Use default avatars for contact shares in contact view.

Signal/src/ViewControllers/ContactViewController.swift

@@ -202,9 +202,26 @@ class ContactViewController: OWSViewController, CNContactViewControllerDelegate
 
         // TODO: Use actual avatar.
         let avatarSize = CGFloat(100)
-        let avatarView = UIView.container()
-        avatarView.backgroundColor = UIColor.ows_materialBlue
-        avatarView.layer.cornerRadius = avatarSize * 0.5
+
+        let avatarView = AvatarImageView()
+        // TODO: What's the best colorSeed value to use?
+        let avatarBuilder = OWSContactAvatarBuilder(nonSignalName: contact.displayName,
+                                                    colorSeed: contact.displayName,
+                                                    diameter: UInt(avatarSize),
+                                                    contactsManager: contactsManager)
+//            [[OWSContactAvatarBuilder alloc] initWithNonSignalName:self.contactShare.displayName
+//                colorSeed:self.contactShare.displayName
+//                diameter:(NSUInteger)self.iconSize
+//                contactsManager:[Environment current].contactsManager];
+        avatarView.image = avatarBuilder.build()
+//        [avatarView autoSetDimension:ALDimensionWidth toSize:self.iconSize];
+//        [avatarView autoSetDimension:ALDimensionHeight toSize:self.iconSize];
+//        [avatarView setCompressionResistanceHigh];
+//        [avatarView setContentHuggingHigh];
+
+//        let avatarView = UIView.container()
+//        avatarView.backgroundColor = UIColor.ows_materialBlue
+//        avatarView.layer.cornerRadius = avatarSize * 0.5
         topView.addSubview(avatarView)
         avatarView.autoPin(toTopLayoutGuideOf: self, withInset: 20)
         avatarView.autoHCenterInSuperview()

Signal/src/ViewControllers/ConversationView/Cells/OWSContactShareView.m

@@ -105,6 +105,7 @@ NS_ASSUME_NONNULL_BEGIN
     [contentView autoPinEdgeToSuperviewEdge:ALEdgeTop withInset:self.vMargin];
     [contentView autoPinEdgeToSuperviewEdge:ALEdgeBottom withInset:self.vMargin];
 
+    // TODO: Use the contact's avatar if present and downloaded.
     AvatarImageView *avatarView = [AvatarImageView new];
     // TODO: What's the best colorSeed value to use?
     OWSAvatarBuilder *avatarBuilder =

Signal/translations/en.lproj/Localizable.strings

@@ -424,6 +424,9 @@
 /* navbar title for contact picker when sharing a contact */
 "CONTACT_PICKER_TITLE" = "Select Contact";
 
+/* Indicates that a contact has no name. */
+"CONTACT_WITHOUT_NAME" = "Unnamed Contact";
+
 /* title for conversation settings screen */
 "CONVERSATION_SETTINGS" = "Conversation Settings";
 

SignalServiceKit/src/Messages/Interactions/OWSContact+Private.h

@@ -55,7 +55,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, nullable) NSString *namePrefix;
 @property (nonatomic, nullable) NSString *middleName;
 @property (nonatomic, nullable) NSString *organizationName;
-@property (nonatomic, nullable) NSString *displayName;
+@property (nonatomic) NSString *displayName;
 
 @property (nonatomic) NSArray<OWSContactPhoneNumber *> *phoneNumbers;
 @property (nonatomic) NSArray<OWSContactEmail *> *emails;

SignalServiceKit/src/Messages/Interactions/OWSContact.h

@@ -109,7 +109,7 @@ NSString *NSStringForContactAddressType(OWSContactAddressType value);
 @property (nonatomic, readonly, nullable) NSString *namePrefix;
 @property (nonatomic, readonly, nullable) NSString *middleName;
 @property (nonatomic, readonly, nullable) NSString *organizationName;
-@property (nonatomic, readonly, nullable) NSString *displayName;
+@property (nonatomic, readonly) NSString *displayName;
 
 @property (nonatomic, readonly) NSArray<OWSContactPhoneNumber *> *phoneNumbers;
 @property (nonatomic, readonly) NSArray<OWSContactEmail *> *emails;

SignalServiceKit/src/Messages/Interactions/OWSContact.m

@@ -288,7 +288,7 @@ NSString *NSStringForContactAddressType(OWSContactAddressType value)
 @property (nonatomic, nullable) NSString *namePrefix;
 @property (nonatomic, nullable) NSString *middleName;
 @property (nonatomic, nullable) NSString *organizationName;
-@property (nonatomic, nullable) NSString *displayName;
+@property (nonatomic) NSString *displayName;
 
 @property (nonatomic) NSArray<OWSContactPhoneNumber *> *phoneNumbers;
 @property (nonatomic) NSArray<OWSContactEmail *> *emails;
@@ -360,10 +360,14 @@ NSString *NSStringForContactAddressType(OWSContactAddressType value)
     return hasValue;
 }
 
-- (nullable NSString *)displayName
+- (NSString *)displayName
 {
     [self ensureDisplayName];
 
+    if (_displayName.length < 1) {
+        OWSProdLogAndFail(@"%@ could not derive a valid display name.", self.logTag);
+        return NSLocalizedString(@"CONTACT_WITHOUT_NAME", @"Indicates that a contact has no name.");
+    }
     return _displayName;
 }
 
@@ -377,9 +381,6 @@ NSString *NSStringForContactAddressType(OWSContactAddressType value)
         // Fall back to using the organization name.
         _displayName = self.organizationName;
     }
-    if (_displayName.length < 1) {
-        OWSProdLogAndFail(@"%@ could not derive a valid display name.", self.logTag);
-    }
 }
 
 - (NSString *)debugDescription