WMGaugeView

WMGaugeView is a simple gauge like view that provide customizable visualizations for iOS applications.

Requirements

• Xcode 5 or higher
• Apple LLVM compiler
• iOS 7.0 or higher
• ARC

Installation

CocoaPods

The recommended approach for installating WMGaugeView is via the CocoaPods package manager, as it provides flexible dependency management and dead simple installation. For best results, it is recommended that you install via CocoaPods >= 0.28.0 using Git >= 1.8.0 installed via Homebrew.

Install CocoaPods if not already available:

$ [sudo] gem install cocoapods
$ pod setup

Change to the directory of your Xcode project:

$ cd /path/to/MyProject
$ touch Podfile
$ edit Podfile

Edit your Podfile and add WMGaugeView:

platform :ios, '8.0'
pod 'WMGaugeView'

Install into your Xcode project:

$ pod install

Open your project in Xcode from the .xcworkspace file (not the usual project file)

$ open MyProject.xcworkspace

Please note that if your installation fails, it may be because you are installing with a version of Git lower than CocoaPods is expecting. Please ensure that you are running Git >= 1.8.0 by executing git --version. You can get a full picture of the installation details by executing pod install --verbose.

Manual Install

All you need to do is drop WMGaugeView files into your project, and add #include "WMGaugeView.h" to the top of classes that will use it.

Example Usage

gaugeView.style = [WMGaugeViewStyleFlatThin new];
gaugeView.maxValue = 100.0;
gaugeView.scaleDivisions = 10;
gaugeView.scaleSubdivisions = 5;
gaugeView.scaleStartAngle = 30;
gaugeView.scaleEndAngle = 280;
gaugeView.showScaleShadow = NO;
gaugeView.scaleFont = [UIFont fontWithName:@"AvenirNext-UltraLight" size:0.065];
gaugeView.scalesubdivisionsaligment = WMGaugeViewSubdivisionsAlignmentCenter;
gaugeView.scaleSubdivisionsWidth = 0.002;
gaugeView.scaleSubdivisionsLength = 0.04;
gaugeView.scaleDivisionsWidth = 0.007;
gaugeView.scaleDivisionsLength = 0.07;

[gaugeView setValue:56.2 animated:YES duration:1.6 completion:^(BOOL finished) {
  NSLog(@"gaugeView animation complete");
}];

Customization

You can customize the following properties of WMGaugeView:

@property (nonatomic, readwrite, assign) bool showInnerBackground;
@property (nonatomic, readwrite, assign) bool showInnerRim;
@property (nonatomic, readwrite, assign) CGFloat innerRimWidth;
@property (nonatomic, readwrite, assign) CGFloat innerRimBorderWidth;
@property (nonatomic, readwrite, assign) CGFloat scalePosition;
@property (nonatomic, readwrite, assign) CGFloat scaleStartAngle;
@property (nonatomic, readwrite, assign) CGFloat scaleEndAngle;
@property (nonatomic, readwrite, assign) CGFloat scaleDivisions;
@property (nonatomic, readwrite, assign) CGFloat scaleSubdivisions;
@property (nonatomic, readwrite, assign) bool showScaleShadow;
@property (nonatomic, readwrite, assign) WMGaugeViewSubdivisionsAlignment scalesubdivisionsaligment;
@property (nonatomic, readwrite, assign) CGFloat scaleDivisionsLength;
@property (nonatomic, readwrite, assign) CGFloat scaleDivisionsWidth;
@property (nonatomic, readwrite, assign) CGFloat scaleSubdivisionsLength;
@property (nonatomic, readwrite, assign) CGFloat scaleSubdivisionsWidth;
@property (nonatomic, readwrite, strong) UIColor *scaleDivisionColor;
@property (nonatomic, readwrite, strong) UIColor *scaleSubDivisionColor;
@property (nonatomic, readwrite, strong) UIFont *scaleFont;
@property (nonatomic, readwrite, assign) float value;
@property (nonatomic, readwrite, assign) float minValue;
@property (nonatomic, readwrite, assign) float maxValue;
@property (nonatomic, readwrite, assign) bool showRangeLabels;
@property (nonatomic, readwrite, assign) CGFloat rangeLabelsWidth;
@property (nonatomic, readwrite, strong) UIFont *rangeLabelsFont;
@property (nonatomic, readwrite, strong) UIColor *rangeLabelsFontColor;
@property (nonatomic, readwrite, assign) CGFloat rangeLabelsFontKerning;
@property (nonatomic, readwrite, strong) NSArray *rangeValues;
@property (nonatomic, readwrite, strong) NSArray *rangeColors;
@property (nonatomic, readwrite, strong) NSArray *rangeLabels;
@property (nonatomic, readwrite, strong) UIColor *unitOfMeasurementColor;
@property (nonatomic, readwrite, assign) CGFloat unitOfMeasurementVerticalOffset;
@property (nonatomic, readwrite, strong) UIFont *unitOfMeasurementFont;
@property (nonatomic, readwrite, strong) NSString *unitOfMeasurement;
@property (nonatomic, readwrite, assign) bool showUnitOfMeasurement;

Drawing is handled by style protocols in order to provide easy customization of background and needle :

@protocol WMGaugeViewStyle <NSObject>
@required
- (void)drawNeedleOnLayer:(CALayer*)layer inRect:(CGRect)rect;
- (void)drawFaceWithContext:(CGContextRef)context inRect:(CGRect)rect;
- (BOOL)needleLayer:(CALayer*)layer willMoveAnimated:(BOOL)animated duration:(NSTimeInterval)duration animation:(CAKeyframeAnimation*)animation;

@end

Authors

• William Markezana (@Will_tm)

License

WMGaugeView is available under the MIT license.

Copyright © 2014 William Markezana.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.