Databases
StackOverflow2013
Postsdbo
PO
 

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    <p>Just call below method and pass either <code>UILabel</code> or <code>UITextView</code>:</p> <pre><code>-(NSInteger)getNumberOfLinesInLabelOrTextView:(id)obj { NSInteger lineCount = 0; if([obj isKindOfClass:[UILabel class]]) { UILabel *label = (UILabel *)obj; // This method is deprecated in iOS 7.0 or later // CGSize requiredSize = [label.text sizeWithFont:label.font constrainedToSize:label.frame.size lineBreakMode:label.lineBreakMode]; CGSize requiredSize = [label.text boundingRectWithSize:CGSizeMake(CGRectGetWidth(label.frame), CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:label.font} context:nil].size; int charSize = label.font.leading; int rHeight = requiredSize.height; lineCount = rHeight/charSize; } else if ([obj isKindOfClass:[UITextView class]]) { UITextView *textView = (UITextView *)obj; lineCount = textView.contentSize.height / textView.font.leading; } return lineCount; } </code></pre> <p><strong>Now call this method:-</strong></p> <pre><code>NSLog(@"%d",[self getNumberOfLinesInLabelOrTextView:label]); NSLog(@"%d",[self getNumberOfLinesInLabelOrTextView:textView]); </code></pre> <p><strong>UPDATED: SWIFT CODE</strong></p> <pre><code>func getNumberOfLinesInLabelOrTextView(obj:AnyObject) -&gt; NSInteger { var lineCount: NSInteger = 0 if (obj.isKindOfClass(UILabel)) { let label: UILabel = obj as! UILabel let requiredSize: CGSize = (label.text)!.boundingRectWithSize(CGSizeMake(CGRectGetWidth(label.frame), CGFloat.max), options: NSStringDrawingOptions.UsesLineFragmentOrigin, attributes: [NSFontAttributeName: label.font], context: nil).size let charSize: CGFloat = label.font.leading let rHeight: CGFloat = requiredSize.height lineCount = (NSInteger)(rHeight/charSize) } else if (obj.isKindOfClass(UITextView)){ let textView: UITextView = obj as! UITextView lineCount = (NSInteger)(textView.contentSize.height / textView.font.leading) } return lineCount } </code></pre> <p><strong>Now call this method:-</strong></p> <pre><code>println("%d \(self.getNumberOfLinesInLabelOrTextView(textView))") println("%d \(self.getNumberOfLinesInLabelOrTextView(label))") </code></pre> <p><strong>Note: <code>leading</code> - use lineHeight. does not return actual leading. will be formally deprecated in future.</strong></p>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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