Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>You asked kind of the <a href="https://stackoverflow.com/questions/4767794/analog-clock-with-uiimages-for-hands">same question</a> and I said that Layers is much better... well this time I have written the hole program in a record time than less than three weeks ;). If you want to use images then get your images and set them inside <code>initWithFrame:</code></p> <p>Interface: ClockView.h</p> <pre><code>#import &lt;UIKit/UIKit.h&gt; #import &lt;QuartzCore/QuartzCore.h&gt; @interface ClockView : UIView { CALayer *containerLayer; CALayer *hourHand; CALayer *minHand; CALayer *secHand; NSTimer *timer; } - (void) start; - (void) stop; @end </code></pre> <p>Implementation: ClockView.m</p> <pre><code>#import "ClockView.h" @implementation ClockView float Degrees2Radians(float degrees) { return degrees * M_PI / 180; } - (void) start{ timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(updateClock) userInfo:nil repeats:YES]; } - (void) stop{ [timer invalidate]; timer = nil; } - (void) updateClock{ NSDateComponents *dateComponents = [[NSCalendar currentCalendar] components:(NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit) fromDate:[NSDate date]]; NSInteger seconds = [dateComponents second]; NSInteger minutes = [dateComponents minute]; NSInteger hours = [dateComponents hour]; //correction of inverted clock seconds += 30; seconds %=60; minutes += 30; minutes %=60; hours += 6; hours %=12; hourHand.transform = CATransform3DMakeRotation (Degrees2Radians(hours*360/12), 0, 0, 1); minHand.transform = CATransform3DMakeRotation (Degrees2Radians(minutes*360/60), 0, 0, 1); secHand.transform = CATransform3DMakeRotation (Degrees2Radians(seconds*360/60), 0, 0, 1); } - (void) layoutSubviews{ [super layoutSubviews]; containerLayer.frame = CGRectMake(0, 0, self.frame.size.width, self.frame.size.height); float length = MIN(self.frame.size.width, self.frame.size.height)/2; CGPoint c = CGPointMake(self.frame.size.width/2, self.frame.size.height/2); hourHand.position = minHand.position = secHand.position = c; hourHand.bounds = CGRectMake(0,0,10,length*0.5); minHand.bounds = CGRectMake(0,0,8,length*0.8); secHand.bounds = CGRectMake(0,0,4,length); hourHand.anchorPoint = CGPointMake(0.5,0.0); minHand.anchorPoint = CGPointMake(0.5,0.0); secHand.anchorPoint = CGPointMake(0.5,0.0); } - (id)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { containerLayer = [[CALayer layer] retain]; hourHand = [[CALayer layer] retain]; minHand = [[CALayer layer] retain]; secHand = [[CALayer layer] retain]; //paint your hands: simple colors hourHand.backgroundColor = [UIColor blackColor].CGColor; hourHand.cornerRadius = 3; minHand.backgroundColor = [UIColor grayColor].CGColor; secHand.backgroundColor = [UIColor whiteColor].CGColor; secHand.borderWidth = 1.0; secHand.borderColor = [UIColor grayColor].CGColor; //put images //hourHand.contents = (id)[UIImage imageNamed:@"hour.png"].CGImage; //minHand.contents = (id)[UIImage imageNamed:@"min.png"].CGImage; //secHand.contents = (id)[UIImage imageNamed:@"sec.png"].CGImage; [containerLayer addSublayer:hourHand]; [containerLayer addSublayer:minHand]; [containerLayer addSublayer:secHand]; [self.layer addSublayer:containerLayer]; self.layer.borderColor = [UIColor greenColor].CGColor; self.layer.borderWidth = 1.0; } return self; } - (void)dealloc { [self stop]; [hourHand release]; [minHand release]; [secHand release]; [containerLayer release]; [super dealloc]; } @end </code></pre> <p>Usage:</p> <pre><code>#import "ClockView.h" - (void)viewDidLoad { [super viewDidLoad]; ClockView *clockView = [[ClockView alloc] initWithFrame:CGRectMake(0,0,100,100)]; [self.view addSubview:clockView]; [clockView start]; [clockView release]; } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POObject angle based on current time
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USCommunity
    1. USnacho4d
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POObject angle based on current time
      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. VTAcceptedByOriginator
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWow. Thanks for all of that! Can I actually use this in an app? To me that feels a bit like cheating... :( Is there any way I can help you? I doubt it since you REALLY good...
      singulars
      1. PO
      1. USAndy B
    2. COIt works perfectly! It's upside down though... I'll try to fix that myself.
      singulars
      1. PO
      1. USAndy B
    3. COI have just corrected the code, now it shows the hour correctly ;)
      singulars
      1. PO
      1. USnacho4d
 

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