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POWhy doesn't my NSString fit into a frame created with the width of my NSString?
 

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  1. POWhy doesn't my NSString fit into a frame created with the width of my NSString?
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    <p>Here's how it seems to me the code I'm dealing with ought to be written:</p> <pre><code> if (!instructions) { instructions = [[UITextView alloc] init]; instructions.backgroundColor=[UIColor clearColor]; instructions.font = [UIFont fontWithName:@"Helvetica Neue" size:12]; instructions.editable=NO; instructions.text = @"\nFor millennia, the Japanese haiku has allowed great\nthinkers to express their ideas about the world in three\nlines of five, seven, and five syllables respectively."; //THIS IS THE RELEVANT LINE: NSString *t = @"thinkers to express their ideas about the world in three"; //Using this to set width since it's the longest line of the string. CGSize thisSize = [t sizeWithFont:[UIFont fontWithName:@"Helvetica Neue" size:12]]; float textWidth = thisSize.width; const int INSTRUCTIONS_HEIGHT=10; //I know this is an ugly hack. float textHeight = thisSize.height*INSTRUCTIONS_HEIGHT; instructions.frame = CGRectMake(screenWidth/2-textWidth/2, screenHeight/2-textHeight/2, textWidth, textHeight); } </code></pre> <p>But the output looks like this, with the line having to wrap around:</p> <p><img src="https://i.stack.imgur.com/ipXSM.png" alt="enter image description here"></p> <p>When I adjust the code to add a few characters to the line setting the width:</p> <pre><code> { instructions = [[UITextView alloc] init]; instructions.backgroundColor=[UIColor clearColor]; instructions.font = [UIFont fontWithName:@"Helvetica Neue" size:12]; instructions.editable=NO; instructions.text = @"\nFor millennia, the Japanese haiku has allowed great\nthinkers to express their ideas about the world in three\nlines of five, seven, and five syllables respectively."; //THIS IS THE LINE I CHANGED: NSString *t = @"thinkers to express their ideas about the world in three lin"; // CGSize thisSize = [t sizeWithFont:[UIFont fontWithName:@"Helvetica Neue" size:12]]; float textWidth = thisSize.width; const int INSTRUCTIONS_HEIGHT=6; //Since there's no wraparound here I could reduce this number. float textHeight = thisSize.height*INSTRUCTIONS_HEIGHT; instructions.frame = CGRectMake(screenWidth/2-textWidth/2, screenHeight/2-textHeight/2, textWidth, textHeight); } </code></pre> <p>the output looks like what I want:</p> <p><img src="https://i.stack.imgur.com/RkynI.png" alt="enter image description here"></p> <p>Why does the line "thinkers to express their ideas about the world in three" not fit into a text view set at the width of the line "thinkers to express their ideas about the world in three"?</p> <p>(Obviously I have some learning to do about ways to orient things on screen. I haven't figured out "center" yet, for example, which I suspect would solve a lot of my problems. But this is what I'm working with for now, and I'm curious.)</p>
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    1. USJoel Derfner
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      1. POWhy doesn't my NSString fit into a frame created with the width of my NSString?
      1. USsleepwalkerfx
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      1. VTUpMod
    1. COThere are margins that are not accounted for.
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      1. USzaph
 

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