Merge pull request #34 from dustin-graham/customize_ios

Make iOS scanner UI look the same as Android

example/ios/Podfile.lock

@@ -3,23 +3,27 @@ PODS:
     - Flutter
     - MTBBarcodeScanner
   - Flutter (1.0.0)
-  - MTBBarcodeScanner (5.0.1)
+  - MTBBarcodeScanner (5.0.6)
 
 DEPENDENCIES:
-  - barcode_scan (from `/Users/matthew/Projects/AppTree/barcode_scan/ios`)
+  - barcode_scan (from `/Users/dustin/Documents/workspace_flutter/flutter_barcode_reader/ios`)
-  - Flutter (from `/Users/matthew/flutter/bin/cache/artifacts/engine/ios`)
+  - Flutter (from `/Users/dustin/flutter/bin/cache/artifacts/engine/ios`)
+
+SPEC REPOS:
+  https://github.com/cocoapods/specs.git:
+    - MTBBarcodeScanner
 
 EXTERNAL SOURCES:
   barcode_scan:
-    :path: /Users/matthew/Projects/AppTree/barcode_scan/ios
+    :path: "/Users/dustin/Documents/workspace_flutter/flutter_barcode_reader/ios"
   Flutter:
-    :path: /Users/matthew/flutter/bin/cache/artifacts/engine/ios
+    :path: "/Users/dustin/flutter/bin/cache/artifacts/engine/ios"
 
 SPEC CHECKSUMS:
-  barcode_scan: 33f586d02270046fc6559135038b34b5754eaa4f
+  barcode_scan: 8288e70cb430072003bce2c794a1431e7adbcb4d
-  Flutter: d674e78c937094a75ac71dd77e921e840bea3dbf
+  Flutter: 9d0fac939486c9aba2809b7982dfdbb47a7b0296
-  MTBBarcodeScanner: 66c75f40cbac5986c97634a0775bfe7f92243e7c
+  MTBBarcodeScanner: bb0bb62e18b57f8a571a482248adc20722b70a91
 
 PODFILE CHECKSUM: 407db753d18e8726329521f96a8fa0bebaef3f42
 
-COCOAPODS: 1.3.1
+COCOAPODS: 1.5.3

example/ios/Runner.xcodeproj/project.pbxproj

@@ -8,6 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		2D5378261FAA1A9400D5DBA9 /* flutter_assets in Resources */ = {isa = PBXBuildFile; fileRef = 2D5378251FAA1A9400D5DBA9 /* flutter_assets */; };
 		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
 		3B80C3941E831B6300D905FE /* App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3B80C3931E831B6300D905FE /* App.framework */; };
 		3B80C3951E831B6300D905FE /* App.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 3B80C3931E831B6300D905FE /* App.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
@@ -17,7 +18,6 @@
 		9705A1C71CF904A300538489 /* Flutter.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 9740EEBA1CF902C7004384FC /* Flutter.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		9740EEB41CF90195004384FC /* Debug.xcconfig in Resources */ = {isa = PBXBuildFile; fileRef = 9740EEB21CF90195004384FC /* Debug.xcconfig */; };
 		9740EEB51CF90195004384FC /* Generated.xcconfig in Resources */ = {isa = PBXBuildFile; fileRef = 9740EEB31CF90195004384FC /* Generated.xcconfig */; };
-		9740EEBB1CF902C7004384FC /* app.flx in Resources */ = {isa = PBXBuildFile; fileRef = 9740EEB71CF902C7004384FC /* app.flx */; };
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
@@ -41,6 +41,7 @@
 /* Begin PBXFileReference section */
 		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
 		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		2D5378251FAA1A9400D5DBA9 /* flutter_assets */ = {isa = PBXFileReference; lastKnownFileType = folder; name = flutter_assets; path = Flutter/flutter_assets; sourceTree = SOURCE_ROOT; };
 		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
 		3B80C3931E831B6300D905FE /* App.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = App.framework; path = Flutter/App.framework; sourceTree = "<group>"; };
 		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
@@ -48,7 +49,6 @@
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
 		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
-		9740EEB71CF902C7004384FC /* app.flx */ = {isa = PBXFileReference; lastKnownFileType = file; name = app.flx; path = Flutter/app.flx; sourceTree = "<group>"; };
 		9740EEBA1CF902C7004384FC /* Flutter.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Flutter.framework; path = Flutter/Flutter.framework; sourceTree = "<group>"; };
 		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
@@ -83,9 +83,9 @@
 		9740EEB11CF90186004384FC /* Flutter */ = {
 			isa = PBXGroup;
 			children = (
-				9740EEB71CF902C7004384FC /* app.flx */,
 				3B80C3931E831B6300D905FE /* App.framework */,
 				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
+				2D5378251FAA1A9400D5DBA9 /* flutter_assets */,
 				9740EEBA1CF902C7004384FC /* Flutter.framework */,
 				9740EEB21CF90195004384FC /* Debug.xcconfig */,
 				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
@@ -158,7 +158,6 @@
 				9705A1C41CF9048500538489 /* Embed Frameworks */,
 				3B06AD1E1E4923F5004D2608 /* Thin Binary */,
 				9B898C697EA984FE43747B57 /* [CP] Embed Pods Frameworks */,
-				146C1B61A1B6B49623A4CD5B /* [CP] Copy Pods Resources */,
 			);
 			buildRules = (
 			);
@@ -180,7 +179,7 @@
 				TargetAttributes = {
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
-						DevelopmentTeam = RTZBJSE8E8;
+						DevelopmentTeam = XPX9B2R9P6;
 						LastSwiftMigration = 0830;
 					};
 				};
@@ -208,10 +207,10 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				9740EEBB1CF902C7004384FC /* app.flx in Resources */,
 				97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */,
 				9740EEB51CF90195004384FC /* Generated.xcconfig in Resources */,
 				3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */,
+				2D5378261FAA1A9400D5DBA9 /* flutter_assets in Resources */,
 				9740EEB41CF90195004384FC /* Debug.xcconfig in Resources */,
 				97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */,
 				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
@@ -221,24 +220,6 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
-		146C1B61A1B6B49623A4CD5B /* [CP] Copy Pods Resources */ = {
-			isa = PBXShellScriptBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			inputPaths = (
-				"${SRCROOT}/Pods/Target Support Files/Pods-Runner/Pods-Runner-resources.sh",
-				"${PODS_ROOT}/GoogleMaps/Maps/Frameworks/GoogleMaps.framework/Versions/A/Resources/GoogleMaps.bundle",
-			);
-			name = "[CP] Copy Pods Resources";
-			outputPaths = (
-				"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}",
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-			shellPath = /bin/sh;
-			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-Runner/Pods-Runner-resources.sh\"\n";
-			showEnvVarsInLog = 0;
-		};
 		3B06AD1E1E4923F5004D2608 /* Thin Binary */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
@@ -434,7 +415,7 @@
 				ARCHS = arm64;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
-				DEVELOPMENT_TEAM = RTZBJSE8E8;
+				DEVELOPMENT_TEAM = XPX9B2R9P6;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -461,7 +442,7 @@
 				ARCHS = arm64;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
-				DEVELOPMENT_TEAM = RTZBJSE8E8;
+				DEVELOPMENT_TEAM = XPX9B2R9P6;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",

ios/Classes/BarcodeScanPlugin.h

@@ -1,6 +1,11 @@
 #import <Flutter/Flutter.h>
 #import "BarcodeScannerViewControllerDelegate.h"
 
+#define UIColorFromRGB(rgbValue) \
+[UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \
+  green:((float)((rgbValue & 0x00FF00) >>  8))/255.0 \
+  blue:((float)((rgbValue & 0x0000FF) >>  0))/255.0 \
+  alpha:1.0]
 
 @interface BarcodeScanPlugin : NSObject<FlutterPlugin, BarcodeScannerViewControllerDelegate>
 

ios/Classes/BarcodeScannerViewController.h

@@ -6,11 +6,15 @@
 #import <MTBBarcodeScanner/MTBBarcodeScanner.h>
 
 #import "BarcodeScannerViewControllerDelegate.h"
+#import "ScannerOverlay.h"
 
 
 @interface BarcodeScannerViewController : UIViewController
 @property(nonatomic, retain) UIView *previewView;
+  @property(nonatomic, retain) ScannerOverlay *scanRect;
 @property(nonatomic, retain) MTBBarcodeScanner *scanner;
 @property(nonatomic, weak) id<BarcodeScannerViewControllerDelegate> delegate;
 
+  
+  -(id) initWithOptions:(NSDictionary *) options;
 @end

ios/Classes/BarcodeScannerViewController.m

@@ -4,6 +4,7 @@
 
 #import "BarcodeScannerViewController.h"
 #import <MTBBarcodeScanner/MTBBarcodeScanner.h>
+#import "ScannerOverlay.h"
 
 
 @implementation BarcodeScannerViewController {
@@ -25,8 +26,28 @@
                                 options:NSLayoutFormatAlignAllBottom
                                 metrics:nil
                                   views:@{@"previewView": _previewView}]];
+  self.scanRect = [[ScannerOverlay alloc] initWithFrame:self.view.bounds];
+  self.scanRect.translatesAutoresizingMaskIntoConstraints = NO;
+  self.scanRect.backgroundColor = UIColor.clearColor;
+  [self.view addSubview:_scanRect];
+  [self.view addConstraints:[NSLayoutConstraint
+                             constraintsWithVisualFormat:@"V:[scanRect]"
+                             options:NSLayoutFormatAlignAllBottom
+                             metrics:nil
+                             views:@{@"scanRect": _scanRect}]];
+  [self.view addConstraints:[NSLayoutConstraint
+                             constraintsWithVisualFormat:@"H:[scanRect]"
+                             options:NSLayoutFormatAlignAllBottom
+                             metrics:nil
+                             views:@{@"scanRect": _scanRect}]];
+  [_scanRect startAnimating];
     self.scanner = [[MTBBarcodeScanner alloc] initWithPreviewView:_previewView];
+  __weak BarcodeScannerViewController *weakSelf = self;
+  self.scanner.didStartScanningBlock = ^{
+    weakSelf.scanner.scanRect = weakSelf.scanRect.scanLineRect;
+  };
     self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(cancel)];
+  [self updateFlashButton];
 }
 
 - (void)viewDidAppear:(BOOL)animated {
@@ -90,7 +111,7 @@
 - (BOOL)isFlashOn {
     AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
     if (device) {
-        return device.torchMode == AVCaptureFlashModeOn || AVCaptureTorchModeOn;
+        return device.torchMode == AVCaptureFlashModeOn || device.torchMode == AVCaptureTorchModeOn;
     }
     return NO;
 }

ios/Classes/ScannerOverlay.h

@@ -0,0 +1,8 @@
+#import <UIKit/UIKit.h>
+
+@interface ScannerOverlay : UIView
+  @property(nonatomic) CGRect scanLineRect;
+  
+  - (void) startAnimating;
+  - (void) stopAnimating;
+@end

ios/Classes/ScannerOverlay.m

@@ -0,0 +1,101 @@
+#import "ScannerOverlay.h"
+
+@interface ScannerOverlay()
+  @property(nonatomic, retain) UIView *line;
+@end
+
+@implementation ScannerOverlay
+  
+  - (instancetype)initWithFrame:(CGRect)frame
+  {
+    self = [super initWithFrame:frame];
+    if (self) {
+      _line = [[UIView alloc] init];
+      _line.backgroundColor = UIColor.redColor;
+      _line.translatesAutoresizingMaskIntoConstraints = NO;
+      [self addSubview:_line];
+    }
+    return self;
+  }
+
+- (void)drawRect:(CGRect)rect {
+  CGContextRef context = UIGraphicsGetCurrentContext();
+  
+  UIColor * overlayColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.55];
+  UIColor *scanLineColor = UIColor.redColor;
+  
+  CGContextSetFillColorWithColor(context, overlayColor.CGColor);
+  CGContextFillRect(context, self.bounds);
+  
+  // make a hole for the scanner
+  CGRect holeRect = [self scanRect];
+  CGRect holeRectIntersection = CGRectIntersection( holeRect, rect );
+  [[UIColor clearColor] setFill];
+  UIRectFill(holeRectIntersection);
+  
+  // draw a horizontal line over the middle
+  CGRect lineRect = [self scanLineRect];
+  _line.frame = lineRect;
+  
+  // drw the green corners
+  CGFloat cornerSize = 30;
+  UIBezierPath *path = [UIBezierPath bezierPath];
+  //top left corner
+  [path moveToPoint:CGPointMake(holeRect.origin.x, holeRect.origin.y + cornerSize)];
+  [path addLineToPoint:CGPointMake(holeRect.origin.x, holeRect.origin.y)];
+  [path addLineToPoint:CGPointMake(holeRect.origin.x + cornerSize, holeRect.origin.y)];
+  
+  //top right corner
+  CGFloat rightHoleX = holeRect.origin.x + holeRect.size.width;
+  [path moveToPoint:CGPointMake(rightHoleX - cornerSize, holeRect.origin.y)];
+  [path addLineToPoint:CGPointMake(rightHoleX, holeRect.origin.y)];
+  [path addLineToPoint:CGPointMake(rightHoleX, holeRect.origin.y + cornerSize)];
+  
+  // bottom right corner
+  CGFloat bottomHoleY = holeRect.origin.y + holeRect.size.height;
+  [path moveToPoint:CGPointMake(rightHoleX, bottomHoleY - cornerSize)];
+  [path addLineToPoint:CGPointMake(rightHoleX, bottomHoleY)];
+  [path addLineToPoint:CGPointMake(rightHoleX - cornerSize, bottomHoleY)];
+  
+  // bottom left corner
+  [path moveToPoint:CGPointMake(holeRect.origin.x + cornerSize, bottomHoleY)];
+  [path addLineToPoint:CGPointMake(holeRect.origin.x, bottomHoleY)];
+  [path addLineToPoint:CGPointMake(holeRect.origin.x, bottomHoleY - cornerSize)];
+  
+  path.lineWidth = 2;
+  [[UIColor greenColor] setStroke];
+  [path stroke];
+  
+}
+  
+  - (void)startAnimating {
+    CABasicAnimation *flash = [CABasicAnimation animationWithKeyPath:@"opacity"];
+    flash.fromValue = [NSNumber numberWithFloat:0.0];
+    flash.toValue = [NSNumber numberWithFloat:1.0];
+    flash.duration = 0.25;
+    flash.autoreverses = YES;
+    flash.repeatCount = HUGE_VALF;
+    [_line.layer addAnimation:flash forKey:@"flashAnimation"];
+  }
+  
+  - (void)stopAnimating {
+    [self.layer removeAnimationForKey:@"flashAnimation"];
+  }
+  
+  - (CGRect)scanRect {
+    CGRect rect = self.frame;
+    CGFloat heightMultiplier = 3.0/4.0; // 4:3 aspect ratio
+    CGFloat scanRectWidth = rect.size.width * 0.8f;
+    CGFloat scanRectHeight = scanRectWidth * heightMultiplier;
+    CGFloat scanRectOriginX = (rect.size.width / 2) - (scanRectWidth / 2);
+    CGFloat scanRectOriginY = (rect.size.height / 2) - (scanRectHeight / 2);
+    return CGRectMake(scanRectOriginX, scanRectOriginY, scanRectWidth, scanRectHeight);
+  }
+  
+  - (CGRect)scanLineRect {
+    CGRect scanRect = [self scanRect];
+    CGRect rect = self.frame;
+    return CGRectMake(scanRect.origin.x, rect.size.height / 2, scanRect.size.width, 1);
+  }
+
+@end