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- //
- // LineChartFilledViewController.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 "LineChartFilledViewController.h"
- #import "ChartsDemo_iOS-Swift.h"
- @interface LineChartFilledViewController () <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 LineChartFilledViewController
- - (void)viewDidLoad
- {
- [super viewDidLoad];
-
- self.title = @"Filled Line Chart";
-
- _chartView.delegate = self;
-
- _chartView.backgroundColor = UIColor.whiteColor;
- _chartView.gridBackgroundColor = [UIColor colorWithRed:51/255.0 green:181/255.0 blue:229/255.0 alpha:150/255.0];
- _chartView.drawGridBackgroundEnabled = YES;
-
- _chartView.drawBordersEnabled = YES;
-
- _chartView.chartDescription.enabled = NO;
-
- _chartView.pinchZoomEnabled = NO;
- _chartView.dragEnabled = YES;
- [_chartView setScaleEnabled:YES];
-
- ChartLegend *l = _chartView.legend;
- l.enabled = NO;
-
- ChartXAxis *xAxis = _chartView.xAxis;
- xAxis.enabled = NO;
-
- ChartYAxis *leftAxis = _chartView.leftAxis;
- leftAxis.axisMaximum = 900.0;
- leftAxis.axisMinimum = -250.0;
- leftAxis.drawAxisLineEnabled = NO;
- leftAxis.drawZeroLineEnabled = NO;
- leftAxis.drawGridLinesEnabled = NO;
-
- _chartView.rightAxis.enabled = NO;
-
- _sliderX.value = 100.0;
- _sliderY.value = 60.0;
- [self slidersValueChanged:nil];
- }
- - (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 range:_sliderY.value];
- }
- - (void)setDataCount:(int)count range:(double)range
- {
- NSMutableArray *yVals1 = [NSMutableArray array];
- NSMutableArray *yVals2 = [NSMutableArray array];
-
- for (int i = 0; i < count; i++)
- {
- double val = arc4random_uniform(range) + 50;
- [yVals1 addObject:[[ChartDataEntry alloc] initWithX:i y:val]];
- }
-
- for (int i = 0; i < count; i++)
- {
- double val = arc4random_uniform(range) + 450;
- [yVals2 addObject:[[ChartDataEntry alloc] initWithX:i y:val]];
- }
-
- LineChartDataSet *set1 = nil;
- LineChartDataSet *set2 = nil;
-
- if (_chartView.data.dataSetCount > 0)
- {
- set1 = (LineChartDataSet *)_chartView.data.dataSets[0];
- set2 = (LineChartDataSet *)_chartView.data.dataSets[1];
- [set1 replaceEntries:yVals1];
- [set2 replaceEntries:yVals2];
- [_chartView.data notifyDataChanged];
- [_chartView notifyDataSetChanged];
- }
- else
- {
- set1 = [[LineChartDataSet alloc] initWithEntries:yVals1 label:@"DataSet 1"];
- set1.axisDependency = AxisDependencyLeft;
- [set1 setColor:[UIColor colorWithRed:255/255.0 green:241/255.0 blue:46/255.0 alpha:1.0]];
- set1.drawCirclesEnabled = NO;
- set1.lineWidth = 2.0;
- set1.circleRadius = 3.0;
- set1.fillAlpha = 1.0;
- set1.drawFilledEnabled = YES;
- set1.fillColor = UIColor.whiteColor;
- set1.highlightColor = [UIColor colorWithRed:244/255.0 green:117/255.0 blue:117/255.0 alpha:1.0];
- set1.drawCircleHoleEnabled = NO;
- set1.fillFormatter = [ChartDefaultFillFormatter withBlock:^CGFloat(id<LineChartDataSetProtocol> _Nonnull dataSet, id<LineChartDataProvider> _Nonnull dataProvider) {
- return self.chartView.leftAxis.axisMinimum;
- }];
-
- set2 = [[LineChartDataSet alloc] initWithEntries:yVals2 label:@"DataSet 2"];
- set2.axisDependency = AxisDependencyLeft;
- [set2 setColor:[UIColor colorWithRed:255/255.0 green:241/255.0 blue:46/255.0 alpha:1.0]];
- set2.drawCirclesEnabled = NO;
- set2.lineWidth = 2.0;
- set2.circleRadius = 3.0;
- set2.fillAlpha = 1.0;
- set2.drawFilledEnabled = YES;
- set2.fillColor = UIColor.whiteColor;
- set2.highlightColor = [UIColor colorWithRed:244/255.0 green:117/255.0 blue:117/255.0 alpha:1.0];
- set2.drawCircleHoleEnabled = NO;
- set2.fillFormatter = [ChartDefaultFillFormatter withBlock:^CGFloat(id<LineChartDataSetProtocol> _Nonnull dataSet, id<LineChartDataProvider> _Nonnull dataProvider) {
- return self.chartView.leftAxis.axisMaximum;
- }];
-
- NSMutableArray *dataSets = [[NSMutableArray alloc] init];
- [dataSets addObject:set1];
- [dataSets addObject:set2];
-
- LineChartData *data = [[LineChartData alloc] initWithDataSets:dataSets];
- [data setDrawValues:NO];
-
- _chartView.data = data;
- }
- }
- #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");
- }
- - (void)chartValueNothingSelected:(ChartViewBase * __nonnull)chartView
- {
- NSLog(@"chartValueNothingSelected");
- }
- @end
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