成功为ThemeVC添加入下拉刷新UI

Bridging-Header.h

@@ -18,6 +18,6 @@
 #import "SWRevealViewController.h"
 #import "UIImage+ImageEffects.h"
 #import "ZFModalTransitionAnimator.h"
-#import <SDWebImage/UIImageView+WebCache.h>
+#import "PNChart.h"
 
 #endif /* Bridging_Header_h */

zhihuDaily 2.0/Base.lproj/Main.storyboard

@@ -625,6 +625,6 @@
         <image name="switch" width="128" height="128"/>
     </resources>
     <inferredMetricsTieBreakers>
-        <segue reference="IUO-ob-lY1"/>
+        <segue reference="PgJ-Sp-ZXF"/>
     </inferredMetricsTieBreakers>
 </document>

zhihuDaily 2.0/PNChart/LICENSE

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Kevin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

zhihuDaily 2.0/PNChart/PNChart/PNBar.h

@@ -0,0 +1,31 @@
+//
+//  PNBar.h
+//  PNChartDemo
+//
+//  Created by kevin on 11/7/13.
+//  Copyright (c) 2013年 kevinzhow. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+#import <QuartzCore/QuartzCore.h>
+
+@interface PNBar : UIView
+
+
+- (void)rollBack;
+
+@property (nonatomic) float grade;
+@property (nonatomic) float maxDivisor;
+
+@property (nonatomic) CAShapeLayer *chartLine;
+@property (nonatomic) UIColor *barColor;
+@property (nonatomic) UIColor *barColorGradientStart;
+@property (nonatomic) CGFloat barRadius;
+@property (nonatomic) CAShapeLayer *gradientMask;
+
+@property (nonatomic) CAShapeLayer *gradeLayer;
+@property (nonatomic) CATextLayer* textLayer;
+
+@property (nonatomic, assign) BOOL isNegative;          //!< 是否是负数
+@property (nonatomic, assign) BOOL isShowNumber;        //!< 是否显示numbers
+@end

zhihuDaily 2.0/PNChart/PNChart/PNBar.m

@@ -0,0 +1,265 @@
+//
+//  PNBar.m
+//  PNChartDemo
+//
+//  Created by kevin on 11/7/13.
+//  Copyright (c) 2013年 kevinzhow. All rights reserved.
+//
+
+#import "PNBar.h"
+#import "PNColor.h"
+#import <CoreText/CoreText.h>
+
+@interface PNBar ()
+
+@property (nonatomic) float copyGrade;
+
+@end
+
+@implementation PNBar
+
+- (id)initWithFrame:(CGRect)frame
+{
+    self = [super initWithFrame:frame];
+
+    if (self) {
+        _chartLine              = [CAShapeLayer layer];
+        _chartLine.lineCap      = kCALineCapButt;
+        _chartLine.fillColor    = [[UIColor whiteColor] CGColor];
+        _chartLine.lineWidth    = self.frame.size.width;
+        _chartLine.strokeEnd    = 0.0;
+        self.clipsToBounds      = YES;
+        [self.layer addSublayer:_chartLine];
+        self.barRadius = 2.0;
+    }
+
+    return self;
+}
+
+-(void)setBarRadius:(CGFloat)barRadius
+{
+    _barRadius = barRadius;
+    self.layer.cornerRadius = _barRadius;
+}
+
+
+- (void)setGrade:(float)grade
+{
+    _copyGrade = grade;
+    CGFloat startPosY = (1 - grade) * self.frame.size.height;
+
+    UIBezierPath *progressline = [UIBezierPath bezierPath];
+
+    [progressline moveToPoint:CGPointMake(self.frame.size.width / 2.0, self.frame.size.height)];
+    [progressline addLineToPoint:CGPointMake(self.frame.size.width / 2.0, startPosY)];
+
+    [progressline setLineWidth:1.0];
+    [progressline setLineCapStyle:kCGLineCapSquare];
+
+
+    if (_barColor) {
+        _chartLine.strokeColor = [_barColor CGColor];
+    }
+    else {
+        _chartLine.strokeColor = [PNGreen CGColor];
+    }
+
+    if (_grade) {
+
+        CABasicAnimation * pathAnimation = [CABasicAnimation animationWithKeyPath:@"path"];
+        pathAnimation.fromValue = (id)_chartLine.path;
+        pathAnimation.toValue = (id)[progressline CGPath];
+        pathAnimation.duration = 0.5f;
+        pathAnimation.autoreverses = NO;
+        pathAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
+        [_chartLine addAnimation:pathAnimation forKey:@"animationKey"];
+
+        _chartLine.path = progressline.CGPath;
+
+        if (_barColorGradientStart) {
+
+            // Add gradient
+            [self.gradientMask addAnimation:pathAnimation forKey:@"animationKey"];
+            self.gradientMask.path = progressline.CGPath;
+
+            CABasicAnimation* opacityAnimation = [self fadeAnimation];
+            [self.textLayer addAnimation:opacityAnimation forKey:nil];
+
+        }
+
+    }else{
+        CABasicAnimation *pathAnimation = [CABasicAnimation animationWithKeyPath:@"strokeEnd"];
+        pathAnimation.duration = 1.0;
+        pathAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
+        pathAnimation.fromValue = @0.0f;
+        pathAnimation.toValue = @1.0f;
+        [_chartLine addAnimation:pathAnimation forKey:@"strokeEndAnimation"];
+
+        _chartLine.strokeEnd = 1.0;
+
+        _chartLine.path = progressline.CGPath;
+        // Check if user wants to add a gradient from the start color to the bar color
+        if (_barColorGradientStart) {
+
+            // Add gradient
+            self.gradientMask = [CAShapeLayer layer];
+            self.gradientMask.fillColor = [[UIColor clearColor] CGColor];
+            self.gradientMask.strokeColor = [[UIColor blackColor] CGColor];
+            self.gradientMask.lineWidth    = self.frame.size.width;
+            self.gradientMask.frame = CGRectMake(0, 0, self.bounds.size.width, self.bounds.size.height);
+            self.gradientMask.path = progressline.CGPath;
+
+
+            CAGradientLayer *gradientLayer = [CAGradientLayer layer];
+            gradientLayer.startPoint = CGPointMake(0.0,0.0);
+            gradientLayer.endPoint = CGPointMake(1.0 ,0.0);
+            gradientLayer.frame = CGRectMake(0, 0, self.bounds.size.width, self.bounds.size.height);
+            UIColor *middleColor = [UIColor colorWithWhite:255/255 alpha:0.8];
+            NSArray *colors = @[
+                                (__bridge id)self.barColor.CGColor,
+                                (__bridge id)middleColor.CGColor,
+                                (__bridge id)self.barColor.CGColor
+                                ];
+            gradientLayer.colors = colors;
+
+            [gradientLayer setMask:self.gradientMask];
+
+            [_chartLine addSublayer:gradientLayer];
+
+            self.gradientMask.strokeEnd = 1.0;
+            [self.gradientMask addAnimation:pathAnimation forKey:@"strokeEndAnimation"];
+
+            CABasicAnimation* opacityAnimation = [self fadeAnimation];
+            [self.textLayer addAnimation:opacityAnimation forKey:nil];
+        }
+    }
+
+    _grade = grade;
+
+}
+
+
+- (void)rollBack
+{
+    [UIView animateWithDuration:0.3 delay:0.0 options:UIViewAnimationOptionCurveEaseOut animations: ^{
+        _chartLine.strokeColor = [UIColor clearColor].CGColor;
+    } completion:nil];
+}
+
+- (void)setBarColorGradientStart:(UIColor *)barColorGradientStart
+{
+    // Set gradient color, remove any existing sublayer first
+    for (CALayer *sublayer in [_chartLine sublayers]) {
+        [sublayer removeFromSuperlayer];
+    }
+    _barColorGradientStart = barColorGradientStart;
+
+    [self setGrade:_grade];
+
+}
+
+// Only override drawRect: if you perform custom drawing.
+// An empty implementation adversely affects performance during animation.
+- (void)drawRect:(CGRect)rect
+{
+    CGContextRef context = UIGraphicsGetCurrentContext();
+
+    CGContextSetFillColorWithColor(context, self.backgroundColor.CGColor);
+    CGContextFillRect(context, rect);
+}
+
+
+// add number display on the top of bar
+-(CGPathRef)gradePath:(CGRect)rect
+{
+    return nil;
+}
+
+-(CATextLayer*)textLayer
+{
+    if (!_textLayer) {
+        _textLayer = [[CATextLayer alloc]init];
+        [_textLayer setString:@"0"];
+        [_textLayer setAlignmentMode:kCAAlignmentCenter];
+        [_textLayer setForegroundColor:[[UIColor colorWithRed:178/255.0 green:178/255. blue:178/255.0 alpha:1.0] CGColor]];
+       _textLayer.hidden = YES;
+
+    }
+
+    return _textLayer;
+}
+
+-(void)setGradeFrame:(CGFloat)grade startPosY:(CGFloat)startPosY
+{
+    CGFloat textheigt = self.bounds.size.height*self.grade;
+
+    CGFloat topSpace = self.bounds.size.height * (1-self.grade);
+    CGFloat textWidth = self.bounds.size.width;
+
+    [_chartLine addSublayer:self.textLayer];
+    [self.textLayer setFontSize:18.0];
+
+    [self.textLayer setString:[[NSString alloc]initWithFormat:@"%0.f",grade*self.maxDivisor]];
+
+    CGSize size = CGSizeMake(320,2000); //设置一个行高上限
+    NSDictionary *attributes = @{NSFontAttributeName:[UIFont systemFontOfSize:18.0]};
+    size = [self.textLayer.string boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:attributes context:nil].size;
+    float verticalY ;
+
+    if (size.height>=textheigt) {
+
+      verticalY = topSpace - size.height;
+    } else {
+      verticalY = topSpace +  (textheigt-size.height)/2.0;
+    }
+
+    [self.textLayer setFrame:CGRectMake((textWidth-size.width)/2.0,verticalY, size.width,size.height)];
+    self.textLayer.contentsScale = [UIScreen mainScreen].scale;
+
+}
+
+- (void)setIsShowNumber:(BOOL)isShowNumber{
+  if (isShowNumber) {
+    self.textLayer.hidden = NO;
+    [self setGradeFrame:_copyGrade startPosY:0];
+  }else{
+    self.textLayer.hidden = YES;
+  }
+}
+- (void)setIsNegative:(BOOL)isNegative{
+  if (isNegative) {
+    [self.textLayer setString:[[NSString alloc]initWithFormat:@"- %1.f",_grade*self.maxDivisor]];
+
+    CGSize size = CGSizeMake(320,2000); //设置一个行高上限
+    NSDictionary *attributes = @{NSFontAttributeName:[UIFont systemFontOfSize:18.0]};
+    size = [self.textLayer.string boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:attributes context:nil].size;
+    CGRect frame = self.textLayer.frame;
+    frame.origin.x = (self.bounds.size.width - size.width)/2.0;
+    frame.size = size;
+    self.textLayer.frame = frame;
+
+    CABasicAnimation* rotationAnimation;
+    rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
+    rotationAnimation.toValue = [NSNumber numberWithFloat: M_PI];
+    [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
+    rotationAnimation.duration = 0.1;
+    rotationAnimation.repeatCount = 0;//你可以设置到最大的整数值
+    rotationAnimation.cumulative = NO;
+    rotationAnimation.removedOnCompletion = NO;
+    rotationAnimation.fillMode = kCAFillModeForwards;
+    [self.textLayer addAnimation:rotationAnimation forKey:@"Rotation"];
+
+  }
+}
+
+-(CABasicAnimation*)fadeAnimation
+{
+    CABasicAnimation* fadeAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
+    fadeAnimation.fromValue = [NSNumber numberWithFloat:0.0];
+    fadeAnimation.toValue = [NSNumber numberWithFloat:1.0];
+    fadeAnimation.duration = 2.0;
+
+    return fadeAnimation;
+}
+
+@end