IOS Study Notes 10-UILabel set automatic use of tall lines and line breaks

 

// Initialize the label

UILabel * label = [[UILabel alloc] initWithFrame: CGRectMake (0, 0, 0)];

// Set the number of automatic lines and line breaks

[Label setNumberOfLines: 0];

Label. lineBreakMode = UILineBreakModeWordWrap;

 

 

// Test string NSString * s = @ "this is a test !!! ";

UIFont * font = [UIFont fontWithName: @ "Arial" size: 12];

// Set the upper limit of a row

CGSize size = CGSizeMake (320,2000 );

// Calculate the actual frame size and convert the frame of the label to the actual size. CGSize labelsize = [s sizeWithFont: font constrainedToSize: size lineBreakMode: Regular]; [label setFrame: CGRectMake :( 0, 0, labelsize. width, labelsize. height)];