123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296 |
- //
- // LineChart2ViewController.m
- // ChartsDemo
- //
- // Copyright 2015 Daniel Cohen Gindi & Philipp Jahoda
- // A port of MPAndroidChart for iOS
- // Licensed under Apache License 2.0
- //
- // https://github.com/danielgindi/Charts
- //
- #import "LineChart2ViewController.h"
- #import "ChartsDemo_iOS-Swift.h"
- @interface LineChart2ViewController () <ChartViewDelegate>
- @property (nonatomic, strong) IBOutlet LineChartView *chartView;
- @property (nonatomic, strong) IBOutlet UISlider *sliderX;
- @property (nonatomic, strong) IBOutlet UISlider *sliderY;
- @property (nonatomic, strong) IBOutlet UITextField *sliderTextX;
- @property (nonatomic, strong) IBOutlet UITextField *sliderTextY;
- @end
- @implementation LineChart2ViewController
- - (void)viewDidLoad
- {
- [super viewDidLoad];
-
- self.title = @"Line Chart 2";
-
- self.options = @[
- @{@"key": @"toggleValues", @"label": @"Toggle Values"},
- @{@"key": @"toggleFilled", @"label": @"Toggle Filled"},
- @{@"key": @"toggleCircles", @"label": @"Toggle Circles"},
- @{@"key": @"toggleCubic", @"label": @"Toggle Cubic"},
- @{@"key": @"toggleHorizontalCubic", @"label": @"Toggle Horizontal Cubic"},
- @{@"key": @"toggleStepped", @"label": @"Toggle Stepped"},
- @{@"key": @"toggleHighlight", @"label": @"Toggle Highlight"},
- @{@"key": @"animateX", @"label": @"Animate X"},
- @{@"key": @"animateY", @"label": @"Animate Y"},
- @{@"key": @"animateXY", @"label": @"Animate XY"},
- @{@"key": @"saveToGallery", @"label": @"Save to Camera Roll"},
- @{@"key": @"togglePinchZoom", @"label": @"Toggle PinchZoom"},
- @{@"key": @"toggleAutoScaleMinMax", @"label": @"Toggle auto scale min/max"},
- @{@"key": @"toggleData", @"label": @"Toggle Data"},
- ];
-
- _chartView.delegate = self;
-
- _chartView.chartDescription.enabled = NO;
-
- _chartView.dragEnabled = YES;
- [_chartView setScaleEnabled:YES];
- _chartView.drawGridBackgroundEnabled = NO;
- _chartView.pinchZoomEnabled = YES;
-
- _chartView.backgroundColor = [UIColor colorWithWhite:204/255.f alpha:1.f];
-
- ChartLegend *l = _chartView.legend;
- l.form = ChartLegendFormLine;
- l.font = [UIFont fontWithName:@"HelveticaNeue-Light" size:11.f];
- l.textColor = UIColor.whiteColor;
- l.horizontalAlignment = ChartLegendHorizontalAlignmentLeft;
- l.verticalAlignment = ChartLegendVerticalAlignmentBottom;
- l.orientation = ChartLegendOrientationHorizontal;
- l.drawInside = NO;
-
- ChartXAxis *xAxis = _chartView.xAxis;
- xAxis.labelFont = [UIFont systemFontOfSize:11.f];
- xAxis.labelTextColor = UIColor.whiteColor;
- xAxis.drawGridLinesEnabled = NO;
- xAxis.drawAxisLineEnabled = NO;
-
- ChartYAxis *leftAxis = _chartView.leftAxis;
- leftAxis.labelTextColor = [UIColor colorWithRed:51/255.f green:181/255.f blue:229/255.f alpha:1.f];
- leftAxis.axisMaximum = 200.0;
- leftAxis.axisMinimum = 0.0;
- leftAxis.drawGridLinesEnabled = YES;
- leftAxis.drawZeroLineEnabled = NO;
- leftAxis.granularityEnabled = YES;
-
- ChartYAxis *rightAxis = _chartView.rightAxis;
- rightAxis.labelTextColor = UIColor.redColor;
- rightAxis.axisMaximum = 900.0;
- rightAxis.axisMinimum = -200.0;
- rightAxis.drawGridLinesEnabled = NO;
- rightAxis.granularityEnabled = NO;
-
- _sliderX.value = 20.0;
- _sliderY.value = 30.0;
- [self slidersValueChanged:nil];
-
- [_chartView animateWithXAxisDuration:2.5];
- }
- - (void)didReceiveMemoryWarning
- {
- [super didReceiveMemoryWarning];
- // Dispose of any resources that can be recreated.
- }
- - (void)updateChartData
- {
- if (self.shouldHideData)
- {
- _chartView.data = nil;
- return;
- }
-
- [self setDataCount:_sliderX.value + 1 range:_sliderY.value];
- }
- - (void)setDataCount:(int)count range:(double)range
- {
- NSMutableArray *yVals1 = [[NSMutableArray alloc] init];
- NSMutableArray *yVals2 = [[NSMutableArray alloc] init];
- NSMutableArray *yVals3 = [[NSMutableArray alloc] init];
-
- for (int i = 0; i < count; i++)
- {
- double mult = range / 2.0;
- double val = (double) (arc4random_uniform(mult)) + 50;
- [yVals1 addObject:[[ChartDataEntry alloc] initWithX:i y:val]];
- }
-
- for (int i = 0; i < count - 1; i++)
- {
- double mult = range;
- double val = (double) (arc4random_uniform(mult)) + 450;
- [yVals2 addObject:[[ChartDataEntry alloc] initWithX:i y:val]];
- }
-
- for (int i = 0; i < count; i++)
- {
- double mult = range;
- double val = (double) (arc4random_uniform(mult)) + 500;
- [yVals3 addObject:[[ChartDataEntry alloc] initWithX:i y:val]];
- }
-
- LineChartDataSet *set1 = nil, *set2 = nil, *set3 = nil;
-
- if (_chartView.data.dataSetCount > 0)
- {
- set1 = (LineChartDataSet *)_chartView.data.dataSets[0];
- set2 = (LineChartDataSet *)_chartView.data.dataSets[1];
- set3 = (LineChartDataSet *)_chartView.data.dataSets[2];
- [set1 replaceEntries:yVals1];
- [set2 replaceEntries:yVals2];
- [set3 replaceEntries:yVals3];
- [_chartView.data notifyDataChanged];
- [_chartView notifyDataSetChanged];
- }
- else
- {
- set1 = [[LineChartDataSet alloc] initWithEntries:yVals1 label:@"DataSet 1"];
- set1.axisDependency = AxisDependencyLeft;
- [set1 setColor:[UIColor colorWithRed:51/255.f green:181/255.f blue:229/255.f alpha:1.f]];
- [set1 setCircleColor:UIColor.whiteColor];
- set1.lineWidth = 2.0;
- set1.circleRadius = 3.0;
- set1.fillAlpha = 65/255.0;
- set1.fillColor = [UIColor colorWithRed:51/255.f green:181/255.f blue:229/255.f alpha:1.f];
- set1.highlightColor = [UIColor colorWithRed:244/255.f green:117/255.f blue:117/255.f alpha:1.f];
- set1.drawCircleHoleEnabled = NO;
-
- set2 = [[LineChartDataSet alloc] initWithEntries:yVals2 label:@"DataSet 2"];
- set2.axisDependency = AxisDependencyRight;
- [set2 setColor:UIColor.redColor];
- [set2 setCircleColor:UIColor.whiteColor];
- set2.lineWidth = 2.0;
- set2.circleRadius = 3.0;
- set2.fillAlpha = 65/255.0;
- set2.fillColor = UIColor.redColor;
- set2.highlightColor = [UIColor colorWithRed:244/255.f green:117/255.f blue:117/255.f alpha:1.f];
- set2.drawCircleHoleEnabled = NO;
-
- set3 = [[LineChartDataSet alloc] initWithEntries:yVals3 label:@"DataSet 3"];
- set3.axisDependency = AxisDependencyRight;
- [set3 setColor:UIColor.yellowColor];
- [set3 setCircleColor:UIColor.whiteColor];
- set3.lineWidth = 2.0;
- set3.circleRadius = 3.0;
- set3.fillAlpha = 65/255.0;
- set3.fillColor = [UIColor.yellowColor colorWithAlphaComponent:200/255.f];
- set3.highlightColor = [UIColor colorWithRed:244/255.f green:117/255.f blue:117/255.f alpha:1.f];
- set3.drawCircleHoleEnabled = NO;
-
- NSMutableArray *dataSets = [[NSMutableArray alloc] init];
- [dataSets addObject:set1];
- [dataSets addObject:set2];
- [dataSets addObject:set3];
-
- LineChartData *data = [[LineChartData alloc] initWithDataSets:dataSets];
- [data setValueTextColor:UIColor.whiteColor];
- [data setValueFont:[UIFont systemFontOfSize:9.f]];
-
- _chartView.data = data;
- }
- }
- - (void)optionTapped:(NSString *)key
- {
- if ([key isEqualToString:@"toggleFilled"])
- {
- for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
- {
- set.drawFilledEnabled = !set.isDrawFilledEnabled;
- }
-
- [_chartView setNeedsDisplay];
- return;
- }
-
- if ([key isEqualToString:@"toggleCircles"])
- {
- for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
- {
- set.drawCirclesEnabled = !set.isDrawCirclesEnabled;
- }
-
- [_chartView setNeedsDisplay];
- return;
- }
-
- if ([key isEqualToString:@"toggleCubic"])
- {
- for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
- {
- set.mode = set.mode == LineChartModeCubicBezier ? LineChartModeLinear : LineChartModeCubicBezier;
- }
-
- [_chartView setNeedsDisplay];
- return;
- }
- if ([key isEqualToString:@"toggleStepped"])
- {
- for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
- {
- switch (set.mode) {
- case LineChartModeLinear:
- case LineChartModeCubicBezier:
- case LineChartModeHorizontalBezier:
- set.mode = LineChartModeStepped;
- break;
- case LineChartModeStepped: set.mode = LineChartModeLinear;
- }
- }
- [_chartView setNeedsDisplay];
- }
-
- if ([key isEqualToString:@"toggleHorizontalCubic"])
- {
- for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
- {
- set.mode = set.mode == LineChartModeCubicBezier ? LineChartModeHorizontalBezier : LineChartModeCubicBezier;
- }
-
- [_chartView setNeedsDisplay];
- return;
- }
-
- [super handleOption:key forChartView:_chartView];
- }
- #pragma mark - Actions
- - (IBAction)slidersValueChanged:(id)sender
- {
- _sliderTextX.text = [@((int)_sliderX.value) stringValue];
- _sliderTextY.text = [@((int)_sliderY.value) stringValue];
-
- [self updateChartData];
- }
- #pragma mark - ChartViewDelegate
- - (void)chartValueSelected:(ChartViewBase * __nonnull)chartView entry:(ChartDataEntry * __nonnull)entry highlight:(ChartHighlight * __nonnull)highlight
- {
- NSLog(@"chartValueSelected");
-
- [_chartView centerViewToAnimatedWithXValue:entry.x yValue:entry.y axis:[_chartView.data dataSetAtIndex:highlight.dataSetIndex].axisDependency duration:1.0];
- //[_chartView moveViewToAnimatedWithXValue:entry.x yValue:entry.y axis:[_chartView.data getDataSetByIndex:dataSetIndex].axisDependency duration:1.0];
- //[_chartView zoomAndCenterViewAnimatedWithScaleX:1.8 scaleY:1.8 xValue:entry.x yValue:entry.y axis:[_chartView.data getDataSetByIndex:dataSetIndex].axisDependency duration:1.0];
- }
- - (void)chartValueNothingSelected:(ChartViewBase * __nonnull)chartView
- {
- NSLog(@"chartValueNothingSelected");
- }
- @end
|