[Camera] Return all possible cameras on iOS

packages/camera/camera/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.9.7
+
+* Returns all the available cameras on iOS.
+
 ## 0.9.6
 
 * Adds audio access permission handling logic on iOS to fix an issue with `prepareForVideoRecording` not awaiting for the audio permission request result.

packages/camera/camera/example/ios/Runner.xcodeproj/project.pbxproj

@@ -15,6 +15,7 @@
 		25C3919135C3D981E6F800D0 /* libPods-RunnerTests.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 1944D8072499F3B5E7653D44 /* libPods-RunnerTests.a */; };
 		334733EA2668111C00DCC49E /* CameraOrientationTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 03BB767226653ABE00CE5A93 /* CameraOrientationTests.m */; };
 		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		43ED1537282570DE00EB00DE /* AvailableCamerasTest.m in Sources */ = {isa = PBXBuildFile; fileRef = 43ED1536282570DE00EB00DE /* AvailableCamerasTest.m */; };
 		788A065A27B0E02900533D74 /* StreamingTest.m in Sources */ = {isa = PBXBuildFile; fileRef = 788A065927B0E02900533D74 /* StreamingTest.m */; };
 		978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */; };
 		97C146F31CF9000F007C117D /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 97C146F21CF9000F007C117D /* main.m */; };
@@ -71,6 +72,7 @@
 		14AE82C910C2A12F2ECB2094 /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
 		1944D8072499F3B5E7653D44 /* libPods-RunnerTests.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-RunnerTests.a"; sourceTree = BUILT_PRODUCTS_DIR; };
 		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		43ED1536282570DE00EB00DE /* AvailableCamerasTest.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AvailableCamerasTest.m; sourceTree = "<group>"; };
 		59848A7CA98C1FADF8840207 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
 		788A065927B0E02900533D74 /* StreamingTest.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = StreamingTest.m; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
@@ -148,6 +150,7 @@
 				E032F24F279F5E94009E9028 /* CameraCaptureSessionQueueRaceConditionTests.m */,
 				E0F95E3C27A32AB900699390 /* CameraPropertiesTests.m */,
 				788A065927B0E02900533D74 /* StreamingTest.m */,
+				43ED1536282570DE00EB00DE /* AvailableCamerasTest.m */,
 			);
 			path = RunnerTests;
 			sourceTree = "<group>";
@@ -418,6 +421,7 @@
 				E487C86026D686A10034AC92 /* CameraPreviewPauseTests.m in Sources */,
 				E071CF7427B31DE4006EF3BA /* FLTCamSampleBufferTests.m in Sources */,
 				E04F108627A87CA600573D0C /* FLTSavePhotoDelegateTests.m in Sources */,
+				43ED1537282570DE00EB00DE /* AvailableCamerasTest.m in Sources */,
 				F6EE622F2710A6FC00905E4A /* MockFLTThreadSafeFlutterResult.m in Sources */,
 				E0CDBAC227CD9729002561D9 /* CameraTestUtils.m in Sources */,
 				334733EA2668111C00DCC49E /* CameraOrientationTests.m in Sources */,

packages/camera/camera/example/ios/RunnerTests/AvailableCamerasTest.m

@@ -0,0 +1,121 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+@import camera;
+@import camera.Test;
+@import XCTest;
+@import AVFoundation;
+#import <OCMock/OCMock.h>
+#import "MockFLTThreadSafeFlutterResult.h"
+
+@interface AvailableCamerasTest : XCTestCase
+@end
+
+@implementation AvailableCamerasTest
+
+- (void)testAvailableCamerasShouldReturnAllCamerasOnMultiCameraIPhone {
+  CameraPlugin *camera = [[CameraPlugin alloc] initWithRegistry:nil messenger:nil];
+  XCTestExpectation *expectation =
+      [[XCTestExpectation alloc] initWithDescription:@"Result finished"];
+
+  // iPhone 13 Cameras:
+  AVCaptureDevice *wideAngleCamera = OCMClassMock([AVCaptureDevice class]);
+  OCMStub([wideAngleCamera uniqueID]).andReturn(@"0");
+  OCMStub([wideAngleCamera position]).andReturn(AVCaptureDevicePositionBack);
+
+  AVCaptureDevice *frontFacingCamera = OCMClassMock([AVCaptureDevice class]);
+  OCMStub([frontFacingCamera uniqueID]).andReturn(@"1");
+  OCMStub([frontFacingCamera position]).andReturn(AVCaptureDevicePositionFront);
+
+  AVCaptureDevice *ultraWideCamera = OCMClassMock([AVCaptureDevice class]);
+  OCMStub([ultraWideCamera uniqueID]).andReturn(@"2");
+  OCMStub([ultraWideCamera position]).andReturn(AVCaptureDevicePositionBack);
+
+  AVCaptureDevice *telephotoCamera = OCMClassMock([AVCaptureDevice class]);
+  OCMStub([telephotoCamera uniqueID]).andReturn(@"3");
+  OCMStub([telephotoCamera position]).andReturn(AVCaptureDevicePositionBack);
+
+  NSMutableArray *requiredTypes =
+      [@[ AVCaptureDeviceTypeBuiltInWideAngleCamera, AVCaptureDeviceTypeBuiltInTelephotoCamera ]
+          mutableCopy];
+  if (@available(iOS 13.0, *)) {
+    [requiredTypes addObject:AVCaptureDeviceTypeBuiltInUltraWideCamera];
+  }
+
+  id discoverySessionMock = OCMClassMock([AVCaptureDeviceDiscoverySession class]);
+  OCMStub([discoverySessionMock discoverySessionWithDeviceTypes:requiredTypes
+                                                      mediaType:AVMediaTypeVideo
+                                                       position:AVCaptureDevicePositionUnspecified])
+      .andReturn(discoverySessionMock);
+
+  NSMutableArray *cameras = [NSMutableArray array];
+  [cameras addObjectsFromArray:@[ wideAngleCamera, frontFacingCamera, telephotoCamera ]];
+  if (@available(iOS 13.0, *)) {
+    [cameras addObject:ultraWideCamera];
+  }
+  OCMStub([discoverySessionMock devices]).andReturn([NSArray arrayWithArray:cameras]);
+
+  MockFLTThreadSafeFlutterResult *resultObject =
+      [[MockFLTThreadSafeFlutterResult alloc] initWithExpectation:expectation];
+
+  // Set up method call
+  FlutterMethodCall *call = [FlutterMethodCall methodCallWithMethodName:@"availableCameras"
+                                                              arguments:nil];
+
+  [camera handleMethodCallAsync:call result:resultObject];
+
+  // Verify the result
+  NSDictionary *dictionaryResult = (NSDictionary *)resultObject.receivedResult;
+  if (@available(iOS 13.0, *)) {
+    XCTAssertTrue([dictionaryResult count] == 4);
+  } else {
+    XCTAssertTrue([dictionaryResult count] == 3);
+  }
+}
+- (void)testAvailableCamerasShouldReturnOneCameraOnSingleCameraIPhone {
+  CameraPlugin *camera = [[CameraPlugin alloc] initWithRegistry:nil messenger:nil];
+  XCTestExpectation *expectation =
+      [[XCTestExpectation alloc] initWithDescription:@"Result finished"];
+
+  // iPhone 8 Cameras:
+  AVCaptureDevice *wideAngleCamera = OCMClassMock([AVCaptureDevice class]);
+  OCMStub([wideAngleCamera uniqueID]).andReturn(@"0");
+  OCMStub([wideAngleCamera position]).andReturn(AVCaptureDevicePositionBack);
+
+  AVCaptureDevice *frontFacingCamera = OCMClassMock([AVCaptureDevice class]);
+  OCMStub([frontFacingCamera uniqueID]).andReturn(@"1");
+  OCMStub([frontFacingCamera position]).andReturn(AVCaptureDevicePositionFront);
+
+  NSMutableArray *requiredTypes =
+      [@[ AVCaptureDeviceTypeBuiltInWideAngleCamera, AVCaptureDeviceTypeBuiltInTelephotoCamera ]
+          mutableCopy];
+  if (@available(iOS 13.0, *)) {
+    [requiredTypes addObject:AVCaptureDeviceTypeBuiltInUltraWideCamera];
+  }
+
+  id discoverySessionMock = OCMClassMock([AVCaptureDeviceDiscoverySession class]);
+  OCMStub([discoverySessionMock discoverySessionWithDeviceTypes:requiredTypes
+                                                      mediaType:AVMediaTypeVideo
+                                                       position:AVCaptureDevicePositionUnspecified])
+      .andReturn(discoverySessionMock);
+
+  NSMutableArray *cameras = [NSMutableArray array];
+  [cameras addObjectsFromArray:@[ wideAngleCamera, frontFacingCamera ]];
+  OCMStub([discoverySessionMock devices]).andReturn([NSArray arrayWithArray:cameras]);
+
+  MockFLTThreadSafeFlutterResult *resultObject =
+      [[MockFLTThreadSafeFlutterResult alloc] initWithExpectation:expectation];
+
+  // Set up method call
+  FlutterMethodCall *call = [FlutterMethodCall methodCallWithMethodName:@"availableCameras"
+                                                              arguments:nil];
+
+  [camera handleMethodCallAsync:call result:resultObject];
+
+  // Verify the result
+  NSDictionary *dictionaryResult = (NSDictionary *)resultObject.receivedResult;
+  XCTAssertTrue([dictionaryResult count] == 2);
+}
+
+@end

packages/camera/camera/ios/Classes/CameraPlugin.m

@@ -101,8 +101,14 @@ - (void)handleMethodCallAsync:(FlutterMethodCall *)call
                        result:(FLTThreadSafeFlutterResult *)result {
   if ([@"availableCameras" isEqualToString:call.method]) {
     if (@available(iOS 10.0, *)) {
+      NSMutableArray *discoveryDevices =
+          [@[ AVCaptureDeviceTypeBuiltInWideAngleCamera, AVCaptureDeviceTypeBuiltInTelephotoCamera ]
+              mutableCopy];
+      if (@available(iOS 13.0, *)) {
+        [discoveryDevices addObject:AVCaptureDeviceTypeBuiltInUltraWideCamera];
+      }
       AVCaptureDeviceDiscoverySession *discoverySession = [AVCaptureDeviceDiscoverySession
-          discoverySessionWithDeviceTypes:@[ AVCaptureDeviceTypeBuiltInWideAngleCamera ]
+          discoverySessionWithDeviceTypes:discoveryDevices
                                 mediaType:AVMediaTypeVideo
                                  position:AVCaptureDevicePositionUnspecified];
       NSArray<AVCaptureDevice *> *devices = discoverySession.devices;

packages/camera/camera/pubspec.yaml

@@ -4,7 +4,7 @@ description: A Flutter plugin for controlling the camera. Supports previewing
   Dart.
 repository: https://github.com/flutter/plugins/tree/main/packages/camera/camera
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+camera%22
-version: 0.9.6
+version: 0.9.7
 
 environment:
   sdk: ">=2.14.0 <3.0.0"