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POios: UIButton title format delay
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  1. POios: UIButton title format delay
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    copied!<p>I've got some buttons where I left align and line wrap the title text. </p> <p>When I run the app, there is a delay from where the text is unformatted:</p> <p><a href="http://imageshack.us/a/img28/1958/preformat.jpg" rel="nofollow noreferrer">pre-format text http://imageshack.us/a/img28/1958/preformat.jpg</a></p> <p>To when the alignment and wrapping take effect:</p> <p><a href="http://imageshack.us/a/img821/6118/postformat.jpg" rel="nofollow noreferrer">post-format text http://imageshack.us/a/img821/6118/postformat.jpg</a></p> <p>On the simulator the delay is quite noticeable (~ 1 second), on my mate's iPhone 5 the delay is much smaller but still noticeable. </p> <p>What causes this delay? Can I get around this delay?</p> <p>Thanks in advance!</p> <hr> <p><strong>EDIT</strong><br><br> In my viewDidLoad method I create 10 buttons:</p> <pre><code>for (int i = 1; i &lt;= STEP_NUMBER; ++i) [self createStepButtion:i isIphone:isIphone isRetina:isRetina]; </code></pre> <p>In createStepButton, the relevant code is below:</p> <pre><code>UIButton * b = [UIButton buttonWithType:UIButtonTypeCustom]; // Listener [b addTarget:self action:@selector(goToStep:) forControlEvents:UIControlEventTouchUpInside]; [self.scrollView addSubview:b]; // Set button size. CGFloat width = self.scrollView.frame.size.width; // CGRectMake(x, y, width, height) int y = stepNum * margin + (stepNum - 1) * buttonHeight; int buttonWidth = width - margin * 2; b.frame = CGRectMake(margin, y, buttonWidth, buttonHeight); b.layer.cornerRadius = cornerRadius; b.clipsToBounds = YES; b.showsTouchWhenHighlighted = YES; // Image [b setImage:img forState:UIControlStateNormal]; b.imageEdgeInsets = [self makeImageInsets:buttonWidth]; // Text [b setTitleEdgeInsets:UIEdgeInsetsMake(0, titleLeftMargin, 0, titleRightMargin)]; b.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft; b.titleLabel.lineBreakMode = UILineBreakModeWordWrap; [b setTitle:[NSString stringWithFormat:@"%i - %s", stepNum, STEP_NAMES[stepNum - 1]]forState:UIControlStateNormal]; [b setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; b.titleLabel.font = [UIFont systemFontOfSize:fontSize]; // Background [b setBackgroundColor:[UIColor whiteColor]]; // The step number this button represents. b.tag = stepNum; </code></pre>
 

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