Use of Transform in IOS development, iostransform

Use of Transform in IOS development, iostransform

Transform is used to change the position, size, or rotation angle of a view object.

Frame: it can also be a position/size.

Bounds: Size

Center: Location

The three most common methods

SomeView. transform = CGAffineTransformMakeRotation (angle) Rotation
-The angle is m_pi m_pi_2 m_pi_4 in radians... Positive is clockwise and negative is counter-clockwise
SomeView. transform = CGAffineTransformMakeTranslation (x, y) shifts x to y (positive and negative control directions)
SomeView. transform = CGAffineTransformMakeScale (x, y) x and y

The preceding parameters are based on the original location.

SomeView. transform = CGAffineTransformTranslation (someView. transform, x, y); translate based on your own transform

The other two are used in a similar way.