iOS-UILabel的寬度自適應文字

來源:互聯網
上載者:User


UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0,0,0,0)];//這個frame是初設的,沒關係,後面還會重新設定其size。
[label setNumberOfLines:0];
NSString *s = @"abcdefghijklmn";
UIFont *font = [UIFont fontWithName:@"Arial" size:12];
CGSize size = CGSizeMake(320,2000);
CGSize labelsize = [s sizeWithFont:font constrainedToSize:size lineBreakMode:UILineBreakModeWordWrap];
[label setFrame:CGRectMake(0,0, labelsize.width, labelsize.height)];
[self.view addSubView:label];

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