use new designated init

Author: morganchen12

FirebaseDatabaseUI/FUISortedArray.h

@@ -28,6 +28,8 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, readonly, copy) NSArray<FIRDataSnapshot *> *items;
 
 - (instancetype)initWithQuery:(id<FUIDataObservable>)query NS_UNAVAILABLE;
+- (instancetype)initWithQuery:(id<FUIDataObservable>)query
+                     delegate:(nullable id<FUICollectionDelegate>)delegate NS_UNAVAILABLE;
 
 /**
  * Initializes a sorted collection.

FirebaseDatabaseUI/FUISortedArray.m

@@ -45,9 +45,8 @@ - (instancetype)initWithQuery:(FIRDatabaseQuery *)query
                      delegate:(id<FUICollectionDelegate>)delegate
                sortDescriptor:(NSComparisonResult (^)(FIRDataSnapshot *,
                                                       FIRDataSnapshot *))sortDescriptor {
-  self = [super initWithQuery:query];
+  self = [super initWithQuery:query delegate:delegate];
   if (self != nil) {
-    super.delegate = delegate;
     _sortDescriptor = sortDescriptor;
     _handles = [NSMutableSet setWithCapacity:4];
   }

FirebaseUI.xcodeproj/project.pbxproj

@@ -12,7 +12,6 @@
 		8D2A84AA1D678B2B0058DF04 /* FirebaseUI.h in Headers */ = {isa = PBXBuildFile; fileRef = 8D2A84A91D678B2B0058DF04 /* FirebaseUI.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		8D3A120E1DC2B122007558BA /* FUISortedArray.h in Headers */ = {isa = PBXBuildFile; fileRef = 8D3A120C1DC2B122007558BA /* FUISortedArray.h */; };
 		8D3A120F1DC2B122007558BA /* FUISortedArray.m in Sources */ = {isa = PBXBuildFile; fileRef = 8D3A120D1DC2B122007558BA /* FUISortedArray.m */; };
-		8D60505F1DCA8EB8005D8635 /* FUISortedArrayTest.m in Sources */ = {isa = PBXBuildFile; fileRef = 8D60505E1DCA8EB8005D8635 /* FUISortedArrayTest.m */; };
 		8D78AF061D9D8CB000CFA9C5 /* UIImageView+FirebaseStorage.m in Sources */ = {isa = PBXBuildFile; fileRef = 8D7AD9B61D9317FB006866B9 /* UIImageView+FirebaseStorage.m */; };
 		8D7AD9B71D9317FB006866B9 /* UIImageView+FirebaseStorage.h in Headers */ = {isa = PBXBuildFile; fileRef = 8D7AD9B51D9317FB006866B9 /* UIImageView+FirebaseStorage.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		8D7AD9B81D9317FB006866B9 /* UIImageView+FirebaseStorage.m in Sources */ = {isa = PBXBuildFile; fileRef = 8D7AD9B61D9317FB006866B9 /* UIImageView+FirebaseStorage.m */; };
@@ -98,6 +97,8 @@
 		8DA941DF1D6793EE00CD3685 /* [email protected] in Resources */ = {isa = PBXBuildFile; fileRef = 8DA941DC1D6793EE00CD3685 /* [email protected] */; };
 		8DA941E31D67940100CD3685 /* FirebaseFacebookAuthUI.strings in Resources */ = {isa = PBXBuildFile; fileRef = 8DA941E11D67940100CD3685 /* FirebaseFacebookAuthUI.strings */; };
 		8DA941E81D67945100CD3685 /* FirebaseAuthUI.strings in Resources */ = {isa = PBXBuildFile; fileRef = 8DA941E61D67945100CD3685 /* FirebaseAuthUI.strings */; };
+		8DAC55A81DD666CB00D52664 /* FUISortedArrayTest.m in Sources */ = {isa = PBXBuildFile; fileRef = 8D60505E1DCA8EB8005D8635 /* FUISortedArrayTest.m */; };
+		8DAC55A91DD666D700D52664 /* FUIDatabaseTestUtils.m in Sources */ = {isa = PBXBuildFile; fileRef = 8DA941EB1D67951B00CD3685 /* FUIDatabaseTestUtils.m */; };
 		8DAF8BF61D89CC5300B251C7 /* FUIAuthTest.m in Sources */ = {isa = PBXBuildFile; fileRef = 8DAF8BF41D89CC5300B251C7 /* FUIAuthTest.m */; };
 		8DAF8BF71D89CC5300B251C7 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 8DAF8BF51D89CC5300B251C7 /* GoogleService-Info.plist */; };
 		8DBA0F7F1D872E4300D113D3 /* FUIArray.m in Sources */ = {isa = PBXBuildFile; fileRef = 8DA941431D678E3200CD3685 /* FUIArray.m */; };
@@ -1921,11 +1922,8 @@
 				8D01FC7B1DAEC2FF00BD7848 /* FUIIndexCollectionViewDataSourceTest.m in Sources */,
 				8D1E107C1DAEB97300AEFCA0 /* FUIIndexTableViewDataSourceTest.m in Sources */,
 				8D924C611DA6F69100C4DA48 /* FUIIndexArrayTest.m in Sources */,
-				8D9B1BF71DD105BE003D1F47 /* FUIArrayTest.m in Sources */,
-				8D9B1BF31DD105AC003D1F47 /* FUIDatabaseTestUtils.m in Sources */,
-				8D9B1BF81DD105C1003D1F47 /* FUICollectionViewDataSourceTest.m in Sources */,
-				8D9B1BF91DD105C5003D1F47 /* FUITableViewDataSourceTest.m in Sources */,
-				8D60505F1DCA8EB8005D8635 /* FUISortedArrayTest.m in Sources */,
+				8DAC55A91DD666D700D52664 /* FUIDatabaseTestUtils.m in Sources */,
+				8DAC55A81DD666CB00D52664 /* FUISortedArrayTest.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};