Files
macos-stats/Carthage/Checkouts/Charts/ChartsDemo-iOS/Objective-C/Demos/AnotherBarChartViewController.m
2019-09-09 17:57:18 +02:00

150 lines
4.2 KiB
Objective-C

//
// AnotherBarChartViewController.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 "AnotherBarChartViewController.h"
#import "ChartsDemo_iOS-Swift.h"
@interface AnotherBarChartViewController () <ChartViewDelegate>
@property (nonatomic, strong) IBOutlet BarChartView *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 AnotherBarChartViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = @"Another Bar Chart";
self.options = @[
@{@"key": @"toggleValues", @"label": @"Toggle Values"},
@{@"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": @"toggleData", @"label": @"Toggle Data"},
@{@"key": @"toggleBarBorders", @"label": @"Show Bar Borders"},
];
_chartView.delegate = self;
_chartView.chartDescription.enabled = NO;
_chartView.maxVisibleCount = 60;
_chartView.pinchZoomEnabled = NO;
_chartView.drawBarShadowEnabled = NO;
_chartView.drawGridBackgroundEnabled = NO;
ChartXAxis *xAxis = _chartView.xAxis;
xAxis.labelPosition = XAxisLabelPositionBottom;
xAxis.drawGridLinesEnabled = NO;
_chartView.leftAxis.drawGridLinesEnabled = NO;
_chartView.rightAxis.drawGridLinesEnabled = NO;
_chartView.legend.enabled = NO;
_sliderX.value = 10.0;
_sliderY.value = 100.0;
[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 + 1 range:_sliderY.value];
}
- (void)setDataCount:(int)count range:(double)range
{
NSMutableArray *yVals = [[NSMutableArray alloc] init];
for (int i = 0; i < count; i++)
{
double mult = (range + 1);
double val = (double) (arc4random_uniform(mult)) + mult / 3.0;
[yVals addObject:[[BarChartDataEntry alloc] initWithX:i y:val]];
}
BarChartDataSet *set1 = nil;
if (_chartView.data.dataSetCount > 0)
{
set1 = (BarChartDataSet *)_chartView.data.dataSets[0];
[set1 replaceEntries:yVals];
[_chartView.data notifyDataChanged];
[_chartView notifyDataSetChanged];
}
else
{
set1 = [[BarChartDataSet alloc] initWithEntries:yVals label:@"DataSet"];
set1.colors = ChartColorTemplates.vordiplom;
set1.drawValuesEnabled = NO;
NSMutableArray *dataSets = [[NSMutableArray alloc] init];
[dataSets addObject:set1];
BarChartData *data = [[BarChartData alloc] initWithDataSets:dataSets];
_chartView.data = data;
_chartView.fitBars = YES;
}
[_chartView setNeedsDisplay];
}
- (void)optionTapped:(NSString *)key
{
[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");
}
- (void)chartValueNothingSelected:(ChartViewBase * __nonnull)chartView
{
NSLog(@"chartValueNothingSelected");
}
@end