Ravi Shankar

Tag: Apple

  • How to hide/unhide slides in Keynote

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    Ravi Shankar
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    In this short tutorial, we will be covering the steps required to hide or unhide slides in a Keynote presentation. This tip is quite useful when you want to hide certain slides from your standard presentation depending upon audience. Hide Slides in Keynote Step 1: Launch the Keynote app with the presentation. Step 2: Navigate…

  • How to change bluetooth device name of iPhone/iPad/Mac

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    Ravi Shankar
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    Change bluetooth name for iPhone, iPad and Macbook Pro. In this tutorial we are going to cover the steps required to change the device name that appears while discovering bluetooth enabled Apple devices. For example when you are trying to pair iPhone with MacBookPro, the Set up Bluetooth Device screen on Macbook Pro would display…

  • How to change page scaling in Xcode

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    Ravi Shankar
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    Xcode provides option to increase or decrease the page scaling. This page scaling option is available as part of the Page Setup. This feature is quite useful when you want reduce the number of pages used for printing any Objective-C code. The default page scale is set to 100% and you can change this by…

  • What is Delegation in iOS ?

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    Ravi Shankar
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    Delegation is one of the commonly used pattern in iOS. This is used tell an object to act on behalf of another. Refer to Apple documentation for detailed information on delegate pattern. Let us see this with an example program that uses UITextFieldDelegate. This is a SingleView Project with one UITextField control. #import “ViewController.h” @interface…

  • Different ways to connect IBAction to UIButton

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    Ravi Shankar
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    In this tutorial, we are going to see the different ways for connecting IBAction to UIButton. Let see this with an example that displays an alert message on the touch event of UiButton. Method 1 (Assistant Editor): Step 1: Drag and drop Round Rect Button from the Objects library on to Interface builder. Step 2:…

  • How to add YouTube video to Word 2011.

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    Ravi Shankar
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    In this tutorial we are going to see the steps required for adding videos from Youtube in Word 2011 for Mac. In Office 2011 you can not directly embed YouTube video URL. If you want to insert videos then you need to the following. first download the video using third party software Insert the downloaded…

  • Reduce the time taken for searching iOS documentation using Xcode

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    Ravi Shankar
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    This tip is for iOS developers who want to reduce the time taken while searching iOS documentation using Xcode. Documentation under the Xcode organiser window by default shows information on OS X as well. If you are not a Mac developer then you can turn off the documentation related with OS X. Step 1: Launch…

  • Variables in Objective-C

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    Ravi Shankar
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    Objective-C also uses variables for storing data in memory like other programming languages. The variables are defined based on the type data type that will be stored. The general rule followed for naming variable are Use the camel case convention for variable i.e the first word in lowercase and second word in uppercase. For example…

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