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POTime taken to load a uiscrollview
 

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  1. POTime taken to load a uiscrollview
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    <p>I am trying to find the time taken for a uiscrollview to be displayed on a screen. I have a uibutton which when clicked creates a label with a very long text and adds it to a scrollview. Then the scrollview is added as a subview to self.view. I need to know the time taken for the scrollview to be displayed on the screen. Please help. Thanks in advance. Code below</p> <pre><code>- (IBAction)clickeMe:(id)sender { self.start=[NSDate date]; NSString *text="a very long text"; NSMutableAttributedString *attributedText = [[NSMutableAttributedString alloc] initWithString:text]; NSRange range1 = NSMakeRange(100, 300); [attributedText setAttributes:@{NSForegroundColorAttributeName:[UIColor redColor]} range:range1]; UILabel *label1=[[UILabel alloc]initWithFrame:CGRectMake(10, 10, 700, 1000)]; [label1 setAttributedText:attributedText]; [label1 setNumberOfLines:0]; [label1 sizeToFit]; scrollviewtest *scrollview=[[scrollviewtest alloc]init]; scrollview.frame=CGRectMake(10, 50, 700, 1000); CGSize maxSize = CGSizeMake(label1.frame.size.width, CGFLOAT_MAX); CGSize labelSize = [label1 sizeThatFits:maxSize]; [scrollview addSubview:label1]; scrollview.contentSize = CGSizeMake(700, labelSize.height); [self.view addSubview:scrollview]; [self performSelector:@selector(viewLoaded) withObject:nil]; } -(void)viewLoaded { NSLog(@"[viewloaded]"); NSTimeInterval timeInterval = [self.start timeIntervalSinceNow]; NSLog(@"time taken is %f",fabs(timeInterval)); } </code></pre> <p>The problem with the above code is that viewLoaded is actually getting called before the scrollview appears on the screen.</p>
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    1. USNaveen Ramanathan
    1. USNaveen Ramanathan
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    1. This table or related slice is empty.
    1. COcode please . . .
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      1. POTime taken to load a uiscrollview
      1. USShaik Riyaz
    2. COTry it out with some code and then we can help you out much better.
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      1. USmAc
    3. CODo you want to know the time taken for creating that long label?
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      1. USjailani
 

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