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मैं सरल बार चार्ट आवेदन में काम कर रहे, इस आवेदन को विकसित करने के का उपयोग करना है, तो मैं बार चार्ट को लागू करने की कोशिश, लेकिन मैं इस मुद्दे कोआईफोन में बार चार्ट को कैसे कार्यान्वित करें?
[__NSCFConstantString sizeWithTextStyle:]: unrecognized selector sent to instance 0x7fb4c'
First throw call stack:
में पाया मिल इसे कैसे ठीक करने के लिए कर रहा हूँ?
Viewcontroller.h
#import <UIKit/UIKit.h>
#import "CorePlot-CocoaTouch.h"
@interface GraphViewController : UIViewController <CPTPlotDataSource>
{
CPTXYGraph *barChart;
NSTimer *timer;
NSMutableArray *samples;
}
-(void) getGraphValues;
@end
Viewcontroller.m
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor=[UIColor whiteColor];
self.title = @"Sample";
self.navigationController.navigationBar.barStyle = UIBarStyleBlack;
[self.navigationController setNavigationBarHidden:NO];
[self getGraphValues];
double xAxisLength = [samples count];
barChart = [[CPTXYGraph alloc] initWithFrame:CGRectMake(0, 0, 320, 380)];
barChart.plotAreaFrame.borderLineStyle = nil;
barChart.plotAreaFrame.cornerRadius = 0.0f;
barChart.paddingLeft = 0.0f;
barChart.paddingRight = 0.0f;
barChart.paddingTop = 0.0f;
barChart.paddingBottom = 0.0f;
barChart.plotAreaFrame.paddingLeft = 60.0;
barChart.plotAreaFrame.paddingTop = 40.0;
barChart.plotAreaFrame.paddingRight = 10.0;
barChart.plotAreaFrame.paddingBottom = 40.0;
barChart.title = @"Sample Innovations";
CPTMutableTextStyle *textStyle = [CPTTextStyle textStyle];
textStyle.color = [CPTColor grayColor];
textStyle.fontSize = 16.0f;
textStyle.textAlignment = CPTTextAlignmentCenter;
barChart.titleTextStyle = textStyle; // Error found here
barChart.titleDisplacement = CGPointMake(0.0f, -10.0f);
barChart.titlePlotAreaFrameAnchor = CPTRectAnchorTop;
CPTXYAxisSet *axisSet = (CPTXYAxisSet *)barChart.axisSet;
CPTXYAxis *x = axisSet.xAxis;
x.axisLineStyle = nil;
x.majorTickLineStyle = nil;
x.minorTickLineStyle = nil;
x.majorIntervalLength = CPTDecimalFromString(@"10");
x.orthogonalCoordinateDecimal = CPTDecimalFromString(@"0");
x.title = @"Names";
x.titleLocation = CPTDecimalFromFloat(7.5f);
x.titleOffset = 25.0f;
// Define some custom labels for the data elements
x.labelRotation = M_PI/5;
x.labelingPolicy = CPTAxisLabelingPolicyNone;
NSArray *customTickLocations = [NSArray arrayWithObjects:[NSDecimalNumber numberWithInt:0], [NSDecimalNumber numberWithInt:1], [NSDecimalNumber numberWithInt:2], [NSDecimalNumber numberWithInt:3], [NSDecimalNumber numberWithInt:4], nil];
NSArray *xAxisLabels = [NSArray arrayWithObjects:@"a", @"b", @"c", @"d", @"e", nil];
NSUInteger labelLocation = 0;
NSMutableArray *customLabels = [NSMutableArray arrayWithCapacity:[xAxisLabels count]];
for (NSNumber *tickLocation in customTickLocations)
{
CPTAxisLabel *newLabel = [[CPTAxisLabel alloc] initWithText: [xAxisLabels objectAtIndex:labelLocation++] textStyle:x.labelTextStyle];
newLabel.tickLocation = [tickLocation decimalValue];
newLabel.offset = x.labelOffset + x.majorTickLength;
newLabel.rotation = M_PI/xAxisLength;
[customLabels addObject:newLabel];
}
x.axisLabels = [NSSet setWithArray:customLabels];
CPTXYAxis *y = axisSet.yAxis;
y.axisLineStyle = nil;
y.majorTickLineStyle = nil;
y.minorTickLineStyle = nil;
y.majorIntervalLength = CPTDecimalFromString(@"50");
y.orthogonalCoordinateDecimal = CPTDecimalFromString(@"0");
y.title = @"Work Status";
y.titleOffset = 40.0f;
y.titleLocation = CPTDecimalFromFloat(150.0f);
CPTGraphHostingView *hostingView = [[CPTGraphHostingView alloc] initWithFrame:CGRectMake(0, 0, 320, 360)];
hostingView.hostedGraph = barChart;
[self.view addSubview:hostingView];
CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *) barChart.defaultPlotSpace;
plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromDouble(0.0f) length:CPTDecimalFromDouble(16.0f)];
plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromDouble(0.0f) length:CPTDecimalFromDouble(500.0f)];
CPTBarPlot *barPlot = [CPTBarPlot tubularBarPlotWithColor:[CPTColor blueColor] horizontalBars:NO];
barPlot.plotRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromDouble(0.0) length:CPTDecimalFromDouble(10)];//xAxisLength
barPlot.barOffset = CPTDecimalFromFloat(0.25f);
barPlot.baseValue = CPTDecimalFromString(@"0");
barPlot.barWidth = CPTDecimalFromFloat(10.0f);
barPlot.cornerRadius = 2.0f;
barPlot.dataSource = self;
[barChart addPlot:barPlot];
}
-(void) getGraphValues
{
int barValues [] = {10,50,100,200};//,150,200,10,20,30,40,50,100,400,450,350
int barNums = sizeof(barValues)/sizeof(int);
samples = [[NSMutableArray alloc] initWithCapacity:barNums];
for (int i = 0; i < 4; i++)
{
double x = i;
double y = barValues[i];
NSLog(@"XVal : %@", X_VAL);
NSDictionary *sample = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithDouble:30],X_VAL,[NSNumber numberWithDouble:y],Y_VAL,nil];
[samples addObject:sample];
}
}
-(NSUInteger)numberOfRecordsForPlot:(CPTPlot *)plot
{
return [samples count];
}
-(NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index
{
NSDictionary *sample = [samples objectAtIndex:index];
if (fieldEnum == CPTScatterPlotFieldX)
return [sample valueForKey:X_VAL];
else
return [sample valueForKey:Y_VAL];
}
में
धन्यवाद मैं इस कोशिश की
आप जानते हैं कि त्रुटि संदेश का अर्थ क्या है, सही? (और त्रुटि के बिंदु पर कॉल स्टैक को जोड़ना इस निदान में बहुत उपयोगी होगा।) –