Learn Sketch 3 - Design+Code

Sketch is a vector design tool entirely focused on user interface design. It’s easy to pick up and costs a fraction of the price of Photoshop. Because of its simplicity, anyone with little to no training can learn Sketch. Sketch uses a single unit, styles only relevant to UI design, a built-in iPhone previewing tool called Mirror and Artboards, the most efficient way to design multiple screens. It's been 3 years since I’ve used Sketch exclusively and it has completely changed my workflow. Sketch was voted App of the Year by NetAwards, and most used Wireframing and User Interface Design tool on a survey responded by 4,000 designers, dethroning the almighty Photoshop. Introduction to Sketch Sketch is the ultimate tool for iOS, Android and Web design. Designing for Screens You only work with pixels, so you don't need to worry about other units (cm, ml, picas), color modes, pixels per inch, and all the extra weight that only matters to specific platforms. Customizing Your Toolbar Artboards

Revisiting the App Launch Sequence on iOS In June 2011, I blogged about the App Launch Sequence on iOS for the first time, illustrating what really happens under the hood between the launch of an iOS app and the application:didFinishLaunchingWithOptions: method. Since that time, Apple has revised the default launch sequence in their iOS app project templates, so it is time for an update to the original post. Flowchart of the default app launch sequence in iOS as of Xcode 4.2 for a non-storyboarded app. Let’s have a look at the changes to the main() function, which still is the starting point for our app. main() uses the new @autoreleasepool { } syntax introduced with LLVM 3.0, but that change doesn’t concern the app’s launch sequence. Looking at the documentation, we learn that the fourth argument to UIApplicationMain() specifies The name of the class from which the application delegate is instantiated. … Specify nil if you load the delegate object from your application’s main nib file.

AppCoda Community - Learn iOS Programming and Build iPhone App