into(final RocketChatAvatar rocketChatAvatar) {
-    final Context context = rocketChatAvatar.getContext();
-    rocketChatAvatar.loadImage(getImageUrl(), getTextDrawable(context));
-  }
-
-  /**
-   * render error avatar into RocketChatAvatar.
-   */
-  public void errorInto(final RocketChatAvatar rocketChatAvatar) {
-    final Context context = rocketChatAvatar.getContext();
-    rocketChatAvatar.loadImage(VectorDrawableCompat.create(context.getResources(), R.drawable.ic_error_outline_black_24dp, null));
-  }
-
-  public Drawable getTextDrawable(Context context) {
-    if (username == null) {
-      return null;
+  public void into(final RocketChatAvatar rocketChatAvatar, boolean showFailureImage) {
+    if (showFailureImage) {
+      rocketChatAvatar.showFailureImage();
+    } else {
+      rocketChatAvatar.loadImage(getImageUrl());
     }
-
-    int round = (int) (4 * context.getResources().getDisplayMetrics().density);
-
-    return TextDrawable.builder()
-        .beginConfig()
-        .useFont(Typeface.SANS_SERIF)
-        .endConfig()
-        .buildRoundRect(getInitialsForUser(username), getColorForUser(username), round);
   }
-
-}
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/layouthelper/chatroom/AbstractMessageViewHolder.java

@@ -25,13 +25,13 @@ public abstract class AbstractMessageViewHolder extends ModelViewHolder<PairedMe
    */
   public AbstractMessageViewHolder(View itemView, AbsoluteUrl absoluteUrl) {
     super(itemView);
-    avatar = (RocketChatAvatar) itemView.findViewById(R.id.user_avatar);
-    username = (TextView) itemView.findViewById(R.id.username);
-    subUsername = (TextView) itemView.findViewById(R.id.sub_username);
-    timestamp = (TextView) itemView.findViewById(R.id.timestamp);
+    avatar = itemView.findViewById(R.id.user_avatar);
+    username = itemView.findViewById(R.id.username);
+    subUsername = itemView.findViewById(R.id.sub_username);
+    timestamp = itemView.findViewById(R.id.timestamp);
     userAndTimeContainer = itemView.findViewById(R.id.user_and_timestamp_container);
     newDayContainer = itemView.findViewById(R.id.newday_container);
-    newDayText = (TextView) itemView.findViewById(R.id.newday_text);
+    newDayText = itemView.findViewById(R.id.newday_text);
     this.absoluteUrl = absoluteUrl;
   }
 
@@ -39,11 +39,11 @@ public abstract class AbstractMessageViewHolder extends ModelViewHolder<PairedMe
    * bind the view model.
    */
   public final void bind(PairedMessage pairedMessage, boolean autoloadImages) {
-    if (pairedMessage.target != null) {
-      if (pairedMessage.target.getSyncState() != SyncState.SYNCED)
-        itemView.setAlpha(0.6f);
-      else
-        itemView.setAlpha(1.0f);
+    if (pairedMessage.target.getSyncState() != SyncState.SYNCED) {
+      itemView.setAlpha(0.6f);
+    }
+    else {
+      itemView.setAlpha(1.0f);
     }
 
     bindMessage(pairedMessage, autoloadImages);

app/src/main/java/chat/rocket/android/layouthelper/chatroom/MessageNormalViewHolder.java

@@ -21,9 +21,9 @@ public class MessageNormalViewHolder extends AbstractMessageViewHolder {
    */
   public MessageNormalViewHolder(View itemView, AbsoluteUrl absoluteUrl) {
     super(itemView, absoluteUrl);
-    body = (RocketChatMessageLayout) itemView.findViewById(R.id.message_body);
-    urls = (RocketChatMessageUrlsLayout) itemView.findViewById(R.id.message_urls);
-    attachments = (RocketChatMessageAttachmentsLayout) itemView.findViewById(R.id.message_attachments);
+    body = itemView.findViewById(R.id.message_body);
+    urls = itemView.findViewById(R.id.message_urls);
+    attachments = itemView.findViewById(R.id.message_attachments);
   }
 
   @Override

app/src/main/java/chat/rocket/android/layouthelper/chatroom/MessageSystemViewHolder.java

@@ -18,7 +18,7 @@ public class MessageSystemViewHolder extends AbstractMessageViewHolder {
    */
   public MessageSystemViewHolder(View itemView, AbsoluteUrl absoluteUrl) {
     super(itemView, absoluteUrl);
-    body = (TextView) itemView.findViewById(R.id.message_body);
+    body = itemView.findViewById(R.id.message_body);
   }
 
   @Override

app/src/main/java/chat/rocket/android/layouthelper/chatroom/dialog/RoomUserAdapter.java

@@ -58,12 +58,12 @@ public class RoomUserAdapter extends RecyclerView.Adapter<RoomUserViewHolder> {
           .setUtcOffset(0)
           .build();
       new UserRenderer(context, user)
-          .avatarInto(holder.avatar, absoluteUrl)
+          .avatarInto(holder.avatar, absoluteUrl, false)
           .usernameInto(holder.username);
     } else {
       new UserRenderer(context, realmUser.asUser())
           .statusColorInto(holder.status)
-          .avatarInto(holder.avatar, absoluteUrl)
+          .avatarInto(holder.avatar, absoluteUrl, false)
           .usernameInto(holder.username);
     }
   }

app/src/main/java/chat/rocket/android/layouthelper/sidebar/dialog/SuggestUserAdapter.java

@@ -28,7 +28,7 @@ public class SuggestUserAdapter extends RealmAutoCompleteAdapter<RealmUser> {
   protected void onBindItemView(View itemView, RealmUser user) {
     new UserRenderer(itemView.getContext(), user.asUser())
         .statusColorInto((ImageView) itemView.findViewById(R.id.room_user_status))
-        .avatarInto((RocketChatAvatar) itemView.findViewById(R.id.room_user_avatar), absoluteUrl);
+        .avatarInto((RocketChatAvatar) itemView.findViewById(R.id.room_user_avatar), absoluteUrl, false);
   }
 
   @Override

app/src/main/java/chat/rocket/android/renderer/MessageRenderer.java

@@ -4,7 +4,6 @@ import android.content.Context;
 import android.view.View;
 import android.widget.TextView;
 import chat.rocket.android.R;
-import chat.rocket.android.helper.Avatar;
 import chat.rocket.android.helper.DateTime;
 import chat.rocket.android.helper.TextUtils;
 import chat.rocket.android.widget.AbsoluteUrl;
@@ -15,7 +14,6 @@ import chat.rocket.android.widget.message.RocketChatMessageUrlsLayout;
 import chat.rocket.core.SyncState;
 import chat.rocket.core.models.Attachment;
 import chat.rocket.core.models.Message;
-import chat.rocket.core.models.User;
 import chat.rocket.core.models.WebContent;
 import java.util.List;
 
@@ -41,16 +39,18 @@ public class MessageRenderer extends AbstractRenderer<Message> {
       return this;
     }
 
-    if (object.getSyncState() == SyncState.FAILED)
-//      rocketChatAvatar.loadImage(VectorDrawableCompat.create(context.getResources(), R.drawable.ic_error_outline_black_24dp, null));
-      userRenderer.errorAvatarInto(rocketChatAvatar);
-    else if (TextUtils.isEmpty(object.getAvatar()))
-      userRenderer.avatarInto(rocketChatAvatar, absoluteUrl);
-    else {
-      final User user = object.getUser();
-      setAvatarInto(object.getAvatar(), absoluteUrl, user == null ? null : user.getUsername(), rocketChatAvatar);
+    switch (object.getSyncState()){
+      case SyncState.FAILED:
+        userRenderer.avatarInto(rocketChatAvatar, absoluteUrl, true);
+        break;
+      default:
+        if (TextUtils.isEmpty(object.getAvatar())) {
+          userRenderer.avatarInto(rocketChatAvatar, absoluteUrl, false);
+        } else {
+          rocketChatAvatar.loadImage(object.getAvatar());
+        }
+        break;
     }
-
     return this;
   }
 
@@ -91,7 +91,6 @@ public class MessageRenderer extends AbstractRenderer<Message> {
         textView.setText(DateTime.fromEpocMs(object.getTimestamp(), DateTime.Format.TIME));
         break;
     }
-
     return this;
   }
 
@@ -104,7 +103,6 @@ public class MessageRenderer extends AbstractRenderer<Message> {
     }
 
     rocketChatMessageLayout.setText(object.getMessage());
-
     return this;
   }
 
@@ -123,15 +121,13 @@ public class MessageRenderer extends AbstractRenderer<Message> {
       urlsLayout.setVisibility(View.VISIBLE);
       urlsLayout.setUrls(webContents, autoloadImages);
     }
-
     return this;
   }
 
   /**
    * show urls in RocketChatMessageUrlsLayout.
    */
-  public MessageRenderer attachmentsInto(RocketChatMessageAttachmentsLayout attachmentsLayout,
-                                         AbsoluteUrl absoluteUrl) {
+  public MessageRenderer attachmentsInto(RocketChatMessageAttachmentsLayout attachmentsLayout, AbsoluteUrl absoluteUrl) {
     if (!shouldHandle(attachmentsLayout)) {
       return this;
     }
@@ -144,14 +140,9 @@ public class MessageRenderer extends AbstractRenderer<Message> {
       attachmentsLayout.setAbsoluteUrl(absoluteUrl);
       attachmentsLayout.setAttachments(attachments, autoloadImages);
     }
-
     return this;
   }
 
-  private void setAvatarInto(String avatar, AbsoluteUrl absoluteUrl, String username, RocketChatAvatar imageView) {
-    imageView.loadImage(avatar, new Avatar(absoluteUrl, username).getTextDrawable(context));
-  }
-
   private void aliasAndUsernameInto(TextView aliasTextView, TextView usernameTextView) {
     if (shouldHandle(aliasTextView)) {
       aliasTextView.setText(object.getAlias());
@@ -167,4 +158,4 @@ public class MessageRenderer extends AbstractRenderer<Message> {
     }
   }
 
-}
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/renderer/UserRenderer.java

@@ -21,27 +21,14 @@ public class UserRenderer extends AbstractRenderer<User> {
   /**
    * show Avatar image
    */
-  public UserRenderer avatarInto(RocketChatAvatar rocketChatAvatar, AbsoluteUrl absoluteUrl) {
+  public UserRenderer avatarInto(RocketChatAvatar rocketChatAvatar, AbsoluteUrl absoluteUrl, boolean showFailureImage) {
     if (!shouldHandle(rocketChatAvatar)) {
       return this;
     }
 
     if (!TextUtils.isEmpty(object.getUsername())) {
-      new Avatar(absoluteUrl, object.getUsername()).into(rocketChatAvatar);
-    }
-    return this;
-  }
-
-  /**
-   * show Avatar error image
-   */
-  public UserRenderer errorAvatarInto(RocketChatAvatar rocketChatAvatar) {
-    if (!shouldHandle(rocketChatAvatar)) {
-      return this;
-    }
-
-    if (!TextUtils.isEmpty(object.getUsername())) {
-      new Avatar(null, object.getUsername()).errorInto(rocketChatAvatar);
+      new Avatar(absoluteUrl, object.getUsername())
+          .into(rocketChatAvatar, showFailureImage);
     }
     return this;
   }

app/src/main/res/values/strings.xml

@@ -16,8 +16,8 @@
     <string name="users_of_room_title">Members List</string>
     <string name="fmt_room_user_count">Total: %,d users</string>
     <string name="sending">Sending…</string>
-    <string name="not_synced">Not synced…</string>
-    <string name="failed_to_sync">Failed to sync…</string>
+    <string name="not_synced">Not synced</string>
+    <string name="failed_to_sync">Failed to sync</string>
     <string name="resend">Resend</string>
     <string name="discard">Discard</string>
 

build.gradle

@@ -21,6 +21,7 @@ ext {
     targetSdkVersion = 26
     buildToolsVersion = "26.0.0"
     supportLibraryVersion = "25.4.0"
+    kotlinVersion = "1.1.3"
 }
 
 task clean(type: Delete) {

rocket-chat-android-widgets/build.gradle

 apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
 
 buildscript {
     repositories {
         jcenter()
+        mavenCentral()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$rootProject.ext.kotlinVersion"
     }
 }
 
@@ -44,6 +47,8 @@ dependencies {
     compile "com.android.support:support-v13:$rootProject.ext.supportLibraryVersion"
     compile "com.android.support:design:$rootProject.ext.supportLibraryVersion"
 
+    compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$rootProject.ext.kotlinVersion"
+
     compile 'org.nibor.autolink:autolink:0.6.0'
 
     compile 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'

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

@@ -2,15 +2,11 @@ package chat.rocket.android.widget;
 
 import android.annotation.TargetApi;
 import android.content.Context;
-import android.graphics.drawable.Drawable;
-import android.net.Uri;
 import android.os.Build;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.widget.FrameLayout;
-import com.facebook.drawee.backends.pipeline.Fresco;
-import com.facebook.drawee.generic.GenericDraweeHierarchy;
-import com.facebook.drawee.interfaces.DraweeController;
+import chat.rocket.android.widget.helper.FrescoAvatarHelper;
 import com.facebook.drawee.view.SimpleDraweeView;
 
 public class RocketChatAvatar extends FrameLayout {
@@ -39,36 +35,19 @@ public class RocketChatAvatar extends FrameLayout {
   }
 
   private void initialize(Context context, AttributeSet attrs) {
-    LayoutInflater.from(context)
+    LayoutInflater
+        .from(context)
         .inflate(R.layout.message_avatar, this, true);
-
-    draweeView = (SimpleDraweeView) findViewById(R.id.drawee_avatar);
+    draweeView = findViewById(R.id.drawee_avatar);
   }
 
-  public void loadImage(Drawable drawable) {
-//    final GenericDraweeHierarchy hierarchy = draweeView.getHierarchy();
-//    hierarchy.setImage(drawable, 100, true); // Is there a better way?
-
-    final GenericDraweeHierarchy hierarchy = draweeView.getHierarchy();
-    hierarchy.setPlaceholderImage(drawable);
-    hierarchy.setFailureImage(drawable);
-
-    final DraweeController controller = Fresco.newDraweeControllerBuilder()
-        .setAutoPlayAnimations(true)
-        .build();
-    draweeView.setController(controller);
-
+  public void loadImage(String imageUrl) {
+    FrescoAvatarHelper
+        .loadImage(draweeView, imageUrl);
   }
 
-  public void loadImage(String url, Drawable placeholder) {
-    final GenericDraweeHierarchy hierarchy = draweeView.getHierarchy();
-    hierarchy.setPlaceholderImage(placeholder);
-    hierarchy.setFailureImage(placeholder);
-
-    final DraweeController controller = Fresco.newDraweeControllerBuilder()
-        .setUri(Uri.parse(url))
-        .setAutoPlayAnimations(true)
-        .build();
-    draweeView.setController(controller);
+  public void showFailureImage() {
+    FrescoAvatarHelper
+        .showFailureImage(draweeView);
   }
-}
+}
\ No newline at end of file

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

 package chat.rocket.android.widget;
 
 import android.content.Context;
-
+import chat.rocket.android.widget.fresco.CustomImageFormatConfigurator;
 import com.facebook.drawee.backends.pipeline.DraweeConfig;
 import com.facebook.drawee.backends.pipeline.Fresco;
 import com.facebook.imagepipeline.backends.okhttp3.OkHttpImagePipelineConfigFactory;
 import com.facebook.imagepipeline.core.ImagePipelineConfig;
-
-import chat.rocket.android.widget.fresco.ImageFormatConfigurator;
 import okhttp3.OkHttpClient;
 
 public class RocketChatWidgets {
@@ -16,14 +14,12 @@ public class RocketChatWidgets {
     ImagePipelineConfig config = OkHttpImagePipelineConfigFactory
         .newBuilder(context, okHttpClient)
         .setDownsampleEnabled(true)
-        .setImageDecoderConfig(ImageFormatConfigurator.createImageDecoderConfig())
+        .setImageDecoderConfig(CustomImageFormatConfigurator.createImageDecoderConfig())
         .build();
 
     DraweeConfig.Builder draweeConfigBuilder = DraweeConfig.newBuilder();
-    ImageFormatConfigurator.addCustomDrawableFactories(draweeConfigBuilder);
+    CustomImageFormatConfigurator.addCustomDrawableFactories(draweeConfigBuilder);
 
     Fresco.initialize(context, config, draweeConfigBuilder.build());
-
-    Fresco.getImagePipeline().clearCaches();
   }
-}
+}
\ No newline at end of file

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/fresco/ColorImage.java

+package chat.rocket.android.widget.fresco;
+
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.support.annotation.ColorInt;
+import android.support.v4.graphics.ColorUtils;
+import com.facebook.common.internal.ByteStreams;
+import com.facebook.drawee.backends.pipeline.DrawableFactory;
+import com.facebook.imageformat.ImageFormat;
+import com.facebook.imageformat.ImageFormatCheckerUtils;
+import com.facebook.imagepipeline.common.ImageDecodeOptions;
+import com.facebook.imagepipeline.decoder.ImageDecoder;
+import com.facebook.imagepipeline.image.CloseableImage;
+import com.facebook.imagepipeline.image.EncodedImage;
+import com.facebook.imagepipeline.image.QualityInfo;
+import java.io.IOException;
+import javax.annotation.Nullable;
+
+/**
+ * Simple decoder that can decode color images that have the following format:
+ *
+ *     <color>#FF5722</color>
+ *
+ * See: https://github.com/facebook/fresco/blob/master/samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/imageformat/color/ColorImage.java
+ */
+class ColorImage {
+  /**
+   * XML color tag that our colors must start with.
+   */
+  public static final String COLOR_TAG = "<color>";
+
+  /**
+   * Custom {@link ImageFormat} for color images.
+   */
+  public static final ImageFormat IMAGE_FORMAT_COLOR =
+      new ImageFormat("IMAGE_FORMAT_COLOR", "color");
+
+  /**
+   * Create a new image format checker for {@link #IMAGE_FORMAT_COLOR}.
+   * @return the image format checker
+   */
+  public static ImageFormat.FormatChecker createFormatChecker() {
+    return new ColorFormatChecker();
+  }
+
+  /**
+   * Create a new decoder that can decode {@link #IMAGE_FORMAT_COLOR} images.
+   * @return the decoder
+   */
+  public static ImageDecoder createDecoder() {
+    return new ColorDecoder();
+  }
+
+  public static ColorDrawableFactory createDrawableFactory() {
+    return new ColorDrawableFactory();
+  }
+
+  /**
+   * Custom color format checker that verifies that the header of the file
+   * corresponds to our {@link #COLOR_TAG}.
+   */
+  public static class ColorFormatChecker implements ImageFormat.FormatChecker {
+
+    public static final byte[] HEADER = ImageFormatCheckerUtils.asciiBytes(COLOR_TAG);
+
+    @Override
+    public int getHeaderSize() {
+      return HEADER.length;
+    }
+
+    @Nullable
+    @Override
+    public ImageFormat determineFormat(byte[] headerBytes, int headerSize) {
+      if (headerSize < getHeaderSize()) {
+        return null;
+      }
+      if (ImageFormatCheckerUtils.startsWithPattern(headerBytes, HEADER)) {
+        return IMAGE_FORMAT_COLOR;
+      }
+      return null;
+    }
+  }
+
+  /**
+   * Custom closeable color image that holds a single color int value.
+   */
+  public static class CloseableColorImage extends CloseableImage {
+
+    @ColorInt
+    private final int mColor;
+
+    private boolean mClosed = false;
+
+    public CloseableColorImage(int color) {
+      mColor = color;
+    }
+
+    @ColorInt
+    public int getColor() {
+      return mColor;
+    }
+
+    @Override
+    public int getSizeInBytes() {
+      return 0;
+    }
+
+    @Override
+    public void close() {
+      mClosed = true;
+    }
+
+    @Override
+    public boolean isClosed() {
+      return mClosed;
+    }
+
+    @Override
+    public int getWidth() {
+      return 0;
+    }
+
+    @Override
+    public int getHeight() {
+      return 0;
+    }
+  }
+
+  /**
+   * Decodes a color XML tag: <color>#rrggbb</color>
+   */
+  public static class ColorDecoder implements ImageDecoder {
+
+    @Override
+    public CloseableImage decode(
+        EncodedImage encodedImage,
+        int length,
+        QualityInfo qualityInfo,
+        ImageDecodeOptions options) {
+      try {
+        // Read the file as a string
+        String text = new String(ByteStreams.toByteArray(encodedImage.getInputStream()));
+
+        // Check if the string matches "<color>#"
+        if (!text.startsWith(COLOR_TAG + "#")) {
+          return null;
+        }
+
+        // Parse the int value between # and <
+        int startIndex = COLOR_TAG.length() + 1;
+        int endIndex = text.lastIndexOf('<');
+        int color = Integer.parseInt(text.substring(startIndex, endIndex), 16);
+
+        // Add the alpha component so that we actually see the color
+        color = ColorUtils.setAlphaComponent(color, 255);
+
+        // Return the CloseableImage
+        return new CloseableColorImage(color);
+      } catch (IOException e) {
+        e.printStackTrace();
+      }
+      // Return nothing if an error occurred
+      return null;
+    }
+  }
+
+  /**
+   * Color drawable factory that is able to render a {@link CloseableColorImage} by creating
+   * a new {@link ColorDrawable} for the given color.
+   */
+  public static class ColorDrawableFactory implements DrawableFactory {
+
+    @Override
+    public boolean supportsImageType(CloseableImage image) {
+      // We can only handle CloseableColorImages
+      return image instanceof CloseableColorImage;
+    }
+
+    @Nullable
+    @Override
+    public Drawable createDrawable(CloseableImage image) {
+      // Just return a simple ColorDrawable with the given color value
+      return new ColorDrawable(((CloseableColorImage)image).getColor());
+    }
+  }
+
+}

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/fresco/ImageFormatConfigurator.java → rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/fresco/CustomImageFormatConfigurator.java

@@ -5,23 +5,20 @@ import com.facebook.drawee.backends.pipeline.DraweeConfig;
 import com.facebook.imagepipeline.decoder.ImageDecoderConfig;
 
 /**
- * Based on https://github.com/facebook/fresco/blob/master/samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/CustomImageFormatConfigurator.java
+ * Helper class to add custom decoders and drawable factories.
+ * See: https://github.com/facebook/fresco/blob/master/samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/CustomImageFormatConfigurator.java
  */
-public class ImageFormatConfigurator {
+public class CustomImageFormatConfigurator {
 
   @Nullable
   public static ImageDecoderConfig createImageDecoderConfig() {
     ImageDecoderConfig.Builder config = ImageDecoderConfig.newBuilder();
-
-    config.addDecodingCapability(
-        SvgDecoderConfig.SVG_FORMAT,
-        new SvgDecoderConfig.SvgFormatChecker(),
-        new SvgDecoderConfig.SvgDecoder());
-
+    config.addDecodingCapability(SvgDecoder.SVG_FORMAT, new SvgDecoder.SvgFormatChecker(), new SvgDecoder.Decoder());
     return config.build();
   }
 
   public static void addCustomDrawableFactories(DraweeConfig.Builder draweeConfigBuilder) {
-    draweeConfigBuilder.addCustomDrawableFactory(new SvgDecoderConfig.SvgDrawableFactory());
+    draweeConfigBuilder.addCustomDrawableFactory(ColorImage.createDrawableFactory());
+    draweeConfigBuilder.addCustomDrawableFactory(new SvgDecoder.SvgDrawableFactory());
   }
-}
+}
\ No newline at end of file

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/fresco/SvgDecoderConfig.java → rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/fresco/SvgDecoder.java

@@ -3,8 +3,8 @@ package chat.rocket.android.widget.fresco;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.PictureDrawable;
-import android.support.annotation.Nullable;
-
+import com.caverock.androidsvg.SVG;
+import com.caverock.androidsvg.SVGParseException;
 import com.facebook.drawee.backends.pipeline.DrawableFactory;
 import com.facebook.imageformat.ImageFormat;
 import com.facebook.imageformat.ImageFormatCheckerUtils;
@@ -13,19 +13,18 @@ import com.facebook.imagepipeline.decoder.ImageDecoder;
 import com.facebook.imagepipeline.image.CloseableImage;
 import com.facebook.imagepipeline.image.EncodedImage;
 import com.facebook.imagepipeline.image.QualityInfo;
-
-import com.caverock.androidsvg.SVG;
-import com.caverock.androidsvg.SVGParseException;
+import javax.annotation.Nullable;
 
 /**
- * Based on https://github.com/facebook/fresco/blob/master/samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/imageformat/svg/SvgDecoderExample.java
+ * SVG example that defines all classes required to decode and render SVG images.
+ * See: https://github.com/facebook/fresco/blob/master/samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/imageformat/svg/SvgDecoderExample.java
  */
-public class SvgDecoderConfig {
+public class SvgDecoder {
 
   public static final ImageFormat SVG_FORMAT = new ImageFormat("SVG_FORMAT", "svg");
 
   // We do not include the closing ">" since there can be additional information
-  private static final String HEADER_TAG = "<svg";
+  private static final String HEADER_TAG = "<?xml";
 
   public static class SvgFormatChecker implements ImageFormat.FormatChecker {
 
@@ -92,7 +91,7 @@ public class SvgDecoderConfig {
   /**
    * Decodes a SVG_FORMAT image
    */
-  public static class SvgDecoder implements ImageDecoder {
+  public static class Decoder implements ImageDecoder {
 
     @Override
     public CloseableImage decode(
@@ -142,4 +141,4 @@ public class SvgDecoderConfig {
       setPicture(mSvg.renderToPicture(bounds.width(), bounds.height()));
     }
   }
-}
+}
\ No newline at end of file

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/helper/FrescoAvatarHelper.kt

+package chat.rocket.android.widget.helper
+
+import android.net.Uri
+import android.support.graphics.drawable.VectorDrawableCompat
+import chat.rocket.android.widget.R
+import com.facebook.drawee.backends.pipeline.Fresco
+import com.facebook.drawee.drawable.ProgressBarDrawable
+import com.facebook.drawee.view.SimpleDraweeView
+
+class FrescoAvatarHelper {
+
+    companion object {
+
+        @JvmStatic fun loadImage(draweeView: SimpleDraweeView, imageUrl: String) {
+            val hierarchy = draweeView.hierarchy
+            hierarchy.setPlaceholderImage(VectorDrawableCompat.create(draweeView.resources, R.drawable.ic_avatar_placeholder, null))
+            hierarchy.setFailureImage(VectorDrawableCompat.create(draweeView.resources, R.drawable.ic_avatar_failure, null))
+            hierarchy.setProgressBarImage(ProgressBarDrawable())
+
+            val controller = Fresco.newDraweeControllerBuilder()
+                    .setUri(Uri.parse(imageUrl))
+                    .setOldController(draweeView.controller)
+                    .build()
+
+            draweeView.controller = controller
+        }
+
+        @JvmStatic fun showFailureImage(draweeView: SimpleDraweeView) {
+            val hierarchy = draweeView.hierarchy
+            hierarchy.setPlaceholderImage(VectorDrawableCompat.create(draweeView.resources, R.drawable.ic_avatar_failure, null))
+            hierarchy.setFailureImage(VectorDrawableCompat.create(draweeView.resources, R.drawable.ic_avatar_failure, null))
+
+            val controller = Fresco.newDraweeControllerBuilder()
+                    .setAutoPlayAnimations(true)
+                    .build()
+
+            draweeView.controller = controller
+        }
+    }
+}
\ No newline at end of file

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/helper/FrescoHelper.java

@@ -22,10 +22,8 @@ public class FrescoHelper {
 
   public static void setupDrawee(SimpleDraweeView draweeView) {
     final GenericDraweeHierarchy hierarchy = draweeView.getHierarchy();
-    hierarchy.setPlaceholderImage(
-        VectorDrawableCompat.create(draweeView.getResources(), R.drawable.image_dummy, null));
-    hierarchy.setFailureImage(
-        VectorDrawableCompat.create(draweeView.getResources(), R.drawable.image_error, null));
+    hierarchy.setPlaceholderImage(VectorDrawableCompat.create(draweeView.getResources(), R.drawable.image_dummy, null));
+    hierarchy.setFailureImage(VectorDrawableCompat.create(draweeView.getResources(), R.drawable.image_error, null));
     hierarchy.setProgressBarImage(new ProgressBarDrawable());
   }
 
@@ -37,4 +35,4 @@ public class FrescoHelper {
         .build();
     draweeView.setController(controller);
   }
-}
+}
\ No newline at end of file

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/message/autocomplete/user/UserViewHolder.java

 package chat.rocket.android.widget.message.autocomplete.user;
 
-import android.content.Context;
-import android.graphics.Typeface;
-import android.graphics.drawable.Drawable;
-import android.text.TextUtils;
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;
-
-import com.amulyakhare.textdrawable.TextDrawable;
-
-import java.io.UnsupportedEncodingException;
-import java.net.URLEncoder;
-
 import chat.rocket.android.widget.AbsoluteUrl;
 import chat.rocket.android.widget.R;
 import chat.rocket.android.widget.RocketChatAvatar;
 import chat.rocket.android.widget.message.autocomplete.AutocompleteViewHolder;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
 
 public class UserViewHolder extends AutocompleteViewHolder<UserItem> {
 
-  private static final int[] COLORS = new int[]{
-      0xFFF44336, 0xFFE91E63, 0xFF9C27B0, 0xFF673AB7, 0xFF3F51B5, 0xFF2196F3,
-      0xFF03A9F4, 0xFF00BCD4, 0xFF009688, 0xFF4CAF50, 0xFF8BC34A, 0xFFCDDC39,
-      0xFFFFC107, 0xFFFF9800, 0xFFFF5722, 0xFF795548, 0xFF9E9E9E, 0xFF607D8B
-  };
-
   private final TextView titleTextView;
   private final RocketChatAvatar avatar;
   private final ImageView status;
 
-  public UserViewHolder(View itemView,
-                        final AutocompleteViewHolder.OnClickListener<UserItem> onClickListener) {
+  public UserViewHolder(View itemView, final AutocompleteViewHolder.OnClickListener<UserItem> onClickListener) {
     super(itemView);
 
-    titleTextView = (TextView) itemView.findViewById(R.id.title);
-    avatar = (RocketChatAvatar) itemView.findViewById(R.id.avatar);
-    status = (ImageView) itemView.findViewById(R.id.status);
+    titleTextView = itemView.findViewById(R.id.title);
+    avatar = itemView.findViewById(R.id.avatar);
+    status = itemView.findViewById(R.id.status);
 
     itemView.setOnClickListener(new View.OnClickListener() {
       @Override
@@ -59,10 +44,7 @@ public class UserViewHolder extends AutocompleteViewHolder<UserItem> {
     }
 
     if (avatar != null) {
-      avatar.loadImage(
-          getImageUrl(suggestion, userItem.getAbsoluteUrl()),
-          getTextDrawable(itemView.getContext(), suggestion)
-      );
+      avatar.loadImage(getImageUrl(suggestion, userItem.getAbsoluteUrl()));
     }
 
     if (status != null) {
@@ -81,7 +63,7 @@ public class UserViewHolder extends AutocompleteViewHolder<UserItem> {
     //from Rocket.Chat:packages/rocketchat-ui/lib/avatar.coffee
     //REMARK! this is often SVG image! (see: Rocket.Chat:server/startup/avatar.coffee)
     try {
-      final String avatarUrl = "/avatar/" + URLEncoder.encode(username, "UTF-8") + ".jpg";
+      final String avatarUrl = "/avatar/" + URLEncoder.encode(username, "UTF-8");
       //  TODO why absoluteUrl is nullable? By allowing that, the app tries to load non-existing images
       if (absoluteUrl == null) {
         return avatarUrl;
@@ -91,40 +73,4 @@ public class UserViewHolder extends AutocompleteViewHolder<UserItem> {
       return null;
     }
   }
-
-  private Drawable getTextDrawable(Context context, String username) {
+}
\ No newline at end of file
-    if (username == null) {
-      return null;
-    }
-
-    int round = (int) (4 * context.getResources().getDisplayMetrics().density);
-
-    return TextDrawable.builder()
-        .beginConfig()
-        .useFont(Typeface.SANS_SERIF)
-        .endConfig()
-        .buildRoundRect(getInitialsForUser(username), getColorForUser(username), round);
-  }
-
-  private int getColorForUser(String username) {
-    return COLORS[username.length() % COLORS.length];
-  }
-
-  private String getInitialsForUser(String username) {
-    String name = username
-        .replaceAll("[^A-Za-z0-9]", ".")
-        .replaceAll("\\.+", ".")
-        .replaceAll("(^\\.)|(\\.$)", "");
-    String[] initials = name.split("\\.");
-    if (initials.length >= 2) {
-      return (firstChar(initials[0]) + firstChar(initials[initials.length - 1])).toUpperCase();
-    } else {
-      String name2 = name.replaceAll("[^A-Za-z0-9]", "");
-      return (name2.length() < 2) ? name2 : name2.substring(0, 2).toUpperCase();
-    }
-  }
-
-  private static String firstChar(String str) {
-    return TextUtils.isEmpty(str) ? "" : str.substring(0, 1);
-  }
-}

rocket-chat-android-widgets/src/main/res/drawable/ic_avatar_failure.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportHeight="24.0"
+        android:viewportWidth="24.0">
+    <path
+        android:fillColor="#C2D1DA"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM13,17h-2v-2h2v2zM13,13h-2L11,7h2v6z"/>
+</vector>
\ No newline at end of file

rocket-chat-android-widgets/src/main/res/drawable/ic_avatar_placeholder.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:pathData="M3,0L21,0A3,3 0,0 1,24 3L24,21A3,3 0,0 1,21 24L3,24A3,3 0,0 1,0 21L0,3A3,3 0,0 1,3 0z"
+        android:fillColor="#C2D1DA"/>
+    <path
+        android:pathData="M11.594,11.869C12.928,11.869 14.01,10.555 14.01,8.934C14.01,7.314 13.655,6 11.594,6C9.534,6 9.178,7.314 9.178,8.934C9.178,10.555 10.26,11.869 11.594,11.869Z"
+        android:fillColor="#5D8298"/>
+    <path
+        android:pathData="M16.152,16.231C16.107,13.408 15.739,12.603 12.917,12.094C12.917,12.094 12.52,12.6 11.594,12.6C10.669,12.6 10.271,12.094 10.271,12.094C7.481,12.598 7.089,13.39 7.038,16.139C7.034,16.364 7.032,16.375 7.031,16.349C7.031,16.398 7.032,16.488 7.032,16.646C7.032,16.646 7.703,18 11.594,18C15.485,18 16.157,16.646 16.157,16.646C16.157,16.545 16.157,16.474 16.157,16.426C16.156,16.443 16.155,16.411 16.152,16.231Z"
+        android:fillColor="#5D8298"/>
+</vector>
\ No newline at end of file