Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>You basically just need to construct a path that defines the area to be filled (e.g. using <code>CGPathAddArc</code>), clip the graphics context to that path using <code>CGContextClip</code> and then just draw your image.</p> <p>Here's an example of a <code>drawRect:</code> method you could use in a custom view:</p> <pre><code>- (void)drawRect:(CGRect)rect { CGContextRef ctx = UIGraphicsGetCurrentContext(); CGFloat progress = 0.7f; //This would be a property of your view CGFloat innerRadiusRatio = 0.5f; //Adjust as needed //Construct the path: CGMutablePathRef path = CGPathCreateMutable(); CGFloat startAngle = -M_PI_2; CGFloat endAngle = -M_PI_2 + MIN(1.0f, progress) * M_PI * 2; CGFloat outerRadius = CGRectGetWidth(self.bounds) * 0.5f - 1.0f; CGFloat innerRadius = outerRadius * innerRadiusRatio; CGPoint center = CGPointMake(CGRectGetMidX(self.bounds), CGRectGetMidY(self.bounds)); CGPathAddArc(path, NULL, center.x, center.y, innerRadius, startAngle, endAngle, false); CGPathAddArc(path, NULL, center.x, center.y, outerRadius, endAngle, startAngle, true); CGPathCloseSubpath(path); CGContextAddPath(ctx, path); CGPathRelease(path); //Draw the image, clipped to the path: CGContextSaveGState(ctx); CGContextClip(ctx); CGContextDrawImage(ctx, self.bounds, [[UIImage imageNamed:@"RadialProgressFill"] CGImage]); CGContextRestoreGState(ctx); } </code></pre> <p>To keep it simple, I've hard-coded a few things – you obviously need to add a property for <code>progress</code> and call <code>setNeedsDisplay</code> in the setter. This also assumes that you have an image named <code>RadialProgressFill</code> in your project.</p> <p>Here's an example of what that would roughly look like:</p> <p><img src="https://i.stack.imgur.com/JlEBF.png" alt="Screenshot"></p> <p>I hope you have a better-looking background image. ;)</p>
    singulars
    1. This table or related slice is empty.
    1. POUsing circular progress bar with masked image?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USomz
    1. USomz
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POUsing circular progress bar with masked image?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    1. COI hope there will be more and more people like you - this is much more than I expected! Thank you very much for your detailed answer - I have rewarded you :)
      singulars
      1. PO
      1. USDominik Hadl
    2. CO@DominikHadl How and where to cal this method - (void)drawRect:(CGRect)rect
      singulars
      1. PO
      1. USSudha Tiwari
    3. CO@omz it really helpful..:)
      singulars
      1. PO
      1. USSudha Tiwari
 

Querying!

 
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.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload