OS X Core Controls Tutorial: Part 2/2学习笔记

learn from: OS X Core Controls Tutorial: Part 2/2

OverView

In this part of tutorial,we” finish the application,and learn how to use the follwing controls:

• sliders
• Date Pickers
• Radio Buttons
• Check Boxes
• Image Views

NSSliders

Interface Builder has an object in the Object Library for sliders:

Two common tasts:

1. getting or setting current value;
2. getting and setting the high and low limits of the slider’s range.

@property int intValue;// ps-from: NSControl@property NSInteger integerValue;@property float floatValue;@property double doubleValue;// ps-to:NSControl@property double minValue;@property double maxValue;

set Continuous state:

demo

NSDatePicker

self.datePicker.date = [NSDate date];

NSMatrix

Radio Button: only a single button,within the same group,can be selected at one time.NSMatrix allows to group radio buttons in rows and columns.

In the Object Library: No Radio Group.

Check Boxes

check boxes are in fact the same as push buttons

self.yellCheck.state = NSOffState;

Image Views

Image Well