//
//  CAGradientView.h
//  MaskView
//
//  Created by YouXianMing on 16/2/15.
//  Copyright © 2016年 YouXianMing. All rights reserved.
//

#import <UIKit/UIKit.h>@interface CAGradientView : UIView/***  CAGradientLayer's colors.*/
@property (nonatomic, strong) NSArray  *colors;/***  CAGradientLayer's locations.*/
@property (nonatomic, strong) NSArray  *locations;/***  CAGradientLayer's startPoint.*/
@property (nonatomic)         CGPoint   startPoint;/***  CAGradientLayer's endPoint.*/
@property (nonatomic)         CGPoint   endPoint;@end

//
//  CAGradientView.m
//  MaskView
//
//  Created by YouXianMing on 16/2/15.
//  Copyright © 2016年 YouXianMing. All rights reserved.
//

#import "CAGradientView.h"@interface CAGradientView () {CAGradientLayer   *_gradientLayer;
}@end@implementation CAGradientView+ (Class)layerClass {return [CAGradientLayer class];
}- (instancetype)initWithFrame:(CGRect)frame {if (self = [super initWithFrame:frame]) {_gradientLayer = (CAGradientLayer *)self.layer;}return self;
}#pragma mark - 重写setter,getter方法@synthesize colors = _colors;- (void)setColors:(NSArray *)colors {_colors = colors;// 将color转换成CGColorNSMutableArray *cgColors = [NSMutableArray array];for (UIColor *tmp in colors) {id cgColor = (__bridge id)tmp.CGColor;[cgColors addObject:cgColor];}// 设置Colors_gradientLayer.colors = cgColors;
}- (NSArray *)colors {return _colors;
}@synthesize locations = _locations;- (void)setLocations:(NSArray *)locations {_locations               = locations;_gradientLayer.locations = _locations;
}- (NSArray *)locations {return _locations;
}@synthesize startPoint = _startPoint;- (void)setStartPoint:(CGPoint)startPoint {_startPoint               = startPoint;_gradientLayer.startPoint = startPoint;
}- (CGPoint)startPoint {return _startPoint;
}@synthesize endPoint = _endPoint;- (void)setEndPoint:(CGPoint)endPoint {_endPoint               = endPoint;_gradientLayer.endPoint = endPoint;
}- (CGPoint)endPoint {return _endPoint;
}@end