Fix bundle resource loading for dynamic frameworks

Author: morganchen12

FirebaseAnonymousAuthUI.podspec

@@ -9,7 +9,6 @@ Pod::Spec.new do |s|
   s.platform = :ios
   s.ios.deployment_target = '10.0'
   s.ios.framework = 'UIKit'
-  s.static_framework = true
   s.requires_arc = true
   s.cocoapods_version = '>= 1.8.0'
   s.pod_target_xcconfig = {
@@ -21,7 +20,7 @@ Pod::Spec.new do |s|
   s.dependency 'FirebaseAuthUI'
   s.dependency 'FirebaseAuth', '~> 8.0'
   s.dependency 'FirebaseCore'
-  s.resource_bundle = {
+  s.resource_bundles = {
     'FirebaseAnonymousAuthUI' => [
       'FirebaseAnonymousAuthUI/Sources/{Resources,Strings}/*.{png,lproj}'
     ]

FirebaseAnonymousAuthUI/Sources/FUIAnonymousAuth.m

@@ -49,6 +49,11 @@ @implementation FUIAnonymousAuth {
   UIViewController *_presentingViewController;
 }
 
++ (NSBundle *)bundle {
+  return [FUIAuthUtils bundleNamed:kBundleName
+                 inFrameworkBundle:[NSBundle bundleForClass:[self class]]];
+}
+
 - (instancetype)init {
   return [self initWithAuthUI:[FUIAuth defaultAuthUI]];
 }
@@ -85,11 +90,13 @@ - (NSString *)shortName {
 }
 
 - (NSString *)signInLabel {
-  return FUILocalizedStringFromTableInBundle(kSignInAsGuest, kTableName, kBundleName);
+  return FUILocalizedStringFromTableInBundle(kSignInAsGuest,
+                                             kTableName,
+                                             [FUIAnonymousAuth bundle]);
 }
 
 - (UIImage *)icon {
-  return [FUIAuthUtils imageNamed:@"ic_anonymous" fromBundleNameOrNil:kBundleName];
+  return [FUIAuthUtils imageNamed:@"ic_anonymous" fromBundle:[FUIAnonymousAuth bundle]];
 }
 
 - (UIColor *)buttonBackgroundColor {

FirebaseAnonymousAuthUI/Sources/Public/FirebaseAnonymousAuthUI/FUIAnonymousAuth.h

@@ -28,6 +28,11 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @property(nonatomic, readwrite) FUIButtonAlignment buttonAlignment;
 
+/** @fn bundle
+    @brief Returns the FirebaseAnonymousAuthUI resource bundle.
+ */
++ (NSBundle *)bundle;
+
 /** @fn init
     @brief Initialize the instance with the default AuthUI. 
  */

FirebaseAuthUI.podspec

@@ -21,7 +21,7 @@ Pod::Spec.new do |s|
   s.dependency 'FirebaseAuth'
   s.dependency 'FirebaseCore'
   s.dependency 'GoogleUtilities/UserDefaults'
-  s.resource_bundle = {
+  s.resource_bundles = {
     'FirebaseAuthUI' => ['FirebaseAuthUI/Sources/{Resources,Strings}/*.{xib,png,lproj}']
   }
 

FirebaseAuthUI/Sources/FUIAuthBaseViewController.m

@@ -87,7 +87,7 @@ - (instancetype)initWithNibName:(NSString *)nibNameOrNil
 
 - (instancetype)initWithAuthUI:(FUIAuth *)authUI {
   return [self initWithNibName:NSStringFromClass([self class])
-                        bundle:[FUIAuthUtils bundleNamed:FUIAuthBundleName]
+                        bundle:[FUIAuthUtils authUIBundle]
                         authUI:authUI];
 }
 

FirebaseAuthUI/Sources/FUIAuthPickerViewController.m

@@ -73,7 +73,7 @@ @implementation FUIAuthPickerViewController {
 
 - (instancetype)initWithAuthUI:(FUIAuth *)authUI {
   return [self initWithNibName:@"FUIAuthPickerViewController"
-                        bundle:[FUIAuthUtils bundleNamed:FUIAuthBundleName]
+                        bundle:[FUIAuthUtils authUIBundle]
                         authUI:authUI];
 }
 

FirebaseAuthUI/Sources/FUIAuthStrings.m

@@ -130,12 +130,12 @@
 }
 
 NSString *FUILocalizedStringFromTable(NSString *key, NSString *table) {
-  return FUILocalizedStringFromTableInBundle(key, table, FUIAuthBundleName);
+  return FUILocalizedStringFromTableInBundle(key, table, [FUIAuthUtils authUIBundle]);
 }
 
 NSString *FUILocalizedStringFromTableInBundle(NSString *key,
                                               NSString *table,
-                                              NSString *_Nullable bundleName) {
+                                              NSBundle *_Nullable bundle) {
   // Don't load defaultAuthUI if the default app isn't configured. We don't recommend
   // people do this in our docs, but if for whatever reason they want to use a custom
   // app, this code shouldn't crash.
@@ -150,11 +150,10 @@
       }
     }
   }
-  NSBundle *frameworkBundle = [FUIAuthUtils bundleNamed:bundleName];
-  if (frameworkBundle == nil) {
-    frameworkBundle = [NSBundle mainBundle];
+  if (bundle == nil) {
+    bundle = [NSBundle mainBundle];
   }
-  return [frameworkBundle localizedStringForKey:key value:nil table:table];
+  return [bundle localizedStringForKey:key value:nil table:table];
 }
 
 NS_ASSUME_NONNULL_END

FirebaseAuthUI/Sources/FUIAuthUtils.m

@@ -24,40 +24,50 @@
 
 @implementation FUIAuthUtils
 
-+ (nullable NSBundle *)bundleNamed:(nullable NSString *)bundleName {
-  NSBundle *frameworkBundle = nil;
++ (NSBundle *)authUIBundle {
+  return [self bundleNamed:FUIAuthBundleName
+         inFrameworkBundle:[NSBundle bundleForClass:[self class]]];
+}
+
++ (nullable NSBundle *)bundleNamed:(nullable NSString *)bundleName
+                 inFrameworkBundle:(nullable NSBundle *)framework {
+  NSBundle *returnBundle = nil;
   if (!bundleName) {
     bundleName = FUIAuthBundleName;
   }
+  // If using static frameworks, the bundle will be included directly in the main
+  // bundle.
   NSString *path = [[NSBundle mainBundle] pathForResource:bundleName ofType:@"bundle"];
+
+  // Otherwise, check the appropriate framework bundle.
   if (!path) {
-    // Check framework resources if bundle isn't present in main bundle.
-    path = [[NSBundle mainBundle] pathForResource:bundleName ofType:@"framework"];
+    NSBundle *frameworkBundle = framework;
+    if (frameworkBundle == nil) {
+      // If frameworkBundle is unspecified, assume main bundle/static linking.
+      frameworkBundle = [NSBundle mainBundle];
+    }
+    path = [frameworkBundle pathForResource:bundleName ofType:@"bundle"];
   }
-  frameworkBundle = [NSBundle bundleWithPath:path];
-  if (!frameworkBundle) {
-    frameworkBundle = [NSBundle bundleForClass:[self class]];
+  if (!path) {
+    NSLog(@"Warning: Unable to find bundle %@ in framework %@.", bundleName, framework);
   }
-  return frameworkBundle;
+  returnBundle = [NSBundle bundleWithPath:path];
+  return returnBundle;
 }
 
 + (nullable UIImage *)imageNamed:(NSString *)name fromBundle:(nullable NSBundle *)bundle {
   if (!bundle) {
-    bundle = [self bundleNamed:nil];
+    bundle = [self authUIBundle];
   }
   NSString *path = [bundle pathForResource:name ofType:@"png"];
   if (!path) {
     NSLog(@"Warning: Unable to find asset %@ in bundle %@.", name, bundle);
   }
-  return [UIImage imageWithContentsOfFile:path];
-}
-
-+ (nullable UIImage *)imageNamed:(NSString *)name fromBundleNameOrNil:(nullable NSString *)bundleNameOrNil {
-  NSString *path = [[FUIAuthUtils bundleNamed:bundleNameOrNil] pathForResource:name ofType:@"png"];
-  if (!path) {
-    NSLog(@"Warning: Unable to find asset %@ in bundle named %@.", name, bundleNameOrNil);
+  if (@available(iOS 13.0, *)) {
+    return [UIImage imageNamed:name inBundle:bundle withConfiguration:nil];
+  } else {
+    return [UIImage imageWithContentsOfFile:path];
   }
-  return [UIImage imageWithContentsOfFile:path];
 }
 
 @end

FirebaseAuthUI/Sources/FUIStaticContentTableViewController.m

@@ -68,7 +68,7 @@ - (instancetype)initWithContents:(nullable FUIStaticContentTableViewContent *)co
                       footerText:(nullable NSString *)footerText
                     footerAction:(nullable FUIStaticContentTableViewCellAction)footerAction {
   if (self = [super initWithNibName:NSStringFromClass([self class])
-                             bundle:[FUIAuthUtils bundleNamed:FUIAuthBundleName]
+                             bundle:[FUIAuthUtils authUIBundle]
                              authUI:[FUIAuth defaultAuthUI]]) {
     _tableViewManager.contents = contents;
     _nextAction = [nextAction copy];

FirebaseAuthUI/Sources/FUIStaticContentTableViewManager.m

@@ -64,11 +64,11 @@ - (void)setTableView:(nullable UITableView *)tableView {
   [tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:kCellReuseIdentitfier];
 
   UINib *passwordCellNib = [UINib nibWithNibName:NSStringFromClass([FUIPasswordTableViewCell class])
-                                          bundle:[FUIAuthUtils bundleNamed:FUIAuthBundleName]];
+                                          bundle:[FUIAuthUtils authUIBundle]];
   [tableView registerNib:passwordCellNib forCellReuseIdentifier:kPasswordCellReuseIdentitfier];
 
   UINib *inputCellNib = [UINib nibWithNibName:NSStringFromClass([FUIInputTableViewCell class])
-                                       bundle:[FUIAuthUtils bundleNamed:FUIAuthBundleName]];
+                                       bundle:[FUIAuthUtils authUIBundle]];
   [tableView registerNib:inputCellNib forCellReuseIdentifier:kInputCellReuseIdentitfier];
 }