Hi，

`PieLayer *pieLayer = [[PieLayer alloc] init]; pieLayer.frame = CGRectMake(100, 100, 200, 200); pieLayer.maxRadius = 60; pieLayer.minRadius = 30; pieLayer.startAngle = 0; pieLayer.endAngle = 360; pieLayer.showTitles = ShowTitlesNever;

PieElement *elem1 = [PieElement pieElementWithValue:1 color:[self randomColor]];
PieElement *elem2 = [PieElement pieElementWithValue:3 color:[self randomColor]];

[pieLayer addValues:@[elem1] animated:NO];
[pieLayer addValues:@[elem2] animated:NO];

[self.view.layer addSublayer:pieLayer];`

This is not a problem！

But, Starting angle is not starting from pieLayer.startAngle = 0; , PieElement *elem1 = [PieElement pieElementWithValue:3 color:[self randomColor]];

What should I do？ Thanks！

Recently when we were using this awesome library we found that it'll be more convenient to know what's the exact pie element that is tapped being mapped with the input array index. That is if the the input values are in an array as below, float vals[] = {505.0,505.0,0.0,70.0,0.0}; then when the relative pie element is tapped there's no way to identify which pie element is mapped with the index of the above array elements. It gets worse when the there are identical values in the array as above. for example which 505.0 is the user tapped in the pie chart? is it the element at 0th index or at index 1.

For that reason I have added another overload init method that will map the array index as well.

• (instancetype)pieElementWithValue:(float)val indexValue:(NSInteger_)index color:(UIColor_)color;

Hope this may be convenient to others in their developments.

code in view did load

#import <MagicPieLayer.h>

PieLayer* pieLayer = [[PieLayer alloc] init]; pieLayer.frame = CGRectMake(0, 0, 200, 200); [self.view.layer addSublayer:pieLayer]; [pieLayer addValues:@[[PieElement pieElementWithValue:5.0 color:[UIColor redColor]], [PieElement pieElementWithValue:4.0 color:[UIColor blueColor]], [PieElement pieElementWithValue:7.0 color:[UIColor greenColor]]] animated:YES];

there was pie chart created at times but now totally I am not getting any pie chart.what is the issue here?

I found that there's swift version only for example 4. How can I have swift version for the whole project? Especially for example 2. Example 2 suits for my project. I don't like bridging. I do code in full swift.

I wanted to animate the max radius of a PieElement, without moving the center. So I added the property "maxRadius" to PieElement.

Check-out the example 2 to see the effect.

Cheers !

In PieElement.h you include Foundation.h while UIColor is used, which is part of UIKit.h . This can product problems when using MagicPie with Swift.

Can you replace

import <Foundation/Foundation.h>

with

import <UIKit/UIKit.h>

Thanks!

Hi Alexandr, thanks for your library and its really great. But I can't use the pieElemInPoint method to make one section of the pie to move like in your demo example 2.

here are my codes (in Swift):

import UIKit

class BlockViewController: UIViewController {

var pieLayer = PieLayer()

override func viewDidLoad() {
    super.viewDidLoad()

    self.view.backgroundColor = UIColor(patternImage: UIImage(named: "Background"))

    pieLayer.frame = CGRectMake(55, 120, 200, 200)
    pieLayer.maxRadius = 80
    pieLayer.minRadius = 20
    pieLayer.animationDuration = 1.5
    self.view.layer.addSublayer(pieLayer)

    var valuesToAdd : NSArray = [PieElement(value: 5, color: UIColor.redColor()), PieElement(value: 9, color: UIColor.blueColor())]

    pieLayer.addValues(valuesToAdd, animated: true)

    if pieLayer.self.respondsToSelector("setContentsScale:") {
        pieLayer.contentsScale = UIScreen.mainScreen().scale
    }

    let tap = UITapGestureRecognizer(target: self, action: Selector("handleTap:"))
    tap.numberOfTapsRequired = 1
    tap.numberOfTouchesRequired = 1
    self.view.addGestureRecognizer(tap)
}

func handleTap (tap : UITapGestureRecognizer) {

    if tap.state != .Ended {
        return
    }

    var pos : CGPoint = tap.locationInView(tap.view)
    var tappedElem : PieElement? = pieLayer.pieElemInPoint(pos)
    if !tappedElem { return }
    if tappedElem?.centrOffset > 0 {
        tappedElem = nil
        println("CALLED3")
        PieElement.animateChanges( {for elem : PieElement in self.pieLayer.values as [PieElement] {
            elem.centrOffset = tappedElem==elem ? 20 : 0
            }
        })
    }
}
}

I printed the value of pos, and it really has values. I printed the tappedElem, and it always returns nil. Any idea on fixing this issue? Thanks for anyone's help ;)

Change project architecture to include 64-bit and build, see warning:

Implicit conversion loses integer precision: 'long' to 'int'
Implicit conversion loses integer precision: 'NSUInteger' (aka 'unsigned long') to 'int'
Implicit conversion loses integer precision: 'NSInteger' (aka 'long') to 'int'
Implicit conversion loses integer precision: 'NSInteger' (aka 'long') to 'int'
Implicit conversion loses integer precision: 'NSUInteger' (aka 'unsigned long') to 'int'
Implicit conversion loses integer precision: 'NSUInteger' (aka 'unsigned long') to 'int'
Implicit conversion loses integer precision: 'NSInteger' (aka 'long') to 'int'
Values of type 'NSUInteger' should not be used as format arguments; add an explicit cast to 'unsigned long' instead
Values of type 'NSUInteger' should not be used as format arguments; add an explicit cast to 'unsigned long' instead
Values of type 'NSUInteger' should not be used as format arguments; add an explicit cast to 'unsigned long' instead
Values of type 'NSInteger' should not be used as format arguments; add an explicit cast to 'long' instead

I've found that when I add values by calling -(void)addValues:animated: with YES, my titles do not display.

I believe the issue is in the following lines:

- (void)insertValues:(NSArray *)array atIndexes:(NSArray *)indexes animated:(BOOL)animated
{
    ...
    if(!animated || ![self performDelayedAnimation]){
        for(PieElement* elem in array){
            elem.titleAlpha = 1.0;
        }
        [self removeAnimationForKey:_animationValuesKey];
        self.values = [NSArray arrayWithArray:newValues];
        return;
    }
    ...
}

It seems to me that the function should be setting elem.titleAlpha = 1.0 outside of the if statement (regardless of whether we're inserting values animated or not). Everything works with the following change:

- (void)insertValues:(NSArray *)array atIndexes:(NSArray *)indexes animated:(BOOL)animated
{
    ...
    for(PieElement* elem in array){
        elem.titleAlpha = 1.0;
    }
    if(!animated || ![self performDelayedAnimation]){
        [self removeAnimationForKey:_animationValuesKey];
        self.values = [NSArray arrayWithArray:newValues];
        return;
    }
    ...
}

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