iOS Development feature module-the input box moves as the keyboard positions

Don't say much nonsense, first directly on:

Familiarize yourself with the key key that will be used in the Cocoa framework:

Then directly on the demo source:

Before looking at the code, add that the text boxes in the demo and the gray view behind the text boxes are arranged through the autoresizing layout in the storyboard.

The above source download link: Http://pan.baidu.com/s/1jHXD7eQ Password: UQWW

In OC, you can modify the translation, scaling, and rotation angles of an object by using the Transform property.

Then use transform to make a slight optimization:

iOS Development feature module-the input box moves as the keyboard positions