Latest 0.2.0
License MIT
Platforms ios 6.1, requires ARC

A component that simplifies the creation of animated Apple Watch style pie charts similar to the ones used within the Activity app.


Quick Start

To use with your WatchKit extension:

  • add a WKInterfaceImage into your storyboard exactly where you want the chart to appear (you can use a WKInterfaceGroup as well);

  • make sure its Mode is set to ‘Center’ and Width and Height to ‘Size To Fit Content’;

  • connect the image or a group with a corresponding property in your subclass of WKInterfaceController;

  • import TTWKPieChart.h;

  • create and configure a pie chart within your awakeWithContext: method, for example:

    // Create and configure the chart generator
    TTWKPieChart *pieChart = [[TTWKPieChart alloc] init];
    pieChart.radius = floorf([WKInterfaceDevice currentDevice].screenBounds.size.width * 0.45);
    pieChart.bandWidth = 14;
    // ...
    TTWKPieChartBand *band1 = [[TTWKPieChartBand alloc] init];
    band1.icon = [UIImage imageNamed:@"test-icon-1"];
    band1.caption = @"LOREM";
    band1.startColor = [UIColor colorWithRed:1.0000 green:0.0941 blue:0.0392 alpha:1.0];
    band1.endColor = [UIColor colorWithRed:1.0000 green:0.0275 blue:0.6392 alpha:1.0];
    band1.backgroundColor = [UIColor colorWithRed:0.1608 green:0.0314 blue:0.0667 alpha:1.0];
    band1.value = 0.86;
    // ...
    // Configure the text to display
    pieChart.largeText = [[NSAttributedString alloc]  initWithString:@"125"
    // Generate the animated image at 15 FPS, send it off to the device and begin animation
    _image = [pieChart animatedImageWithFrameRate:15];
    [self.chartImage setImage:_image];
    [self.chartImage startAnimatingWithImagesInRange:NSMakeRange(0, _image.images.count) duration:_image.duration repeatCount:1];

Please see the example project for a complete example.


TTWKPieChart is available through CocoaPods. To install
it, simply add the following line to your Podfile:

pod "TTWKPieChart"

Alternatively, you can simply drop in the classes from Pod/Classes into your project.

Author & License

TTWKPieChart is created by TouchTribe B.V. and is available under the MIT license. See the LICENSE file for more info.

Latest podspec

    "name": "TTWKPieChart",
    "version": "0.2.0",
    "summary": "Animated Apple Watch pie chart aka activity aka progress view.",
    "description": "                        A component that simplifies creating of animated Apple Watch style pie chartsn                        similar to the ones displayed by the Activity app.n",
    "homepage": "",
    "screenshots": "",
    "license": "MIT",
    "authors": {
        "TouchTribe B.V.": "[email protected]"
    "source": {
        "git": "",
        "tag": "0.2.0"
    "platforms": {
        "ios": "6.1"
    "requires_arc": true,
    "source_files": "Pod/Classes/**/*"

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