Add support for injecting Bundle when creating RiveFile

[Downstream community contribution](#250) to support pulling Rive files from bundles other than `.main`

Diffs=
46a0745e6 Add support for injecting Bundle when creating RiveFile (#5335)

Co-authored-by: Robert Dresler <robertdreslerjr@gmail.com>
Co-authored-by: Zachary Plata <plata.zach@gmail.com>

.rive_head

@@ -1 +1 @@
-064e7688a88e5160bc999f4387de212777da7283
+46a0745e62a9a7b2782e3a7fb60fbec2497e72ed

Source/RiveModel.swift

@@ -18,8 +18,8 @@ open class RiveModel: ObservableObject {
         self.riveFile = riveFile
     }
 
-    public init(fileName: String) throws {
-        riveFile = try RiveFile(name: fileName)
+    public init(fileName: String, extension: String = ".riv", in bundle: Bundle = .main) throws {
+        riveFile = try RiveFile(name: fileName, extension: `extension`, in: bundle)
     }
 
     public init(webURL: String, delegate: RiveFileDelegate) {

Source/RiveViewModel.swift

@@ -77,6 +77,8 @@ open class RiveViewModel: NSObject, ObservableObject, RiveFileDelegate, RiveStat
 
     public init(
         fileName: String,
+        extension: String = ".riv",
+        in bundle: Bundle = .main,
         stateMachineName: String?,
         fit: RiveFit = .contain,
         alignment: RiveAlignment = .center,
@@ -87,12 +89,14 @@ open class RiveViewModel: NSObject, ObservableObject, RiveFileDelegate, RiveStat
         self.alignment = alignment
         self.autoPlay = autoPlay
         super.init()
-        riveModel = try! RiveModel(fileName: fileName)
+        riveModel = try! RiveModel(fileName: fileName, extension: `extension`, in: bundle)
         sharedInit(artboardName: artboardName, stateMachineName: stateMachineName, animationName: nil)
     }
 
     public init(
         fileName: String,
+        extension: String = ".riv",
+        in bundle: Bundle = .main,
         animationName: String? = nil,
         fit: RiveFit = .contain,
         alignment: RiveAlignment = .center,
@@ -103,7 +107,7 @@ open class RiveViewModel: NSObject, ObservableObject, RiveFileDelegate, RiveStat
         self.alignment = alignment
         self.autoPlay = autoPlay
         super.init()
-        riveModel = try! RiveModel(fileName: fileName)
+        riveModel = try! RiveModel(fileName: fileName, extension: `extension`, in: bundle)
         sharedInit(artboardName: artboardName, stateMachineName: nil, animationName: animationName)
     }
 

Source/Utils/RiveFile+Extensions.swift

@@ -9,14 +9,14 @@
 import Foundation
 
 public extension RiveFile {
-    convenience init(name fileName: String, extension ext: String = ".riv") throws {
-        let byteArray = RiveFile.getBytes(fileName: fileName, extension: ext)
+    convenience init(name fileName: String, extension ext: String = ".riv", in bundle: Bundle = .main) throws {
+        let byteArray = RiveFile.getBytes(fileName: fileName, extension: ext, in: bundle)
         try self.init(byteArray: byteArray)
     }
 
-    static func getBytes(fileName: String, extension ext: String = ".riv") -> [UInt8] {
-        guard let url = Bundle.main.url(forResource: fileName, withExtension: ext) else {
-            fatalError("Failed to locate \(fileName) in bundle.")
+    static func getBytes(fileName: String, extension ext: String = ".riv", in bundle: Bundle = .main) -> [UInt8] {
+        guard let url = bundle.url(forResource: fileName, withExtension: ext) else {
+            fatalError("Failed to locate \(fileName) in bundle \(bundle).")
         }
         guard let data = try? Data(contentsOf: url) else {
             fatalError("Failed to load \(url) from bundle.")