Fix API 19 drawable crash in ManageGroupFragment.

app/src/main/java/org/thoughtcrime/securesms/contacts/avatars/GroupFallbackPhoto80.java

@@ -0,0 +1,55 @@
+package org.thoughtcrime.securesms.contacts.avatars;
+
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.InsetDrawable;
+import android.graphics.drawable.LayerDrawable;
+import android.os.Build;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.content.res.AppCompatResources;
+import androidx.core.content.ContextCompat;
+import androidx.core.graphics.drawable.DrawableCompat;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.color.MaterialColor;
+import org.thoughtcrime.securesms.util.ThemeUtil;
+import org.thoughtcrime.securesms.util.ViewUtil;
+
+import java.util.Objects;
+
+public final class GroupFallbackPhoto80 implements FallbackContactPhoto {
+  @Override
+  public Drawable asDrawable(Context context, int color) {
+    return buildDrawable(context);
+  }
+
+  @Override
+  public Drawable asDrawable(Context context, int color, boolean inverted) {
+    return buildDrawable(context);
+  }
+
+  @Override
+  public Drawable asSmallDrawable(Context context, int color, boolean inverted) {
+    throw new UnsupportedOperationException();
+  }
+
+  @Override
+  public Drawable asCallCard(Context context) {
+    throw new UnsupportedOperationException();
+  }
+
+  private @NonNull Drawable buildDrawable(@NonNull Context context) {
+    Drawable      background      = DrawableCompat.wrap(Objects.requireNonNull(AppCompatResources.getDrawable(context, R.drawable.circle_tintable)));
+    Drawable      foreground      = AppCompatResources.getDrawable(context, R.drawable.ic_group_80);
+    Drawable      gradient        = ThemeUtil.getThemedDrawable(context, R.attr.resource_placeholder_gradient);
+    LayerDrawable drawable        = new LayerDrawable(new Drawable[]{background, foreground, gradient});
+    int           foregroundInset = ViewUtil.dpToPx(24);
+
+    DrawableCompat.setTint(background, MaterialColor.ULTRAMARINE.toAvatarColor(context));
+
+    drawable.setLayerInset(1, foregroundInset, foregroundInset, foregroundInset, foregroundInset);
+
+    return drawable;
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/groups/ui/managegroup/ManageGroupFragment.java

@@ -31,6 +31,7 @@ import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.components.AvatarImageView;
 import org.thoughtcrime.securesms.components.ThreadPhotoRailView;
 import org.thoughtcrime.securesms.contacts.avatars.FallbackContactPhoto;
+import org.thoughtcrime.securesms.contacts.avatars.GroupFallbackPhoto80;
 import org.thoughtcrime.securesms.groups.GroupId;
 import org.thoughtcrime.securesms.groups.ui.GroupMemberListView;
 import org.thoughtcrime.securesms.groups.ui.LeaveGroupDialog;
@@ -96,27 +97,7 @@ public class ManageGroupFragment extends Fragment {
   private final Recipient.FallbackPhotoProvider fallbackPhotoProvider = new Recipient.FallbackPhotoProvider() {
     @Override
     public @NonNull FallbackContactPhoto getPhotoForGroup() {
-      return new FallbackContactPhoto() {
+      return new GroupFallbackPhoto80();
-        @Override
-        public Drawable asDrawable(Context context, int color) {
-          return ThemeUtil.getThemedDrawable(context, R.attr.group_resource_placeholder_80);
-        }
-
-        @Override
-        public Drawable asDrawable(Context context, int color, boolean inverted) {
-          return asDrawable(context, color);
-        }
-
-        @Override
-        public Drawable asSmallDrawable(Context context, int color, boolean inverted) {
-          throw new UnsupportedOperationException();
-        }
-
-        @Override
-        public Drawable asCallCard(Context context) {
-          throw new UnsupportedOperationException();
-        }
-      };
     }
   };
 

app/src/main/res/drawable/group_resource_placeholder_80.xml

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item>
-        <shape android:shape="oval">
-            <solid android:color="?attr/resource_placeholder_background" />
-        </shape>
-    </item>
-    <item
-        android:bottom="24dp"
-        android:drawable="@drawable/ic_group_80"
-        android:left="24dp"
-        android:right="24dp"
-        android:top="24dp" />
-
-    <item android:drawable="?attr/resource_placeholder_gradient" />
-</layer-list>

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

@@ -31,9 +31,7 @@
     <attr name="conversation_list_compose_icon_tint" format="color" />
     <attr name="conversation_list_camera_button_background" format="color"/>
 
-    <attr name="group_resource_placeholder_80" format="reference" />
     <attr name="resource_placeholder_gradient" format="reference" />
-    <attr name="resource_placeholder_background" format="color" />
 
     <attr name="avatar_selection_take_photo" format="reference" />
     <attr name="avatar_selection_pick_photo" format="reference" />

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

@@ -162,9 +162,7 @@
         <item name="insight_dashboard_bottom_bar_background">@color/core_grey_02</item>
         <item name="insight_progress_background">@color/core_grey_15</item>
 
-        <item name="group_resource_placeholder_80">@drawable/group_resource_placeholder_80</item>
         <item name="resource_placeholder_gradient">@drawable/avatar_gradient_light</item>
-        <item name="resource_placeholder_background">@color/core_ultramarine</item>
 
         <item name="search_view_style">@style/Signal.SearchView</item>
         <item name="search_view_style_dark">@style/Signal.SearchView.Dark</item>
@@ -456,9 +454,7 @@
         <item name="insight_progress_background">@color/core_grey_60</item>
         <item name="insight_dashboard_bottom_bar_background">@color/core_grey_80</item>
 
-        <item name="group_resource_placeholder_80">@drawable/group_resource_placeholder_80</item>
         <item name="resource_placeholder_gradient">@drawable/avatar_gradient_dark</item>
-        <item name="resource_placeholder_background">@color/core_ultramarine</item>
 
         <item name="search_view_style">@style/Signal.SearchView</item>
         <item name="search_view_style_dark">@style/Signal.SearchView.Dark</item>