Phonegap-plugin-barcodescanner: Feature: Flashlight option (iOS)?

[uofmmike]

I've had some luck flicking the flashlight on in JS before launching the barcode scanner, and I've seen great results, is there a way we can add a button on the bottom left side to toggle the flashlight on/off from native code?

Looks like adding in functions from @EddyVerbruggen 's file would do the trick:

https://github.com/EddyVerbruggen/Flashlight-PhoneGap-Plugin/blob/master/src/ios/Flashlight.m

- (void)switchOn:(CDVInvokedUrlCommand*)command {
    CDVPluginResult* pluginResult;
    if ([self deviceHasFlashlight]) {
        AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
        [device lockForConfiguration:nil];
        [device setTorchMode:AVCaptureTorchModeOn];
        [device setFlashMode:AVCaptureFlashModeOn];
        [device unlockForConfiguration];
        pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
    } else {
        pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsString:@"Device is not capable of using the flashlight. Please test with flashlight.available()"];
    }
    [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
}

- (void)switchOff:(CDVInvokedUrlCommand*)command {
    CDVPluginResult* pluginResult;
    if ([self deviceHasFlashlight]) {
        AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
        [device lockForConfiguration:nil];
        [device setTorchMode:AVCaptureTorchModeOff];
        [device setFlashMode:AVCaptureFlashModeOff];
        [device unlockForConfiguration];
        pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
    } else {
        pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsString:@"Device is not capable of using the flashlight. Please test with flashlight.available()"];
    }
    [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
}

-(BOOL)deviceHasFlashlight {
    if (NSClassFromString(@"AVCaptureDevice")) {
        AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
        return [device hasTorch] && [device hasFlash];
    }
    return false;
}

[Hirbod]

+1

[simonpapworth6742]

+1

[lordgreg]

+1

(until then, I'll use https://github.com/tjwoon/csZBar)

[lyurko]

+1

[vladpke]

+1

[EddyVerbruggen]

Landed in 6.0.4 on both iOS and Android. Just pass in showTorchButton : true as an option of the scan function.

[douglasevaristo]

"Landed in 6.0.4 on both iOS and Android. Just pass in showTorchButton : true as an option of the scan function." This don't work anymore 👎

[EddyVerbruggen]

@douglasevaristo Instead of the 😕 and 👎 can you please share what platform you're using, what problem you have exactly, how you're using the plugin, and how you're building it?

[kmukku]

Hi. I can confirm that the torch button is not showing up. Flip button does show up.
I'm using ionic lab + ionic view to debug the app on iPhone 7 10.2.1 (14D27).

[jcesarmobile]

ionic view is an app that might not have latest version of the plugin, run your app instead of using ionic view

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