我已经使用BEMSimpleLineGraph Pod创建了一个折线图,但是,就我而言,无法弄清楚为什么x-Axis标签不会出现在任何更新的设备上iPhone 5。
编辑:我应该在默认情况下提及enableXAxisLabel = YES。
以下是布置图表的代码:
#import "WeightChartCell.h"
@implementation WeightChartCell
@synthesize viewCell, arrayPlots, myGraph, labelWeightHistory;
- (void)awakeFromNib {
}
- (void)layoutSubviews {
[super layoutSubviews];
float width = viewCell.bounds.size.width;
self.myGraph = [[BEMSimpleLineGraphView alloc] initWithFrame:CGRectMake(-20, 40, width+20, 150.0)];
self.myGraph.dataSource = self;
self.myGraph.delegate = self;
self.myGraph.colorTop = [UIColor whiteColor];
self.myGraph.colorBottom = [UIColor colorWithRed:190/255.0 green:218/255.0 blue:246/255.0 alpha:1];
self.myGraph.colorLine = [UIColor colorWithRed:124/255.0 green:181/255.0 blue:236/255.0 alpha:1];
self.myGraph.colorPoint = [UIColor colorWithRed:124/255.0 green:181/255.0 blue:236/255.0 alpha:1];
self.myGraph.widthLine = 3;
self.myGraph.sizePoint = 10;
self.myGraph.alwaysDisplayDots = YES;
self.myGraph.colorXaxisLabel = [UIColor lightGrayColor];
self.myGraph.colorBackgroundXaxis = [UIColor clearColor];
self.myGraph.enableYAxisLabel = YES;
self.myGraph.colorYaxisLabel = [UIColor clearColor];
self.myGraph.colorBackgroundYaxis = [UIColor clearColor];
self.myGraph.enableReferenceYAxisLines = YES;
self.myGraph.colorReferenceLines = [UIColor lightGrayColor];
self.myGraph.enableLeftReferenceAxisFrameLine = NO;
self.myGraph.enablePopUpReport = YES;
self.myGraph.enableReferenceAxisFrame = YES;
[viewCell addSubview:self.myGraph];
labelWeightHistory.text = NSLocalizedString(@"Progress", nil);
[self sendSubviewToBack:self.myGraph];
}
- (NSInteger)numberOfPointsInLineGraph:(BEMSimpleLineGraphView *)graph {
return [arrayPlots count];
}
- (NSInteger)numberOfGapsBetweenLabelsOnLineGraph:(BEMSimpleLineGraphView *)graph {
return 1;
}
- (NSString *)lineGraph:(BEMSimpleLineGraphView *)graph labelOnXAxisForIndex:(NSInteger)index {
NSString *dateStr = [[arrayPlots objectAtIndex:index] valueForKey:@"created_at"];
// Convert string to date object
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"yyyy-MM-dd"];
NSDate *date = [dateFormat dateFromString:dateStr];
// Convert date object to desired output format
[dateFormat setDateFormat:@"d.MMM"];
dateStr = [dateFormat stringFromDate:date];
return dateStr;
}
- (CGFloat)lineGraph:(BEMSimpleLineGraphView *)graph valueForPointAtIndex:(NSInteger)index {
NSInteger yPoint = [[[arrayPlots objectAtIndex:index] valueForKey:@"weight"] floatValue];
return yPoint;
}
@end
它在iPhone 5设备和iPhone 5模拟器上按预期出现:
但他们根本不会出现比iPhone 5更新的东西。这适用于iPhone 5s: