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kalyanchakravarthy.net

Sniff HTTP traffic on iOS - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/sniff-http-traffic-on-ios.html

Sniff HTTP traffic on iOS. Sun 29 June 2014. On my way to reverse engineer the api's of a particular app, I stumbled upon a problem on how to sniff network traffic. The obvious choice was either to jailbreak or run a proxy server and use Charls Proxy to sniff. The later is a good solution, if if I wanted to inspect. Since I was only interested in HTTP Headers, I found the ideal solution -. Remote Virtual Interface Tool. Which remotely captures packets from any connected mobile device (read. Q = quiet mode.

kalyanchakravarthy.net

Accessing Objective-C properties internally - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/accessing-objective-c-properties-internally.html

Accessing Objective-C properties internally. Fri 13 June 2014. Inside an objective class, there are 2 ways to access any declared property. Although both the uses hypothetically have the similar effect, there are 3 distinct differences. Trigggers the setter, which is important if you are performing any additional operations or validations. This does not happen when accessing the ivar directly. Also triggers KVO Notifications. Which propertyName conveniently ignores. Key path changed - %@.

kalyanchakravarthy.net

Comparing NSDates from different timezones - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/compare-nsdate-different-timezone.html

Comparing NSDates from different timezones. Wed 30 July 2014. Comparing 2 NSDate's is trivial, unless they are from different timezone, in which case one of them should be converted to the other timezone and then compared. Here is a simple code snippet that I came up with. It gets the offset from GMT in seconds for both timezones and uses the delta to convert a date relative to the other timezone. Get time and time zone offset from GMT. Get timezone delta difference in seconds.

kalyanchakravarthy.net

Flask custom template loaders - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/flask-custom-template-loaders.html

Flask custom template loaders. Sun 09 November 2014. Flask is amazing. The templating system called. Packed with it is equally amazing. The default behaviour of flask. Is to look for template files specified in. Directory. Although this will work in most use-cases, sometimes you need additional control over this - for example if you have user specific templates or if you want to load templates from a database, dynamically. This can be accomplished, by initialising. With a custom Loader.

kalyanchakravarthy.net

Go-lang Notes - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/go-notes.html

Sat 27 June 2015. Sometimes its hard to believe that this is indeed a compiled language, mostly due to type inference. In most cases you do not need to specify type in declarative initialization unless you are just declaring. Var someInt int; / type required anotherInt := 23 / type not required. Type inference is only available inside functions and not in top level declarations. The designers state that it is by design to optimise for faster compilation. They have to be used for. Type TinyServer struct {}.

kalyanchakravarthy.net

Sketch Plugin to resize iOS app icon to all resolutions - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/sketch-plugin-to-resize-ios-app-icon-to-all-resolutions.html

Sketch Plugin to resize iOS app icon to all resolutions. Tue 14 April 2015. Most common use-case of designing an iOS App Icon, simply involves designing the main. And then resizing it to all other resolutions. Since the default template does not come with a smart symbol available across all artboards, you have to create one and copy it over and resize it manually. Since I am too lazy to do it, I wrote a sketch plugin in javascript. Create New From Template. Design in [email protected]. Copy the Layer item.

kalyanchakravarthy.net

List directories in python - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/list-directories-in-python.html

List directories in python. Thu 29 May 2014. Its pretty straight forward to list files, by using:. Listing directories especially only those in current level requires the use of os.walk. Kalyan ( [email protected]. I shoot pictures and build products. This blog is a means for documenting my learnings and experiences.

kalyanchakravarthy.net

Open home webserver to internet - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/open-home-webserver-to-internet.html

Open home webserver to internet. Sat 08 November 2014. There are several ways to open up your home webserver to the internet, the most popular one involves port forwarding. But it is not something that one can assume to be available in all situations. If you do have a server already, we can use it to create a tunnel. This essentially involes 2 steps. 1 create tunnel from home server to remote server. This creates a tunnel between home port and remote port x. 8080] = remote port. 5000] = local port.

kalyanchakravarthy.net

Text to speech on iOS - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/text-to-speech-on-ios.html

Text to speech on iOS. Mon 30 June 2014. Starting iOS7, the SDK contains a new set of APIs for performing text-to-speech related operations under the library. There are 3 components required for performing text-2-speech on iOS. This determines the speech synthesis voice and language. The default is English. For eg: Consider the russian letter. English voice pronounces it as. While the russian voice actually pronounces it as the alphabet. Here is the definition from the apple docs. The hiphen after each c...

kalyanchakravarthy.net

Using Attributed Strings on iOS - KalyanChakravarthy.net

http://kalyanchakravarthy.net/blog/using-nsattributedstring-on-ios.html

Using Attributed Strings on iOS. Tue 03 June 2014. Setting up Attributed string. Setting font, foreground color, etc on. For normal text is quite straight forward as all the attributes are set on the instance directly. For attributed text, all these properties have to be set explicitly on. Instance as none of the text attributes from UILabel are applied. Hello there human. Are you %@? Set global fontsize on the string. Compute the range of the string that needs a different font. Size and bounding box.