Add FrescoAvatarHelper.kt

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 setupDraweeAndLoadImage(draweeView: SimpleDraweeView, imageUrl: String) {
+            FrescoAvatarHelper.setupDrawee(draweeView)
+            FrescoAvatarHelper.loadImage(imageUrl, draweeView)
+        }
+
+        @JvmStatic fun setupDrawee(draweeView: SimpleDraweeView) {
+            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())
+        }
+
+        @JvmStatic fun loadImage(imageUrl: String, draweeView: SimpleDraweeView) {
+            val controller = Fresco.newDraweeControllerBuilder()
+                    .setUri(Uri.parse(imageUrl))
+                    .setAutoPlayAnimations(true)
+                    .setTapToRetryEnabled(true)
+                    .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
+        }
+    }
+}
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