Optimize imports.

@@ -7,7 +7,6 @@
 //
 
 #import "PNChartLabel.h"
-#import "PNColor.h"
 
 @implementation PNChartLabel
 

@@ -7,9 +7,6 @@
 //
 
 #import "PCChartsTableViewController.h"
-#import "PNChart.h"
-#import "PNLineChartData.h"
-#import "PNLineChartDataItem.h"
 
 @interface PCChartsTableViewController ()
 
@@ -32,7 +29,7 @@
 
     // Uncomment the following line to preserve selection between presentations.
     // self.clearsSelectionOnViewWillAppear = NO;
- 
+
     // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
     // self.navigationItem.rightBarButtonItem = self.editButtonItem;
 }
@@ -48,18 +45,18 @@
 {
     // Get the new view controller using [segue destinationViewController].
     // Pass the selected object to the new view controller.
-    
+
     UIViewController * viewController = [segue destinationViewController];
-    
+
     if ([segue.identifier isEqualToString:@"lineChart"]) {
-        
+
         //Add LineChart
         UILabel * lineChartLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 90, SCREEN_WIDTH, 30)];
         lineChartLabel.text = @"Line Chart";
         lineChartLabel.textColor = PNFreshGreen;
         lineChartLabel.font = [UIFont fontWithName:@"Avenir-Medium" size:23.0];
         lineChartLabel.textAlignment = NSTextAlignmentCenter;
-        
+
         PNLineChart * lineChart = [[PNLineChart alloc] initWithFrame:CGRectMake(0, 135.0, SCREEN_WIDTH, 200.0)];
         lineChart.yLabelFormat = @"%1.1f";
         lineChart.backgroundColor = [UIColor clearColor];
@@ -90,24 +87,24 @@
 
         lineChart.chartData = @[data01, data02];
         [lineChart strokeChart];
-        
+
         lineChart.delegate = self;
-        
+
         [viewController.view addSubview:lineChartLabel];
         [viewController.view addSubview:lineChart];
-        
+
         viewController.title = @"Line Chart";
-        
+
     }else if ([segue.identifier isEqualToString:@"barChart"])
     {
         //Add BarChart
-        
+
         UILabel * barChartLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 90, SCREEN_WIDTH, 30)];
         barChartLabel.text = @"Bar Chart";
         barChartLabel.textColor = PNFreshGreen;
         barChartLabel.font = [UIFont fontWithName:@"Avenir-Medium" size:23.0];
         barChartLabel.textAlignment = NSTextAlignmentCenter;
-        
+
         self.barChart = [[PNBarChart alloc] initWithFrame:CGRectMake(0, 135.0, SCREEN_WIDTH, 200.0)];
         self.barChart.backgroundColor = [UIColor clearColor];
         self.barChart.yLabelFormatter = ^(CGFloat yValue){
@@ -123,71 +120,71 @@
         self.barChart.barColorGradientStart = [UIColor blueColor];
 
         [self.barChart strokeChart];
-        
-        
+
+
 
         self.barChart.delegate = self;
-        
+
         [viewController.view addSubview:barChartLabel];
         [viewController.view addSubview:self.barChart];
-        
+
         viewController.title = @"Bar Chart";
     }else if ([segue.identifier isEqualToString:@"circleChart"])
     {
-        
+
         //Add CircleChart
-        
-        
+
+
         UILabel * circleChartLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 90, SCREEN_WIDTH, 30)];
         circleChartLabel.text = @"Circle Chart";
         circleChartLabel.textColor = PNFreshGreen;
         circleChartLabel.font = [UIFont fontWithName:@"Avenir-Medium" size:23.0];
         circleChartLabel.textAlignment = NSTextAlignmentCenter;
-        
+
         PNCircleChart * circleChart = [[PNCircleChart alloc] initWithFrame:CGRectMake(0, 80.0, SCREEN_WIDTH, 100.0) andTotal:@100 andCurrent:@60 andClockwise:YES andShadow:YES];
         circleChart.backgroundColor = [UIColor clearColor];
         [circleChart setStrokeColor:PNGreen];
         [circleChart setStrokeColorGradientStart:[UIColor blueColor]];
         [circleChart strokeChart];
-        
+
         [viewController.view addSubview:circleChartLabel];
 
         [viewController.view addSubview:circleChart];
         viewController.title = @"Circle Chart";
-        
+
     }else if ([segue.identifier isEqualToString:@"pieChart"])
     {
-        
+
         //Add PieChart
         UILabel * pieChartLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 90, SCREEN_WIDTH, 30)];
         pieChartLabel.text = @"Pie Chart";
         pieChartLabel.textColor = PNFreshGreen;
         pieChartLabel.font = [UIFont fontWithName:@"Avenir-Medium" size:23.0];
         pieChartLabel.textAlignment = NSTextAlignmentCenter;
-        
-        
-        
+
+
+
         NSArray *items = @[[PNPieChartDataItem dataItemWithValue:10 color:PNLightGreen],
                            [PNPieChartDataItem dataItemWithValue:20 color:PNFreshGreen description:@"WWDC"],
                            [PNPieChartDataItem dataItemWithValue:40 color:PNDeepGreen description:@"GOOL I/O"],
                            ];
-        
-        
-        
+
+
+
         PNPieChart *pieChart = [[PNPieChart alloc] initWithFrame:CGRectMake(40.0, 155.0, 240.0, 240.0) items:items];
         pieChart.descriptionTextColor = [UIColor whiteColor];
         pieChart.descriptionTextFont  = [UIFont fontWithName:@"Avenir-Medium" size:14.0];
         pieChart.descriptionTextShadowColor = [UIColor clearColor];
         [pieChart strokeChart];
-        
-        
+
+
         [viewController.view addSubview:pieChartLabel];
         [viewController.view addSubview:pieChart];
-        
+
         viewController.title = @"Pie Chart";
-        
+
     }
-    
+
 }
 
 -(void)userClickedOnLineKeyPoint:(CGPoint)point lineIndex:(NSInteger)lineIndex andPointIndex:(NSInteger)pointIndex{
@@ -200,29 +197,29 @@
 
 - (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"];
 }
 

@@ -6,8 +6,6 @@
 //  Copyright (c) 2013年 kevinzhow. All rights reserved.
 //
 
-#import <UIKit/UIKit.h>
-
 #import "PCAppDelegate.h"
 
 int main(int argc, char * argv[])