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    <p>The following snippet is useful for drawing a center text string using an Annotation custom image as a reference:</p> <p>CustomAnnotation.h</p> <pre><code>@interface CustomAnnotation : MKAnnotationView [...] </code></pre> <p>CustomAnnotation.m</p> <pre><code>[...] - (void)drawRect:(CGRect)rect { ClusterAnnotation *associatedAnnotation = (CustomAnnotation *)self.annotation; if (associatedAnnotation != nil) { CGContextRef context = UIGraphicsGetCurrentContext(); NSString *imageName = @"custom_image.png"; CGRect contextRect = CGRectMake(0, 0, 42.0, 42.0); CGFloat fontSize = 14.0; [[UIImage imageNamed:imageName] drawInRect:contextRect]; NSInteger myIntegerValue = [associatedAnnotation.dataObject.myIntegerValue integerValue]; NSString *myStringText = [NSString stringWithFormat:@"%d", myIntegerValue]; UIFont *font = [UIFont fontWithName:@"Helvetica-Bold" size:fontSize]; CGSize fontWidth = [myStringText sizeWithFont:font]; CGFloat yOffset = (contextRect.size.height - fontWidth.height) / 2.0; CGFloat xOffset = (contextRect.size.width - fontWidth.width) / 2.0; CGPoint textPoint = CGPointMake(contextRect.origin.x + xOffset, contextRect.origin.y + yOffset); CGContextSetTextDrawingMode(context, kCGTextStroke); CGContextSetLineWidth(context, fontSize/10); CGContextSetStrokeColorWithColor(context, [[UIColor whiteColor] CGColor]); [myStringText drawAtPoint:textPoint withFont:font]; CGContextSetTextDrawingMode(context, kCGTextFill); CGContextSetFillColorWithColor(context, [[UIColor blackColor] CGColor]); [myStringText drawAtPoint:textPoint withFont:font]; } } </code></pre>
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    1. POHow to use NSString drawInRect to center text?
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    1. USjalopezsuarez
    1. USjalopezsuarez
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    1. COIt's not an iOS question.
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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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