UILabel extra spaces before and after text ios

问题

Label shows text perfectly in portrait mode.
It also works properly when device rotates from portrait to landscape or landscape to portrait.

But when i open app in landscape mode it shows extra spaces before and after the text.

I have used NumberOfLines = 0 and sizeToFit.
and also tried

CGSize aSize = [self.label sizeThatFits:CGSizeMake(self.label.frame.size.width, CGFLOAT_MAX)];
self.label.frame = CGRectMake(self.label.frame.origin.x, self.label.frame.origin.y, self.label.frame.size.width, aSize.height);

You can check image here: http://picpaste.com/Screen_Shot_2014-02-14_at_4.44.42_PM-7I55uWNF.png

回答1:

Add this code on your UIViewController

- (void)viewDidLayoutSubviews {
    [super viewDidLayoutSubviews];
    [myLabel sizeToFit];
    [self.view layoutIfNeeded];

    myLabel.preferredMaxLayoutWidth = myLabel.frame.size.width;
    [self.view layoutIfNeeded];
}

回答2:

Use Autosizing from storyboard OR

self.label.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleLeftMargin;

来源：https://stackoverflow.com/questions/21777620/uilabel-extra-spaces-before-and-after-text-ios