Button to activate flash

Adding button to activate/deactivate flash during the capturing the phase.

ios/CsZBar.h

@@ -1,9 +1,14 @@
 #import <Cordova/CDV.h>
 
 #import "ZBarSDK.h"
+#import <UIKit/UIKit.h>
 
 @interface CsZBar : CDVPlugin <ZBarReaderDelegate>
 
 - (void)scan: (CDVInvokedUrlCommand*)command;
+- (void)toggleflash;
+
+
+
 
 @end

ios/CsZBar.m

@@ -1,4 +1,5 @@
 #import "CsZBar.h"
+#import <AVFoundation/AVFoundation.h>
 #import "AlmaZBarReaderViewController.h"
 
 #pragma mark - State
@@ -7,6 +8,7 @@
 @property bool scanInProgress;
 @property NSString *scanCallbackId;
 @property AlmaZBarReaderViewController *scanReader;
+
 @end
 
 
@@ -25,12 +27,30 @@
 {
     self.scanInProgress = NO;
 }
+- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
+    return;
+}
 
+- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
+{
+    return YES; //(interfaceOrientation == UIInterfaceOrientationPortrait);
+}
+/*
+- (void)viewDidLoad {
+    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
+    [button setTitle:@"Turn on Flash" forState:UIControlStateNormal];
+    [button sizeToFit];
+    // Set a new (x,y) point for the button's center
+    button.center = CGPointMake(320/2, 60);
+    [button addTarget:self action:@selector(flashOn) forControlEvents:UIControlEventTouchUpInside];
+    [self.viewController parentViewController:button];
+}*/
 
 #pragma mark - Plugin API
 
 - (void)scan: (CDVInvokedUrlCommand*)command;
 {
+
     if(self.scanInProgress) {
         [self.commandDelegate
          sendPluginResult: [CDVPluginResult
@@ -53,16 +73,24 @@
             // as not all devices will have a rear-facing camera.
             self.scanReader.cameraDevice = UIImagePickerControllerCameraDeviceFront;
         }
+        self.scanReader.cameraFlashMode = UIImagePickerControllerCameraFlashModeOn;
+
         NSString *flash = [params objectForKey:@"flash"];
-        if([flash isEqualToString:@"on"]) {
+       if([flash isEqualToString:@"on"]) {
             self.scanReader.cameraFlashMode = UIImagePickerControllerCameraFlashModeOn;
         } else if([flash isEqualToString:@"off"]) {
             self.scanReader.cameraFlashMode = UIImagePickerControllerCameraFlashModeOff;
+        }else if([flash isEqualToString:@"auto"]) {
+             self.scanReader.cameraFlashMode = UIImagePickerControllerCameraFlashModeAuto;
         }
 
         // Hack to hide the bottom bar's Info button... originally based on http://stackoverflow.com/a/16353530
         UIView *infoButton = [[[[[self.scanReader.view.subviews objectAtIndex:2] subviews] objectAtIndex:0] subviews] objectAtIndex:3];
         [infoButton setHidden:YES];
+        // Add an action in current code file (i.e. target)
+      //  [infoButton addTarget: action:@selector(buttonPressed) forControlEvents:UIControlEventTouchUpInside];
+
+        //UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem]; [button setTitle:@"Press Me" forState:UIControlStateNormal]; [button sizeToFit]; [self.view addSubview:button];
 
         BOOL drawSight = [params objectForKey:@"drawSight"] ? [[params objectForKey:@"drawSight"] boolValue] : true;
         if(drawSight){
@@ -70,12 +98,12 @@
             CGFloat screenWidth = screenRect.size.width;
             CGFloat screenHeight = screenRect.size.height;
             CGFloat dim = screenWidth < screenHeight ? screenWidth / 1.1 : screenHeight / 1.1;
-            UIView *polygonView = [[UIView alloc] initWithFrame: CGRectMake ( (screenWidth/2) - (dim/2), (screenHeight/2) - (dim/2), dim, dim)];
+            UIView *polygonView = [[UIView alloc] initWithFrame: CGRectMake  ( (screenWidth/2) - (dim/2), (screenHeight/2) - (dim/2), dim, dim)];
             //polygonView.center = self.scanReader.view.center;
             //polygonView.layer.borderColor = [UIColor greenColor].CGColor;
             //polygonView.layer.borderWidth = 3.0f;
 
-            UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake(dim / 2, 0, 1, dim)];
+            UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake(0,dim / 2, dim, 1)];
             lineView.backgroundColor = [UIColor redColor];
             [polygonView addSubview:lineView];
 
@@ -87,6 +115,23 @@
     }
 }
 
+- (void)toggleflash{
+    AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
+    [device lockForConfiguration:nil];
+    if (device.torchAvailable == 1) {
+        if (device.torchMode == 0) {
+            [device setTorchMode:AVCaptureTorchModeOn];
+            [device setFlashMode:AVCaptureFlashModeOn];
+            
+        }else{
+            [device setTorchMode:AVCaptureTorchModeOff];
+            [device setFlashMode:AVCaptureFlashModeOff];
+        }
+
+    }
+        [device unlockForConfiguration];
+
+}
 
 #pragma mark - Helpers
 
@@ -98,6 +143,10 @@
 
 #pragma mark - ZBarReaderDelegate
 
+- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo {
+    return;
+}
+
 - (void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary*)info
 {
     if ([self.scanReader isBeingDismissed]) { return; }