A component that simplifies the creation of animated Apple Watch style pie charts similar to the ones used within the Activity app.
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;
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:
Alternatively, you can simply drop in the classes from
Pod/Classes into your project.
TTWKPieChart is created by TouchTribe B.V. and is available under the MIT license. See the LICENSE file for more info.