add highlight on bar animation #58

@@ -8,6 +8,7 @@
 
 #import <UIKit/UIKit.h>
 #import "PNChartDelegate.h"
+#import "PNBar.h"
 
 #define xLabelMargin 15
 #define yLabelMargin 15
@@ -27,6 +28,9 @@ typedef NSString *(^PNyLabelFromatter)(CGFloat yLabelValue);
 @property (nonatomic) NSArray *xLabels;
 @property (nonatomic) NSArray *yLabels;
 @property (nonatomic) NSArray *yValues;
+
+@property (nonatomic) NSMutableArray * bars;
+
 @property (nonatomic) CGFloat xLabelWidth;
 @property (nonatomic) int yValueMax;
 @property (nonatomic) UIColor *strokeColor;

@@ -9,10 +9,9 @@
 #import "PNBarChart.h"
 #import "PNColor.h"
 #import "PNChartLabel.h"
-#import "PNBar.h"
+
 
 @interface PNBarChart () {
-    NSMutableArray *_bars;
     NSMutableArray *_labels;
 }
 

@@ -8,7 +8,10 @@
 
 #import <UIKit/UIKit.h>
 #import "PNChartDelegate.h"
+#import "PNChart.h"
 
 @interface PCChartsTableViewController : UITableViewController<PNChartDelegate>
 
+@property (nonatomic) PNBarChart * barChart;
+
 @end

@@ -105,23 +105,23 @@
         barChartLabel.font = [UIFont fontWithName:@"Avenir-Medium" size:23.0];
         barChartLabel.textAlignment = NSTextAlignmentCenter;
         
-        PNBarChart * barChart = [[PNBarChart alloc] initWithFrame:CGRectMake(0, 135.0, SCREEN_WIDTH, 200.0)];
-        barChart.backgroundColor = [UIColor clearColor];
-        barChart.yLabelFormatter = ^(CGFloat yValue){
+        self.barChart = [[PNBarChart alloc] initWithFrame:CGRectMake(0, 135.0, SCREEN_WIDTH, 200.0)];
+        self.barChart.backgroundColor = [UIColor clearColor];
+        self.barChart.yLabelFormatter = ^(CGFloat yValue){
             CGFloat yValueParsed = yValue;
             NSString * labelText = [NSString stringWithFormat:@"%1.f",yValueParsed];
             return labelText;
         };
-        barChart.labelMarginTop = 5.0;
-        [barChart setXLabels:@[@"SEP 1",@"SEP 2",@"SEP 3",@"SEP 4",@"SEP 5",@"SEP 6",@"SEP 7"]];
-        [barChart setYValues:@[@1,@24,@12,@18,@30,@10,@21]];
-        [barChart setStrokeColors:@[PNGreen,PNGreen,PNRed,PNGreen,PNGreen,PNYellow,PNGreen]];
-        [barChart strokeChart];
+        self.barChart.labelMarginTop = 5.0;
+        [self.barChart setXLabels:@[@"SEP 1",@"SEP 2",@"SEP 3",@"SEP 4",@"SEP 5",@"SEP 6",@"SEP 7"]];
+        [self.barChart setYValues:@[@1,@24,@12,@18,@30,@10,@21]];
+        [self.barChart setStrokeColors:@[PNGreen,PNGreen,PNRed,PNGreen,PNGreen,PNYellow,PNGreen]];
+        [self.barChart strokeChart];
         
-        barChart.delegate = self;
+        self.barChart.delegate = self;
         
         [viewController.view addSubview:barChartLabel];
-        [viewController.view addSubview:barChart];
+        [viewController.view addSubview:self.barChart];
         
         viewController.title = @"Bar Chart";
     }else if ([segue.identifier isEqualToString:@"circleChart"])
@@ -191,7 +191,30 @@
 
 - (void)userClickedOnBarCharIndex:(NSInteger)barIndex
 {
+    
     NSLog(@"Click on bar %@", @(barIndex));
+    
+    PNBar * bar = [self.barChart.bars objectAtIndex:barIndex];
+    
+    CABasicAnimation *animation= [CABasicAnimation animationWithKeyPath:@"transform.scale"];
+    
+    animation.fromValue= @1.0;
+    
+    animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
+    
+    animation.toValue= @1.1;
+    
+    animation.duration= 0.2;
+    
+    animation.repeatCount = 0;
+    
+    animation.autoreverses = YES;
+    
+    animation.removedOnCompletion = YES;
+    
+    animation.fillMode=kCAFillModeForwards;
+    
+    [bar.layer addAnimation:animation forKey:@"Float"];
 }
 
 @end