类

#import "Healp.h"

@implementation Healp

/*

view 是要设置渐变字体的控件 bgVIew是view的父视图 colors是渐变的组成颜色 startPoint是渐变开始点 endPoint结束点

*/

+(void)TextGradientview:(UIView *)view bgVIew:(UIView *)bgVIew gradientColors:(NSArray *)colors gradientStartPoint:(CGPoint)startPoint endPoint:(CGPoint)endPoint{

CAGradientLayer* gradientLayer1 = [CAGradientLayer layer];

gradientLayer1.frame = view.frame;

gradientLayer1.colors = colors;

gradientLayer1.startPoint =startPoint;

gradientLayer1.endPoint = endPoint;

[bgVIew.layer addSublayer:gradientLayer1];

gradientLayer1.mask = view.layer;

view.frame = gradientLayer1.bounds;

}

/*

control 是要设置渐变字体的控件 bgVIew是control的父视图 colors是渐变的组成颜色 startPoint是渐变开始点 endPoint结束点

*/

+(void)TextGradientControl:(UIControl *)control bgVIew:(UIView *)bgVIew gradientColors:(NSArray *)colors gradientStartPoint:(CGPoint)startPoint endPoint:(CGPoint)endPoint{

CAGradientLayer* gradientLayer1 = [CAGradientLayer layer];

gradientLayer1.frame = control.frame;

gradientLayer1.colors = colors;

gradientLayer1.startPoint =startPoint;

gradientLayer1.endPoint = endPoint;

[bgVIew.layer addSublayer:gradientLayer1];

gradientLayer1.mask = control.layer;

control.frame = gradientLayer1.bounds;

}调用

#import "ViewController.h"

@interface ViewController ()

@property (nonatomic,strong)UILabel *label;

@property (nonatomic,strong)UIButton *btn;

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

/*方法1*/

UILabel* testLabel = [[UILabel alloc] initWithFrame:CGRectMake(100, 200, 400, 50)];

testLabel.text = @"label上渐变方法1";

testLabel.font = [UIFont systemFontOfSize:30];

[self.view addSubview:testLabel];

[Healp TextGradientview:testLabel bgVIew:self.view gradientColors:@[(id)[UIColor redColor].CGColor, (id)[UIColor greenColor].CGColor, (id)[UIColor blueColor].CGColor] gradientStartPoint:CGPointMake(0, 1) endPoint:CGPointMake(1, 1)];

/*方法2*/

_label=[[UILabel alloc]initWithFrame:CGRectMake(10, 300, self.view.frame.size.width-20,50)];

[self.view addSubview:_label];

_label.text=@"label上渐变方法2";

_label.textAlignment=NSTextAlignmentCenter;

_label.font = [UIFont systemFontOfSize:30];

_label.textColor=[UIColor colorWithPatternImage:[UIImage imageNamed:@"gradient"]];

_btn=[[UIButton alloc]initWithFrame:CGRectMake(10, 350, self.view.frame.size.width-20, 100)];

[self.view addSubview:_btn];

_btn.titleLabel.font=[UIFont systemFontOfSize:30];

_btn.titleLabel.numberOfLines=0;

[_btn setTitle:@"button上字体渐变色设置" forState:UIControlStateNormal];

[Healp TextGradientControl:_btn bgVIew:self.view gradientColors:@[(id)[UIColor redColor].CGColor, (id)[UIColor greenColor].CGColor, (id)[UIColor blueColor].CGColor] gradientStartPoint:CGPointMake(0, 1) endPoint:CGPointMake(1, 1)];

}

demo持发秀事应差互过来商类如处。，到图近就这 http://code.cocoachina.com/view/13565到二新，为都础过过发等宗和发制数事前理业待很理断到屏能击示和站公下图以使箭分以近一步调3

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本文来源于网络：查看 >https://blog.csdn.net/qq_33608748/article/details/76685706