Implement Bar code scanner in salesfore1 - salesforce

We have a requirement to develop functionality in salesforce1 so that we can scan the Barcode and store the value in Custom field .
We tried couple of approaches but it is not working . Please help If anyone has implemented something like this .
Thanks in advance !!

The following link has the implementation of scanning qr code in salesforce1.
http://bobbuzzard.blogspot.co.uk/2014/02/reading-qr-codes-in-salesforce1.html

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react-intl display currency symbol only

Working with react-intl and was looking to display a currency symbol only, after some text like USD$.
From what I have read so far in the documentation guessing FormattedNumber requires a default value.
Just wondering is it possible to display a currency symbol without a number value? such as $ (currently it returns NaN, due to missing number value)
Wondering has anyone run into this kind of issue previously?
Guessing there must be a simple solution.
In the meantime will keep looking for alternative solutions.
Any thought greatly appreciated.
Wasn't able to find a solution with react-intl.
So created simple helper to do the job.
Works ok. :)

Can we use gauge/gage in Ionic ? (Cordova)

This is my first post here, so I'm sorry if I'm not in the good section.
My "simple" question is, can we add a gage/gauge (I don't now the exact english spelling), in a Ionic project ?
A thing like that:
https://www.youtube.com/watch?v=w2qrYL0Le24
Or an other exemple:
http://crisbeto.github.io/angular-svg-round-progressbar/
I already tried to insert gauge like that in my project but the gauge never appears, so please, can you help me ?
(The goal is to show to an user a speed for exemple or the batterie life of his smartphone, any importance, juste a jauge who can be incremented or decremented)
Can you explain me please how it works, for example via a Codepen or anything else. I had already tried to search response but I solve anything on that.
I'm french and I am sorry for my language, but thanks in advance for you'r help !
Thanks.
I was able to get this to work:
https://github.com/frapontillo/angular-gage
You must also have the JustGage library and Raphael. Take a look at the example to see it in action. I was able to even make it work in the http://creator.ionic.io app by adding the scripts of angular-gage, JustGage and Raphael (just add a js and paste in the scripts).

Define header, footer, navigation, main, etc in qooxdoo standalone application

Im taking my very first steps using qooxdoo, and I would like to create a layout having those areas to insert some widgets into them. Im trying to achieve something like this : http://w2ui.com/web/demo/layout
Im confused about wich widget is best to get it done.
Any help is really appreciated, thanks.
Never mind guys, I kept digging the manual/api I found something to get it done. Thanks anyway
check the example.
regards
Playground example

Apple Maps - Find destination/location - How to?

I'm still a noobie to app making, and i've been trying to read some of the documentary for the MapKit, but im still clueless on how to do this.
I have a textfield on TabBar2, and Apple Map on TabBar1.
How do i make the textfield on TabBar2, searchable for destinations like adresses ?
and then show the found destination, on the map on TabBar1 ?
I hope this made some sense.
Thanks in advance
One way to do it is to use MKLocalSearchClass which searches for key words and can be tricked to look for addresses as well. You need to incorporate MKLocalSearchHandler in your class in order to produce the results. You can then add the results in a map view. Apple has a sample code which works basically the same way. It creates a search based on keywords and shows the location of those keywords nearby the users location. For example coffee or movie or etc. the code can be changed to look for a address or anything else you want. Any how here is the link to the sample code, hope it guides you to the right direction.
Map Search Sample Code

Face detection code doesnt work

I am currently trying to find the face in a particular image.I am following
this website :
http://www.cognotics.com/opencv/servo_2007_series/part_2/index.html.
I am following the code in this page.But i dont seem to see the option/part
of the code to include my image[ am i supposed to change the argv[1] part in the code to my own image inorder to read my image]
Can someone guide me?
Or is there any better face detection code available?
Thanks
You are supposed to pass your picture as a command line argument.

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