Presents values in a custom gauge-style meter view with delightful animations
It should be easy to fill a shape with a color, to visually reflect a percentage.
There is plenty of examples where it can be useful:
- simple progress bar view
- stars rating view
- emotion view
- trend value view
Instead of adding the source files directly to your project, you may want to consider using CocoaPods to manage your dependencies. Follow the instructions on the CocoaPods site to install the gem, and specify DPMeterView as a dependency in your
pod 'DPMeterView', '0.0.1'
Example ! It contains everything you need to begin with
#import "DPMeterView.h" #import "UIBezierPath+BasicShapes.h" DPMeterView *fiveStarsShape = [[DPMeterView alloc] initWithFrame:CGRectMake(0, 0, 200, 40)]; [fiveStarsShape setMeterType:DPMeterTypeLinearHorizontal]; [fiveStarsShape setShape:[UIBezierPath stars:5 shapeInFrame:fiveStarsShape.bounds].CGPath];
[fiveStarsShape setProgress:0.6 animated:YES];
And a nice animation will update the view.
In the example above I'm just using a
UIBezierPath that is included in the category
UIBezierPath+BasicShapes. Feel free to fork the project and add other shapes you think it'd be great to have.
You can use any shape you want, the class
DPMeterView uses the
CGPath as a mask.
to try this feature you need to run the
Exampleproject on a device because the simulator doesn't provide
Minor known issues
yawobtained from the
CoreMotionacceleration quaternion is restrained to the interval
[-PI/2, PI/2], because of the definition of
arcsinused to compute it. It would be even better if we find a way to extend it to the complete interval
[-PI, PI], but I'm not a "quaternion master" ^^
- There will be some boudary issues with gradients that have an oriented angle other that a vertical or an horizontal one. Especially, a
DPMeterViewshape can be entirely filled whereas it is not at a 100% progression, depends on the shape…
Roadmap / Evolutions
- Have a
progressTintColorthat can evolve with the
progressvalue, like in a heat map scale.
- Use an image for the mask instead of a CGPath, but I don't know how to achieve that.
- I'd like to add a little utility that enables developers to load shapes from a
.svgfile into a
UIBezierPathdirectly, avoiding the burden of creating a UIBezierPath by hand. (the current work around is to use the great PaintCode application)
DPMeterView is available under the MIT license. See the LICENSE file for more info.