我一直在从我的应用程序用户那里收到有关CorePlot框架内错误的报告。它并非总是会发生，而且我无法自行检测出如何使其崩溃的模式。我想知道是否可以做些避免这种崩溃的事情。
Exception Type: SIGSEGV
Exception Codes: SEGV_MAPERR at 0x4c69ef75bec0
Crashed Thread: 0
Application Specific Information:
Selector name found in current argument registers: retain
Thread 0 Crashed:
0 libobjc.A.dylib 0x00007fff885c80dd objc_msgSend + 29
1 AppKit 0x00007fff8f045916 +[NSGraphicsContext setCurrentContext:] + 76
2 CorePlot 0x0000000104f10119 CPTPopCGContext + 40
3 CorePlot 0x0000000104f10051 -[NSAttributedString(CPTPlatformSpecificAttributedStringExtensions) drawInRect:inContext:] + 80
4 CorePlot 0x0000000104f05822 -[CPTTextLayer renderAsVectorInContext:] + 513
5 CorePlot 0x0000000104f06058 -[CPTLayer drawInContext:] + 55
6 QuartzCore 0x00007fff82dfe0c3 _ZN2CA5Layer8display_Ev + 657
7 QuartzCore 0x00007fff82dfc7fd _ZN2CA5Layer17display_if_neededEPNS_11TransactionE + 603
8 QuartzCore 0x00007fff82dfbe81 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 35
9 QuartzCore 0x00007fff82dfb612 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 242
10 QuartzCore 0x00007fff82dfb3ae _ZN2CA11Transaction6commitEv + 390
11 QuartzCore 0x00007fff82e09f19 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 71
12 CoreFoundation 0x00007fff8b53f127 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
13 CoreFoundation 0x00007fff8b53f080 __CFRunLoopDoObservers + 368
14 CoreFoundation 0x00007fff8b530bf8 CFRunLoopRunSpecific + 328
15 HIToolbox 0x00007fff9130f56f RunCurrentEventLoopInMode + 235
16 HIToolbox 0x00007fff9130f2ea ReceiveNextEventCommon + 431
17 HIToolbox 0x00007fff9130f12b _BlockUntilNextEventMatchingListInModeWithFilter + 71
18 AppKit 0x00007fff8f0719bb _DPSNextEvent + 978
19 AppKit 0x00007fff8f070f68 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 346
20 AppKit 0x00007fff8f066bf3 -[NSApplication run] + 594
21 AppKit 0x00007fff8efe3354 NSApplicationMain + 1832
22 MyApp 0x0000000104afcc3a main (ReceiptCheck.h:4779)
23 libdyld.dylib 0x00007fff830fd5c9 start + 1
我将CorePlot用于2种图形：饼图和条形图，同时显示2种图形，看看：
我的应用程序使用ARC，仅在优胜美地中运行。这是我的代码：
-(void)createGraphs{
[self updateChartTextStyles];
self.completedGraph = [self createGraphWithHostView:self.completedGraphHostingView];
self.uncompletedGraph = [self createGraphWithHostView:self.uncompletedGraphHostingView];
}
-(CPTXYGraph *)createGraphWithHostView:(CPTGraphHostingView *)hostView{
CPTXYGraph *graph = [[CPTXYGraph alloc]initWithFrame:self.completedGraphHostingView.bounds];
graph.plotAreaFrame.fill = [CPTFill fillWithColor:[CPTColor clearColor]];
graph.paddingBottom = 0;
graph.paddingTop = 0;
graph.paddingLeft = 0;
graph.paddingRight = 0;
graph.masksToBorder = NO;
[graph setTitleTextStyle:self.chartTitleStyle];
hostView.hostedGraph = graph;
return graph;
}
-(void)updateChartTextStyles{
CPTMutableTextStyle *textStyle = [CPTMutableTextStyle textStyle];
textStyle.fontName = [[ThemeManager mainFont] labelFont].fontName;
textStyle.fontSize = [[[ThemeManager mainFont] labelFont] pointSize];
textStyle.color = [CPTColor colorWithCGColor:[NSColor blackColor].CGColor];
self.chartLabelStyle = textStyle;
textStyle = [CPTMutableTextStyle textStyle];
textStyle.fontName = [[ThemeManager mainFont].titleFont fontName];
textStyle.fontSize = [[ThemeManager mainFont].titleFont pointSize];
textStyle.color = [CPTColor colorWithCGColor:[NSColor blackColor].CGColor];
self.chartTitleStyle = textStyle;
}
-(void)removeAllPlotsInGraph:(CPTGraph *)graph{
NSArray *allPlots = [graph.allPlots copy];
for (CPTPlot *plot in allPlots) {
[graph removePlot:plot];
}
}
-(void)setPieChartPlotToGraph:(CPTGraph *)graph withIdentifier:(NSString *)identifier{
[self removeAllPlotsInGraph:graph];
CPTPieChart *pieChart = [[CPTPieChart alloc]init];
pieChart.dataSource = self;
pieChart.delegate = self;
pieChart.pieRadius = (graph.hostingView.bounds.size.height*.7)/2;
pieChart.identifier = identifier;
CPTMutableShadow *shadow = [CPTMutableShadow shadow];
shadow.shadowColor = [CPTColor colorWithCGColor:[NSColor grayColor].CGColor];
shadow.shadowBlurRadius = 3;
shadow.shadowOffset = CGSizeMake(1, -1);
[pieChart setShadow:shadow];
graph.plotAreaFrame.paddingTop = 0;
graph.plotAreaFrame.paddingRight = 0;
graph.plotAreaFrame.paddingBottom = 0;
graph.plotAreaFrame.paddingLeft = 0;
[graph.axisSet setHidden:YES];
CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *)graph.defaultPlotSpace;
plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInt(0)
length:CPTDecimalFromInt(10)];
plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInt(0)
length:CPTDecimalFromInt(10)];
[graph addPlot:pieChart];
}
-(CPTBarPlot *)createBarPlotWithIdentifier:(NSString *)identifier withColor1:(NSColor *)color1 andColor2:(NSColor *)color2{
CPTBarPlot *barChart = [[CPTBarPlot alloc]init];
barChart.paddingBottom = 0;
barChart.paddingLeft = 0;
barChart.paddingRight = 0;
barChart.paddingTop = 0;
barChart.dataSource = self;
barChart.delegate = self;
barChart.identifier = identifier;
barChart.barWidth = CPTDecimalFromFloat(.7);
barChart.barCornerRadius = 6;
barChart.lineStyle = nil;
CPTMutableShadow *shadow = [CPTMutableShadow shadow];
shadow.shadowColor = [CPTColor grayColor];
shadow.shadowBlurRadius = 3;
shadow.shadowOffset = CGSizeMake(1, -1);
[barChart setShadow:shadow];
CPTGradient *gradient = [CPTGradient gradientWithBeginningColor:[CPTColor colorWithCGColor:color1.CGColor] endingColor:[CPTColor colorWithCGColor:color2.CGColor]];
barChart.fill = [CPTFill fillWithGradient:gradient];
return barChart;
}
-(void)setBarPlotToGraph:(CPTGraph *)graph withIdentifier:(NSString *)identifier andComposedColor:(ComposedColor *)composedColor{
[self removeAllPlotsInGraph:graph];
graph.plotAreaFrame.paddingTop = 10.0;
graph.plotAreaFrame.paddingRight = 0.00;
graph.plotAreaFrame.paddingBottom = 30.0;
graph.plotAreaFrame.paddingLeft = 0;
[graph addPlot:[self createBarPlotWithIdentifier:identifier withColor1:composedColor.baseColor andColor2:composedColor.brightColor]];
CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *)graph.defaultPlotSpace;
plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInt(0)
length:CPTDecimalFromInt(15)];
plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInt(-1)
length:CPTDecimalFromInt(8)];
CPTXYAxisSet *axisSet = (CPTXYAxisSet *)graph.axisSet;
CPTXYAxis *xAxis = axisSet.xAxis;
xAxis.orthogonalCoordinateDecimal = CPTDecimalFromInt(0);
xAxis.majorIntervalLength = CPTDecimalFromInt(1);
xAxis.minorTicksPerInterval = 0;
xAxis.labelingPolicy = CPTAxisLabelingPolicyNone;
xAxis.axisConstraints = [CPTConstraints constraintWithLowerOffset:0];
NSArray *dayOfWeekLabels = [NSDate daysOfTheWeekNamesAbbreviated:YES];
NSMutableArray *customXLabels = [NSMutableArray array];
NSDate *tempDate = self.startDate;
for (int i = 0; i < 7; i++) {
CPTAxisLabel *label = [[CPTAxisLabel alloc]initWithText:[NSString stringWithFormat:@"%@ %i",dayOfWeekLabels[i], tempDate.day] textStyle:self.chartLabelStyle];
tempDate = [tempDate addDays:1];
label.tickLocation = [@(i) decimalValue];
label.offset = xAxis.labelOffset + xAxis.majorTickLength;
// label.rotation = M_PI/4.0;
[customXLabels addObject:label];
}
xAxis.axisLabels = [NSSet setWithArray:customXLabels];
CPTXYAxis *yAxis = axisSet.yAxis;
yAxis.title = @"Value";
yAxis.titleOffset = 50.f;
yAxis.labelingPolicy = CPTAxisLabelingPolicyNone;
yAxis.axisConstraints = [CPTConstraints constraintWithLowerOffset:0];
}
-(void)updateCharts{
[self updateCompletedChart];
[self updateUncompletedChart];
}
-(void)updateUncompletedChart{
self.uncompletedTasksGraphData = [self calculateChartDataWithTasks:self.uncompletedTasks groupType:[self groupTypeForGraph] chartType:[self chartTypeForGraph]];
if (self.pieChartButton.state) {
[self setPieChartPlotToGraph:self.uncompletedGraph withIdentifier:UNCOMPLETED_PIE_CHART_IDENTIFIER];
}
else if(self.barChartButton.state){
[self setBarPlotToGraph:self.uncompletedGraph withIdentifier:UNCOMPLETED_BAR_CHART_IDENTIFIER andComposedColor:[[ComposedColorManager defaultInstance]composedColorWithCode:@"Red"]];
}
[self.uncompletedGraph reloadData];
}
-(void)updateCompletedChart{
self.completedTasksGraphData = [self calculateChartDataWithTasks:self.completedTasks groupType:[self groupTypeForGraph] chartType:[self chartTypeForGraph]];
if (self.pieChartButton.state) {
[self setPieChartPlotToGraph:self.completedGraph withIdentifier:COMPLETED_PIE_CHART_IDENTIFIER];
}
else if(self.barChartButton.state){
[self setBarPlotToGraph:self.completedGraph withIdentifier:COMPLETED_BAR_CHART_IDENTIFIER andComposedColor:[[ComposedColorManager defaultInstance]composedColorWithCode:@"Green"]];
}
[self.completedGraph reloadData];
}
/////////////////////////////////////////////////////////////
#pragma mark Graph Data Source
/////////////////////////////////////////////////////////////
-(NSMutableArray *)chartDataForIdentifier:(NSString *)identifier{
if (identifier == COMPLETED_PIE_CHART_IDENTIFIER || identifier == COMPLETED_BAR_CHART_IDENTIFIER) {
return self.completedTasksGraphData;
}
else if(identifier == UNCOMPLETED_PIE_CHART_IDENTIFIER || identifier == UNCOMPLETED_BAR_CHART_IDENTIFIER){
return self.uncompletedTasksGraphData;
}
else{
throwNotImplementedException;
}
}
-(NSUInteger )numberOfRecordsForPlot:(CPTPlot *)plot{
if (plot.identifier == COMPLETED_PIE_CHART_IDENTIFIER || plot.identifier == UNCOMPLETED_PIE_CHART_IDENTIFIER) {
return [[self chartDataForIdentifier:(NSString *)plot.identifier] count];
}
else{
return 7;
}
}
-(NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)idx{
if (plot.identifier == COMPLETED_PIE_CHART_IDENTIFIER || plot.identifier == UNCOMPLETED_PIE_CHART_IDENTIFIER) {
if (fieldEnum == CPTPieChartFieldSliceWidth) {
NSMutableArray *graphData = [self chartDataForIdentifier:(NSString *)plot.identifier];
return [graphData[idx] numberValue];
}
else{
return @(0);
}
}
else if(plot.identifier == COMPLETED_BAR_CHART_IDENTIFIER || plot.identifier == UNCOMPLETED_BAR_CHART_IDENTIFIER){
if (fieldEnum == CPTScatterPlotFieldX) {
return @(idx);
}
else if(fieldEnum == CPTScatterPlotFieldY){
NSDate *date = [self.startDate addDays:idx];
NSMutableArray *graphData = [self chartDataForIdentifier:(NSString *)plot.identifier];
float sum = [graphData chartDataSumWithDate:date];
return @(sum);
}
else{
return @(0);
}
}
else{
throwNotImplementedException;
}
}
-(CPTLayer *)dataLabelForPlot:(CPTPlot *)plot recordIndex:(NSUInteger)idx{
if (plot.identifier == COMPLETED_PIE_CHART_IDENTIFIER || plot.identifier == UNCOMPLETED_PIE_CHART_IDENTIFIER) {
NSMutableArray *chartDataArray = [self chartDataForIdentifier:(NSString *)plot.identifier];
ChartData *chartData = chartDataArray[idx];
CPTTextLayer *textLayer = [[CPTTextLayer alloc]initWithText:[chartData labelWithPercentage]];
[textLayer setTextStyle:self.chartLabelStyle];
return textLayer;
}
else{
NSMutableArray *chartData = [self chartDataForIdentifier:(NSString *)plot.identifier];
NSDate *date = [[self.startDate addDays:idx] dateAsDateWithoutTime];
float sum = [chartData chartDataSumWithDate:date];
if (sum == 0) {
return nil;
}
CPTTextLayer *textLayer = [[CPTTextLayer alloc]initWithText:[NSString stringWithFormat:@"%.0f", sum]];
return textLayer;
}
}
-(CPTFill *)sliceFillForPieChart:(CPTPieChart *)pieChart recordIndex:(NSUInteger)index{
if (pieChart.identifier == COMPLETED_PIE_CHART_IDENTIFIER || pieChart.identifier == UNCOMPLETED_PIE_CHART_IDENTIFIER) {
NSMutableArray *chartData = [self chartDataForIdentifier:(NSString *)pieChart.identifier];
ChartData *data = chartData[index];
if (data.color && data.color2) {
CPTColor *cptColor1, *cptColor2;
cptColor1 = [CPTColor colorWithCGColor:data.color.CGColor];
cptColor2 = [CPTColor colorWithCGColor:data.color2.CGColor];
CPTGradient *gradient = [CPTGradient gradientWithBeginningColor:cptColor1 endingColor:cptColor2];
return [CPTFill fillWithGradient:gradient];
}
else{
CPTColor *color = [CPTColor colorWithCGColor:data.color.CGColor];
CPTFill *fill = [CPTFill fillWithColor:color];
return fill;
}
}
else{
throwNotImplementedException;
}
}
最佳答案
我相信这个问题已经解决。版本1.6应该很快就会发布，或者您可以从GitHub中获取最新代码。
关于macos - CorePlot 1.5.1中的错误，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/30105925/