Dynamic acquisition of Uilabel bounds

Dynamic acquisition of Uilabel bounds

When you use Uilabel to store strings, you often need to get the long-width data for the label, which is a list of some common computational methods.

1. Get the width to get the length of the string without wrapping the row line

Cgsize labelbounds = [str sizewithfont:font constrainedtosize:cgsizemake (maxfloat, 30)];

Note: The width of size should be set to maxfloat if it is desired.

　　2. Gets the height that gets the actual height required for the string to wrap within the specified size (the width of the label is more than the line).

Cgsize labelbounds = [str sizewithfont:font constrainedtosize:cgsizemake (label.frame.size.width, Maxfloat) Linebreakmode:uilinebreakmodewordwrap];

Note: The height of size should be set to maxfloat if you want to get high.

Dynamic acquisition of Uilabel bounds