Xcode and IOS9 new features

Xcode and IOS9

1. Xcode7 new Features

> can run its own app directly on the real machine, with an Apple account and no need to buy an Apple developer account.

> can be set to display a more detailed error message when a exc_bad_access error occurs.

Setting mode: Xcode->product->scheme->edit Scheme

Select "Run" on the Left

Right Select "Diagnostics (Diagnostics)"

In "Runtime Sanitization (runtime Cleanup)"

Tick "Enable address sanitizer"//For detailed handling of error on memory addresses

> Preview of the Visual interface (this is not a new feature of the Xcode7, prior to this)

To see how each view or Xib view is displayed on different devices under storyboard, use the Preview Assistant feature of the editor

Viewing mode: Select the storyboard or xib you want to view

Select "Assistant Mode" at the top right of the editor

Select Preview at the top of the right border in the middle area and select the view you want to view to show the display on your device, and at the bottom left of the box, click the + sign to add different devices to see the effects on different devices.

> Assets.xcassets can put resources such as pictures in this, before called "Images.xcassets".

App logo, static guide picture, and other image resources can be added here, and can be placed under the 2x,3x of different sizes of pictures to adapt to different device sizes

2. IOS9 new Features

> New View Class Uistackview, provides a streamlined display of a set of views on a single line or column. As shown in the following:

3. Other UI

> Date Time Picker uidatepicker

> List Selector Uipickerview

Xcode and IOS9 new features